Belt auxiliary device for conveying broken and soft coal seam of coal mine

Abstract

The invention relates to the technical field of mining belt conveying, and discloses a belt auxiliary device for coal mine broken soft coal seam transportation, which comprises a frame body I, a plurality of carrier rollers are fixedly connected to the surface of the frame body I, belts matched with the carrier rollers are mounted on the surfaces of the carrier rollers, and a frame body II is further included, is fixedly connected to the frame body I and is positioned between two adjacent carrier rollers. Through the arrangement of the orientation mechanism and the coordination mechanism, when branch belts fall on the main belt in a concentrated mode, large coals are guided and corrected through the two columnar rollers, the V-shaped opposite columnar rollers firstly guide and preliminarily correct falling materials, rolling contact of the columnar rollers achieves efficient gathering of the large coals, meanwhile, low-abrasion operation is guaranteed, and the large coals are prevented from falling into the main belt. The gravity center of materials is restrained to the center line of the belt, active deviation prevention is achieved, the inclined scraper executes secondary fine leveling, the tiny deviation trend is further corrected, the inclined scraper only acts on the two sides of material flow, receding is conducted through the convex grooves, the load of the scraper is divided through primary correction of the columnar rollers, front protection is provided for the scraper, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology in mining, specifically to an auxiliary device for conveying soft coal seams in coal mines. Background Technology

[0002] In the process of coal mining and transportation, belt conveyors are crucial continuous transportation equipment. Coal mines and surface coal washing plants widely use material transfer systems in which multiple branch belts converge into a main conveyor belt. Among these systems, belt conveyors are commonly used for material transfer.

[0003] However, due to the inconsistent transport volume of each branch conveyor belt and the difficulty in precisely controlling the material drop position at the transfer point, the coal cannot ideally accumulate in the center of the belt's U-shaped trough when unloaded onto the main conveyor belt. It often leans to one side or is scattered across the entire trough surface. This problem is even more pronounced when transporting moist, sticky coal with high moisture content. The material leaning to one side causes a severe imbalance in the cross-section of the main conveyor belt, generating lateral deviation force. Under continuous deviation, the belt will damage the frame and idlers simultaneously, and there is also a risk of belt tearing. In particular, pulverized coal is very easy to adhere to the working surfaces on both sides of the belt's U-shaped trough. After these adhesions dry and solidify, they make the belt working surface uneven. This not only destroys the smooth surface necessary to form an ideal trough, making it more difficult for subsequent materials to be centered, but the raised parts of the belt back will further aggravate the wear with the idlers. For the adhesions, a fixed scraper cleaner is used, but it is not thorough and causes great wear on the belt, resulting in a shortened belt life. Summary of the Invention

[0004] The purpose of this invention is to provide a belt conveyor auxiliary device for transporting soft coal seams in coal mines, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a belt conveyor auxiliary device for transporting soft coal seams in coal mines, comprising a frame, wherein a plurality of idlers are fixedly connected to the surface of the frame, and a belt cooperating with the idlers is installed on the surface of the idlers, and further comprising:

[0006] Frame 2 is fixedly connected to Frame 1 and located between two adjacent idler rollers;

[0007] An orientation mechanism, mounted on frame two, is used to gather and center the material during belt operation. The orientation mechanism includes a carrier block fixedly connected to the surface of frame two. The surface of the carrier block is provided with a driving component, and a guide component is provided inside it.

[0008] The coordination mechanism is installed on frame two and works in conjunction with the orientation mechanism.

[0009] The driving member comprises an electric telescopic rod fixedly connected to the surface of the carrier block, the output end of the electric telescopic rod is fixedly connected with an auxiliary block, the surface of the auxiliary block is fixedly connected with a pressing rod, one side of the pressing rod is provided with a wave-shaped protrusion, and the inside of the pressing rod is slidably connected with an auxiliary rod.

