Coal mine railway automated loading device

Abstract

The utility model relates to a coal mine railway automatic loading device relates to material conveying device field, including frame body, which is equipped with ration bin and bifurcated chute from top to bottom, is equipped with flat gate between ration bin and bifurcated chute, two blocks of gate are horizontally opposite and are equipped with in flat gate, and the outside both sides are equipped with containing bin, and the outside both sides of two containing bins are equipped with support piece, and the outside both sides of two support pieces are equipped with telescopic cylinder, and the telescopic rod of two telescopic cylinders is set up and moves reversely horizontally, and the lateral wall that containing bin is connected with support piece is equipped with extension bar and moves horizontally and seals in, and one end of extension bar is connected with telescopic rod, and the other end passes through support piece and is connected with gate in containing bin, and one side of telescopic cylinder is equipped with detection rod, and one end of detection rod is located in containing bin and is connected with corresponding gate, and the other end one side is equipped with sensor assembly that can limit its limit moving position. Through support piece and extension bar, make telescopic rod and containing bin realize physical isolation, and through sensor assembly accurate limit gate limit position, improve telescopic rod moving stability.

Description

Technical Field

[0001] This utility model relates to the field of material transportation devices, specifically an automated loading device for coal mine railways. Background Technology

[0002] In current coal mine production scenarios, the core structure of the loading station typically includes a buffer bin, a quantitative bin, and a branch chute, which are arranged sequentially from top to bottom on the frame. The coal material transportation process is as follows: it first enters through the buffer bin, then completes quantitative batching through the quantitative bin, and finally achieves diversion and unloading through the branch chute.

[0003] The discharge port on the lower side of the quantitative silo is equipped with a discharge mechanism that is connected to the bifurcation chute. The core function of this mechanism is to close and open the discharge port before and after batching, so as to precisely control the material conveying rhythm. In the prior art, such discharge mechanisms often adopt the new type of hydraulic flat gate for loading stations disclosed in patent publication number CN202296437U. Its specific structure includes an annular frame that is connected to the quantitative silo and the bifurcation chute vertically, and two receiving silos arranged horizontally opposite to each other on both sides of the annular frame. Inside the annular frame, two gate plates are arranged horizontally opposite to each other. On the outside of the two receiving silos, hydraulic cylinders are also installed horizontally, and the output ends of the two hydraulic cylinders are arranged in opposite directions. After passing through the corresponding receiving silos, their output ends are connected to the two gate plates one by one.

[0004] The working principle of this hydraulic flat gate is as follows: During the batching stage, the output ends of the two oil cylinders extend, driving the two gate plates to move closer to each other and overlap on one side. At this time, the discharge port is in a closed state. After the batching is completed, the output ends of the two oil cylinders retract, driving the two gate plates to move away from each other, and the discharge port opens accordingly. The coal and mineral materials can then enter the branch chute through the discharge port.

[0005] However, although the storage chamber is designed as a closed chamber, during the opening and closing of the discharge port, one end of the gate will move in and out of the storage chamber synchronously with the output end of the hydraulic cylinder. Since the gate needs to withstand the impact of the coal mine and is in direct contact with the coal mine, it is difficult to seal and has poor sealing performance. It is easy to bring coal mine impurities into the storage chamber. Long-term use will cause the environment inside the chamber to be polluted, which will affect the normal service life of the hydraulic cylinder piston rod. Utility Model Content

[0006] To address the technical problems existing in the background art, this utility model provides an automated loading device for coal mine railways.

[0007] The technical solution of this utility model is as follows: An automated loading device for coal mine railways includes a frame with a quantitative bin and a branch chute arranged on the frame. A flat gate is provided between the quantitative bin and the branch chute. Two gate plates are arranged horizontally opposite each other inside the flat gate. There are receiving bins on both sides of the outside. The structure above is existing technology and will not be described in detail here.

[0008] As the core technical concept of this utility model, the two receiving chambers are respectively provided with support members on the outside, and telescopic cylinders are respectively provided on the outside of the two support members. The telescopic rods of the two telescopic cylinders are arranged to move laterally in opposite directions. An extension rod is provided laterally in a movable seal on the side wall of the receiving chamber connected to the support member. One end of the extension rod is connected to the telescopic rod, and the other end is connected to the gate plate inside the receiving chamber. A detection rod is also provided on one side of the telescopic cylinder. One end of the detection rod is located inside the receiving chamber and is connected to the corresponding gate plate. A sensor assembly that can limit its extreme movement position is provided on one side of the other end.

