Coal mining belt conveyor

Abstract

The utility model discloses a coal mining belt conveyor, including movable base, the top of movable base is fixedly connected with support station, and the top of support station is installed with the mount of liftable adjustment, and the top of mount is connected with the conveying belt, and the top of mount is equidistantly fixedly connected with the support frame in conveying belt, and three cylinders are rotatably connected in the support frame, and the conveying belt is connected in three cylinders, and the middle part of mount is rotatably provided with the fixed frame through the bearing, and three belt adjustment cylinders are rotatably connected in the fixed frame, the utility model discloses beneficial effects: the utility model can use the mount to separate movable base, also can install mount on movable base, can adjust the height of conveying belt through hydraulic cylinder, adapts to the use under different height demand, can real -time automatic detection and correct the belt deviation, ensures that conveying belt is always in the middle position, guarantees the high -quality conveyance of coal.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically a coal mining belt conveyor. Background Technology

[0002] A belt conveyor mainly consists of two end rollers and a closed conveyor belt tightly fitted around them. The roller that drives the conveyor belt to rotate is called the drive roller, and the other roller that only changes the direction of the conveyor belt is called the idler roller. The drive roller is driven by an electric motor through a reducer. The conveyor belt is dragged by the friction between the drive roller and the conveyor belt. The drive roller is usually installed at the discharge end to increase the traction force and facilitate dragging. The material is fed in from the feeding end, falls on the rotating conveyor belt, and is transported to the discharge end for discharge by the friction of the conveyor belt.

[0003] In the complex underground working environment, belt conveyors have long faced numerous challenges. Due to factors such as uneven roadway floors, uneven load distribution, variations in belt tension, and wear on rollers and idlers, conveyor belts are highly prone to misalignment during operation. Belt misalignment not only leads to material spillage, coal loss, and environmental pollution, but also exacerbates friction between the belt edge and the frame, causing premature tearing, wear, and even serious accidents such as belt breakage.

[0004] Traditional belt misalignment prevention measures usually rely on regular manual inspections and adjustments. Operators need to observe the belt's running rollers based on experience and then manually adjust them for correction. This method has obvious lag, cannot achieve real-time response, and is highly dependent on the experience and sense of responsibility of the workers. In addition, the structure of traditional coal mining belt conveyors is fixed, making it inconvenient to adjust the height of the conveyor belt or move it. Therefore, we propose a coal mining belt conveyor. Utility Model Content

[0005] The purpose of this utility model is to provide a coal mining belt conveyor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal mining belt conveyor, comprising a movable base, a support platform fixedly connected to the top of the movable base, and an adjustable mounting frame installed on the top of the support platform. A conveyor belt is connected to the top of the mounting frame. Support frames are equidistantly fixed to the top of the mounting frame within the conveyor belt, and three rollers are rotatably connected within the support frames. The conveyor belt is connected in cooperation with the three rollers. A fixed frame is rotatably connected to the middle of the mounting frame via a bearing, and three belt alignment cylinders are rotatably connected within the fixed frame. Mounting rods are symmetrically fixed to the top of the mounting frame outside the fixed frame, and a belt alignment detector is installed on one side of the mounting rods located on the conveyor belt.

[0007] Preferably, a rotating shaft is fixedly connected to the center of the bottom of the fixing frame, and the rotating shaft is rotatably connected to the top of the mounting frame via a bearing. A worm gear is fixedly connected to the bottom of the rotating shaft at the bottom of the fixing frame through the mounting frame. Fixing plates are symmetrically fixed inside the mounting frame, and a worm is rotatably connected between the two fixing plates. The worm and the worm gear are meshed together. A fixing rod is rotatably connected between the fixing plate and the inner wall of the mounting frame. The end of the worm passes through the fixing plate and is fixedly connected to the fixing rod. A drive motor is fixedly installed on the side wall of the mounting frame, and the end of the output shaft of the drive motor extends into the mounting frame and is fixedly connected to the fixing rod. A controller is fixedly installed on the side wall of the mounting frame outside the drive motor, and the controller is electrically connected to the drive motor.

[0008] Preferably, a speed measuring instrument is installed at the end of the drive roller at one end of the conveyor belt, and the controller is electrically connected to the speed measuring instrument.

[0009] Preferably, the bottom of the mounting frame is fixedly connected to a stabilizing frame at equal intervals, the top of the support platform is provided with a fixing groove at equal intervals, the stabilizing frame is fitted inside the fixing groove, the top of the movable base is symmetrically mounted with hydraulic cylinders outside the support platform, and the piston rod end of the hydraulic cylinder is fixedly connected to a mounting plate, the top of the mounting plate is mounted with a damping telescopic rod, and the end of the damping telescopic rod is fixedly connected to a support plate, and the two support plates are respectively fixedly connected to the bottom ends of the mounting frame by bolts.