[0010] The guide member comprises an inserting rod slidably connected to the inside of the carrier block, one end of the inserting rod is fixedly connected with a horizontal rod, both ends of the horizontal rod are fixedly connected with angle blocks, the surface of the angle blocks is rotatably connected with rotating rods, and the side of the surface of the angle blocks away from the rotating rods is rotatably connected with cylindrical rollers.

[0011] The end of the inserting rod close to the pressing rod is a curved surface, and the inserting rod is in abutment with the pressing rod in the initial state.

[0012] Each of the rotating rods is rotatably connected with the second frame body, and the initial inclination angle of the cylindrical rollers is the same as the groove angle formed by the belt on the supporting roller.

[0013] The coordination mechanism comprises an inclined scraper arranged on the second frame body, the surface of the inclined scraper is provided with a convex groove close to the belt, the inside of the convex groove is fixedly connected with a carrier rod, and the surface of the convex groove is fixedly connected with a U-shaped block.

[0014] The inclined scraper is kept apart from the working surface of the belt in the initial state and is in contact with the working surface of the belt in the working state.

[0015] Both ends of the carrier rod are rotatably connected with the second frame body.

[0016] The inside of the U-shaped block is rotatably connected with the auxiliary rod through a connecting rod.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] Through the arrangement of the directional mechanism and the coordination mechanism, when the branch belt is concentratedly dropped on the main belt, the two cylindrical rollers guide and correct the large coal, the V-shaped opposite cylindrical rollers first guide and preliminarily correct the falling material, the rolling contact realizes efficient gathering of the large coal, ensures low-wear operation, restricts the gravity center of the material to the center line of the belt, realizes active deviation prevention, the inclined scraper performs secondary fine flattening, further corrects the slight deviation tendency, and only acts on the two sides of the material flow, is given way by the convex groove, the primary correction of the cylindrical roller divides the load of the scraper, provides front protection for the scraper, and prolongs the service life.

[0019] When the material on the belt is wet and causes adhesion or dry clumping, the wave-shaped protrusion of the pressing rod converts the downward pressure into a patting action of the cylindrical roller, the adhesion layer is vibrated and pretreated, the inclined scraper processes the belt, and then the scraped-off material is concentratedly conveyed to the center material flow of the belt along the convex groove on the inclined scraper, and efficient recovery and arrangement are realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the first view schematic diagram of the whole device of the application;

[0021] Figure 2 It is the schematic diagram of the initial state of the device of the application;

[0022] Figure 3 It is the schematic diagram of the frame body all surface structure of the application;

[0023] Figure 4 It is the schematic diagram of the isolated structure of the coordination mechanism of the application;

[0024] Figure 5 It is the schematic diagram of the partial section structure of the orientation mechanism of the application;

[0025] Figure 6 It is the schematic diagram of the internal section structure of the carrier block of the application.

[0026] In the figure: 10, frame body one; 11, carrier roller; 12, belt; 20, frame body two; 30, orientation mechanism; 31, carrier block; 311, electric telescopic rod; 312, auxiliary block; 313, pressing rod; 314, wave-shaped protrusion; 315, auxiliary rod; 320, insertion rod; 321, cross rod; 322, angle block; 323, rotating rod; 324, columnar roller; 40, coordination mechanism; 41, inclined scraper; 42, convex groove; 43, carrier rod; 44, U-shaped block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0028] Disclosed in the embodiments of the application is a belt auxiliary device for coal mine soft coal seam transportation, which comprises a frame body one 10, a plurality of carrier rollers 11 are fixedly connected to the surface of the frame body one 10, and a belt 12 matched with the carrier rollers 11 is mounted on the surface of the carrier rollers 11, and the belt auxiliary device further comprises:

[0029] A frame body two 20 is fixedly connected to the frame body one 10 and located between the adjacent two carrier rollers 11.

[0030] During use, a detection unit can be installed on the frame body two 20, when wet sticky materials are detected, the detection unit can transmit a signal to the driving part, so that the driving part completes the scraping work on the surface of the belt 12.

