Coal flow adjusting device for guide chute of coal conveying system

Abstract

The utility model provides a coal flow adjusting device for a guide chute of a coal conveying system, which relates to the technical field of coal conveying systems, and comprises a coal adjusting plate, a screw rod and a rotating shaft, the coal adjusting plate is arranged on the inner side of the guide chute, the rotating shaft is arranged on the coal adjusting plate, the coal adjusting plate is rotatably connected with the guide chute through the rotating shaft, the screw rod penetrates through the guide chute, and the screw rod penetrates through the guide chute. One end of the lead screw is rotatably hinged to the side face of the coal adjusting plate, the other end of the lead screw is connected with the rotary driving device, the lead screw is in threaded fit with the guide groove, the coal adjusting plate is pushed to rotate around the rotary shaft by rotating the lead screw, and then the section size and the outlet position of a channel in the guide groove are changed. The stability of coal flow conveying of the small-fall coal falling pipe is achieved, and the reliability of long-time operation of a lower-level conveying belt is improved and guaranteed. The structure is simple, the manufacturing cost is low, and the operation is convenient and flexible; and meanwhile, impact of materials on the guide groove is reduced, and later overhaul and maintenance are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of coal conveying system technology, and in particular to a coal flow regulating device for a coal conveying system feed trough. Background Technology

[0002] In coal conveying systems, insufficient height difference between the upper and lower conveyor belts often limits the length of the coal chute, making it difficult to install traditional material regulators. In existing technologies, wet coal easily adheres to the coal chute wall, causing problems such as material drop point misalignment, belt misalignment, and accelerated wear. Although there are technical solutions involving installing coal regulating plates via guide chutes, these generally suffer from the following drawbacks:

[0003] 1. The regulating mechanism is prone to screw jamming due to coal dust blockage;

[0004] 2. The positioning accuracy of the coal adjusting plate is low, making it difficult to keep the material drop point centered for a long time;

[0005] 3. Components wear out quickly and require frequent maintenance.

[0006] Therefore, there is an urgent need for a coal flow regulation device that is highly reliable, flexible in adjustment, and adaptable to confined spaces. Utility Model Content

[0007] The purpose of this invention is to provide a coal flow regulating device for a coal conveying system guide trough, so as to achieve precise coal flow guidance under the conditions of short coal drop pipe and small drop.

[0008] This utility model is achieved using the following technical solution: a coal flow regulating device for a coal conveying system guide trough, comprising a coal adjusting plate, a lead screw, and a rotating shaft. The coal adjusting plate is disposed inside the guide trough, and a rotating shaft is disposed on the coal adjusting plate and rotatably connected to the guide trough via the rotating shaft. The lead screw passes through the guide trough, with one end of the lead screw rotatably hinged to the side of the coal adjusting plate and the other end connected to a rotary drive device. The lead screw and the guide trough are threaded together. By rotating the lead screw, the coal adjusting plate is pushed to rotate around the rotating shaft, thereby changing the cross-sectional size and outlet position of the passage within the guide trough.

[0009] Furthermore, a bushing is provided on the guide trough, and the rotating shaft is rotatably connected to the guide trough through the bushing.

[0010] Furthermore, the rotary drive device is a handwheel, which is fixedly connected to the lead screw.

[0011] Furthermore, there are two coal adjusting plates, which are respectively arranged symmetrically on both sides of the feed chute.

[0012] Furthermore, a connecting nut is installed on the feed chute, and the lead screw is threadedly engaged with the connecting nut.

[0013] Furthermore, the rotating shaft is located at the upper end of the coal adjusting plate, and the lead screw is connected below the middle of the coal adjusting plate, thereby reducing the operating torque.

[0014] Furthermore, the lead screw adopts a trapezoidal thread to ensure that it will not slip during frequent use.

[0015] The coal flow regulating device for a coal conveying system guide trough described in this utility model has the following beneficial effects:

[0016] This design achieves stable coal flow conveying through a small drop chute, improving and ensuring the reliability of downstream conveyor belts during long-term operation. It features a simple structure, low manufacturing cost, and flexible operation; simultaneously, it reduces material impact on the feed chute, facilitating subsequent inspection and maintenance. Attached Figure Description

[0017] 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. 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a coal flow regulating device for a coal conveying system's feed trough.

