A maintenance tool for belt conveyor rollers in coal conveying system

Abstract

The present invention provides a coal conveying system belt conveyor roller maintenance tool, which relates to the technical field of roller maintenance, and includes a wire tube, a first wire screw and a second wire screw, wherein the first wire screw and the second wire screw are respectively installed at the upper and lower parts inside the wire tube, and the first wire screw and the second wire screw are both adapted to the wire tube thread, a supporting angle steel is provided at the bottom of the first wire screw, a clamping plate is provided at the top of the second wire screw, and a rotating block is provided for internal rotation of the clamping plate; the present invention buckles the supporting angle steel on the belt frame to prevent the tool from slipping and flying out, supports the belt surface under the belt surface and gets stuck by the supporting angle steel, and then rotates the rotating handle to drive the wire tube to rotate, and utilizes the threaded action of the wire tube and the first wire screw and the second wire screw to make the first wire screw and the second wire screw extend out based on the wire tube to support the belt surface, so as to facilitate the replacement of the rollers, and the supporting angle steel can be driven to rotate and change the angle by the self-locking component to adapt to the belt surface on the supporting inclined roller, and the operation is safe and the applicability is strong.

Description

Technical Field

[0001] The invention relates to the technical field of roller maintenance, and in particular to a roller maintenance tool for a belt conveyor in a coal conveying system. Background Art

[0002] The 660MW unit coal handling system refers to a series of equipment and processes that serve the 660MW unit and realize the transportation and control of coal from the coal unloading point to the coal yard and from the coal yard to the boiler coal bunker. The system mainly includes key links such as coal unloading, coal stacking, coal loading and coal blending. Through the coordinated work of belt conveyors, bucket wheel stackers and reclaimers, iron removers, coal screeners and other equipment, the system completes the tasks of coal loading, unloading, transportation, crushing, impurity removal, screening, metering and storage to ensure that the boiler coal bunker is provided with coal that meets the requirements on time. As an auxiliary control system of a thermal power plant, the stable operation of the coal handling system is crucial to ensure the normal power generation of the unit; The coal conveying system of the current 660MW unit has a long operating time and a large carrying capacity. Replacing rollers is one of the most frequent operations of the maintenance team. Each time the rollers are replaced, personnel are required to use hand winches, crowbars, and manual operations to lift the belt surface multiple times. The operation is not only time-consuming and laborious, but also increases the labor intensity of employees, and also affects the maintenance progress. There are certain safety hazards. Therefore, the present invention proposes a coal conveying system belt conveyor roller maintenance tool to solve the problems existing in the prior art. Summary of the invention

[0003] In view of the above problems, the present invention proposes a coal conveying system belt conveyor roller maintenance tool. The coal conveying system belt conveyor roller maintenance tool is easy to carry, safe to operate, and has strong applicability. It can be adapted to both flat rollers and V-shaped rollers, thereby reducing the labor intensity of employees and improving maintenance efficiency. The rotary handle is driven to provide a larger torque to achieve the purpose of saving labor.

[0004] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a coal conveying system belt conveyor roller maintenance tool, including a wire tube, a first screw and a second screw, the first screw and the second screw are respectively installed at the upper and lower parts of the wire tube, and the first screw and the second screw are both adapted to the thread of the wire tube, the bottom of the first screw is provided with a supporting angle steel, the top of the second screw is provided with a clamping plate, and a rotating block is provided inside the clamping plate for rotation, the upper part of the rotating block is connected with a supporting angle steel, and the rotating block is driven to rotate by a self-locking component; Rotating handles are arranged at the middle positions of both ends of the wire tube.

[0005] A further improvement is that the supporting angle steel and the supporting angle steel are both U-shaped, and the planes of the supporting angle steel and the supporting angle steel are both facing upwards.

[0006] A further improvement is that the self-locking component includes a worm wheel and a shaft plate, the worm wheel is arranged at the front end of the splint, and the worm wheel is connected to the rotating block, the shaft plate is arranged below the front end of the splint, and a worm is rotated on the inner side of the shaft plate, the worm is adapted to the worm wheel, and a knob is connected to one side of the worm.

[0007] A further improvement is that a first gasket is provided on the top of the rotating block, and a fixing hole is provided at the edge of the first gasket, and the first gasket is fixed to the supporting angle steel through the fixing hole and bolts.

[0008] A further improvement is that a rubber strip is provided on the top of the supporting angle steel, and a plurality of groups of the rubber strips are provided at equal intervals.

