A telescopic cover plate for a reclaimer discharge chute

Abstract

The utility model relates to a telescopic cover plate for unloading groove of transfer machine, including first cover plate, second cover plate and drive arrangement, the first cover plate is arranged in the unloading groove top and slides, the first cover plate one side is connected with the side plate, the side plate sets up the unloading groove outside, the unloading groove top is fixed with the top plate in the first cover plate far away from the unloading groove discharge port one end, the second cover plate is arranged below the top plate and slides, the second cover plate is fixed with the first cover plate close to the first cover plate one end, the drive arrangement sets up on the top plate, the utility model discloses through the telescopic end of drive arrangement and stretches out, drives the first cover plate and removes, and the side plate carries out the shelter to the unloading groove discharge port, and the second cover plate removes between the first cover plate and the top plate, avoided the material dust and leaked, reduced the security risk of operator.

Description

Technical Field

[0001] This utility model belongs to the field of transfer machine technology, and specifically relates to a telescopic cover plate for the unloading chute of a transfer machine. Background Technology

[0002] During coal transportation in a fully mechanized mining face, a scraper conveyor is used to transport materials from the face to a transfer conveyor, which then transfers the materials to a belt conveyor. The transfer conveyor has a discharge port on one side of its discharge chute, through which the scraper conveyor transports materials. However, as the discharge chute moves with the progress of the working face, material dust can easily leak out, causing environmental pollution. Furthermore, operators need to frequently approach the discharge chute, and the discharge port is unprotected, posing a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a telescopic cover for the unloading chute of a transfer machine, which can block the unloading port of the unloading chute.

[0004] To achieve the above objectives, the present invention provides a telescopic cover for a transfer machine unloading chute, comprising a first cover, a second cover, and a driving device.

[0005] The first cover plate is slidably disposed on the top of the unloading trough; a side plate is vertically disposed on one side of the first cover plate; the side plate is disposed on the outside of the unloading trough; a top plate is fixed to the top of the unloading trough at the end of the first cover plate away from the unloading port of the unloading trough; the second cover plate is slidably disposed below the top plate; the end of the second cover plate near the first cover plate is fixed to the first cover plate; the driving device is disposed on the top plate.

[0006] Preferably, limit blocks are fixed on both sides of the second cover plate; the top height of the two limit blocks is higher than the top height of the second cover plate; the top of the two limit blocks is in contact with the bottom of the top plate, and the side of the two limit blocks that is far apart from each other is in contact with the side wall of the unloading chute.

[0007] Preferably, at least two side plates are provided; at least two side plates are respectively hinged to the first cover plate.

[0008] Preferably, the driving device is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0009] This utility model provides a telescopic cover plate for the unloading chute of a transfer machine, which has the following advantages compared with the prior art:

[0010] (1) The first cover plate is driven to move by extending the telescopic end of the drive device. The side plate blocks the discharge port of the discharge chute. The second cover plate moves between the first cover plate and the top plate, which avoids material dust leakage and reduces the safety hazards of operators.

[0011] (2) The design is simple, easy to use, and has low manufacturing cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the first cover plate and the second cover plate;

[0014] Figure 3 This is a schematic diagram of the structure when the first cover plate is extended. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] Example 1

[0017] like Figures 1-3 As shown, a telescopic cover for a transfer machine unloading chute includes a first cover plate 1, a second cover plate 2, and a drive device 3.

[0018] The first cover plate 1 is slidably disposed on the top of the unloading trough 4; a side plate 5 is vertically disposed on one side of the first cover plate 1; the side plate 5 is disposed on the outside of the unloading trough 4, and the side plate 5 slides during the sliding of the first cover plate 1, and the side plate 5 blocks the unloading port of the unloading trough 4; a top plate 41 is fixed on the top of the unloading trough 4 at the end of the first cover plate 1 away from the unloading port of the unloading trough 4.

