Blockage clearing type ore scraper conveyer

Abstract

The invention discloses a blockage clearing type ore scraper conveyer, and relates to the technical field of ore transportation, aiming at a conventional scraper conveyer structure, firstly, a scraper structure is improved, a material stirring plate and a flying wing plate which do not interfere with normal advancing of a scraper are additionally arranged, and the material stirring plate and the flying wing plate can freely swing along with the advancing process of ore materials; the anti-blocking device aims at freely correcting the ore materials to avoid excessive accumulation so as to achieve the preliminary anti-blocking purpose, and the key point is that a material changing plate and a corresponding crushing roller which are arranged aiming at the two groups of the scrapers are subjected to the possible accumulation position of the ore materials, so that the ore materials can be conveniently and quickly changed. According to the device, part of ore materials can be forcibly squeezed into the upper side position of the material changing plate, the ore materials are secondarily smashed through the smashing rollers, on one hand, the device can serve as a material changing channel in the blockage clearing process, and on the other hand, the dredging performance of the related ore materials is improved mainly in a secondary smashing mode.

Description

Technical Field

[0001] The invention relates to the technical field of ore transportation, and in particular to a blockage-clearing type ore scraper conveyor. Background Art

[0002] The scraper conveyor is a conventional belt conveyor with a corresponding scraper structure added, which is used in the transportation process during ore mining. For details, please refer to the relevant content mentioned in the publication number CN105600299A.

[0003] It should be noted that the scraper conveyor needs to overcome greater resistance when working, and when encountering relatively large volume / weight ore, the overall drag chain scraper structure is difficult to drive the ore in this part to move, resulting in continuous accumulation of ore in this part, affecting the overall transportation process, and also aggravating the wear of the overall drag chain scraper (chain, sprocket, scraper);

[0004] It is particularly important to note that during the continuous transportation of ore, some broken ore is stuck in the gap between the scraper and the flat plate, which will also affect the operation of the drag chain scraper structure, such as chain floating, chain jumping and other faults. This application proposes a solution to this problem. Summary of the invention

[0005] The purpose of the present invention is to provide a blockage-clearing ore scraper conveyor. Specifically, for scraper conveyors used in coal mines, due to the volume of the ore, the ore may be too large to push the ore to move, resulting in ore accumulation and affecting transportation, or part of the ore may be stuck in the gap between the scraper and the plate, which will also affect the overall transportation efficiency.

[0006] The object of the present invention can be achieved by the following technical scheme: A blockage-clearing ore scraper conveyor, comprising a working base, a drag chain assembly, a scraper and a drive assembly corresponding to the drag chain assembly, wherein a mounting cover corresponding to the drag chain assembly is installed on the working base;

[0007] The scraper is arranged in the drag chain assembly along the width direction of the corresponding drag chain assembly, a plurality of material shifting plates are arranged on the working base, a material changing plate and a crushing roller are rotatably installed on the upper position of the mounting cover corresponding to the scraper, a movable nail roller is rotatably installed on the lower side of the scraper, the crushing roller is located just above the middle position of the material changing plate, and a material storage bin corresponding to the crushing roller is opened on the mounting cover.

[0008] It is further configured as follows: the material changing plate, the crushing roller and the movable nail roller are all arranged along the width direction of the working base, and an auxiliary motor corresponding to the crushing roller is installed at an external position of the mounting cover.

[0009] It is further configured that: the cross section of the material changing plate is in an upwardly curved arch shape, and the radial distance of the material changing plate in the horizontal direction is greater than the spacing between the scrapers in two adjacent positions.

[0010] It is further configured as follows: a transmission shaft parallel to the scraper is installed at the middle position of the material changing plate, the transmission shaft at one end of the material changing plate penetrates to the outer position of the mounting cover, and a yield pin plate is installed on the transmission shaft at one end of the material changing plate, and a limit block corresponding to the yield pin plate is installed at the outer position of the mounting cover.

[0011] It is further configured as follows: a notch corresponding to the clearance pin plate is provided on the limit block, and a working auxiliary switch corresponding to the auxiliary motor is provided between the clearance pin plate and the limit block.

[0012] It is further configured as follows: the material-diverting plate is arranged in a direction perpendicular to the horizontal plane of the working base, and one end of the material-diverting plate is rotatably connected to the working base.

