A belt conveyor for mining

Abstract

A mining belt conveyor belongs to the technical field of coal mine transportation equipment, including a longitudinal beam, a support frame, a cross beam, a fixed component, a correction component and a roller component. The longitudinal beams are provided with two groups, and the support frames are arranged on the outer side walls of the longitudinal beams in pairs, the cross beams are connected and arranged on the two groups of longitudinal beams, the fixed components are arranged on the two groups of longitudinal beams relatively, the correction component is connected and arranged on the fixed component, and the roller assembly is arranged on the cross beam. The correction component includes a support rod, a rotating rod, a support cylinder, a main correction roller, a connecting plate, a rotating seat and a correction drive. The support rod is arranged on the fixed assembly, the rotating rod movably penetrates the support rod arrangement, the support cylinder is fixed on the rotating rod, the main correction roller is rotatably arranged on the outer wall of the support cylinder, one end of the connecting plate is fixed on the support cylinder, the rotating seat is fixed on the other end of the connecting plate, and the correction drive is symmetrically arranged on the rotating seat, which can reduce the occurrence of belt deviation and correct the belt deviation in time.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine transportation equipment, in particular to a belt transportation device for mines. Background Art

[0002] Conveyor belts are common transport equipment in coal mines. In practice, they often experience malfunctions due to various reasons, such as material impact and component anomalies, impacting the entire production process and even causing safety accidents. The most common problem is belt deviation. This can cause material spillage and severe belt wear, impacting normal production. In more serious cases, the belt can rub against the frame, softening or even burning the belt, leading to fires and casualties.

[0003] At present, the correction of deviation of mining belt conveyors is carried out by patrol personnel adjusting the tension between the conveyor roller and the belt for debugging. The debugging process is cumbersome and takes a long time. The slippery and dangerous underground environment and heavy dust bring many risks to the patrol personnel. The second method is to correct the deviation through sensors and control systems. The coal dust generated by air disturbance during coal transportation in coal mines can easily cause sensor and control system failures, and the use and maintenance costs are high. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a mining belt conveyor device, which at least partially solves the problems raised in the above background technology.

[0005] The technical solution adopted by the present invention is as follows: a mining belt conveyor, including a longitudinal beam, a support frame, a cross beam, a fixing assembly, a correction assembly and a roller assembly, the longitudinal beams are provided with two groups, the support frames are arranged in pairs on the outer side walls of the longitudinal beams, the cross beams are provided with several groups, the cross beams are connected and arranged on the two groups of longitudinal beams, the fixing assembly is provided with two groups, the two groups of fixing assemblies are arranged on the two groups of longitudinal beams opposite to each other, the correction assembly is connected and arranged on the two groups of fixing assemblies, and the roller assembly is arranged on the cross beam.

[0006] Furthermore, the correction assembly includes a support rod, a rotating rod, a support cylinder, a main correction roller, a connecting plate, a rotating seat and a correction drive component, both ends of the support rod are arranged on the fixed assembly, the rotating rod movably passes through the support rod, the support cylinder is fixed on the rotating rod, and the rotating rod is arranged on the inner wall of the support cylinder, the main correction roller is rotatably arranged on the outer wall of the support cylinder, one end of the connecting plate is fixed on the support cylinder and the connecting plate is arranged near the end of the support cylinder, the rotating seat is fixed on the other end of the connecting plate, the rotating seat and the support rod are arranged in a horizontal position and parallel, and the correction drive component is provided with two groups, and the two groups of the correction drive components are symmetrically arranged on the rotating seat.

[0007] Further, the deviation rectifying driving member includes a column, a fixed frame, a rotating shaft, a vertical roller, a lower swing rod, a movable connecting rod, a swing rod and a fixed sleeve. The column is fixedly arranged at the end of the rotating seat. The fixed frame is arranged on the side wall of the column and close to the upper end of the column. The fixed frame is arranged on the side away from the support rod. The lower swing rod movably penetrates through the fixed frame. The rotating shaft movably penetrates through the lower swing rod. One end of the rotating shaft is fixedly arranged on the column, and the other end of the rotating shaft is fixedly arranged on the fixed frame. The vertical roller is arranged at the upper end of the lower swing rod. The fixed sleeve is fixedly arranged on the support rod. A U-shaped plate is arranged on the side wall of the fixed sleeve. The U-shaped plate is arranged on the side close to the rotating seat. A wire hole is formed in the side wall of the rotating seat. The wire hole is close to the lower swing rod. The wire hole and the U-shaped plate are arranged on the same horizontal line. One end of the swing rod is movably arranged on the U-shaped plate, and the other end of the swing rod movably penetrates through the wire hole close to the swing rod. One end of the movable connecting rod is arranged at the lower end of the swing rod, and the other end of the movable connecting rod is arranged on the swing rod.