[0009] A further improvement is that a second gasket is provided at the bottom of the first screw, and a fastening hole is provided at the edge of the second gasket, and the second gasket is fixed to the supporting angle steel through the fastening hole and bolts.

[0010] A further improvement is that a first airbag plate and a second airbag plate are respectively provided on both sides inside the supporting angle steel, connecting air pipes are connected to both ends above the first airbag plate and the second airbag plate, an inflation pipe is connected to the first airbag plate, and an input end of the inflation pipe is connected to an air pressure pump, and an inflatable check valve is provided on the air pressure pump.

[0011] A further improvement is that an inner layer is provided inside the side wall of the wire tube, the inner layer is filled with reinforcing ribs, an inner thread is provided on the inner side of the wire tube, and the inner thread is compatible with the first screw and the second screw.

[0012] A further improvement is that the first screw and the second screw have the same structure, and both comprise an inner rod and an outer sleeve, the inner rod is arranged inside the outer sleeve, and a filling layer is provided between the inner rod and the outer sleeve, and the interior of the filling layer is filled with spiral ribs.

[0013] A further improvement is that a nut mouth is provided at the middle position of both ends of the wire tube, an outer thread is provided at the inner end of the outer side of the rotating handle, and the outer thread is adapted to the nut mouth thread, and a nut cover is provided at the outer end of the rotating handle, and the nut cover is adapted to the outer thread.

[0014] The beneficial effects of the present invention are: 1. The present invention buckles the supporting angle steel on the belt frame to prevent the tool from slipping and flying out, and supports and clamps the supporting angle steel under the belt surface. Then, the rotating handle is turned to drive the wire tube to rotate, and the threaded action of the wire tube and the first and second lead screws can be used to make the first and second lead screws extend out based on the wire tube to support the belt surface, so as to facilitate the replacement of rollers. The supporting angle steel can be driven to rotate and change the angle through the self-locking component to adapt to the belt surface on the supporting inclined roller. In summary, the present invention is easy to carry, safe to operate, and has strong applicability. Both flat rollers and V-shaped rollers can be adapted, which reduces the labor intensity of employees and improves the maintenance efficiency. The rotating handle is driven to provide a large torque to achieve the purpose of saving labor.

[0015] 2. When the supporting angle steel is buckled onto the belt rack, the first airbag plate is inflated through the air pressure pump via the inflation tube, and the first airbag plate cooperates with the connecting air tube to inflate the second airbag plate. Thus, the two groups of airbag plates are inflated and expanded, which is convenient for clamping the belt rack, improving the fixing stability of the tool, being safer, and being adaptable to belt racks of different calibers.

[0016] 3. The present invention uses the nut group on the wire tube to thread the rotating handle, and the nut cover on the outer end of the rotating handle can also thread other rotating handles, thereby enabling adaptive splicing according to operational needs and diversified functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention; Figure 2 It is a schematic diagram of the self-locking assembly of the present invention; Figure 3 It is a schematic diagram of the support angle steel of the present invention; Figure 4 It is a schematic diagram of the composition of the silk tube of the present invention; Figure 5 It is a schematic diagram of the first screw component of the present invention; Figure 6 It is a schematic diagram of a rotating handle of the present invention.

[0018] Among them: 1. Wire tube; 2. First lead screw; 3. Second lead screw; 4. Support angle steel; 5. Clamp; 6. Turn block; 7. Support angle steel; 8. Rotating handle; 9. Worm gear; 10. Shaft plate; 11. Worm; 12. Knob; 13. First gasket; 14. Rubber strip; 15. Second gasket; 16. First airbag plate; 17. Second airbag plate; 18. Connecting air pipe; 19. Inflating pipe; 20. Air pressure pump; 21. Reinforcement rib; 22. Internal thread; 23. Inner rod; 24. Outer sleeve; 25. Spiral rib; 26. Nut mouth; 27. External thread; 28. Nut cover. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0020] Embodiment 1 according to Figure 1 , 2 , 3, 4, 5, and 6, the present embodiment proposes a maintenance tool for a belt conveyor roller of a coal conveying system, comprising a wire tube 1, a first wire screw 2, and a second wire screw 3, wherein the first wire screw 2 and the second wire screw 3 are respectively installed at the upper and lower parts inside the wire tube 1, and the first wire screw 2 and the second wire screw 3 are threadably adapted to the wire tube 1, a supporting angle steel 4 is provided at the bottom of the first wire screw 2, a clamping plate 5 is provided at the top of the second wire screw 3, and a rotating block 6 is rotatably provided inside the clamping plate 5, a supporting angle steel 7 is connected to the top of the rotating block 6, and the rotating block 6 is driven to rotate by a self-locking component; The middle positions of both ends of the wire tube 1 are provided with rotating handles 8. When in use, the supporting angle steel 4 is buckled on the belt frame to prevent the tool from slipping and flying out, and the supporting angle steel 7 is supported and stuck under the belt surface, and then the rotating handle 8 is turned to drive the wire tube 1 to rotate, and the first screw 2 and the second screw 3 are used to make the first screw 2 and the second screw 3 extend based on the wire tube 1 to support the belt surface, which is convenient for replacing the rollers. The supporting angle steel 7 can be driven to rotate and change the angle through the self-locking component to adapt to the belt surface on the supporting inclined roller. In summary, it is easy to carry, safe to operate, and has strong applicability. Both flat rollers and V-shaped rollers can be adapted, which reduces the labor intensity of employees and improves the maintenance efficiency. The rotating handle 8 drives and provides a large torque to achieve the purpose of saving effort.