[0013] It is further configured as follows: the length of the material stripper plate along the transmission direction of the drag chain assembly is less than the spacing between the scraper plates in two adjacent positions, and wing plates are installed on the surface positions on both sides of the other end of the material stripper plate. The cross-section of the wing plate is an upwardly curved arch shape, and the length of the wing plate along the transmission direction of the drag chain assembly is less than the length of the material stripper plate.

[0014] It is further configured as follows: the setting position of the wing plate is lower than the upper surface position of the scraper, the setting position of the material changing plate is higher than the upper surface position of the scraper, and the scraper is provided with directional yielding grooves corresponding to the wing plate and the material shifting plate.

[0015] The present invention has the following beneficial effects:

[0016] 1. For the conventional scraper conveyor structure, the scraper structure is first improved, specifically, corresponding material-diverting plates and wing plates are added between the scrapers in two adjacent positions, wherein the material-diverting plates can swing freely, and its essence is to swing in coordination with the moving process of the ore material, but when the scraper passes through the material-diverting plates, the material-diverting plates will be forced to be straightened, so that the forced swinging process of the material-diverting plates can be used to forcibly divert the ore materials that may be accumulated, so as to avoid excessive accumulation of ore materials and achieve the initial purpose of preventing blockage;

[0017] 2. The key content is to target the material changing plate at the upper side of the scraper in the two adjacent positions, and further limit the rotation direction between the material changing plate and the mounting cover, specifically: ensure that the material changing plate rotates along the middle section, so that when the ore material accumulates, the accumulated ore material will be forced into the empty storage bin, and the auxiliary motor will be started through the working auxiliary switch during the rotation of the material changing plate, thereby driving the crushing roller to rotate for a certain period, and the crushing roller will perform secondary crushing on the ore material. On the one hand, it can be used as a material changing channel in the process of clearing blockage, and on the other hand, it mainly improves the unblocking property of the related ore material through secondary crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of a blockage-clearing ore scraper conveyor proposed by the present invention;

[0020] Figure 2 A cross-sectional view of an installation cover in a blockage-clearing ore scraper conveyor proposed by the present invention;

[0021] Figure 3 This is a schematic structural diagram of a drag chain assembly in a blockage-clearing ore scraper conveyor proposed by the present invention;

[0022] Figure 4 A schematic diagram of the structure of a scraper in a blockage-clearing ore scraper conveyor proposed by the present invention;

[0023] Figure 5 A blockage-clearing ore scraper conveyor proposed by the present invention Figure 4 Split diagram of ;

[0024] Figure 6 It is a cross-sectional view of a crushing roller corresponding to the mounting cover in a blockage-clearing ore scraper conveyor proposed by the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of a crushing roller in a blockage-clearing ore scraper conveyor proposed by the present invention;

[0026] Figure 8 This is a top view of the position of a material stripping plate in a blockage-clearing ore scraper conveyor proposed by the present invention.

[0027] In the figure: 1. working base; 2. mounting cover; 3. auxiliary motor; 4. empty bin for material storage; 5. drag chain assembly; 6. scraper; 7. directional clearance groove; 8. wing plate; 9. material shifting plate; 10. movable nail roller; 11. limit block; 12. crushing roller; 13. clearance pin plate; 14. material changing plate. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: For a scraper conveyor used in a coal mine, due to the volume of the ore, there may be a problem that the ore is too large to push the ore to move, resulting in ore accumulation and affecting transportation, or part of the ore is stuck in the gap between the scraper and the flat plate, which will also affect the overall transportation efficiency. The following technical solutions are proposed:

[0030] Reference Figures 1 to 8 In this embodiment, a blockage-clearing ore scraper conveyor includes a working base 1, a drag chain assembly 5, a scraper 6, and a drive assembly corresponding to the drag chain assembly 5. A mounting cover 2 corresponding to the drag chain assembly 5 is installed on the working base 1;

[0031] The scraper 6 is arranged in the drag chain assembly 5 along the width direction of the corresponding drag chain assembly 5, and a plurality of material-discharging plates 9 are arranged on the working base 1. A material-changing plate 14 and a crushing roller 12 are rotatably installed on the upper position of the mounting cover 2 corresponding to the scraper 6, and a movable nail roller 10 is rotatably installed on the lower side of the scraper 6. The crushing roller 12 is located just above the middle position of the material-changing plate 14. A material storage bin 4 corresponding to the crushing roller 12 is opened on the mounting cover 2, and the material-changing plate 14, the crushing roller 12 and the movable nail roller 10 are all arranged along the width direction of the working base 1;

