Coal conveyor belt deflection correction device

Abstract

The present invention relates to the technical field of belt deflection correction, and discloses a coal conveyor belt deflection correction device, which includes a mounting frame connected to a coal conveyor line and a support frame symmetrically provided on the mounting frame, the support frames on both sides are both provided with bearing stands, the bearing stands on both sides are connected with carrier roller bodies provided through the bearing stands, threaded sleeves having a cylindrical wall thread are fitted on opposite ends of the carrier roller bodies on both sides, the threaded sleeves contact the bottom surface of the coal conveyor belt body on the coal conveyor line, deflection correction motors are connected to ends of the carrier roller bodies on both sides away from the threaded sleeves, adjustment assemblies are provided on the tops of the support frames on both sides, and proximity switches with detection ends facing the edges of the coal conveyor belt body are connected to the adjustment assemblies on both sides, the present invention has the characteristics of simple structure, high practicality and high deflection correction rate.

Description

[Technical field]

[0001] The present invention relates to the technical field of belt deflection correction, in particular to a deflection correction device for coal conveyor belts. [Background technology]

[0002] Belt conveyor is the main method of transporting bulk materials in power plants, port mouths, mines and other industries. Its main accessory equipment, the conveyor belt, is the simplest and most widely used transportation device in the process of material transportation and transshipment. The bucket wheel stacker recliner arranged in the coal storage yard is an important part of the transshipment system. The belt in the coal yard is a bidirectional running belt, but due to the change of station and stockyard, the movement of the bucket wheel stacker recliner changes the stock point, so the belt will be misaligned due to eccentric load. At the same time, most of the coal yards are outdoors or semi-outdoors. In the rainy and snowy season, the transmission device and bidirectional belt will slip, and the return belt will also deviate left and right, causing the material to fall off the bidirectional belt, so that the transportation capacity does not meet the design requirements, the wear of the belt edge will be severe, the service life will be short, and accidents will occur frequently, resulting in a reduction in the transportation capacity of the system.

[0003] At present, Chinese patent application No. CN204078748U discloses an electric deflection correction device for coal conveyor belt, which includes a belt, an aligning carrier roller and a base, and further includes two belt deflection detection devices, a control box, a belt turning monitoring device and a deflection correction driving device, which uses an ultrasonic sensor without contacting the belt and without damaging the coal conveyor belt, and both unidirectional and bidirectional rotating belts are applicable to the device, and the position of the electric push rod can be locked, which makes it easy to determine the optimal deflection correction operating position of the aligning carrier roller. However, the above patent application requires a large torque when driven vertically, and the motor consumes high power, and does not consider the restoration means of the belt conveyor after the deflection correction is completed, which affects the practical effect of production.

[0004] Chinese patent application No. CN205114387U discloses a bidirectional belt return portion deflection correction device for correcting the deflection of the return portion of a bidirectional running belt, in which a mounting base is connected to an intermediate frame, a bracket is connected to and fixed on the intermediate frame through the mounting base, a liftable adjustment screw is mounted between the mounting base and the bracket, a main shaft is fixed vertically at the center position of the bracket, a central shaft is connected to the main shaft through a bearing 1 and a sealing ring 2, an inner cylinder shaft is fixed to the central shaft, a deflection correction roller is connected to the sealing ring 2, a shaft The deflection correction roller is attached to the inner cylinder shaft through a support 2, and the two deflection correction rollers are arranged in a "V" shape relative to the belt, and the limiting shaft is fixed to the outside of the inner cylinder shaft. In the above patent application, the deflection correction force on the belt comes from the lateral component of the friction force generated by the deflection correction roller and the surface of the belt, which has the advantage that the deflection correction force is large and improves the production efficiency of the system. However, the above patent application requires a great deal of improvement on the original support frame and carrier roller, and the structure is complicated. Based on the conventional one, the utilization rate is low and the production cost is high. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above, the present invention provides a deflection correction device for a coal conveyor belt.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows: the deflection correction device of the coal conveyor belt includes a mounting frame connected to the coal conveyor line, and a support frame symmetrically provided on the mounting frame, the support frames on both sides are provided with bearing stands, the bearing stands on both sides are connected with carrier roller bodies provided through the bearing stands, threaded sleeves with threads on the cylindrical wall are fitted on the opposite ends of the carrier roller bodies on both sides, the threaded sleeves contact the bottom surface of the coal conveyor belt body in the coal conveyor line, deflection correction motors are connected to the ends of the carrier roller bodies on both sides away from the threaded sleeves, adjustment assemblies are provided on the tops of the support frames on both sides, and proximity switches with detection ends facing the edges of the coal conveyor belt body are connected to the adjustment assemblies on both sides.