[0021] The support angle steel 4 and the supporting angle steel 7 are both U-shaped, and the planes of the support angle steel 4 and the supporting angle steel 7 are both facing upward. The support angle steel 4 is buckled on the belt frame, and the supporting angle steel 7 is carried under the belt surface and stuck.

[0022] The self-locking assembly includes a worm wheel 9 and a shaft plate 10. The worm wheel 9 is arranged at the front end of the clamping plate 5, and the worm wheel 9 is connected to the rotating block 6. The shaft plate 10 is arranged below the front end of the clamping plate 5, and a worm 11 is rotatably arranged inside the shaft plate 10. The worm 11 is adapted to the worm wheel 9, and a knob 12 is connected to one side of the worm 11. When in use, the knob 12 is rotated to drive the worm 11 to rotate, and the worm 11 drives the worm wheel 9 to rotate, thereby driving the rotating block 6 to rotate, driving the supporting angle steel 7 to rotate and change the angle to adapt to the belt surface on the supporting inclined roller.

[0023] A first gasket 13 is provided on the top of the rotating block 6, and a fixing hole is provided at the edge of the first gasket 13, and the first gasket 13 is fixed to the supporting angle steel 7 through the fixing hole and bolts, so as to facilitate the installation or removal of the rotating block 6 and the supporting angle steel 7.

[0024] The top of the supporting angle steel 7 is provided with a rubber strip 14, and the rubber strip 14 is provided with multiple groups at equal intervals. When in use, the supporting angle steel 4 is buckled on the belt frame to prevent the tool from slipping and flying out, and the supporting angle steel 7 is carried under the belt surface and the rubber strip 14 is used to increase the friction to jam (to prevent the supporting angle steel 7 and the second lead screw 3 from rotating with the wire tube 1 when the wire tube 1 is rotated to adjust the length support), and then the rotating handle 8 is turned to drive the wire tube 1 to rotate, and the first lead screw 2 and the second lead screw 3 can be used to make the first lead screw 2 and the second lead screw 3 extend from the wire tube 1 to support the belt surface, so as to facilitate the replacement of the roller.

[0025] A second gasket 15 is provided at the bottom of the first screw 2, and a fastening hole is provided at the edge of the second gasket 15, and the second gasket 15 is fixed to the support angle steel 4 through the fastening hole and bolts, so as to facilitate the installation or removal of the first screw 2 and the support angle steel 4.

[0026] The first airbag plate 16 and the second airbag plate 17 are respectively provided on both sides of the support angle steel 4. The two ends above the first airbag plate 16 and the second airbag plate 17 are connected with connecting air pipes 18. The first airbag plate 16 is connected with an inflation pipe 19, and the input end of the inflation pipe 19 is connected with an air pressure pump 20. The air pressure pump 20 is provided with a deflated check valve. When in use, when the support angle steel 4 is buckled on the belt frame, the first airbag plate 16 is inflated through the inflation pipe 19 by the air pressure pump 20, and the first airbag plate 16 cooperates with the connecting air pipe 18 to inflate the second airbag plate 17. Thus, the two groups of airbag plates are inflated and expanded, which is convenient for clamping the belt frame, improving the fixing stability of the tool, making it safer, and adapting to belt frames of different calibers. The deflated check valve prevents gas leakage during inflation, and when deflated, the deflation port on the deflated check valve is opened.