[0031] The orienting mechanism 30 is installed on the second frame 20 and is used to gather and center the material during the operation of the belt 12. The orienting mechanism 30 includes a carrier block 31 fixedly connected to the surface of the second frame 20. The surface of the carrier block 31 is provided with a driving component and a guide component is provided inside it.

[0032] The coordination mechanism 40 is mounted on the second frame 20 and works in conjunction with the orientation mechanism 30.

[0033] The driving component includes an electric telescopic rod 311 fixedly connected to the surface of the carrier block 31. An auxiliary block 312 is fixedly connected to the output end of the electric telescopic rod 311. A pressure rod 313 is fixedly connected to the surface of the auxiliary block 312. A wavy protrusion 314 is provided on one side of the pressure rod 313. An auxiliary rod 315 is slidably connected inside the pressure rod 313.

[0034] The guide includes a rod 320 slidably connected inside the carrier block 31. One end of the rod 320 is fixedly connected to a crossbar 321. Angle blocks 322 are fixedly connected to both ends of the crossbar 321. A rotating rod 323 is rotatably connected to the surface of the angle block 322. A columnar roller 324 is rotatably connected to the side of the angle block 322 away from the rotating rod 323.

[0035] During use, the pressure rod 313 only performs linear reciprocating motion inside the carrier block 31. The wavy protrusion 314 can be changed to multiple protrusions. The spacing and smooth slope of the wavy protrusion 314 need to be adjusted according to the actual working conditions.

[0036] The end of the insert rod 320 near the pressure rod 313 is curved, and the insert rod 320 initially abuts against the pressure rod 313.

[0037] Each of the rotating rods 323 is rotatably connected to the frame 20, and the initial tilt angle of the columnar roller 324 is the same as the groove angle formed by the belt 12 on the idler roller 11.

[0038] The coordination mechanism 40 includes an inclined scraper 41 mounted on the frame 20. A groove 42 is provided on the surface of the inclined scraper 41 near the belt 12. A carrier rod 43 is fixedly connected inside the groove 42, and a U-shaped block 44 is fixedly connected to the surface of the groove 42.

[0039] The inclined scraper 41 is made of flexible material to prevent large coal mines from impacting the surface of the inclined scraper 41 or causing damage to the inclined scraper 41 by exceeding the groove 42. The inclined scraper 41 has a flexible cutting edge near the groove 42.

[0040] The inclined scraper 41 initially maintains a gap with the working surface of the belt 12, and contacts the working surface of the belt 12 during operation.

[0041] The two ends of the support rod 43 are rotatably connected to the frame 20.

[0042] During use, torsion springs need to be installed at both ends of the carrier rod 43. One end of the torsion spring is connected to the carrier rod 43, and the other end is connected to the frame 20, thereby giving the carrier rod 43 an initial deflection angle, that is, a state that is higher than the belt 12 and not in contact with the belt 12. Torsion springs are also installed at each rotating rod 323. The installation principle is the same as that of the carrier rod 43, but the rotating rod 323 needs to drive the angle block 322 to make the columnar roller 324 contact the belt 12.

[0043] The U-shaped block 44 is internally rotatably connected to the auxiliary rod 315 via a follower rod.

[0044] Working principle:

[0045] For installation steps, please refer to... Figure 1 as well as Figure 2 Install the frame 20 between two adjacent idler rollers 11, calibrate the columnar roller 324 so that it is located at 1 / 2 of the side wall of the U-shaped groove of the belt 12, and ensure that its tilt angle is the same as the tilt angle of the belt 12 at this point. Confirm that the inclined scraper 41 is at a height slightly lower than the columnar roller 324 and tilted towards the columnar roller 324. At the same time, the protrusion 42 of the inclined scraper 41 is in the middle of the U-shaped groove of the belt 12. Under normal transportation, the raised protrusion 42 avoids the main material flow on the belt 12. Except for the protrusion 42, the inclined scraper 41 near the belt 12 has a flexible cutting edge. Because the belt 12 is rigidly supported by the idler rollers 11, it is difficult to be pressed down. The belt 12 in the middle part between the two idler rollers 11 is in a suspended state, like the middle of a taut drum, with a certain degree of elasticity and flexibility. Only a small force is needed to press down the belt 12 at this point. This causes significant deformation, efficiently gathering materials from both sides towards the center. Simultaneously, the downward pressure on the middle section near the idler roller 11 minimizes damage to the belt 12 caused by the idler roller 11's rigidity, preventing mechanical interference and providing a relatively safe working space for the downward-pressing idler roller 11. This allows the entire device to achieve optimal material gathering and anti-deviation effects with minimal energy consumption. Furthermore, the columnar roller 324 is positioned at the 1 / 2 mark. Since the belt 12 generally appears thicker at the center, or can be understood as having the hardest structure at this point—the lower edge of the sidewall near the bottom of the trough—it would require a significant force to deform the belt 12 sufficiently if it were at the upper edge of the sidewall. Positioning the columnar roller 324 at the 1 / 2 mark of the U-shaped trough sidewall effectively induces ideal deformation in the belt 12, while ensuring that the coal slides "controlled" towards the center.

[0046] When belt 12 starts working, the inclined scraper 41, which is not in contact with belt 12, is positioned above belt 12. First, the material on belt 12 passes through... Figure 2 or Figure 4As shown, at the columnar roller 324, the movement of the belt 12 drives large pieces of material, such as coal, from both sides of the U-shaped groove of the belt 12 to the bottom of the U-shaped groove. Viewed from the direction of the carrier block 31 towards the belt 12, the two columnar rollers 324 form a V-shape and are in a rolling state due to the movement of the belt 12. When material enters the area of ​​the two columnar rollers 324, it is gradually guided from a large opening to a small opening, causing the material to move towards the middle part of the U-shaped groove of the belt 12. This provides initial correction of the material's position on the belt 12, forcibly gathering large pieces of material scattered on both sides, especially those that might cause instability, to the bottom of the U-shaped groove in the center of the belt 12. This achieves an "active anti-deviation" effect, rather than correcting the deviation after it occurs, ensuring the balance of the material load and reducing the possibility of subsequent deviation. If large pieces of material... When the material at the edge of the belt 12 does not move towards the lower part of the belt 12, it will generate huge running resistance, increase the motor load, and cause severe wear on the edge of the belt 12 and the equipment. Through pre-guidance, the material is "guided" towards the center instead of "scraping" or "blocking". The material flow in the central groove of the belt 12 is more stable, increasing the effective conveying capacity and gathering large pieces of material to the center, making the sloping areas on both sides of the belt 12 "empty" to facilitate the subsequent work of the inclined scraper 41. When the material on the belt 12 that has been initially corrected passes the inclined scraper 41, the convex groove 42 effectively avoids the material in its center. As the inclined scraper 41 facing the convex groove 42 is close to the belt 12, since the convex groove 42 has already avoided the main material part, the cutting edges on both sides of the inclined scraper 41 perform a second step of fine processing on the pre-gathered material, thereby ensuring that the material surface height is consistent and stable, and avoiding material rolling and spillage.

[0047] When the material in this section of the belt 12, such as coal, is too wet and sticky, it will adhere to the side wall of the U-shaped groove of the belt 12, causing the material to not move towards the center. At this time, when the material with strong adhesion in this area of ​​the belt 12 passes between the two columnar rollers 324, the electric telescopic rod 311 on the carrier block 31 starts to work. The electric telescopic rod 311 drives the auxiliary block 312 to descend towards the belt 12. At this time, as the pressure rod 313 gradually descends, the insertion rod 320 changes from contacting the plane of the pressure rod 313 to contacting the corrugated protrusion 314. When the end of the insertion rod 320 contacts the corrugated protrusion 314 of the pressure rod 313, it will drive the crossbar 321 to swing, which is affected by the crossbar. Due to the influence of rod 321, angle block 322 swings at the same angle, and column roller 324 intermittently pats the surface of belt 12, causing the coal blocks on the surface to move towards the center of belt 12. At the same time, the inclined scraper 41 is pressed down by auxiliary rod 315, causing U-shaped block 44 to be forced to rotate. The inclined scraper 41 rotates towards the two curved surfaces of belt 12, scraping off the attached material in the non-central section, and guiding the scraped material towards the groove 42. Through the patting and scraping action, the problem of strong adhesion of wet and sticky materials can be effectively solved. Patting before scraping loosens the internal adhesion layer and causes cracks, greatly reducing the scraping resistance and protecting belt 12 from wear.