[0008] Further, the fixing component includes a U-shaped screw rod and a support plate. The U-shaped screw rod is fixedly arranged on the longitudinal beam through a bolt. The support plate is fixedly arranged on the U-shaped screw rod. A placement groove is formed in the upper wall of the support plate. The placement groove is U-shaped. Both ends of the support rod are clamped in the placement groove.

[0009] Further, stepped grooves are arranged at both ends of the support rod, and the sizes of the stepped grooves are matched with those of the placement grooves.

[0010] Further, the idler roller component includes an intermediate frame plate, a short frame plate, a long frame plate, an upper idler roller and a side idler roller. There are two groups of intermediate frame plates, and the two groups of intermediate frame plates are fixedly arranged on the cross beam and close to the middle of the cross beam. Both ends of the upper idler roller are movably arranged on the intermediate frame plate. The short frame plate is fixedly arranged on the cross beam. The short frame plates are symmetrically arranged outside the intermediate frame plates and close to the intermediate frame plates. The long frame plate is fixedly arranged on the cross beam. The long frame plates are symmetrically arranged outside the short frame plates and close to the ends of the cross beam. One end of the side idler roller is movably arranged on the short frame plate, and the other end of the side idler roller is movably arranged on the long frame plate.

[0011] In a further embodiment, limiting sleeves are symmetrically arranged on the support rod, and the limiting sleeves are close to the stepped grooves.

[0012] In a further embodiment, a return roller is movably connected to the support frame, and the return roller is close to the middle of the support frame.

[0013] In a further embodiment, the main deviation rectifying roller is arranged in a drum shape with a higher middle and lower sides at both ends.

[0014] In a further embodiment, a waist-shaped hole is provided on the side wall of the support tube, the height of the waist-shaped hole is greater than the diameter of the support rod, and the support rod is movable through the waist-shaped hole.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] When the conveyor belt deviates, the conveyor belt comes into contact with the vertical roller. The vertical roller drives the column to deviate through the rotating shaft and the fixed frame. The column drives the rotating seat to deviate, thereby driving the main correction roller to deflect in the direction of the conveyor belt deviation to correct the conveyor belt, realizing self-correction of the conveyor belt, reducing the need for inspection personnel to adjust the conveyor roller, and reducing the risks brought to inspection personnel by the slippery and dangerous underground environment and heavy dust.

[0017] When the main correction roller completes the deviation correction of the conveyor belt, the lower swing arm is reset under the action of gravity, and the swing arm pulls the lower swing arm and the vertical roller to reset through the movable connecting rod. The lower swing arm drives the column and the rotating seat to reset through the rotating shaft and the fixed frame, so as to facilitate the next deviation correction of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a mining belt conveyor device proposed in an embodiment of the present invention;

[0019] Figure 2 A top view of a mining belt conveyor device according to an embodiment of the present invention;

[0020] Figure 3 This is a front view of a mining belt conveyor device according to an embodiment of the present invention;

[0021] Figure 4 This is a right side view of the mining belt conveyor provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the fixing component and the correcting component proposed in an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of a portion of the structure of a correction component proposed in an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the internal structure of the main deviation-correcting roller proposed in an embodiment of the present invention;

[0025] Figure 8 This is a schematic structural diagram of the roller assembly proposed in an embodiment of the present invention.

[0026] Among them, 1. longitudinal beam, 2. support frame, 3. cross beam, 4. fixing component, 5. deviation rectifying component, 6. idler assembly, 7. support rod, 8. rotating rod, 9. support cylinder, 10. main deviation rectifying roller, 11. connecting plate, 12. rotating seat, 13. deviation rectifying driving part, 14. column, 15. fixing frame, 16. rotating shaft, 17. vertical roller, 18. lower swing rod, 19. movable connecting rod, 20. swing rod, 21. fixing sleeve, 22. C-shaped plate, 23. wire hole, 24. U-shaped screw rod, 25. support plate, 26. placing groove, 27. stepped groove, 28. intermediate frame plate, 29. short frame plate, 30. long frame plate, 31. upper idler, 32. side idler, 33. limiting sleeve, 34. return roller, 35. waist-shaped hole.