[0007] Preferably, anti-slip grooves are formed in both of the carrier roller bodies on both sides, anti-slip portions that fit the anti-slip grooves are provided in both of the threaded sleeves on both sides, and the anti-slip portions on the threaded sleeves on both sides are inserted into the anti-slip grooves of the corresponding carrier roller bodies.

[0008] Preferably, an overrunning clutch is provided at each connection between the carrier roller body and the corresponding deflection correction motor on both sides.

[0009] Preferably, the adjustment assembly includes a guide block, the guide block being provided on the top of the support frame, a slide groove being formed in the guide block, an adjustment frame being provided above the guide block, a slide portion being provided at the bottom of the adjustment frame and slidably connected within the slide groove, and a proximity switch being provided on the adjustment frame.

[0010] Preferably, a tightening bolt is screwed into the adjustment frame through the adjustment frame, and a threaded hole that fits the tightening bolt is drilled in the groove wall at the bottom of the slide groove, and the threaded hole is uniformly distributed along the sliding direction of the adjustment frame in the groove wall at the bottom of the slide groove.

[0011] Preferably, the deflection correction device further includes a host computer, which is electrically connected to the deflection correction motor and the proximity switch, respectively.

[0012] Compared with the prior art, the advantages of the present invention are as follows:

[0013] In the present invention, through the arrangement of assemblies such as carrier roller body, threaded sleeve, deflection compensation motor, and proximity switch, when the coal conveyor belt body is deflected, the proximity switch can detect that the distance between the coal conveyor belt body and the proximity switch is too small, in this case, the deflection compensation motor will be operated to move the threaded sleeve to rotate, so that the threaded sleeve generates a lateral force on the coal conveyor belt body under the action of the thread, and performs deflection compensation, and through the lateral pushing principle of the thread, the deflection compensation of the coal conveyor belt body is realized. Compared with the prior art, the present invention has the characteristics of simple structure, high practicability and high deflection compensation rate. [Brief description of the drawings]

[0014] In order to more clearly describe the technical solutions of the embodiments of the present invention, the following briefly introduces drawings necessary for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0015] [Figure 1] FIG. 2 is a structural schematic diagram of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view of a threaded sleeve according to the present invention. [Diagram 3]FIG. 2 is a structural schematic diagram of an adjustment assembly according to the present invention; [Figure 4] FIG. 2 is a cross-sectional view of an adjustment assembly according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and obviously, the described embodiments are only some but not all of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention. (Example)

[0017] As shown in Figs. 1-4, this embodiment provides a deflection correction device for a coal conveyor belt, including a mounting frame 1 connected to a coal conveyor line and a support frame 2 symmetrically provided on the mounting frame 1. The support frames 2 on both sides are provided with bearing pedestals 3, and the bearing pedestals 3 on both sides are connected with carrier roller bodies 4 provided to penetrate the bearing pedestals 3. The opposing ends of the carrier roller bodies 4 on both sides are fitted with threaded sleeves 5 having a screw thread on the cylindrical wall. The threaded sleeves 5 contact the bottom surface of the coal conveyor belt body 6 on the coal conveyor line, and at the same time, the threaded sleeves 5 are fitted with the bottom surface of the coal conveyor belt body 6 on the coal conveyor line. In order to prevent the problem of poor deflection correction results due to the relative sliding between the sleeve 5 and the carrier roller body 4, both sides of the carrier roller body 4 are provided with anti-slip grooves 10, and both sides of the threaded sleeves 5 are provided with anti-slip parts 11 that fit the anti-slip grooves 10. The anti-slip parts 11 on the threaded sleeves 5 on both sides are fitted into the anti-slip grooves 10 on the opposing carrier roller body 4. Due to the arrangement of the anti-slip parts 11 and the anti-slip grooves 10, the connection between the threaded sleeves 5 and the corresponding carrier roller body 4 is tighter, no relative sliding occurs, and the deflection correction effect is excellent.

