A regulating device for a mine belt tripper

Abstract

The utility model relates to the technical field of coal mine conveying, concretely to a kind of adjusting device for mine belt type transfer machine, including mounting bracket, the inside symmetry of mounting bracket is equipped with driving drum and tensioning drum, the both ends of tensioning drum are rotatably equipped with sliding seat, two The sliding seat is slidably connected with the mounting bracket, adjusting assembly for controlling the sliding seat to slide is equipped on the mounting bracket, one end of the adjusting assembly is equipped with first drive component for controlling its operation and self-locking;By setting adjusting assembly, first drive component and second drive component, the effect that the accurate control of tensioning drum position can be realized is achieved, avoid adjustment excess or deficiency, while having self-locking characteristics, can prevent screw rod from reverse due to vibration, load change or the reverse force of conveyor belt tension, ensure that conveyor belt is kept in stable state for a long time after tensioning, effectively avoid the skid, deviation or the decline of conveying efficiency due to relaxation.

Description

Technical Field

[0001] This utility model relates to the field of coal mine conveying technology, and in particular to an adjusting device for a mine belt conveyor. Background Technology

[0002] Mining belt conveyors are key intermediate transfer and conveying equipment in underground coal mining operations. They are mainly used to connect tunneling machines and main transport belts to realize the continuous transfer of materials such as coal and gangue. They are widely used in fully mechanized mining and tunneling faces and roadway excavation systems.

[0003] During installation, idler rollers must be installed, the conveyor belt laid and tensioned to ensure smooth operation. When adjusting the conveyor belt tension, a screw is rotated using a professional tool to move the tensioning roller and adjust the belt tension.

[0004] However, traditional lead screw adjustment requires specialized tools such as wrenches and torque wrenches. If the tools are missing or the model is incompatible, it will directly lead to the inability to adjust. In special scenarios such as underground, tools are inconvenient to carry and store, and are easy to lose or be damaged, increasing maintenance costs. Ordinary lead screws do not have a self-locking function and need to be locked with nuts or pins after adjustment. Under vibration conditions, they are prone to loosening, resulting in a sudden drop in tension, or even the lead screw reversing, causing the conveyor belt to suddenly loosen, causing equipment failure or material spillage. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide an adjustment device for a mining belt conveyor.

[0006] The objective of this utility model is achieved through the following technical solution: an adjustment device for a mining belt conveyor, comprising a mounting frame, wherein a drive roller and a tension roller are symmetrically arranged inside the mounting frame, and multiple idler roller assemblies are fixedly installed between the drive roller and the tension roller on the mounting frame. A conveyor belt is provided on the surface of the drive roller and the tension roller, and the multiple idler roller assemblies are arranged inside the conveyor belt. A drive device for controlling the rotation of the drive roller is provided on the side of the mounting frame near the drive roller; both ends of the tension roller are rotatably provided with sliding seats, and both sliding seats are slidably connected to the mounting frame. An adjustment component for controlling the sliding of the sliding seats is provided on the mounting frame, and a first drive component for controlling its operation and self-locking is provided at one end of the adjustment component. A second drive component for controlling its operation and retracting inside the mounting frame is provided on the first drive component.

[0007] Preferably, the adjusting assembly includes a lead screw rotatably mounted on the mounting bracket, the sliding seat having a threaded hole corresponding to the position of the lead screw, and a spline shaft fixedly mounted on one end of the lead screw.

[0008] Preferably, the first drive assembly includes a worm gear splinedly connected to the splined shaft, and a worm is engaged on the outer surface of the worm gear.

[0009] Preferably, the worm gear has a insertion hole at its center, and the second drive assembly includes a insertion rod that is inserted into the insertion hole. One end of the insertion rod is fixedly provided with a rotating block, and a grip is slidably provided on the outer surface of the rotating block. Both ends of the grip are fixedly provided with spherical blocks.

[0010] Preferably, the mounting bracket is fixedly provided with a support block at the position corresponding to the worm gear, and the support block is provided with a first rotating hole at the position corresponding to the worm gear, and the worm gear is connected to the first rotating hole through a bearing.

[0011] Preferably, the mounting bracket has a second rotating hole at the end corresponding to both the spline shaft and the lead screw. The spline shaft and the lead screw are connected to the second rotating hole through bearings. A side cover is fixedly installed on the side of the mounting bracket.

[0012] Preferably, the cross-sectional shape of the plug rod is hexagonal, and the plug hole is adapted to the plug rod.

[0013] The beneficial effects of the adjustment device for the mining belt conveyor are as follows: by setting the adjustment component, the first drive component, and the second drive component, the effect of precise control of the tensioning roller position can be achieved, avoiding over- or under-adjustment. At the same time, it has a self-locking characteristic, which can prevent the lead screw from reversing due to vibration, load changes, or the reaction force of the conveyor belt tension, ensuring that the conveyor belt maintains a stable state for a long time after tensioning, and effectively avoiding slippage, deviation, or reduction in conveying efficiency caused by slack. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the mounting bracket of this utility model; Figure 3 This is a first-view structural schematic diagram of the tensioning roller of this utility model; Figure 4 This is a structural schematic diagram of the tensioning roller of this utility model from a second perspective; Figure 5 This is a structural schematic diagram of the tensioning roller of this utility model from a third-view perspective; Figure 6 This is a schematic diagram of the structure of the second drive component of this utility model.