[0019] The second cover plate 2 is slidably disposed below the top plate 41; the end of the second cover plate 2 near the first cover plate 1 is fixed to the first cover plate 1, wherein the second cover plate 2 and the first cover plate 1 can be integrally formed, or the second cover plate 2 can be welded to the bottom of the first cover plate 1. When the first cover plate 1 slides, it drives the second cover plate 2 to slide. When the first cover plate 1 moves to the top of the discharge port of the discharge trough 4, a part of the second cover plate 2 moves between the first cover plate 1 and the top plate 41 to cover the top of the discharge trough 4.

[0020] The driving device 3 is mounted on the top plate 41 and is used to drive the first cover plate 1 to move above the discharge port of the unloading chute 4. The driving device 3 can be a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. The fixed end of the driving device 3 is fixed to the top plate 41, and the telescopic end of the driving device 3 is fixed to the first cover plate 1. When the unloading chute 4 of the transfer machine moves with the progress of the working face, the telescopic end of the driving device 3 extends to drive the first cover plate 1 to move. The side plate 5 blocks the discharge port of the unloading chute 4. The second cover plate 2 moves between the first cover plate 1 and the top plate 41 to prevent material dust from leaking out and reduce the safety hazards to the operators. When the movement ends, the first cover plate 1 retracts to the initial position, the second cover plate 2 moves back to below the top plate 41, and the discharge port of the unloading chute 4 opens.

[0021] In this embodiment, limiting blocks 21 are fixed on both sides of the second cover plate 2; the top height of the two limiting blocks 21 is higher than the top height of the second cover plate 2, wherein the second cover plate 2 can be fixed to the bottom of the first cover plate 1 by the two limiting blocks 21; the top of the two limiting blocks 21 is in contact with the bottom of the top plate 41, and the side of the two limiting blocks 21 that is far away from each other is in contact with the side wall of the unloading trough 4. By the limiting blocks 21 contacting the bottom of the top plate 41, the first cover plate 1 is prevented from tilting downward when it moves to the unloading port, and by the limiting blocks 21 contacting the side wall of the unloading trough 4, the second cover plate 2 and the first cover plate 1 are limited, preventing the first cover plate 1 and the second cover plate 2 from shifting when the first cover plate 1 moves.

[0022] Example 2

[0023] At least two side plates 5 are provided; at least two side plates 5 are respectively hinged to the first cover plate 1, so that when the side plates 5 block the unloading port of the unloading trough 4, the side plates 5 can be manually lifted. Other features are the same as in Embodiment 1.

Claims

1. A telescopic cover plate for a transfer machine unloading chute, characterized in that, It includes a first cover plate (1), a second cover plate (2), and a drive device (3). The first cover plate (1) is slidably disposed on the top of the unloading trough (4); a side plate (5) is vertically disposed on one side of the first cover plate (1); the side plate (5) is disposed on the outside of the unloading trough (4); a top plate (41) is fixed on the top of the unloading trough (4) at the end of the first cover plate (1) away from the unloading port of the unloading trough (4); the second cover plate (2) is slidably disposed below the top plate (41); the end of the second cover plate (2) close to the first cover plate (1) is fixed to the first cover plate (1); the driving device (3) is disposed on the top plate (41).

2. The telescopic cover plate for the unloading chute of a transfer machine according to claim 1, characterized in that, Limiting blocks (21) are fixed on both sides of the second cover plate (2); the top height of the two limiting blocks (21) is higher than the top height of the second cover plate (2); the top of the two limiting blocks (21) is in contact with the bottom of the top plate (41), and the side of the two limiting blocks (21) that is far away from each other is in contact with the side wall of the unloading trough (4).

3. The telescopic cover plate for the unloading chute of a transfer machine according to claim 1, characterized in that, The side plate (5) is provided in at least two parts; at least two of the side plates (5) are respectively hinged to the first cover plate (1).

4. The telescopic cover plate for the unloading chute of a transfer machine according to claim 1, characterized in that, The drive device (3) is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

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