[0018] A deflection compensation motor 7 is connected to each end of the carrier roller body 4 away from the threaded sleeve 5, and the main shaft end of the deflection compensation motor 7 is fixedly connected to the corresponding carrier roller body 4. The deflection compensation motor 7 is used to rotate the carrier roller body 4, and the deflection compensation motor 7 rotates the carrier roller body 4, and further rotates the threaded sleeve 5. In this case, the threaded sleeve 5 can generate a lateral force to move the coal conveyor belt body 6 to the vicinity of the center of the coal conveyor belt body 6, so as to ensure the deflection compensation effect and at the same time improve the safety of the use of the deflection compensation motor 7. For this purpose, an overrunning clutch 12 is provided at the connection position between the carrier roller body 4 on both sides and the corresponding deflection correction motor 7. When the coal conveyor belt body 6 normally transports coal, the deviation correction motor 7 will not rotate due to the passive rotation of the carrier roller body 4, and the overrunning clutch 12 plays a role in ensuring the deflection correction motor 7; when the coal conveyor belt body 6 normally transports coal and the threaded sleeve 5 passively rotates, the threaded sleeves 5 on both sides generate a force in the opposite direction to the coal conveyor belt body 6, so that the passive rotation of the threaded sleeve 5 will not cause the deflection of the coal conveyor belt body.

[0019] An adjustment assembly 8 is provided on the top of both support frames 2, and a proximity switch 9 with a detection end facing the edge of the coal conveyor belt body 6 is connected to both adjustment assemblies 8 on both sides. The proximity switch 9 is used to detect the distance information between the edge of the coal conveyor belt body 6 and the proximity switch 9. In order to meet the needs of different coal conveyor belt bodies 6 in terms of size and position, the position of the proximity switch 9 can be adjusted by the adjustment assembly 8. The deflection correction device further includes a host computer, which is electrically connected to the deflection correction motor 7 and the proximity switch 9, respectively. In this embodiment, the host computer is an intelligent computer widely used in the prior art, and the host computer controls the working state of the deflection correction motor 7 according to the value of the distance information detected by the proximity switch 9.

[0020] The adjustment assembly 8 includes a guide block 81, which is provided on the top of the support frame 2, a slide groove 82 formed in the guide block 81, an adjustment frame 83 provided above the guide block 81, a slide portion 84 provided on the bottom of the adjustment frame 83 and slidably connected within the slide groove 82, the adjustment frame 83 being slidably connected to the guide block 81 via the slide portion 84, and a proximity switch 9 provided on the adjustment frame 83, which is adapted to detect the proximity by adjusting the position of the adjustment frame 83 in the guide block 81. The adjustment frame 83 is fitted with tightening bolts 85 which pass through the adjustment frame 83 and are screwed into it, and the bottom wall of the slide groove 82 is provided with threaded holes 86 which fit the tightening bolts 85. The threaded holes 86 are uniformly distributed along the sliding direction of the adjustment frame 83 in the groove wall at the bottom of the slide groove 82. The arrangement of the tightening bolts 85 and the threaded holes 86 allows the adjustment frame 83 to be fixed to the guide block 81 when the tightening bolts 85 are screwed into the threaded holes 86, thereby fixing the position of the proximity switch 9.

[0021] The working principle of the present invention is as follows: when the coal conveyor line works and the coal conveyor belt body 6 is deflected, the coal conveyor belt body 6 is close to the approach switch 9 of its deflection side, and the approach switches 9 on both sides detect the distance information between the coal conveyor belt body 6 and the approach switch 9, and upload the information to the upper computer, the upper computer judges which side the coal conveyor belt is deflected toward the approach switch 9 according to the distance information, and further controls the deflection compensation motor 7 of the corresponding side of the approach switch 9 to operate, the operation of the deflection compensation motor 7 makes the carrier roller body 4 rotate, and further makes the threaded sleeve 5 rotate, and the threaded sleeve 5 can generate a lateral force against the belt body of the coal conveyor belt, and further corrects the deflection of the belt body of the coal conveyor belt, and the upper computer judges that the position of the coal conveyor belt body 6 is normal according to the distance information detected by the approach switch 9, and in this case controls the operation of the deflection compensation motor 7 to stop.