[0016] In the diagram: 1. Mounting frame; 101. Support block; 102. First rotating hole; 103. Second rotating hole; 104. Side cover; 2. Drive roller; 3. Tensioning roller; 4. Idler roller assembly; 5. Conveyor belt; 6. Drive unit; 7. Sliding seat; 8. Adjustment assembly; 801. Lead screw; 802. Splined shaft; 9. First drive assembly; 901. Worm gear; 902. Worm; 9021. Insertion hole; 10. Second drive assembly; 1001. Insertion rod; 1002. Rotating block; 1003. Handle; 1004. Spherical block. Detailed Implementation

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0019] like Figures 1 to 6 As shown, an adjusting device for a mining belt conveyor includes a mounting frame 1. A drive roller 2 and a tension roller 3 are symmetrically arranged inside the mounting frame 1. Multiple idler roller assemblies 4 are fixedly mounted on the mounting frame 1 between the drive roller 2 and the tension roller 3. A conveyor belt 5 is provided on the surface of the drive roller 2 and the tension roller 3. The multiple idler roller assemblies 4 are arranged inside the conveyor belt 5. A drive device 6 for controlling the rotation of the drive roller 2 is provided on the side of the mounting frame 1 closest to the drive roller 2. Sliding seats 7 are rotatably provided at both ends of the tension roller 3. Both sliding seats 7 are slidably connected to the mounting frame 1. An adjusting component 8 for controlling the sliding of the sliding seats 7 is provided on the mounting frame 1. One end of the adjusting component 8 is provided with a first drive component 9 for controlling its operation and self-locking.

[0020] The adjusting assembly 8 includes a lead screw 801 rotatably mounted on the mounting bracket 1. The sliding seat 7 has a threaded hole corresponding to the position of the lead screw 801. A spline shaft 802 is fixedly mounted on one end of the lead screw 801. The mounting bracket 1 has a second rotating hole 103 at the ends of both the spline shaft 802 and the lead screw 801. The spline shaft 802 and the lead screw 801 are connected to the second rotating hole 103 through bearings. By using the bearings provided, the friction force when the lead screw 801 rotates can be reduced, and the stability of the lead screw 801 during rotation can be improved.

[0021] The first drive assembly 9 includes a worm gear 901 splinedly connected to the splined shaft 802. A worm 902 meshes with the outer surface of the worm gear 901. A support block 101 is fixedly provided on the mounting bracket 1 at the position corresponding to the worm 902. A first rotation hole 102 is opened on the support block 101 at the position corresponding to the worm 902. The worm 902 is connected to the first rotation hole 102 through a bearing (a damping bearing, which absorbs and converts vibration energy to reduce vibration, thereby improving the operating efficiency and stability of the worm 902). A second drive assembly 10 for controlling its rotation is provided on the worm 902.

[0022] A insertion hole 9021 is provided at the center of the worm gear 902. The second drive assembly 10 includes an insertion rod 1001 that is inserted into the insertion hole 9021. The insertion rod 1001 has a hexagonal cross-section. The insertion hole 9021 is adapted to the insertion rod 1001. By utilizing the cooperation between the insertion rod 1001 and the insertion hole 9021, the insertion rod 1001 and the worm gear 902 can slide together, allowing the entire second drive assembly 10 to be hidden inside the mounting bracket 1. Simultaneously, the second drive assembly 10 can control the rotation of the worm gear 902. One end of the insertion rod 1001 is fixedly provided with... The rotating block 1002 has a handle 1003 slidably mounted on its outer surface, and spherical blocks 1004 are fixed at both ends of the handle 1003. When not in use, the second drive assembly 10 can be stored inside the mounting frame 1 to reduce protruding parts in the roadway, avoid collisions during personnel inspection or equipment maintenance, and reduce safety hazards. When in use, the second drive assembly 10 can be pulled out of the mounting frame 1, and the operating force required to rotate the worm gear 902 can be reduced by extending the lever arm, so that a single person can easily complete the tension adjustment. It is especially suitable for scenarios with narrow underground space and limited manual operation, reducing auxiliary working hours and labor intensity.

[0023] A side cover 104 is fixedly installed on the side of the mounting frame 1. The side cover 104 can be used to enclose the adjustment component 8, the first drive component 9 and the second drive component 10 inside the mounting frame 1. This can prevent dust from adhering to the adjustment component 8, the first drive component 9 and the second drive component 10, and reduce the number of protruding parts in the roadway when not in use. This can prevent collisions during personnel inspection or equipment maintenance, meet the inherent safety design requirements of underground coal mines, and reduce the risk of safety accidents.