[0027] The attached drawings are used to provide a further understanding of the embodiments and constitute a part of the specification. They are used to explain together with the embodiments of the present invention and do not constitute a limitation to the embodiments. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments with reference to the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments without creative work belong to the scope of protection.

[0029] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the attached drawings. It is only for the convenience of describing the embodiments and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments.

[0030] One way to correct the deviation of the belt of the mine belt conveyor is to debug by adjusting the tension between the conveying roller and the belt by the inspection personnel. Since the debugging process is cumbersome and the debugging time is long, the wet and slippery underground environment and heavy dust bring many risks to the inspection personnel. The other way is to achieve deviation rectification through sensors and control systems. The coal ash generated by air disturbance during the coal mine conveying process is likely to cause failures of the sensors and control systems, and the use cost is high.

[0031] After recognizing the above problems, the present application proposes and discloses a mine belt transportation device, which has a simple structure and low cost, can reduce the occurrence of belt deviation, and can correct it in time when the belt deviates.

[0032] Referring to the attached drawings, as Figure 1 , Figure 2 , Figure 3and Figure 4 As shown, the embodiment of the present disclosure provides a mining belt conveyor, including a longitudinal beam 1, a support frame 2, a cross beam 3, a fixing assembly 4, a correction assembly 5 and a roller assembly 6. The longitudinal beam 1 is provided with two groups, and the support frames 2 are arranged on the outer side wall of the longitudinal beam 1 in pairs. The cross beam 3 is provided with several groups, and the cross beam 3 is connected to the two groups of longitudinal beams 1. There are two groups of fixing assemblies 4, and the two groups of fixing assemblies 4 are arranged on the two groups of longitudinal beams 1 in opposite relation. The correction assembly 5 is connected to the two groups of fixing assemblies 4, and the roller assembly 6 is provided on the cross beam 3.

[0033] In this embodiment, the support frame 2 fixes and supports the longitudinal beam 1 , the longitudinal beam 1 supports the deviation-correcting assembly 5 , and the cross beam 3 supports the roller assembly 6 .

[0034] like Figure 5 、 Figure 6 and Figure 7 As shown, the correction component 5 includes a support rod 7, a rotating rod 8, a support cylinder 9, a main correction roller 10, a connecting plate 11, a rotating seat 12 and a correction drive 13. Both ends of the support rod 7 are arranged on the fixed component 4, the rotating rod 8 movably passes through the support rod 7, the support cylinder 9 is fixed on the rotating rod 8, and the rotating rod 8 is arranged on the inner wall of the support cylinder 9, the main correction roller 10 is rotatably arranged on the outer wall of the support cylinder 9, one end of the connecting plate 11 is fixed on the support cylinder 9 and the connecting plate 11 is arranged close to the end of the support cylinder 9, the rotating seat 12 is fixed at the other end of the connecting plate 11, and the rotating seat 12 is arranged in parallel with the support rod 7 in a horizontal position. There are two groups of correction drive members 13, and the two groups of correction drive members 13 are symmetrically arranged on the rotating seat 12.

[0035] In this embodiment, the conveyor belt is transmitted on the main correcting roller 10. When the conveyor belt deviates, the conveyor belt contacts the correcting drive 13. After the correcting drive 13 is subjected to force, it drives the rotating seat 12 to deviate. The rotating seat 12 drives the main correcting roller 10 to deflect in the direction of the conveyor belt deviation through the connecting plate 11. Since the center line of the main correcting roller 10 is not parallel to the conveyor belt, the tightness on both sides of the conveyor belt is also different. According to the deviation law of "loosening but not tightening" in production practice, the conveyor belt is corrected and restored to the center line of the main correcting roller 10, thereby away from the correcting drive 13, realizing self-correction of the conveyor belt, reducing the inspection personnel's adjustment of the conveyor roller, and reducing the risks brought to the inspection personnel by the slippery and dangerous underground environment and heavy dust.

