A filling type flight unloading middle trough

Abstract

The utility model discloses a kind of filling type scraper machine unloading middle tank, it relates to mine conveying equipment technical field, it includes middle tank body and unloading device, the middle tank body is equipped with unloading port, the unloading port includes middle unloading port and side unloading port, and the middle unloading port and two side unloading port are separated by guide rib plate;The unloading device includes drive unit and the movable plugboard connected with the drive unit, the movable plugboard is slidably connected below the unloading port;The both sides of the middle tank body are respectively provided with sliding groove, the movable plugboard is slidably connected in the sliding groove, and is limited by the guide rib plate. By this, the utility model is equipped with guide rib plate in the middle of unloading port, not only can change the size of unloading port, avoid scraping card, but also can guide movable plugboard, improve the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of mine conveying equipment technology, specifically to a filling scraper conveyor unloading trough. Background Technology

[0002] With the continuous development of coal mining technology, the requirements for mining efficiency and safety are also getting higher and higher.

[0003] Traditional mining methods often lead to the formation of goafs, which not only reduces mining efficiency but also threatens the safety of coal mine production. To ensure the safety of coal mining, backfill mining technology has been widely promoted and applied. Backfill mining is a coal mining technology that controls the movement of rock strata by filling the goaf with materials. Its core principle is to reduce surface subsidence and protect surface structures through the coupling effect between the backfill and the overlying rock.

[0004] The two technical operations of backfilling and coal mining often affect each other. In order to ensure the balanced development of coal mining and backfilling, it is necessary to use conveying equipment such as central troughs to transport a certain amount of backfill materials such as river sand, gangue, and fly ash to the core area. Due to the limitations of the width and opening size of the central trough, it is generally necessary to adjust and control the opening size of the material drop outlet in order to ensure stable conveying.

[0005] In the prior art, there is a patent document with publication number CN210824000U, entitled "A Scraper Conveyor for Coal Mines." This document describes a method that controls the scraper's movement distance and thus the opening size of the material discharge port by setting up a head and tail section to drive the scraper chain. However, due to the scraper chain's poor wear resistance and the lack of a guiding function, the scraper will significantly deform or even break after a period of use, posing a significant safety hazard and resulting in poor performance. Utility Model Content

[0006] To overcome the above-mentioned defects, the purpose of this utility model is to provide a discharge center trough for a filling scraper conveyor, which can change the size of the discharge port, avoid scraping and jamming, and guide the movable insert plate, thereby improving the service life of the equipment.

[0007] To achieve the above objectives, this utility model provides a central unloading trough for a filling scraper conveyor, characterized in that it comprises: a central trough body and an unloading device; the central trough body has an unloading port, which includes a central unloading port and two side unloading ports, and the central unloading port and the two side unloading ports are separated by guide ribs; the unloading device includes a drive unit and a movable insert plate connected to the drive unit, the movable insert plate being slidably connected to the lower part of the unloading port; and sliding grooves are respectively provided on both sides of the central trough body, the movable insert plate being slidably connected to the sliding grooves and limited by the guide ribs.

[0008] Preferably, both the central discharge port and the side discharge port are provided with discharge chamfers along their length, and the bottom of the discharge chamfers is flush with the guide rib plate.

[0009] Preferably, the upper end face of the movable insert plate is provided with an upper chamfer, and the lower end face of the movable insert plate is provided with a lower chamfer, and the length of the lower chamfer is greater than the length of the upper chamfer.

[0010] Preferably, the movable insert plate has a hoisting hole in the middle.

[0011] Preferably, the drive unit includes a bidirectional piston rod and a dual-output cylinder. The end of the bidirectional piston rod is hinged to the central groove body, the dual-output cylinder is slidably connected to the bidirectional piston rod, and the movable insert plate is fixedly connected to the cylinder body of the dual-output cylinder through a connecting plate.

[0012] Preferably, a protective cover is also fixed on the central groove body, and the protective cover is located on the upper part of the drive unit.

[0013] The beneficial technical effects achieved by this utility model after adopting the above technical solution are as follows:

[0014] 1. Because the discharge port is equipped with guide ribs, which divide the discharge port into a central discharge port and a side discharge port, the problem of scraper chain jamming when material accumulates in a large discharge port in the traditional structure is solved. It can also avoid jamming when the material volume is too large, so the equipment operation will be safer.

[0015] 2. Since the movable slide plate is directly connected to the double-output cylinder, the opening or closing of the discharge port is achieved through the movement of the cylinder body of the double-output cylinder, resulting in higher transmission efficiency. In addition, the lower chamfer of the lower end face of the movable slide plate is wider, and the larger chamfer transition makes it less likely to get stuck during movement, resulting in less travel resistance and preventing scraping caused by the jumping of the lower scraper chain.

[0016] 3. A protective cover is installed on the upper part of the power unit to block the impact of gangue and ensure the safe operation of the power unit. Attached Figure Description

[0017] Figure 1 This is a top view reference diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main view of this utility model;

[0019] Figure 3 yes Figure 2 The left view;

[0020] Figure 4 yes Figure 2 A sectional view at point AA;

[0021] Figure 5 This is a front view of the movable insert plate of this utility model;

[0022] Figure 6 yes Figure 5 Top view;

[0023] In the diagram,

[0024] 1. Central trough body; 11. Discharge port; 111. Discharge chamfer; 12. Guide ribs; 13. Slide chute;

[0025] 2. Unloading device; 21. Movable insert plate; 211. Lifting hole; 212. Upper chamfer; 213. Lower chamfer;

[0026] 3. Drive unit; 31. Bidirectional piston rod; 32. Dual output cylinder; 33. Protective cover. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0028] See Figures 1-6 This utility model provides a discharge center trough for a filling scraper conveyor, comprising: a center trough body 1 and a discharge device 2. The center trough body 1 has a discharge port 11, which includes a center discharge port 11 and side discharge ports 11, separated from the side discharge ports 11 by guide ribs 12. The center trough body 1, as the main conveying structure, generally needs to be used in conjunction with a scraper chain and scrapers, and is existing technology, playing a crucial role in conveying equipment. During processing, a large discharge port 11 is first opened on the center trough body 1, and the large discharge port 11 is divided into a center discharge port 11 and two side discharge ports 11 by welding guide ribs 12.