[0019] Figure 2 A top view schematic diagram of a coal flow regulating device in a coal conveying system's feed trough;

[0020] In the diagram, 1-feed chute, 2-coal adjusting plate, 3-handwheel, 4-screw, 5-belt conveyor, 6-shaft sleeve, 7-rotating shaft. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] like Figure 1-2 As shown, a coal flow regulating device for a coal conveying system includes a coal adjusting plate 2, a lead screw 4, and a rotating shaft 7. The coal adjusting plate 2 is disposed inside the material conveying trough 1. The rotating shaft 7 is mounted on the coal adjusting plate 2 and is rotatably connected to the material conveying trough 1 via the rotating shaft 7. The lead screw 4 passes through the material conveying trough 1. One end of the lead screw 4 is rotatably hinged to the side of the coal adjusting plate 2, and the other end is connected to a rotary drive device. The lead screw 4 is threadedly engaged with the material conveying trough 1. Rotating the lead screw 4 drives the coal adjusting plate 2 to rotate around the rotating shaft 7, thereby changing the cross-sectional size and outlet position of the passage within the material conveying trough 1.

[0024] A bushing 6 is provided on the guide trough 1, and the rotating shaft 7 is rotatably connected to the guide trough 1 through the bushing 6.

[0025] The rotary drive device is a handwheel 3, which is fixedly connected to the lead screw 4.

[0026] There are two coal adjusting plates 2, which are respectively set on both sides of the feed chute 1 and arranged symmetrically.

[0027] A connecting nut is installed on the feed trough 1, and the lead screw 4 is threadedly engaged with the connecting nut.

[0028] The rotating shaft 7 is located at the upper end of the coal adjusting plate 2, and the lead screw 4 is connected below the middle of the coal adjusting plate 2, thereby reducing the operating torque.

[0029] The lead screw 4 uses a trapezoidal thread to ensure that it will not slip during frequent use.

[0030] This device solves the problem of misaligned material drop points caused by small drop heights in the coal chute and sticky coal. It effectively ensures the normal operation of the belt conveyor and eliminates the need for maintenance personnel to frequently clean the coal chute to adjust for belt misalignment. It achieves stable coal flow transport in coal chute systems with small drop heights, improving and ensuring the reliability of downstream conveyor belts over long periods. Its simple structure, low manufacturing cost, and convenient operation offer flexibility; it also reduces the impact of material on the feed chute, facilitating later maintenance and repair.

[0031] The above embodiments describe 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. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A coal flow regulating device for a coal flow guide chute of a coal conveying system, characterized in that, The device comprises a coal adjusting plate (2), a screw rod (4) and a rotating shaft (7), the coal adjusting plate (2) is arranged inside the material guiding groove (1), the rotating shaft (7) is arranged on the coal adjusting plate (2) and is rotatably connected with the material guiding groove (1) through the rotating shaft (7), the screw rod (4) passes through the material guiding groove (1), one end of the screw rod (4) is rotatably connected with the side of the coal adjusting plate (2), the other end is connected with a rotating driving device, the screw rod (4) is threadedly connected with the material guiding groove (1), the rotating of the coal adjusting plate (2) around the rotating shaft (7) is realized by rotating the screw rod (4), and then the cross section size of the passage in the material guiding groove (1) and the outlet position are changed.

2. The coal flow regulating device of the coal guide chute of the coal conveying system according to claim 1, characterized in that, The material guiding groove (1) is provided with a shaft sleeve (6), and the rotating shaft (7) is rotatably connected with the material guiding groove (1) through the shaft sleeve (6).

3. The coal flow regulating device of the coal guide chute of the coal conveying system according to claim 2, characterized in that, The rotating driving device is a hand wheel (3), and the hand wheel (3) is fixedly connected with the screw rod (4).

4. The coal flow regulating device of the coal guide chute of the coal conveying system according to claim 2, characterized in that, The coal adjusting plate (2) has two, which are symmetrically arranged on both sides of the material guiding groove (1).

5. The coal flow regulating device of the coal guide chute of the coal conveying system according to claim 2, characterized in that, The material guiding groove (1) is provided with a connecting nut, and the screw rod (4) is threadedly connected with the connecting nut.

6. The coal flow regulating device of the coal guide chute of the coal conveying system according to claim 2, characterized in that, The rotating shaft (7) is arranged on the upper end of the coal adjusting plate (2), and the screw rod (4) is connected below the middle part of the coal adjusting plate (2), so that the operation torque is reduced.

7. The coal flow regulating device of the coal guide chute of the coal conveying system according to claim 2, characterized in that, The screw rod (4) adopts ladder thread, which can ensure frequent use without causing thread slipping.

Images