[0036] like Figure 4As shown in the figure, the deviation correction driving member 13 includes a column 14, a fixed frame 15, a rotating shaft 16, a vertical roller 17, a lower swing rod 18, a movable connecting rod 19, a swing rod 20 and a fixed sleeve 21. The column 14 is fixedly arranged at the end of the rotating seat 12. The fixed frame 15 is arranged on the side wall of the column 14 and close to the upper end of the column 14. The fixed frame 15 is arranged on the side away from the support rod 7. The lower swing rod 18 movably penetrates through the fixed frame 15. The rotating shaft 16 movably penetrates through the lower swing rod 18. One end of the rotating shaft 16 is fixedly arranged on the column 14, and the other end of the rotating shaft 16 is fixedly arranged on the fixed frame 15. The vertical roller 17 is arranged at the upper end of the lower swing rod 18. The fixed sleeve 21 is fixedly arranged on the support rod 7. A U-shaped plate 22 is arranged on the side wall of the fixed sleeve 21. The U-shaped plate 22 is arranged on the side close to the rotating seat 12. A wire hole 23 is formed on the side wall of the rotating seat 12. The wire hole 23 is close to the lower swing rod 18. The wire hole 23 and the U-shaped plate 22 are arranged on the same horizontal line. One end of the swing rod 20 is movably arranged on the U-shaped plate 22, and the other end of the swing rod 20 movably penetrates through the wire hole 23 close to the swing rod 20. One end of the movable connecting rod 19 is arranged at the lower end of the swing rod 20, and the other end of the movable connecting rod 19 is arranged on the swing rod 20. [[ID=…]] [[ID=…]]

[0037] In this embodiment, when the conveyor belt is deflected, the conveyor belt contacts the vertical roller 17. The vertical roller 17 drives the column 14 to deflect through the rotating shaft 16 and the fixed frame 15. The column 14 drives the rotating seat 12 to deflect, so as to drive the main deviation correction roller 10 to deflect in the direction of the conveyor belt deflection to correct the conveyor belt. The wire hole 23 is used to limit the swing amplitude of the swing rod 20. The swing rod 20 pulls the lower swing rod 18 through the movable connecting rod 19 to limit the deflection amplitude of the vertical roller 17, preventing the vertical roller 17 from having too large deflection amplitude and unable to play a correct deviation correction role. [[ID=…]] [[ID=…]]

[0038] In this embodiment, when the main deviation correction roller 10 completes the deviation correction of the conveyor belt, the lower swing rod 18 resets under the action of gravity. The swing rod 20 pulls the lower swing rod & the vertical roller 17 to reset through the movable connecting rod 19. The lower swing rod 18 drives the column 14 and the rotating seat 12 to reset through the rotating shaft 16 and the fixed frame 15, so as to facilitate the next deviation correction of the conveyor belt. [[ID=…]] [[ID=…]]

[0039] As [[ID=…]] Figure 1 and [[ID=…]] Figure 5 shown, the fixing component 4 includes a U-shaped screw 24 and a support plate 25. The U-shaped screw 24 is fixedly arranged on the longitudinal beam 1 through bolts. The support plate 25 is fixedly arranged on the U-shaped screw 24. A placement groove 26 is formed on the upper wall of the support plate 25. The placement groove 26 is arranged in a U shape. Both ends of the support rod 7 are clamped in the placement groove 26. [[ID=…]] [[ID=…]]

[0040] As [[ID=…]] Figure 5 and [[ID=…]] Figure 6 shown, stepped grooves 27 are provided at both ends of the support rod 7. The stepped grooves 27 are matched with the placement groove 26 in size. [[ID=…]]

[0041] In this embodiment, the support rod 7 is clamped in the placement groove 26 through the stepped groove 27 , thereby preventing the support rod 7 from rotating in the placement groove 26 .

[0042] like Figure 8 As shown, the roller assembly 6 includes an intermediate frame plate 28, a short frame plate 29, a long frame plate 30, an upper roller 31 and a side roller 32. The intermediate frame plate 28 is provided with two groups. The two groups of intermediate frame plates 28 are fixed on the beam 3 and arranged near the middle of the beam 3. Both ends of the upper roller 31 are movably arranged on the intermediate frame plate 28. The short frame plate 29 is fixed on the beam 3. The short frame plate 29 is symmetrically arranged on the outside of the intermediate frame plate 28 and arranged near the intermediate frame plate 28. The long frame plate 30 is fixed on the beam 3. The long frame plate 30 is symmetrically arranged on the outside of the short frame plate 29 and arranged near the end of the beam 3. One end of the side roller 32 is movably arranged on the short frame plate 29, and the other end of the side roller 32 is movably arranged on the long frame plate 30.