[0027] Embodiment 2 according to Figure 1 , 2 , 3, 4, 5, and 6, the present embodiment proposes a maintenance tool for a belt conveyor roller of a coal conveying system, comprising a wire tube 1, a first wire screw 2, and a second wire screw 3, wherein the first wire screw 2 and the second wire screw 3 are respectively installed at the upper and lower parts inside the wire tube 1, and the first wire screw 2 and the second wire screw 3 are threadably adapted to the wire tube 1, a supporting angle steel 4 is provided at the bottom of the first wire screw 2, a clamping plate 5 is provided at the top of the second wire screw 3, and a rotating block 6 is rotatably provided inside the clamping plate 5, a supporting angle steel 7 is connected to the top of the rotating block 6, and the rotating block 6 is driven to rotate by a self-locking component; The middle positions of both ends of the wire tube 1 are provided with rotating handles 8. When in use, the supporting angle steel 4 is buckled on the belt frame to prevent the tool from slipping and flying out, and the supporting angle steel 7 is supported and stuck under the belt surface, and then the rotating handle 8 is turned to drive the wire tube 1 to rotate, and the first screw 2 and the second screw 3 are used to make the first screw 2 and the second screw 3 extend based on the wire tube 1 to support the belt surface, which is convenient for replacing the rollers. The supporting angle steel 7 can be driven to rotate and change the angle through the self-locking component to adapt to the belt surface on the supporting inclined roller. In summary, it is easy to carry, safe to operate, and has strong applicability. Both flat rollers and V-shaped rollers can be adapted, which reduces the labor intensity of employees and improves the maintenance efficiency. The rotating handle 8 drives and provides a large torque to achieve the purpose of saving effort.

[0028] The support angle steel 4 and the supporting angle steel 7 are both U-shaped, and the planes of the support angle steel 4 and the supporting angle steel 7 are both facing upward. The support angle steel 4 is buckled on the belt frame, and the supporting angle steel 7 is carried under the belt surface and stuck.

[0029] The inner wall of the wire tube 1 is provided with an inner interlayer, and the inner interlayer is filled with reinforcing ribs 21, which is more solid and not easy to break. The inner side of the wire tube 1 is provided with an internal thread 22, and the internal thread 22 is adapted to the first screw 2 and the second screw 3. The first screw 2 and the second screw 3 have the same structure, and the first screw 2 and the second screw 3 both include an inner rod 23 and an outer sleeve 24, and the inner rod 23 is arranged inside the outer sleeve 24, and a filling layer is provided between the inner rod 23 and the outer sleeve 24, and the filling layer is filled with spiral ribs 25. It is more solid and not easy to break.

[0030] The middle positions of both ends of the wire tube 1 are provided with nut mouths 26, the inner end of the outer side of the rotating handle 8 is provided with external threads 27, and the external threads 27 are threadedly adapted to the nut mouths 26, and the outer end of the rotating handle 8 is provided with a nut cover 28, and the nut cover 28 is adapted to the external threads 27. When in use, the rotating handle 8 is threadedly installed through the nut group 26 on the wire tube 1, and the nut cover 28 at the outer end of the rotating handle 8 can also be threadedly installed with other rotating handles 8, thereby enabling adaptive splicing according to operational needs, and diversified functions.

[0031] The coal conveying system belt conveyor roller maintenance tool is buckled on the belt frame through the supporting angle steel 4 to prevent the tool from slipping and flying out. The supporting angle steel 7 is carried under the belt surface and stuck. Then the rotating handle 8 is turned to drive the wire tube 1 to rotate. The threaded action of the wire tube 1 and the first screw 2 and the second screw 3 can be used to make the first screw 2 and the second screw 3 extend based on the wire tube 1 to support the belt surface, which is convenient for replacing the rollers. The supporting angle steel 7 can be driven to rotate and change the angle through the self-locking component to adapt to the belt surface on the supporting inclined roller. In summary, it is easy to carry, safe to operate, and has strong applicability. It can adapt to both flat rollers and V-shaped rollers, which reduces the labor intensity of employees and improves the maintenance efficiency. The rotating handle 8 is driven to provide a large torque to achieve the purpose of saving labor. When the present invention buckles the support angle steel 4 on the belt rack, the first airbag plate 16 is inflated through the air pressure pump 20 through the inflation tube 19, and the first airbag plate 16 cooperates with the connecting air tube 18 to inflate the second airbag plate 17, thereby the two groups of airbag plates are inflated and expanded, which is convenient for clamping the belt rack, improving the fixing stability of the tool, making it safer, and adapting to belt racks of different calibers. At the same time, the present invention threadably installs the rotating handle 8 through the nut group 26 on the wire tube 1, and the nut cover 28 at the outer end of the rotating handle 8 can also threadably install other rotating handles 8, thereby enabling adaptive splicing according to operational needs, and diversifying functions.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A coal conveyor belt conveyor roller maintenance tool, comprising a wire tube (1), a first lead screw (2) and a second lead screw (3), characterized in that: The first lead screw (2) and the second lead screw (3) are respectively installed at the upper and lower parts of the wire tube (1), and the first lead screw (2) and the second lead screw (3) are both threadably matched with the wire tube (1); a supporting angle steel (4) is provided at the bottom of the first lead screw (2); a clamping plate (5) is provided at the top of the second lead screw (3); a rotating block (6) is provided inside the clamping plate (5) for rotation; a supporting angle steel (7) is connected to the top of the rotating block (6), and the rotating block (6) is driven to rotate by a self-locking component; Rotating handles (8) are provided at the middle positions of both ends of the wire tube (1).

