Adjustable coal blocking device for fully mechanized excavation face

Abstract

The utility model discloses a fully mechanized excavation face adjustable coal blocking device which comprises a rectangular installation frame, the rear side of the installation frame is fixedly connected with a connecting plate used for being connected with a reversed loader head, the inner side face of the upper side of the installation frame is rotationally connected with a coal blocking plate, and the lower portion of the outer side face of the coal blocking plate is rotationally connected with a strip-shaped adjusting plate. A zigzag notch is formed in the lower side end of the adjusting plate and used for being connected to the upper edge of the lower side of the mounting frame in a clamped mode, the lower portion of the inner side face of the coal blocking plate is fixedly connected with a coal blocking rubber plate, and the coal blocking rubber plate extends to the outer side of the lower edge of the coal blocking plate. The device can effectively reduce the problems of belt coal leakage and coal suffocation at the tail, so that the stability and the transportation efficiency of the coal flow of the whole working face are improved, the tedious steps of manual operation are reduced, and the labor intensity is reduced. Through the optimized coal blocking design, abnormal deviation or splashing of coal flow is effectively avoided, potential safety hazards caused by coal briquette scattering or coal leakage are reduced, and the operation safety of workers is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of belt conveyor equipment in coal mine mining faces, specifically relating to an adjustable coal retaining device for fully mechanized tunneling faces. Background Technology

[0002] The connection point between the transfer conveyor and the belt conveyor in a fully mechanized tunneling face uses fixed coal retaining plates and belts on both sides. These plates cannot move independently and can only move rigidly along with the transfer conveyor. This often leads to severe coal leakage and coal accumulation at the tail of the conveyor during lateral swaying, uphill or downhill movement, tunneling, and belt misalignment. Manual belt clamping is required, increasing labor intensity and posing significant safety hazards. Therefore, this study investigates and applies an adjustable coal retaining device to achieve coordination and unity between the transfer conveyor's coal retaining device and the belt conveyor, ensuring a comprehensive improvement in efficiency, effectiveness, and safety. Utility Model Content

[0003] To address the technical problems of severe coal leakage and coal blockage at the tail of the conveyor belt at the junction of the transfer machine and the conveyor belt in the existing technology, this utility model provides an adjustable coal blocking device for the tunneling face, which realizes the coal discharge connection between the transfer machine and the conveyor belt.

[0004] The present invention adopts the following technical solution: an adjustable coal retaining device for a fully mechanized tunneling face, comprising a rectangular mounting frame, a connecting plate for connecting a transfer machine head fixedly connected to the rear side of the mounting frame, a coal retaining plate rotatably connected to the upper inner side of the mounting frame, a strip-shaped adjusting plate rotatably connected to the lower part of the outer side of the coal retaining plate, a serrated notch provided at the lower end of the adjusting plate for engaging with the upper edge of the lower side of the mounting frame, and a coal retaining rubber plate fixedly connected to the lower part of the inner side of the coal retaining plate, the coal retaining rubber plate extending to the outer side of the lower edge of the coal retaining plate.

[0005] Furthermore, the mounting frame is plate-shaped with a rectangular hole in the middle, the size of which is the same as that of the coal retaining plate.

[0006] Furthermore, the connecting plate is provided with multiple through holes, and the connecting plate is connected and fixed to the transfer machine head by connecting bolts.

[0007] Furthermore, the notch of the adjustment plate consists of a snap-fit ​​edge and a sliding edge. The snap-fit ​​edge snaps into the inner side of the upper edge of the lower side of the mounting frame, and the angle between the snap-fit ​​edge and the mounting frame is smaller than the angle between the sliding edge and the mounting frame.

[0008] Furthermore, the upper part of the coal retaining rubber sheet is fixedly connected to the lower part of the coal retaining plate by bolts.

[0009] Furthermore, the width of the coal retaining rubber sheet extends to the outside of the mounting frame on both sides, and the lower edge of the coal retaining rubber sheet extends downward to near the belt of the conveyor belt.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The adjustable coal retaining device allows for precise control of the distance between the coal retaining plate and the belt conveyor, avoiding coal leakage caused by the inability to adjust the coal retaining plate independently in traditional devices. The serrated notch design of the adjusting plate makes the adjustment of the coal retaining plate more flexible, enabling precise alignment with the belt conveyor and ensuring smooth coal flow into the belt, reducing coal leakage.

[0012] 2. By properly adjusting the distance between the coal retaining plate and the belt, coal flow can be prevented from stagnating at the junction of the transfer machine and the belt, thus effectively preventing coal blockage at the tail end of the machine. When the coal retaining rubber plate comes into contact with the coal flow, it can act as a buffer, preventing coal chunks from splashing and ensuring that the coal flow is smoothly transmitted to the belt conveyor.

[0013] 3. This device employs a serrated notch adjustment plate with a snap-fit ​​and sliding edge design, allowing the adjustment plate to easily slide under the mounting frame to adjust the distance of the coal retaining plate. The adjustment process is simple and labor-saving, reducing the intensity of manual operation and improving work efficiency. In particular, during operation, the coal retaining plate can be easily and quickly adjusted, avoiding the hassle of frequent manual adjustments.

[0014] 4. By adjusting the angle between the adjusting plate and the mounting frame, a secure connection is ensured, making the coal retaining plate stable and reliable during operation, and preventing it from shifting. Even when the working face environment changes significantly or the transfer machine oscillates, the coal retaining plate can maintain its effective coal-blocking function.