[0010] Preferably, storage drawers are provided at equal intervals on both sides of the support platform.

[0011] Preferably, the outer side of the belt adjusting cylinder is provided with a rubber layer.

[0012] Preferably, a vertical pole is fixed to the end of the mounting bracket, and a belt thickness sensor is installed inside the vertical pole, with the monitoring probe of the belt thickness sensor facing the belt.

[0013] Preferably, lifting rings are symmetrically provided at both ends of the top of the mounting frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model monitors the conveyor belt offset signal by installing a belt alignment detector on the mounting frame. After receiving the signal, the controller controls the drive motor to work, which drives the fixed frame to rotate through the fixed rod, worm gear and worm wheel transmission, so that the belt alignment cylinder pulls the conveyor belt back to the center. It can automatically detect and correct belt offset in real time, ensuring that the conveyor belt is always in the center position, ensuring high-quality coal transportation, reducing material spillage and equipment wear caused by belt offset, and improving the stability and reliability of the conveying system.

[0016] 2. This utility model allows the mounting bracket to be used detached from the movable base, in which case the device height is fixed. Alternatively, the mounting bracket can be installed on the movable base, and the height of the conveyor belt can be adjusted by a hydraulic cylinder to adapt to different height requirements. The movable base facilitates the movement of the conveyor belt. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the fixing frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the support platform structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of the belt thickness sensor of this utility model.

[0021] In the diagram: 1. Movable base; 2. Support platform; 3. Mounting frame; 4. Hydraulic cylinder; 5. Mounting plate; 6. Damping telescopic rod; 7. Support plate; 8. Storage drawer; 9. Conveyor belt; 10. Speed ​​measuring instrument; 11. Support frame; 12. Roller; 13. Mounting rod; 14. Belt alignment detector; 15. Belt straightening cylinder; 16. Fixing frame; 17. Controller; 18. Drive motor; 19. Fixing plate; 20. Worm gear; 21. Fixing rod; 22. Worm wheel; 23. Belt thickness sensor; 24. Lifting ring; 25. Stabilizing frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 This utility model provides a technical solution: a coal mining belt conveyor, including a movable base 1, a support platform 2 fixedly connected to the top of the movable base 1, and an adjustable mounting frame 3 installed on the top of the support platform 2. A conveyor belt 9 is connected to the top of the mounting frame 3, and a support frame 11 is fixedly connected at equal intervals inside the conveyor belt 9 on the top of the mounting frame 3. Three rollers 12 are rotatably connected inside the support frame 11, and the conveyor belt 9 is connected in cooperation to the three rollers 12.

[0024] The mounting frame 3 has a fixed frame 16 that rotates through a bearing in the middle, and three belt alignment cylinders 15 are rotatably connected inside the fixed frame 16. The top of the mounting frame 3 is symmetrically fixed to the outside of the fixed frame 16, and a belt alignment detector 14 is installed on one side of the conveyor belt 9 on the mounting rod 13.

[0025] It should be noted that the three rollers 12 are fitted together inside the fixed frame 16, which is an inverted isosceles trapezoidal structure. Two rollers 12 are symmetrically arranged on the corresponding two inner walls of the fixed frame 16, and the other roller 12 is rotatably connected to the middle of the fixed frame 16. The conveyor belt 9 is located inside the three rollers 12. When conveying coal, the gravity of the coal causes the middle area of ​​the conveyor belt 9 to contact the roller 12 in the middle of the fixed frame 16. With the support of the rollers 12 at both ends inside the fixed frame 16, the height of the two edges of the belt is relatively high. This supports and coordinates the movement of the conveyor belt 9 while preventing coal from falling from the two edges of the conveyor belt 9.

[0026] Please see Figure 2 A rotating shaft is fixedly connected to the bottom center of the fixed frame 16, and the rotating shaft is rotatably connected to the top of the mounting frame 3 through a bearing. The bottom of the rotating shaft at the bottom of the fixed frame 16 passes through the mounting frame 3 and is fixedly connected to a worm gear 22. Fixed plates 19 are symmetrically fixed inside the mounting frame 3, and a worm 20 is rotatably connected between the two fixed plates 19. The worm 20 and the worm gear 22 are meshed together. A fixed rod 21 is rotatably connected between the fixed plates 19 and the inner wall of the mounting frame 3. The end of the worm 20 passes through the fixed plates 19 and is fixedly connected to the fixed rod 21. A drive motor 18 is fixedly installed on the side wall of the mounting frame 3, and the end of the output shaft of the drive motor 18 extends into the mounting frame 3 and is fixedly connected to the fixed rod 21. A controller 17 is fixedly installed on the side wall of the mounting frame 3 outside the drive motor 18, and the controller 17 is electrically connected to the drive motor 18.