[0043] In this embodiment, the upper roller 31 and the side roller 32 jointly support the transport belt. At the same time, the upper roller 31 and the side roller 32 form a concave supporting surface, which can effectively reduce the occurrence of the transport belt deviation, increase the stability of the belt transportation, and enhance the safety of the coal mine transportation line.

[0044] like Figure 5 and Figure 6 As shown, a limiting sleeve 33 is symmetrically provided on the support rod 7 , and the limiting sleeve 33 is arranged close to the stepped groove 27 .

[0045] In this embodiment, the limiting sleeve 33 can prevent the support rod 7 from sliding on the fixing assembly 4, thereby preventing the support rod 7 from deflecting or falling off.

[0046] like Figure 1 、 Figure 2 and Figure 4 As shown, a return roller 34 is movably connected to the support frame 2, and the return roller 34 is arranged near the middle of the support frame 2 for returning the conveyor belt.

[0047] like Figure 5 、 Figure 6 and Figure 7 As shown, the main deviation-correcting roller 10 is arranged in a drum shape with a high middle and low sides.

[0048] In this embodiment, when the conveyor belt passes through the drum-shaped main correcting roller 10, the two sides of the main correcting roller 10 generate component forces f1 and f2 in different directions due to the change in diameter. f1 generates a reaction force of the same expected direction and magnitude due to the friction between the conveyor belt and the main correcting roller 10. When the conveyor belt is operating normally, the reaction forces on both sides are equal, thereby maintaining the normal operation of the conveyor belt. When the conveyor belt deviates to one side, the conveyor belt on the deviated side is significantly subjected to greater tension due to the change in the diameter of the main correcting roller 10, forming a "tight edge". The reaction force on the deviated side is greater than that on the other side, pushing the conveyor belt to move to the other side until the forces on both sides reach a balanced state, which also serves the purpose of adjusting the deviation of the conveyor belt and enhancing the correction effect of the correction component 5.

[0049] like Figure 1 and Figure 5 As shown, a waist-shaped hole 35 is opened on the side wall of the support tube 9. The height of the waist-shaped hole 35 is greater than the diameter of the support rod 7. The support rod 7 is movable through the waist-shaped hole 35.

[0050] In this embodiment, when the support tube 9 drives the main deviation-correcting roller 10 to deflect horizontally around the rotating rod 8, the position of the support rod 7 in the waist-shaped hole 35 changes relatively. The waist-shaped hole 35 can limit the deflection position of the support tube 9 from being too large through the support rod 7.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0052] Although embodiments have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the embodiments is defined by the appended claims and their equivalents.

[0053] The above description of the embodiment is non-limiting. The drawings show only one embodiment, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the invention, designs a similar structure and embodiment without inventiveness, they shall fall within the scope of protection.