[0009] Furthermore, the support member is a frame structure with its central part arranged in a direction perpendicular to the axis of the telescopic rod.

[0010] Furthermore, the detection rod is parallel to the telescopic rod, and its middle part is laterally movable to the wall of the receiving compartment.

[0011] Preferably, the sensor assembly uses a non-contact detection method.

[0012] In one implementation, the sensor assembly includes a bracket located outside the housing and a position sensor mounted on it.

[0013] Furthermore, the bracket and the detection rod are arranged parallel to each other, and two position sensors are spaced apart.

[0014] Furthermore, the support bracket is also equipped with a support block, and the detection rod slides in conjunction with the support block.

[0015] Furthermore, the two gates, on opposite sides, are laterally connected to the side walls of the warehouse.

[0016] As one implementation, a connecting sleeve is provided on the outer side of the opposite end of the extension rod and the telescopic rod, and the threads of the extension rod and the telescopic rod are screwed together with the connecting sleeve at opposite directions.

[0017] Furthermore, the container is sealed with a removable sealing plate.

[0018] This utility model, through an innovative design of the receiving chamber and support component, combined with an extension rod that is movably and sealed through the side wall connecting the receiving chamber and the support component, successfully places the telescopic rod extending during the operation of the telescopic cylinder completely inside the support component. This achieves complete physical isolation between the telescopic rod and impurities such as dust and slag generated during the transportation of coal and mineral materials in the receiving chamber. It fundamentally eliminates the problem of impurities adhering to and corroding the telescopic rod, causing the telescopic cylinder to fail to seal or shorten its lifespan, and significantly extends the operation and maintenance cycle and overall service life of the telescopic cylinder. Meanwhile, the detection rod and matching sensor components that move synchronously with the gate can not only accurately capture the movement trajectory of the gate and limit its extreme positions of full opening and full closing, effectively avoiding faults such as excessive sealing gaps, material leakage or structural jamming caused by excessive movement of the gate, and ensuring the movement stability of the telescopic rod driving the gate, but also flexibly adjust the distance between the two gates by precisely controlling the extreme positions of the gate, thereby achieving precise adaptation of the opening and closing size of the discharge port, meeting the adjustment needs of coal and mineral material conveying flow under different working conditions. The overall design is fully adapted to the harsh production environment of coal mines with high dust and high vibration, and while greatly improving the operational stability and safety of the device, it effectively ensures the accuracy and efficiency of quantitative conveying of coal and mineral materials. Attached Figure Description

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a schematic diagram of the unloading mechanism in this embodiment; Figure 3 for Figure 2 A schematic diagram of the side cross-sectional structure; Figure 4 for Figure 2 A magnified structural diagram at point A; The components represented by the various reference numerals in the diagram are: 1. Frame; 2. Quantitative bin; 3. Branch chute; 4. Gate; 5. Receiving bin; 6. Support component; 7. Telescopic cylinder; 71. Telescopic rod; 8. Extension rod; 9. Limiting mechanism; 91. Bracket; 92. Detection rod; 93. Proximity switch; 94. Support block. Detailed Implementation

[0020] Combination Figure 1 and Figure 2This embodiment provides an automated loading device for coal mine railways, including a frame 1 and a buffer bin, a metering bin 2, and an inverted Y-shaped branch chute 3 arranged from top to bottom on the frame 1. The branch chute 3 includes a main chute and two branch chutes. A flat gate connected to the main chute is provided at the discharge port on the lower side of the metering bin 2. The flat gate is connected to the metering bin by a flange. Two gate plates 4 are arranged laterally opposite each other inside the flat gate. There are receiving bins 5 on both sides of the outside. The structure above is the prior art and will not be described in detail in this embodiment.

[0021] Combination Figure 2 and Figure 3 Each of the two receiving chambers 5 is provided with a support member 6 on its outer side, and a telescopic cylinder 7 is provided on the outer side of each of the two support members 6. The telescopic rods 71 ​​of the two telescopic cylinders 7 are arranged to move laterally in opposite directions. An extension rod 8 is provided laterally and movably sealed on the side wall of the receiving chamber 5 connected to the support member 6. One end of the extension rod 8 is connected to the telescopic rod 71, and the other end is connected to the gate 4 inside the receiving chamber 5.