[0027] It should be noted that the operation of the drive motor 18 can drive the fixed rod 21 to rotate, which in turn drives the worm 20 to rotate. The meshing connection between the worm 20 and the worm wheel 22 can drive the fixed frame 16 to rotate. When the fixed frame 16 rotates to a certain extent, the conveyor belt 9 can be adjusted under the action of the three belt adjusting cylinders 15 to ensure that the conveyor belt 9 is always in the center position and to ensure high-quality coal transportation.

[0028] Please see Figure 1 A speed measuring instrument 10 is installed at the end of the drive roller of one end of the conveyor belt 9, and the controller 17 is electrically connected to the speed measuring instrument 10.

[0029] It should be noted that when this utility model is used, the multiple stabilizing frames 25 at the bottom of the mounting frame 3 can be used for support. The multiple stabilizing frames 25 can be stably supported on the ground. When the height needs to be adjusted or the device needs to be moved, the mounting frame 3 can be hoisted by the equipment so that the stabilizing frames 25 at the bottom of the mounting frame 3 correspond to the fixing grooves on the support platform 2. Then, the support plate 7 is fixed to the mounting frame 3 by bolts. The lifting and lowering of the mounting frame 3 can be controlled by the hydraulic cylinder 4 so that the height of the conveyor belt 9 can be adjusted to the required height position.

[0030] The conveying speed of the conveyor belt 9 can be measured by the speed measuring instrument 10. When the conveyor belt 9 is misaligned during the conveying process, the belt alignment detector 14 detects the signal and transmits the signal to the controller 17. The controller 17 then controls the drive motor 18 to work, which drives the fixed rod 21 to rotate. The rotation of the fixed rod 21 drives the worm gear 20 to rotate. Through the meshing connection between the worm gear 20 and the worm wheel 22, the fixed frame 16 is driven to rotate, so that the three belt alignment cylinders 15 pull the conveyor belt 9 to a certain extent, so that the conveyor belt 9 is in the center position, thereby achieving high-quality conveying of coal.

[0031] The thickness of the conveyor belt 9 can be monitored by the belt thickness sensor 23. When the thickness of the conveyor belt 9 is less than the set minimum thickness value, the belt thickness sensor 23 detects the signal and transmits the signal to the controller 17. The controller 17 then reminds the user through the alarm installed on the control device, indicating that the conveyor belt 9 is excessively worn.

[0032] Please see Figure 1 and Figure 3 The bottom of the mounting frame 3 is fixedly connected with a stabilizing frame 25 at equal intervals. The top of the support platform 2 is provided with a fixing groove at equal intervals. The stabilizing frame 25 is connected to the inside of the fixing groove. The top of the movable base 1 is symmetrically installed with hydraulic cylinders 4 outside the support platform 2. The piston rod end of the hydraulic cylinder 4 is fixedly connected with a mounting plate 5. The top of the mounting plate 5 is installed with a damping telescopic rod 6. The end of the damping telescopic rod 6 is fixedly connected with a support plate 7. The two support plates 7 are respectively fixed to the bottom ends of the mounting frame 3 by bolts.

[0033] It should be noted that when the height needs to be adjusted or the device needs to be moved, the mounting frame 3 can be hoisted by the equipment so that the stabilizing frame 25 at the bottom of the mounting frame 3 corresponds to the fixing groove on the support platform 2. Then, the support plate 7 is fixed to the mounting frame 3 by bolts. The lifting and lowering of the mounting frame 3 can be controlled by the hydraulic cylinder 4 so that the height of the conveyor belt 9 can be adjusted to the required height position.

[0034] Please see Figure 3 Storage drawers 8 are provided at equal intervals on both sides of the support platform 2.

[0035] It should be noted that storage drawer 8 can be used to store a variety of spare items.

[0036] Please see Figure 1 A rubber layer is provided on the outer side of the belt adjusting cylinder 15.

[0037] It should be noted that the rubber layer on the outside of the belt straightening cylinder 15 can increase the friction between it and the conveyor belt 9, so that it can better straighten the conveyor belt 9. During the conveying process of the conveyor belt 9, the belt straightening cylinder 15 can also support the conveyor belt 9. The belt straightening cylinder 15 is rotatably connected in the fixed frame 16 and can rotate with the movement of the conveyor belt 9.