[0032] An auxiliary motor 3 corresponding to the crushing roller 12 is installed at the external position of the mounting cover 2, and the material stripping plate 9 is arranged in a direction perpendicular to the horizontal plane of the working base 1, and one end of the material stripping plate 9 is rotatably connected to the working base 1. The length of the material stripping plate 9 along the transmission direction of the drag chain assembly 5 is less than the spacing between the scraper plates 6 in two adjacent positions, and wing plates 8 are installed on the surface positions on both sides of the other end of the material stripping plate 9. The cross-section of the wing plate 8 is in an upwardly curved arch shape, and the length of the wing plate 8 along the transmission direction of the drag chain assembly 5 is less than the length of the material stripping plate 9.

[0033] Basic principle: The difference between a scraper conveyor and a conventional belt conveyor lies in the scraper structure, specifically, the drag chain structure 5 thereof continuously moves around the outer contour of the working base 1 through the driving structure, and the scrapers 6 are arranged in sequence along a direction parallel to the width of the working base 1. When the drag chain structure 5 continuously moves, the ore materials in the scrapers 6 at two adjacent positions are continuously moved. This part is the basic principle of the present invention and the conventional scraper conveyor;

[0034] However, the differences from conventional scraper conveyors are as follows:

[0035] S1: Refer to 4, 5, 6, and 8. A plurality of material-dispensing plates 9 are installed on the working base 1, and one end of the material-dispensing plate 9 is ensured to be rotatably connected to the working base 1. This part needs to be compared with Figure 6 Explanation: It is necessary to set the rotation position of the material-diverting plate 9 according to the traveling direction of the ore material. Figure 6 Taking the position relationship in as an example, since the wing plate is installed at the left position of the material-diverting plate 9 in the figure, the right position is the rotation position of the corresponding working base 1, so the overall ore material moving direction should be from right to left;

[0036] S2: Combine S1 and Figure 8 To illustrate, when the ore material is pushed by the scraper and continues to move, and when the material-dispensing plate 9 is just located in the middle of the scraper 6 in two adjacent positions, the movement of the ore material will cause the material-dispensing plate 9 to swing freely, but when the scraper continues to move to the rotation position corresponding to the material-dispensing plate 9, although the material-dispensing plate 9 and the working base 1 keep rotating, the position of the rotation point will not change. In this regard, the scraper 6 is used to forcibly align the material-dispensing plate 9, the purpose of which is to push the ore material in the middle of the scraper 6 in the two adjacent positions to avoid excessive accumulation of the ore material, thereby playing a preliminary role in preventing the problem of accumulation;

[0037] S3: In addition, when the scraper 6 moves normally, the movable nail roller 10 at its lower position will rotate freely, thereby continuing to crush and grind the ore material stuck on the lower side of the scraper 6, avoiding the ore material stuck on the lower side of the scraper 6 from generating excessive resistance to the movement of the scraper 6, and the flying wing plate 8 on the material-diverting plate 9 will further divert the possible accumulated ore material, and after the material-diverting plate 9 is forced to be straightened, it can pass through the directional scraper groove 7 on the scraper 6, thereby not interfering with the normal movement of the scraper 6.

[0038] Embodiment 2: Based on the basic principle of embodiment 1, the following structural description of the material exchange plate is proposed:

[0039] The material changing plate 14, the crushing roller 12 and the movable nail roller 10 are all arranged along the width direction of the working base 1, and the auxiliary motor 3 corresponding to the crushing roller 12 is installed at the outer position of the mounting cover 2. The cross section of the material changing plate 14 is an upwardly curved arch shape, and the radial distance of the material changing plate 14 in the horizontal direction is greater than the spacing between the scrapers 6 in two adjacent positions. A transmission shaft parallel to the scraper 6 is installed at the middle section of the material changing plate 14. The transmission shaft at one end of the material changing plate 14 penetrates to the outer position of the mounting cover 2, and a yield pin plate 13 is installed on the transmission shaft at one end of the material changing plate 14;

[0040] A limit block 11 corresponding to the give way pin plate 13 is installed on the outer position of the mounting cover 2, and a notch corresponding to the give way pin plate 13 is opened on the limit block 11, and a working auxiliary switch corresponding to the auxiliary motor 3 is arranged between the give way pin plate 13 and the limit block 11, the setting position of the wing plate 8 is lower than the upper surface position of the scraper 6, the setting position of the material changing plate 14 is higher than the upper surface position of the scraper 6, and a directional give way groove 7 corresponding to the wing plate 8 and the material shifting plate 9 is opened in the scraper 6.