[0022] Before the ingredients are dispensed, the telescopic rods 71 ​​of the two telescopic cylinders 7 extend, causing the two gate plates 4 to move closer to each other and overlap on that side (e.g., Figure 3 Two gates 4 are horizontally arranged in the middle and lower parts, with their opposite sides overlapping. At this time, the discharge port is in a closed state. After the material is fed, the telescopic rods 71 ​​of the two telescopic cylinders 7 retract, driving the two gates 4 to move away from each other, and the discharge port opens accordingly, so that the coal and mineral materials can enter the branch chute 3 through the discharge port.

[0023] The two branch chutes of the bifurcated chute 3 are respectively provided with loading chutes at the lower end outlets. The device also includes control rooms located on both sides of the frame 1, which are used to monitor the loading of trains on both sides, saving investment and making the device compact as a whole. The loading chutes can be sliding telescopic loading chutes or swing telescopic chutes. The frame 1 at the lower end of the two branch chutes is provided with chute rails.

[0024] The coal material transportation process is as follows: it first enters from the buffer bin, and after quantitative batching is completed in the quantitative bin 2, it is then diverted and unloaded into two loading chutes through the branch chute 3.

[0025] The buffer chamber is also equipped with an inspection door on its side wall, through which operators can enter and exit or insert tools into the chamber to carry out inspection and maintenance work.

[0026] On the side wall of the flat gate along the running direction of the gate plate 4, several rolling bearings are rotatably arranged on the upper and lower sides corresponding to the running range of the gate plate 4. These bearings provide support and guidance when the gate plate 4 is opened and closed. Each rolling bearing is equipped with a timed and quantitative automatic oil lubrication pipe to prevent the gate plate 4 from running poorly due to excessive resistance caused by the inflexible rotation of the rolling bearings. This effectively prevents the gate plate 4 from wearing and deforming, thereby improving the service life of the gate plate 4 and the telescopic rod 71.

[0027] Combination Figure 2 and Figure 3 The telescopic cylinder 7 is also provided with a limiting mechanism 9 on one side. The limiting mechanism 9 includes a detection rod 92 and a sensor assembly located on one side of the telescopic cylinder 7. One end of the detection rod 92 is located in the receiving chamber 5 and connected to the corresponding gate 4. The sensor assembly is located on one side of the other end of the detection rod 92 and can limit the extreme movement position of the detection rod 92. The detection rod 92 moves with the gate 4, and the sensor assembly limits the lateral extreme movement position of the gate 4.

[0028] The support member 6 is a frame structure that runs through the middle along the direction perpendicular to the axis of the telescopic rod 71. When the telescopic cylinder is working, its telescopic rod 71 is located inside the support member 6. The support member 6 is used to support the telescopic rod 71, and the structural design also facilitates the observation and maintenance of the telescopic rod 71.

[0029] In addition, the support member 6 can also be set as a cavity structure. In actual use, the inside or outside of the support member 6 is not affected by the harsh effects of substances such as coal mines compared with the internal environment of the storage chamber 5, and will hardly affect the telescopic rod 71. Therefore, the frame structure design of the support member 6, which facilitates the observation and maintenance of the telescopic rod 71, is the preferred design of this embodiment.

[0030] The outer side of the extension rod 8 and the telescopic rod 71 is provided with a connecting sleeve, and the threads of the extension rod 8 and the telescopic rod 71 are opposite to those of the connecting sleeve. The reverse thread connecting sleeve can be rotated to adjust the connection length of the extension rod 8 and the telescopic rod 71 synchronously. At the same time, the reverse thread structure can effectively prevent the connecting sleeve from loosening due to vibration, ensure that the extension rod 8 and the telescopic rod 71 are firmly connected, avoid the gate plate 4 from moving lagging behind, and ensure the transmission efficiency and operation stability of the device.

[0031] The detection rod 92 is parallel to the telescopic rod 71, and its middle part is laterally movable to the wall of the receiving chamber 5, providing stable support for the detection rod 92 and preventing it from shaking due to one end being suspended in the air, which would affect the detection accuracy of the sensor assembly.

[0032] In addition, the middle part of the detection rod 92 can also be laterally movably sealed against the wall of the receiving chamber 5 to prevent impurities in the receiving chamber 5 from leaking out from the gap between the detection rod 92 and the chamber wall. At the same time, it blocks debris from the external environment from entering the receiving chamber 5, further ensuring the cleanliness of the inside of the receiving chamber 5, and indirectly ensuring the smooth movement of the gate 4, avoiding switch failures caused by impurities blocking the flow.