[0048] Once the columnar roller 324 has completed at least one patting action, it indicates that the inclined scraper 41 has completed the scraping action. Subsequently, the electric telescopic rod 311 is reset, returning the device to its initial state.

[0049] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A conveyor belt auxiliary device for transporting soft coal seams in coal mines, comprising a frame (10), wherein a plurality of idlers (11) are fixedly connected to the surface of the frame (10), and a conveyor belt (12) cooperating with the idlers (11) is installed on the surface of the idlers (11), characterized in that, Also includes: Frame 2 (20) is fixedly connected to frame 1 (10) and located between two adjacent idler rollers (11); Orientation mechanism (30) is set on frame two (20) and is used to gather and center the material during the operation of belt (12). Orientation mechanism (30) includes a carrier block (31) fixedly connected to the surface of frame two (20). The surface of the carrier block (31) is provided with a driving component and a guide component is provided inside it. The coordination mechanism (40) is set on the second frame (20) and works in conjunction with the orientation mechanism (30).

2. The belt conveyor auxiliary device for transporting soft coal seams in coal mines according to claim 1, characterized in that: The driving component includes an electric telescopic rod (311) fixedly connected to the surface of the carrier block (31). An auxiliary block (312) is fixedly connected to the output end of the electric telescopic rod (311). A pressure rod (313) is fixedly connected to the surface of the auxiliary block (312). A wavy protrusion (314) is provided on one side of the pressure rod (313). An auxiliary rod (315) is slidably connected inside the pressure rod (313).

3. The belt conveyor auxiliary device for transporting soft coal seams in coal mines according to claim 2, characterized in that: The guide includes a rod (320) slidably connected inside the carrier block (31). One end of the rod (320) is fixedly connected to a crossbar (321). Both ends of the crossbar (321) are fixedly connected to angle blocks (322). A rotating rod (323) is rotatably connected to the surface of the angle block (322). A columnar roller (324) is rotatably connected to the side of the angle block (322) away from the rotating rod (323).

4. The belt conveyor auxiliary device for transporting soft coal seams in coal mines according to claim 3, characterized in that: The end of the insert (320) near the pressure rod (313) is curved, and the insert (320) initially abuts against the pressure rod (313).

5. The belt conveyor auxiliary device for transporting soft coal seams in coal mines according to claim 4, characterized in that: Each of the said rotating rods (323) is rotatably connected to the second frame (20), and the initial tilt angle of the columnar roller (324) is the same as the groove angle formed by the belt (12) on the idler roller (11).

6. The belt conveyor auxiliary device for transporting soft coal seams in coal mines according to claim 5, characterized in that: The coordination mechanism (40) includes a slanted scraper (41) set on the frame (20). The slanted scraper (41) has a groove (42) on the side of the surface near the belt (12). A carrier rod (43) is fixedly connected inside the groove (42). A U-shaped block (44) is fixedly connected to the surface of the groove (42).

7. The belt conveyor auxiliary device for transporting soft coal seams in coal mines according to claim 6, characterized in that: The inclined scraper (41) initially maintains a gap with the working surface of the belt (12), and contacts the working surface of the belt (12) during operation.

8. The belt conveyor auxiliary device for transporting soft coal seams in coal mines according to claim 7, characterized in that: The two ends of the support rod (43) are rotatably connected to the frame body two (20).

9. A conveyor belt auxiliary device for transporting soft coal seams in coal mines according to claim 8, characterized in that: The U-shaped block (44) is internally connected to the auxiliary rod (315) by rotation.

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