[0038] Please see Figure 4 A vertical pole is fixed to the end of the mounting bracket 3, and a belt thickness sensor 23 is installed inside the vertical pole. The monitoring probe of the belt thickness sensor 23 is set facing the belt.

[0039] It should be noted that the thickness of the conveyor belt 9 can be monitored by the belt thickness sensor 23. When the thickness of the conveyor belt 9 is less than the set minimum thickness value, the belt thickness sensor 23 detects the signal and transmits the signal to the controller 17. The controller 17 then reminds the user through the alarm installed on the control device, indicating that the conveyor belt 9 is excessively worn.

[0040] Lifting rings 24 are symmetrically arranged at both ends of the top of the mounting bracket 3.

[0041] It should be noted that the lifting ring 24 facilitates the lifting of the mounting frame 3 by the equipment.

[0042] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor for coal mining, characterized in that, The device includes a movable base (1), a support platform (2) fixedly connected to the top of the movable base (1), and an adjustable mounting frame (3) installed on the top of the support platform (2). A conveyor belt (9) is connected to the top of the mounting frame (3). A support frame (11) is fixedly connected at equal intervals inside the conveyor belt (9) on the top of the mounting frame (3). Three rollers (12) are rotatably connected inside the support frame (11). The conveyor belt (9) is connected in cooperation to the three rollers (12). A fixed frame (16) is rotatably connected to the middle of the mounting frame (3) via a bearing. Three belt alignment cylinders (15) are rotatably connected inside the fixed frame (16). Mounting rods (13) are symmetrically fixed to the top of the mounting frame (3) outside the fixed frame (16). A belt alignment detector (14) is installed on one side of the conveyor belt (9) on the mounting rods (13).

2. The coal mining belt conveyor according to claim 1, characterized in that: A rotating shaft is fixedly connected to the bottom center of the fixed frame (16), and the rotating shaft is rotatably connected to the top of the mounting frame (3) through a bearing. The bottom of the rotating shaft at the bottom of the fixed frame (16) passes through the mounting frame (3) and is fixedly connected to a worm gear (22). Fixed plates (19) are symmetrically fixed inside the mounting frame (3), and a worm (20) is rotatably connected between the two fixed plates (19). The worm (20) and the worm gear (22) are meshed together. The fixed plates (19) and the mounting frame (3) are rotatably connected to each other. A fixed rod (21) is rotatably connected between the walls. The end of the worm gear (20) passes through the fixed plate (19) and is fixedly connected to the fixed rod (21). A drive motor (18) is fixedly installed on the side wall of the mounting frame (3), and the end of the output shaft of the drive motor (18) extends into the mounting frame (3) and is fixedly connected to the fixed rod (21). A controller (17) is fixedly installed on the side wall of the mounting frame (3) outside the drive motor (18), and the controller (17) is electrically connected to the drive motor (18).

3. A coal mining belt conveyor according to claim 2, characterized in that: A speed measuring instrument (10) is installed at the end of the drive roller of one end of the conveyor belt (9), and the controller (17) is electrically connected to the speed measuring instrument (10).

4. A coal mining belt conveyor according to claim 1, characterized in that: The bottom of the mounting frame (3) is fixedly connected with a stabilizing frame (25) at equal intervals. The top of the support platform (2) is provided with a fixing groove at equal intervals. The stabilizing frame (25) is connected to the inside of the fixing groove. The top of the movable base (1) is symmetrically installed with hydraulic cylinders (4) outside the support platform (2). The piston rod end of the hydraulic cylinder (4) is fixedly connected with a mounting plate (5). The top of the mounting plate (5) is installed with a damping telescopic rod (6). The end of the damping telescopic rod (6) is fixedly connected with a support plate (7). The two support plates (7) are respectively fixed to the bottom ends of the mounting frame (3) by bolts.

5. A coal mining belt conveyor as claimed in claim 1, characterised in that: Storage drawers (8) are provided at equal intervals on both sides of the support platform (2).

6. A coal mining belt conveyor according to claim 1, characterized in that: The outer side of the belt adjusting cylinder (15) is provided with a rubber layer.

7. A coal mining belt conveyor according to claim 1, characterized in that: The mounting bracket (3) has a vertical pole fixed to its end, and a belt thickness sensor (23) is installed inside the vertical pole. The monitoring probe of the belt thickness sensor (23) is set facing the belt.

8. A coal mining belt conveyor according to claim 1, characterized in that: The mounting bracket (3) has symmetrical lifting rings (24) at both ends of its top.

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