[0029] The unloading device 2 includes a drive unit 3 and a movable insert plate 21 connected to the drive unit 3. The movable insert plate 21 is slidably connected to the lower part of the unloading port 11. Slide grooves 13 are respectively provided on both sides of the central trough body 1. The movable insert plate 21 is slidably connected to the slide grooves 13, and its upper end is limited by a guide rib plate 12. The guide rib plate 12 has two functions: one is to divide the unloading port 11 and control the amount of material falling; the other is to guide the movable insert plate 21, especially the scraper chain (not shown in the figure) in the central trough, to prevent it from jumping too much. Figure 1In the middle section, the width of the guide rib plate 12 at both ends is smaller than that at the middle section, which is used to increase the material dropping area and facilitate material dropping. The movable insert plate 21 itself has a large rigidity. Its two ends are limited within the slide groove 13, and its upper end is limited by the guide rib plate 12. The power for its movement comes from the drive unit 3. The position of the movable insert plate 21 is controlled by the drive unit 3 to control the opening size of the discharge port 11.

[0030] The drive unit 3 is generally a drive cylinder or a drive motor, preferably a drive cylinder. Since reciprocating motion is required, a bidirectional piston rod 31 and a double-output cylinder 32 are needed. The end of the bidirectional piston rod 31 is hinged to the central groove body 1, and the double-output cylinder 32 is slidably connected to the bidirectional piston rod 31. The movable insert plate 21 is fixedly connected to the cylinder body of the double-output cylinder 32 via a connecting plate. The cylinder body of the double-output cylinder 32 is fixedly connected to the movable insert plate 21, and its movement time and distance are controlled by hydraulic pressure. Multiple position sensors and limit blocks are generally also installed to ensure safe operation of the equipment and to achieve automated control. The bidirectional piston rod 31 and the double-output cylinder 32 are existing technologies and can be directly purchased and processed according to the model.

[0031] Both the central discharge port 11 and the side discharge port 11 of this utility model are provided with discharge chamfers 111 along their length, and the bottom of the discharge chamfers 111 is flush with the guide rib plate 12. The discharge chamfers 111 are used to increase the area, which not only facilitates material guidance but also prevents material from getting stuck. The bottom of the discharge chamfers 111 is flush with the guide rib plate 12, which better limits the movable insert plate 21 without hindering its movement.

[0032] See Figure 5 and Figure 6 The movable insert plate 21 of this invention has an upper chamfer 212 on its upper end face and a lower chamfer 213 on its lower end face, with the length of the lower chamfer 213 being greater than the length of the upper chamfer 212. Since various types of materials are conveyed, increasing the width of the lower chamfer 213 reduces resistance during movement, especially further reducing the risk of jamming. According to actual testing, the upper chamfer 212 can be a traditional 45° chamfer, while the lower chamfer 213 is extended, typically with an angle of 15°-25°, preferably 15°.

[0033] The movable insert plate 21 of this utility model has a lifting hole 211 in the middle. The movable insert plate 21 is relatively large. During installation, it is connected to the auxiliary lifting equipment through the lifting hole 211 before installation.

[0034] A protective cover 33 is also fixedly provided on the central tank body 1 of this utility model. The protective cover 33 is located on the upper part of the drive unit 3. The protective cover 33 is used to protect the drive unit 3, especially the dual output cylinder 32, to prevent it from being damaged by gangue.

[0035] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A discharge trough for a filling scraper conveyor, characterized in that, include: The central tank body and the unloading device are provided. The central tank body is provided with an unloading port, which includes a central unloading port and two side unloading ports. The central unloading port and the two side unloading ports are separated by guide ribs. The unloading device includes a drive unit and a movable insert plate connected to the drive unit, the movable insert plate being slidably connected below the unloading port; The central groove body has sliding grooves on both sides, the movable insert plate is slidably connected to the sliding grooves and limited by the guide rib plate.

2. The unloading trough of the filling scraper conveyor according to claim 1, characterized in that, Both the central discharge port and the side discharge port are provided with discharge chamfers along their length, and the bottom of the discharge chamfers is flush with the guide rib plate.

3. The unloading center trough of the filling scraper conveyor according to claim 2, characterized in that, The upper end face of the movable insert plate is provided with an upper chamfer, and the lower end face of the movable insert plate is provided with a lower chamfer, and the length of the lower chamfer is greater than the length of the upper chamfer.

4. The unloading trough of the filling scraper conveyor according to claim 1, characterized in that, The movable insert plate has a hoisting hole in the middle.

5. The unloading trough of the filling scraper conveyor according to claim 1, characterized in that, The drive unit includes a bidirectional piston rod and a dual-output cylinder. The end of the bidirectional piston rod is hinged to the central groove body, and the dual-output cylinder is slidably connected to the bidirectional piston rod. The movable insert plate is fixedly connected to the cylinder body of the dual-output cylinder through a connecting plate.

6. The unloading trough of the filling scraper conveyor according to claim 5, characterized in that, A protective cover is also fixed on the central groove body, and the protective cover is located on the upper part of the drive unit.

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