2. A coal conveyor belt conveyor roller maintenance tool according to claim 1, characterized in that: The supporting angle steel (4) and the supporting angle steel (7) are both U-shaped, and the planes of the supporting angle steel (4) and the supporting angle steel (7) are both facing upwards.

3. A coal conveyor belt conveyor roller maintenance tool according to claim 1, characterized in that: The self-locking assembly comprises a worm wheel (9) and a shaft plate (10), wherein the worm wheel (9) is arranged at the front end of the clamping plate (5), and the worm wheel (9) is connected to the rotating block (6), the shaft plate (10) is arranged below the front end of the clamping plate (5), and a worm (11) is rotatably arranged on the inner side of the shaft plate (10), the worm (11) is adapted to the worm wheel (9), and a knob (12) is connected to one side of the worm (11).

4. A coal conveyor belt conveyor roller maintenance tool according to claim 1, characterized in that: A first gasket (13) is provided on the top of the rotating block (6), and a fixing hole is provided at the edge of the first gasket (13), and the first gasket (13) is fixed to the supporting angle steel (7) through the fixing hole and bolts.

5. A coal conveyor belt conveyor roller maintenance tool according to claim 4, characterized in that: A rubber strip (14) is provided on the top of the supporting angle steel (7), and a plurality of groups of the rubber strips (14) are provided at equal intervals.

6. A coal conveyor belt conveyor roller maintenance tool according to claim 1, characterized in that: A second gasket (15) is provided at the bottom of the first lead screw (2), and a fastening hole is provided at the edge of the second gasket (15), and the second gasket (15) is fixed to the supporting angle steel (4) through bolts in the fastening hole.

7. A coal conveyor belt conveyor roller maintenance tool according to claim 1, characterized in that: A first airbag plate (16) and a second airbag plate (17) are respectively provided on both sides of the interior of the supporting angle steel (4); both ends above the first airbag plate (16) and the second airbag plate (17) are connected to connecting air pipes (18); an inflation pipe (19) is connected to the first airbag plate (16); and an input end of the inflation pipe (19) is connected to an air pressure pump (20); and a deflation-type check valve is provided on the air pressure pump (20).

8. A coal conveyor belt conveyor roller maintenance tool according to claim 1, characterized in that: An inner interlayer is provided inside the side wall of the wire tube (1), and the inner interlayer is filled with reinforcing ribs (21). An inner thread (22) is provided on the inner side of the wire tube (1), and the inner thread (22) is compatible with the first lead screw (2) and the second lead screw (3).

9. A coal conveyor belt conveyor roller maintenance tool according to claim 8, characterized in that: The first lead screw (2) and the second lead screw (3) have the same structure, and both the first lead screw (2) and the second lead screw (3) comprise an inner rod (23) and an outer sleeve (24), the inner rod (23) being arranged inside the outer sleeve (24), and a filling layer being arranged between the inner rod (23) and the outer sleeve (24), the interior of the filling layer being filled with spiral ribs (25).

10. A coal conveyor belt conveyor roller maintenance tool according to any one of claims 1 to 9, characterized in that: Nut mouths (26) are provided at middle positions at both ends of the wire tube (1); an outer thread (27) is provided at the inner end of the outer side of the rotating handle (8); and the outer thread (27) is adapted to the thread of the nut mouth (26); and a nut cover (28) is provided at the outer end of the rotating handle (8); and the nut cover (28) is adapted to the outer thread (27).

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