[0033] The sensor assembly uses a non-contact detection method to limit the extreme movement position of the detection rod 92, so as to avoid direct contact between the sensor and the detection rod 92, eliminate mechanical wear, and significantly extend the service life of both. At the same time, the absence of frictional resistance will not affect the synchronous movement accuracy of the detection rod 92 and the gate 4, ensuring the reliability of the detection of the gate 4 at the limit position of opening or closing, and avoiding damage to the device structure caused by overtravel.

[0034] Combination Figure 4 The sensor assembly includes a bracket 91 located outside the housing 5 and a position sensor mounted on it. The bracket 91 is parallel to the detection rod 92, and two position sensors are spaced apart. The position sensor is preferably a proximity switch 93, and the position of the proximity switch 93 on the bracket 91 is adjustable.

[0035] The bracket 91 is also equipped with a support block 94. The detection rod 92 is slidably engaged with the support block 94. The support block 94 provides effective support for the end of the detection rod 92 away from the gate plate 4, preventing the detection rod 92 from bending and deforming due to its large span, and ensuring that it always moves smoothly in the lateral direction. The sliding engagement structure reduces the frictional resistance when the detection rod 92 moves, avoids jamming that affects the synchronization of the gate plate 4's movement, and reduces the wear of the detection rod 92, further improving the reliability of the coordinated work between the detection rod 92 and the sensor assembly.

[0036] The container 5 is sealed with a removable sealing plate so that the operator can monitor the movement status of the gate 4 and the extension rod 8 in real time.

Claims

1. An automated loading device for coal mine railways, comprising a frame (1) with a quantitative bin (2) and a branch chute (3) arranged vertically on the frame, a flat gate being provided between the quantitative bin (2) and the branch chute (3), two gate plates (4) being arranged laterally opposite each other inside the flat gate, and receiving bins (5) being provided on both sides of the outside, characterized in that: Support members (6) are provided on the outside of the two storage compartments (5), and telescopic cylinders (7) are provided on the outside of the two support members (6). The telescopic rods (71) of the two telescopic cylinders (7) are arranged to move laterally in opposite directions. An extension rod (8) is provided on the side wall of the storage compartment (5) connected to the support member (6) for lateral movability sealing. One end of the extension rod (8) is connected to the telescopic rod (71), and the other end is connected to the gate (4) inside the receiving compartment (5); The telescopic cylinder (7) is also provided with a detection rod (92) on one side. One end of the rod is located in the receiving chamber (5) and connected to the corresponding gate (4). The other end is provided with a sensor assembly that can limit its extreme movement position.

2. The automated loading device for coal mine railways as described in claim 1, characterized in that, The support member (6) is a frame structure that runs through the middle along the axis perpendicular to the telescopic rod (71).

3. The automated loading device for coal mine railways as described in claim 1, characterized in that, The detection rod (92) is parallel to the telescopic rod (71), and its middle part is laterally movable to the wall of the receiving chamber (5).

4. The automated loading device for coal mine railways as described in claim 1, characterized in that, The sensor assembly uses a non-contact detection method.

5. The automated loading device for coal mine railways as described in claim 4, characterized in that, The sensor assembly includes a bracket (91) located outside the housing (5) and a position sensor mounted on it.

6. The automated loading device for coal mine railways as described in claim 5, characterized in that, The bracket (91) is parallel to the detection rod (92), and two position sensors are provided at intervals.

7. The automated loading device for coal mine railways as described in claim 6, characterized in that, The bracket (91) is also provided with a support block (94), and the detection rod (92) slides in cooperation with the support block (94).

8. The automated loading device for coal mine railways as described in claim 1, characterized in that, The two gates (4) are respectively connected laterally to the side walls of the warehouse on opposite sides.

9. The automated loading device for coal mine railways as described in claim 1, characterized in that, The extension rod (8) and the telescopic rod (71) are provided with a connecting sleeve on the outer side of the opposite end, and the threads of the extension rod (8) and the telescopic rod (71) are opposite to the threads of the connecting sleeve at the spiral connection end.

10. An automated loading device for coal mine railways as described in any one of claims 1-9, characterized in that, The container (5) is sealed with a removable sealing plate.

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