[0015] 5. This device effectively reduces coal leakage from the conveyor belt and coal stagnation at the tail end, thereby improving the stability and transportation efficiency of the overall coal flow at the working face. It also reduces tedious manual operations, thus lowering labor intensity. Through optimized coal-blocking design, it effectively prevents abnormal deviations or splashing of the coal flow, reducing safety hazards caused by coal scattering or leakage, and ensuring worker safety. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a side view of the present invention.

[0019] In the diagram: 1-installation frame, 2-connecting plate, 3-coal retaining plate, 4-adjusting plate, 41-notch, 5-coal retaining rubber plate, 6-connecting bolt, 7-belt on the conveyor belt. Detailed Implementation

[0020] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an adjustable coal retaining device for a fully mechanized tunneling face.

[0021] like Figures 1-3 As shown, an adjustable coal-blocking device for a fully mechanized tunneling face includes a rectangular mounting frame 1. A connecting plate 2 for connecting a transfer machine head is vertically connected to the rear side of the mounting frame 1. A coal-blocking plate 3 is rotatably connected to the upper inner side of the mounting frame 1. A strip-shaped adjusting plate 4 is rotatably connected to the lower part of the outer side of the coal-blocking plate 3. A serrated notch 41 is provided at the lower end of the adjusting plate 4 for engaging with the upper lower edge of the mounting frame 1. A coal-blocking rubber plate 5 is fixedly connected to the lower part of the inner side of the coal-blocking plate 3, and the coal-blocking rubber plate 5 extends to the outer side of the lower edge of the coal-blocking plate 3.

[0022] In this embodiment, the mounting frame 1 is formed by cutting a rectangular coal retaining plate 3 from a rectangular steel plate. The connecting plate 2 has multiple through holes and is fixed to the transfer machine head via connecting bolts 6. The notch 41 of the adjusting plate 4 consists of a snap-fit ​​edge and a sliding edge. The snap-fit ​​edge snaps into the inner side of the upper edge of the lower side of the mounting frame. The angle between the snap-fit ​​edge and the mounting frame 1 is much smaller than the angle between the sliding edge and the mounting frame 1, ensuring that the adjusting plate 1 is firmly and stably snapped into the mounting frame 1, and can also be easily and effortlessly adjusted by sliding along the upper edge of the lower side of the mounting frame 1. This is especially convenient during operation. The upper part of the coal retaining rubber plate 5 is fixedly connected to the lower part of the coal retaining plate 3 via bolts. The width of the coal retaining rubber plate 5 extends to the outer side of the mounting frame 1 on both sides, and the lower edge of the coal retaining rubber plate 5 extends downwards to near the belt 7 of the conveyor belt. The coal-blocking rubber plate 5 comes into contact with the coal flow and can play a certain buffering role to prevent coal chunks from splashing. The coal-blocking rubber plate 5 has a certain degree of flexibility and bends to both sides of the belt 7 on the conveyor belt along with the coal flow. It does not affect the effective width between the coal blocks on both sides, and can smoothly and accurately guide the coal flow onto the belt 7 on the conveyor belt to avoid coal stagnation at the tail of the machine.

[0023] In use, by adjusting the relative positions of the adjusting plate 4 and the mounting frame 1, the distance between the coal blocking plate 3 and the mounting frame 1 is reasonably adjusted to achieve the coal blocking effect at the head of the transfer conveyor, prevent serious coal leakage, and achieve coal discharge connection between the transfer conveyor and the belt. By applying this adjustable coal blocking device for the fully mechanized tunneling face, the coal blocking device of the transfer conveyor and the belt can be coordinated and unified, reducing coal leakage from the belt and reducing the labor intensity of workers.

[0024] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An adjustable coal-stopping device for a fully mechanized tunneling face, characterized in that, The system includes a rectangular mounting frame (1), a connecting plate (2) for connecting the transfer machine head is fixedly connected to the rear side of the mounting frame (1), a coal retaining plate (3) is rotatably connected to the upper inner side of the mounting frame (1), a strip-shaped adjusting plate (4) is rotatably connected to the lower part of the outer side of the coal retaining plate (3), and a sawtooth notch (41) is provided at the lower end of the adjusting plate (4) for engaging with the upper edge of the lower side of the mounting frame (1). A coal retaining rubber plate (5) is fixedly connected to the lower part of the inner side of the coal retaining plate (3), and the coal retaining rubber plate (5) extends to the outer side of the lower edge of the coal retaining plate (3).

2. The adjustable coal retaining device for fully mechanized tunneling faces according to claim 1, characterized in that, The mounting frame (1) is plate-shaped with a rectangular hole in the middle, and the size of the rectangular hole is the same as that of the coal retaining plate (3).

3. The adjustable coal retaining device for fully mechanized tunneling faces according to claim 1, characterized in that, The connecting plate (2) has multiple through holes and is connected and fixed to the transfer machine head by connecting bolts (6).

4. The adjustable coal retaining device for fully mechanized tunneling faces according to claim 1, characterized in that, The notch (41) of the adjustment plate (4) consists of a snap-fit ​​edge and a sliding edge. The snap-fit ​​edge snaps onto the inner side of the upper edge of the lower side of the mounting frame (1). The angle between the snap-fit ​​edge and the mounting frame (1) is smaller than the angle between the sliding edge and the mounting frame (1).

5. The adjustable coal retaining device for fully mechanized tunneling faces according to claim 1, characterized in that, The upper part of the coal retaining rubber plate (5) is fixedly connected to the lower part of the coal retaining plate (3) by bolts.

6. The adjustable coal retaining device for a fully mechanized tunneling face according to claim 1 or 5, characterized in that, The width of the coal retaining rubber plate (5) extends to the outside of the mounting frame (1) on both sides, and the lower edge of the coal retaining rubber plate (5) extends downward to near the belt (7) on the conveyor belt.

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