Claims

1. A mining belt conveyor, characterized in that: The invention comprises a longitudinal beam (1), a support frame (2), a cross beam (3), a fixing assembly (4), a deviation correction assembly (5) and a roller assembly (6), wherein the longitudinal beam (1) is provided with two groups, the support frames (2) are arranged on the outer side wall of the longitudinal beam (1) in pairs, the cross beam (3) is provided with a plurality of groups, the cross beam (3) is connected to the two groups of longitudinal beams (1), the fixing assembly (4) is provided with two groups, the two groups of fixing assemblies (4) are arranged on the two groups of longitudinal beams (1) in pairs, the deviation correction assembly (5) is connected to the two groups of fixing assemblies (4), and the roller assembly (6) is arranged on the cross beam (3); The deflection correction component (5) comprises a support rod (7), a rotating rod (8), a support cylinder (9), a main deflection correction roller (10), a connecting plate (11), a rotating seat (12) and a deflection correction driving member (13); both ends of the support rod (7) are arranged on the fixed component (4); the rotating rod (8) movably penetrates the support rod (7); the support cylinder (9) is fixedly arranged on the rotating rod (8), and the rotating rod (8) is arranged on the inner wall of the support cylinder (9); the main deflection correction roller (10) is rotatably arranged on the outer wall of the support cylinder (9); one end of the connecting plate (11) is fixedly arranged on the support cylinder (9), and the connecting plate (11) is arranged close to the end of the support cylinder (9); the rotating seat (12) is fixedly arranged on the other end of the connecting plate (11); the rotating seat (12) and the support rod (7) are arranged in parallel in a horizontal position; and the deflection correction driving member (13) is provided with two groups, and the two groups of the deflection correction driving members (13) are symmetrically arranged on the rotating seat (12); The deviation correction driving member (13) includes a column (14), a fixed frame (15), a rotating shaft (16), a vertical roller (17), a lower swing rod (18), a movable connecting rod (19), a swing rod (20) and a fixed sleeve (21). The column (14) is fixedly arranged at the end of the rotating seat (12). The fixed frame (15) is arranged on the side wall of the column (14) and close to the upper end of the column (14). The fixed frame (15) is arranged on the side away from the support rod (7). The lower swing rod (18) movably penetrates through the fixed frame (15). The rotating shaft (16) movably penetrates through the lower swing rod (18). One end of the rotating shaft (16) is fixedly arranged on the column (14), and the other end of the rotating shaft (16) is fixedly arranged on the fixed frame (15). The vertical roller (17) is arranged at the upper end of the lower swing rod (18). The fixed sleeve (21) is fixedly arranged on the support rod (7). A U-shaped plate (22) is arranged on the side wall of the fixed sleeve (21). The U-shaped plate (22) is arranged on the side close to the rotating seat (12). A wire hole (23) is formed in the side wall of the rotating seat (12). The wire hole (23) is arranged close to the lower swing rod (18). The wire hole (23) and the U-shaped plate (22) are arranged on the same horizontal line. One end of the swing rod (20) is movably arranged on the U-shaped plate (22), and the other end of the swing rod (20) movably penetrates through the wire hole (23) and is arranged close to the swing rod (20). One end of the movable connecting rod (19) is arranged at the lower end of the swing rod (20), and the other end of the movable connecting rod (19) is arranged on the swing rod (20). The fixing component (4) includes a U-shaped screw rod (24) and a support plate (25). The U-shaped screw rod (24) is fixedly arranged on the longitudinal beam (1) by bolts. The support plate (25) is fixedly arranged on the U-shaped screw rod (24). A placing groove (26) is formed in the upper wall of the support plate (25). The placing groove (26) is U-shaped. Both ends of the support rod (7) are clamped in the placing groove (26). Step grooves (27) are arranged at both ends of the support rod (7). The step grooves (27) are matched with the placing groove (26) in size. The idler roller assembly (6) includes an intermediate frame plate (28), a short frame plate (29), a long frame plate (30), an upper idler roller (31) and a side idler roller (32). There are two groups of intermediate frame plates (28). The two groups of intermediate frame plates (28) are fixedly arranged on the cross beam (3) and close to the middle of the cross beam (3). Both ends of the upper idler roller (31) are movably arranged on the intermediate frame plate (28). The short frame plate (29) is fixedly arranged on the cross beam (3). The short frame plate (29) is symmetrically arranged outside the intermediate frame plate (28) and close to the intermediate frame plate (28). The long frame plate (30) is fixedly arranged on the cross beam (3). The long frame plate (30) is symmetrically arranged outside the short frame plate (29) and close to the end of the cross beam (3). One end of the side idler roller (32) is movably arranged on the short frame plate (29), and the other end of the side idler roller (32) is movably arranged on the long frame plate (30).

2. The mining belt conveyor according to claim 1, characterized in that: The support rod (7) is symmetrically provided with a limiting sleeve (33), and the limiting sleeve (33) is arranged close to the stepped groove (27).

3. The mining belt conveyor according to claim 1, characterized in that: A return roller (34) is movably connected to the support frame (2), and the return roller (34) is arranged near the middle of the support frame (2).

4. The mining belt conveyor according to claim 1, characterized in that: The main deviation-correcting roller (10) is arranged in a drum shape with a high middle and low sides.

5. The mining belt conveyor according to claim 1, characterized in that: The side wall of the support tube (9) is provided with a waist-shaped hole (35), the height of the waist-shaped hole (35) is greater than the diameter of the support rod (7), and the support rod (7) is movably arranged to pass through the waist-shaped hole (35).

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