[0022] In describing the present invention, as necessary for the description, the orientations or positional relationships indicated by terms such as "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "both ends," and the like are based on the orientations or positional relationships shown in the accompanying drawings and are used only to explain and simplify the description of the present invention, and do not indicate or imply that the devices or elements referred to have a particular orientation and must be constructed and operated in a particular direction, and therefore, they should not be construed as limitations on the present invention.

[0023] In the present invention, unless otherwise specified, the terms "attached", "disposed", "connected", "fixed", "rotatably connected", etc. should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrally formed, may be mechanically connected, or electrical connected, may be a direct connection, an indirect connection through an intermediary, may be an internal communication between two elements, or an interaction relationship between two elements, and unless otherwise specified, a person skilled in the art can understand the specific meaning of the above terms in the present invention according to a specific situation.

[0024] The above contents are only typical examples of the present invention, in addition to them, the present invention may have various other embodiments, and all technical solutions obtained by equivalent substitution or equivalent transformation are all included in the protection scope of the present invention. [Explanation of symbols]

[0025] Explanation of symbols 1. Mounting frame, 2. Support frame, 3. Bearing base, 4. Carrier roller body, 5. Threaded sleeve, 6. Coal conveyor belt body, 7. Deflection compensation motor, 8. Adjustment assembly, 81. Guide block, 82. Slide groove, 83. Adjustment frame, 84. Slide part, 85. Tightening bolt, 86. Screw hole, 9. Proximity switch, 10. Anti-slip groove, 11. Anti-slip part, 12. Overrunning clutch.

Claims

1. A deflection correction device for a coal conveyor belt, comprising: a mounting frame (1) connected to a coal conveyor line; and a support frame (2) symmetrically provided on the mounting frame (1); a bearing stand (3) is provided on both of the support frames (2), a carrier roller body (4) is connected to both of the bearing stands (3) and is provided to pass through the bearing stand (3), a threaded sleeve (5) having a cylindrical wall is fitted to both of the opposite ends of the carrier roller body (4), the threaded sleeve (5) contacts a bottom surface of a coal conveyor belt body (6) in the coal conveyor line, a deflection correction motor (7) is connected to both of the ends of the carrier roller body (4) on both sides that are away from the threaded sleeve (5), an adjustment assembly (8) is provided on the top of both of the support frames (2), and a proximity switch (9) having a detection end facing an edge of the coal conveyor belt body (6) is connected to both of the adjustment assemblies (8); The adjustment assembly (8) includes a guide block (81), the guide block (81) is mounted on the top of the support frame (2), a slide groove (82) is formed in the guide block (81), an adjustment frame (83) is mounted above the guide block (81), a slide part (84) is provided at the bottom of the adjustment frame (83) and is slidably connected within the slide groove (82), and a proximity switch (9) is mounted on the adjustment frame (83).

2. 2. The deflection correction device for a coal conveyor belt according to claim 1, characterized in that: both of the carrier roller bodies (4) on both sides are provided with anti-slip grooves (10), both of the threaded sleeves (5) on both sides are provided with anti-slip portions (11) that fit into the anti-slip grooves (10), and the anti-slip portions (11) of the threaded sleeves (5) on both sides are inserted into the anti-slip grooves (10) of the corresponding carrier roller bodies (4).

3. 2. The deflection correction device of claim 1, wherein an overrunning clutch (12) is provided at each connection position between the carrier roller body (4) on both sides and the corresponding deflection correction motor (7).

4. 2. The deflection correction device for a coal conveyor belt according to claim 1, characterized in that: a fastening bolt (85) is screwed into the adjustment frame (83) through the adjustment frame (83); a screw hole (86) that fits the fastening bolt (85) is drilled in the bottom groove wall of the slide groove (82); and the screw hole (86) is uniformly distributed along the sliding direction of the adjustment frame (83) on the bottom groove wall of the slide groove (82).

5. 2. The deflection correction device of claim 1, further comprising a host computer, the host computer being electrically connected to the deflection correction motor (7) and the proximity switch (9) respectively.

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