[0024] The work process is as follows: S1: When it is necessary to adjust the tension of the conveyor belt 5, the grip lever 1003 is pulled outward through the side cover 104 on one side of the second drive assembly 10. Through the cooperation between the plug rod 1001 and the plug hole 9021, the grip lever 1003 can control the worm gear 902 to rotate. S2: When the worm 902 rotates, the worm wheel 901 meshes with the worm 902, allowing the worm wheel 901 to rotate. When the worm wheel 901 rotates, the spline connection between the worm wheel 901 and the spline shaft 802 allows the spline shaft 802 to drive the lead screw 801 to rotate. Thus, through the threaded hole provided on the sliding seat 7, the lead screw 801 can control the sliding seat 7 to slide on the mounting bracket 1, thereby adjusting the distance between the drive roller 2 and the tension roller 3. S3: The worm gear 901 and worm 902 mechanism has a high transmission ratio. When the worm gear 902 drives the worm wheel 901 to drive the lead screw 801 for fine adjustment, precise control of the position of the tensioning roller 3 can be achieved, avoiding over- or under-adjustment. At the same time, the self-locking characteristics of the worm gear 901 and worm 902 (the worm 902 can drive the worm wheel 901 to rotate, but the worm wheel 901 cannot drive the worm 902 to rotate in the opposite direction) can prevent the lead screw 801 from reversing due to vibration, load changes, or the tension reaction force of the conveyor belt 5, ensuring that the conveyor belt 5 remains stable after tensioning for a long time, effectively avoiding slippage, deviation, or decreased conveying efficiency caused by slack. S4: When not in use, the second drive assembly 10 can be stored inside the mounting frame 1 to reduce protruding parts in the roadway, avoid collisions during personnel inspection or equipment maintenance, and reduce potential safety hazards. When in use, the second drive assembly 10 can be pulled out of the mounting frame 1, and the operating force required to rotate the worm gear 902 can be reduced by extending the lever arm, so that a single person can easily complete the tension adjustment. It is especially suitable for scenarios with narrow underground space and limited manual operation, reducing auxiliary working hours and labor intensity.

[0025] The drive roller 2, tension roller 3, idler assembly 4, conveyor belt 5, drive device 6 and sliding seat 7 described in this application are all known technologies in this field, and therefore their specific structures and working principles are not described in detail.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An adjusting device for a mining belt conveyor, characterized in that: The device includes a mounting frame (1), inside which a drive roller (2) and a tension roller (3) are symmetrically arranged. Multiple idler roller assemblies (4) are fixedly installed between the drive roller (2) and the tension roller (3) on the mounting frame (1). A conveyor belt (5) is provided on the surface of the drive roller (2) and the tension roller (3). The multiple idler roller assemblies (4) are arranged on the inner side of the conveyor belt (5). A drive device (6) for controlling the rotation of the drive roller (2) is provided on the side of the mounting frame (1) near the drive roller (2). Both ends of the tensioning roller (3) are provided with sliding seats (7), and both sliding seats (7) are slidably connected to the mounting frame (1). The mounting frame (1) is provided with an adjustment component (8) for controlling the sliding seats (7) to slide. One end of the adjustment component (8) is provided with a first drive component (9) for controlling its operation and self-locking. The first drive component (9) is provided with a second drive component (10) for controlling its operation and being housed inside the mounting frame (1).

2. The adjusting device for a mining belt conveyor according to claim 1, characterized in that: The adjustment assembly (8) includes a lead screw (801) rotatably mounted on the mounting bracket (1), and the sliding seat (7) has a threaded hole that matches the position of the lead screw (801). One end of the lead screw (801) is fixedly provided with a spline shaft (802).

3. The adjusting device for a mining belt conveyor according to claim 2, characterized in that: The first drive assembly (9) includes a worm gear (901) splinedly connected to the spline shaft (802), and a worm (902) meshes with the outer surface of the worm gear (901).

4. The adjusting device for a mining belt conveyor according to claim 3, characterized in that: The worm gear (902) has a insertion hole (9021) at its center. The second drive assembly (10) includes a insertion rod (1001) that is inserted into the insertion hole (9021). A rotating block (1002) is fixedly provided at one end of the insertion rod (1001). A grip (1003) is slidably provided on the outer surface of the rotating block (1002). Both ends of the grip (1003) are fixedly provided with spherical blocks (1004).

5. The adjusting device for a mining belt conveyor according to claim 3, characterized in that: The mounting bracket (1) is fixedly provided with a support block (101) at the position corresponding to the worm (902). The support block (101) is provided with a first rotating hole (102) at the position corresponding to the worm (902). The worm (902) is connected to the first rotating hole (102) through a bearing.

6. The adjusting device for a mining belt conveyor according to claim 2, characterized in that: The mounting bracket (1) has a second rotating hole (103) at the end of the spline shaft (802) and the lead screw (801). The spline shaft (802) and the lead screw (801) are connected to the second rotating hole (103) through bearings. A side cover (104) is fixedly installed on the side of the mounting bracket (1).

7. The adjusting device for a mining belt conveyor according to claim 4, characterized in that: The cross-sectional shape of the plug rod (1001) is hexagonal, and the plug hole (9021) is adapted to the plug rod (1001).

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