[0041] Solution Description: This section is combined with Figure 6 The installation cover 2 is used to prevent the ore material from falling during the transmission process. However, if the cover 2 is completely close to the scraper 6, it will also produce a large resistance to the travel process of the scraper 6. Figure 6 The structural characteristics of the mounting cover 2 are that the inner wall of the top of the mounting cover 2 is much higher than the scraper 6, but it should be noted that when the ore material may accumulate, the ore material will be forced to be squeezed upward. Figure 6 For explanation, when the ore material is transported from right to left, the ore material will be squeezed to the upper side of the material exchange plate 14, causing the material exchange plate 14 to rotate clockwise.

[0042] However, it should be noted that the material may also accumulate on the right side of the material exchange plate 14. Then, the left side of the material exchange plate 14 is subjected to downward pressure from the ore material, which may cause counterclockwise rotation. Specifically, according to the gravity of the ore material on both sides of the material exchange plate 14, the material exchange plate 14 is driven to rotate clockwise or counterclockwise.

[0043] However, it should be noted that: assuming that the rotation angle of the material exchange plate 14 is too large, one end of the material exchange plate 14 will move to the lower side of the upper surface of the scraper 6, thereby directly interfering with the normal travel of the scraper 6. For this reason, it is necessary to add a limit block 11 and a stop pin block 13, the purpose of which is to limit the maximum rotation angle of the material exchange plate 14 to avoid interfering with the normal travel of the scraper 6.

[0044] In this regard, combined with the above content, it is explained that: during the continuous process of the ore material, the ore material that may be accumulated will be forced into the internal position of the material exchange plate 14 corresponding to the empty material storage bin 4. In this process, the crushing roller 12 is driven to rotate continuously, with the purpose of secondary crushing of the ore material inside it, and the ore material after the secondary crushing will fall into the middle position of two groups of scrapers 6 in accordance with the inclination direction of the material exchange plate 14. On the one hand, the empty material storage bin 4 can be used as a material exchange channel in the clearing process, and when the ore material is exchanged in the material exchange channel, the secondary crushing method is used to improve the unblocking properties of the related ore materials, thereby preventing the ore materials from continuing to accumulate in the empty material storage bin 4.

[0045] Embodiment 3: The following explanation is provided for the relevant contents in Embodiment 2:

[0046] Combination Figure 7 As for the conventional scraper conveyor, the driving motor thereof is continuously started, but from the aspect of saving electric energy, the auxiliary motor 3 thereof does not need to be continuously started, specifically, the working auxiliary switch is set by cooperating with the give way pin plate 13 and the limit block 11, and its essence is that the give way pin plate 13 and the limit block 11 are provided with conductive electronic switches on both sides of the corresponding missing corners, such as: the give way pin plate 13 is provided with positive electrode sheets at both sides, and the limit block 11 is provided with negative electrode sheets corresponding to the positive electrode sheets, when the positive electrode sheets are completely in contact with the negative electrode sheets, it indicates that the circuit of the auxiliary motor 3 is in a connected state, so that the auxiliary motor 3 is energized and drives the crushing roller 12 to rotate;

[0047] It should be noted that: under normal conditions, the material changing plate 14 is in a completely horizontal state, and the give way pin plate 13 is arranged in a vertical direction, so that the circuit of the auxiliary motor 3 is in a disconnected state, and the crushing roller 12 is not started;

[0048] However, during the continuous process of ore materials, part of the ore materials accumulate and cause the material exchange plate 14 to tilt to the left or right to the maximum. During this process, the stop pin plate 13 rotates to the maximum angle in the left or right direction and contacts the limit block 11, so that the auxiliary motor 3 is powered on and started. It should be noted that the working auxiliary switch does not serve as a switching circuit for the auxiliary motor 3. Specifically, when the working auxiliary switch is connected, it sends a command signal to the auxiliary motor 3, and controls the auxiliary motor 3 to produce related actions with the command signal. In this embodiment, it mainly indicates that after the auxiliary motor 3 receives the command signal, the auxiliary motor 3 is in a starting state, and the starting time is 10 to 30 seconds, that is, when the working auxiliary switch sends a signal, the auxiliary motor 3 only maintains a working process of 10 to 30 seconds, and stops immediately after completing a single working process until waiting for the next command signal.

[0049] In summary: for the conventional scraper conveyor structure, the scraper structure is first improved, and a shifting plate and a wing plate that will not interfere with the normal movement of the scraper are added. The shifting plate and the wing plate will swing freely with the movement of the ore material, but will be forced to be straightened by the scraper. The purpose is to freely straighten the ore material to avoid excessive accumulation and achieve the initial anti-blocking purpose. The key lies in the material change plates and corresponding crushing rollers set for the two groups of scrapers. Due to the possible accumulation position of the ore material, part of the ore material will be forced to squeeze into the upper side of the material change plate, and the crushing roller will be used to perform secondary crushing on the ore material. On the one hand, it can be used as a material change channel in the process of clearing blockage, and on the other hand, it is mainly to improve the unblocking property of the related ore material by means of secondary crushing.

[0050] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A blockage-clearing ore scraper conveyor, comprising a working base (1), a drag chain assembly (5), a scraper (6) and a drive assembly corresponding to the drag chain assembly (5), characterized in that: The working base (1) is provided with a mounting cover (2) corresponding to the drag chain assembly (5); The scraper (6) is arranged in the drag chain assembly (5) along the width direction of the corresponding drag chain assembly (5); a plurality of material shifting plates (9) are arranged on the working base (1); a material changing plate (14) and a crushing roller (12) are rotatably installed on the mounting cover (2) at an upper position corresponding to the scraper (6); a movable nail roller (10) is rotatably installed at a lower position of the scraper (6); the crushing roller (12) is located directly above the middle position of the material changing plate (14); and a material storage empty bin (4) corresponding to the crushing roller (12) is opened on the mounting cover (2).

2. The blockage-clearing ore scraper conveyor according to claim 1, characterized in that: The material changing plate (14), the crushing roller (12) and the movable nail roller (10) are all arranged along the width direction of the working base (1), and an auxiliary motor (3) corresponding to the crushing roller (12) is installed at an external position of the installation cover (2).

3. The blockage-clearing ore scraper conveyor according to claim 1, characterized in that: The cross section of the material changing plate (14) is in the shape of an upwardly curved arch, and the radial distance of the material changing plate (14) in the horizontal direction is greater than the spacing between the scrapers (6) in two adjacent positions.

4. The blockage-clearing ore scraper conveyor according to claim 1, characterized in that: A transmission shaft parallel to the scraper (6) is installed at the middle section of the material exchange plate (14), the transmission shaft at one end of the material exchange plate (14) penetrates to the outside of the mounting cover (2), and a clearance pin plate (13) is installed on the transmission shaft at one end of the material exchange plate (14), and a limit block (11) corresponding to the clearance pin plate (13) is installed at the outside of the mounting cover (2).

5. The blockage-clearing ore scraper conveyor according to claim 4, characterized in that: The limit block (11) is provided with a notch corresponding to the clearance pin plate (13), and an auxiliary working switch corresponding to the auxiliary motor (3) is provided between the clearance pin plate (13) and the limit block (11).

6. The blockage-clearing ore scraper conveyor according to claim 1, characterized in that: The material-shifting plate (9) is arranged in a direction perpendicular to the horizontal plane of the working base (1), and one end of the material-shifting plate (9) is rotatably connected to the working base (1).

7. The blockage-clearing ore scraper conveyor according to claim 6, characterized in that: The length of the material-diverting plate (9) along the transmission direction of the drag chain assembly (5) is less than the spacing between the scraper plates (6) at two adjacent positions, and wing plates (8) are installed on the two side surfaces of the other end of the material-diverting plate (9), the cross section of the wing plates (8) is in the shape of an upwardly curved arch, and the length of the wing plates (8) along the transmission direction of the drag chain assembly (5) is less than the length of the material-diverting plate (9).

8. The blockage-clearing ore scraper conveyor according to claim 7, characterized in that: The setting position of the wing plate (8) is lower than the upper surface position of the scraper (6), the setting position of the material changing plate (14) is higher than the upper surface position of the scraper (6), and the scraper (6) is provided with a directional clearance groove (7) corresponding to the wing plate (8) and the material shifting plate (9).

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