Pseudo-inclined fully-mechanized mining hydraulic support with tail part capable of disturbing waste rock guide

Abstract

The utility model discloses a pseudo-inclined fully-mechanized mining hydraulic support with a tail part capable of disturbing waste rock guide, which comprises a top beam, one end of the top beam is connected with a shield beam, the shield beam is connected with a base through a front connecting rod and a rear connecting rod, a stand column is arranged between the base and the top beam, and the front end of the base is provided with a pushing mechanism. The side, away from the front connecting rod, of the rear connecting rod is provided with a tail disturbance structure, the tail disturbance structure and the multiple adjacent tail disturbance structures form a flow guide face, the flow guide face is used for blocking and guiding gangue, and a certain angle is formed between the extending direction of the flow guide face and the axis direction of the top beam. The technical problem that in the prior art, gangue accumulation at the tail of a hydraulic support causes tail swinging and overturning is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining machinery, in particular to a pseudo-oblique fully-mechanized mining hydraulic support with a tail capable of disturbing and guiding gangue. Background Art

[0002] Steeply inclined coal seams refer to coal seams with an inclination angle greater than 45°. In my country, the reserves of steeply inclined coal seams account for about 15% to 20% of the total coal reserves. Most of the major mining areas in my country have steeply inclined coal seams, and their annual output accounts for 8% to 12% of the total coal output in the country. In recent years, with the increase in mining intensity, high-quality coal resources have been rapidly depleted. In order to ensure the sustainable development of mines, many mining areas have to consider mining steeply inclined coal seams. Figure 1 As shown, 50% of the total coal production in Sichuan, Guizhou, and Yunnan provinces comes from this type of coal seam. Production practice has shown that mining in steeply inclined coal seams is severely hampered by hazards such as working face inclination, equipment sliding and toppling, uneven support loading, flying gangue, coal wall spalling, and floor slippage, severely restricting the safe and efficient mining of these complex coal seams. Pseudo-slope mining in steeply inclined coal seams can effectively reduce injuries from flying gangue, mitigate coal wall spalling, improve floor stability, reduce mining risks in the southern zone of steeply inclined coal seams, and improve mining efficiency.

[0003] However, the existing supports are used in pseudo-dipping mining, and there are cases where the supports are in a "ladder" shape, such as Figure 2 To prevent the shearer from cutting the top beam, the distance between the beam ends must be increased, which can easily cause the roof to leak in front of the support. Gangue accumulation at the rear of the support can easily cause the support to swing and flip, increasing the difficulty of support control and affecting its forward movement. To address this issue, prior art, such as the Chinese patent document published in Publication No. CN117145550 A, describes a hydraulic support suitable for pseudo-dip mining in steep-angle coal seams, in which the top and bottom of the support are designed as parallelograms.

[0004] However, the hydraulic supports using the above-mentioned method cannot meet the problem of interchangeability between the left and right working faces, which increases the investment cost of the mine. The inventors of this application have discovered that the tail of the steeply inclined working face is generally unevenly filled with waste rock, mainly concentrated in the lower half of the support. Therefore, how to solve the problem of waste rock accumulation at the tail is a difficult problem for those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a pseudo-inclined fully-mechanized mining hydraulic support with a tail capable of disturbing and guiding gangue, so as to solve the technical problem of tail swinging and flipping caused by gangue accumulation at the tail of the hydraulic support in the above-mentioned prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A pseudo-inclined fully-mechanized mining hydraulic support with a tail that can disturb and guide gangue includes: a top beam, one end of the top beam is connected to a shield beam, the shield beam is connected to a base through a front connecting rod and a rear connecting rod, a column is provided between the base and the top beam, a pushing mechanism is provided at the front end of the base, the rear connecting rod has a tail disturbance structure on the side away from the front connecting rod, and several adjacent tail disturbance structures form a guide surface for blocking and guiding gangue, and the extension direction of the guide surface forms a certain angle with the axial direction of the top beam.

[0008] The utility model discloses a pseudo-inclined fully-mechanized mining hydraulic support with a tail capable of disturbing the gangue guide. The tail disturbance structure includes a disturbance baffle, one end of the disturbance baffle is hinged to the rear connecting rod structure through a hinge shaft, and the other end of the disturbance baffle is connected to the rear connecting rod structure through a telescopic power device.

[0009] The utility model provides a pseudo-inclined fully-mechanized mining hydraulic support with a tail capable of disturbing the guide gangue. One end of the telescopic power device is hinged to the rear connecting rod structure through a fixed hinge shaft, and the other end of the telescopic power device is hinged to the disturbance baffle through a movable hinge shaft.

[0010] The utility model discloses a pseudo-pitch-inclined fully-mechanized mining hydraulic support with a tail capable of disturbing the guide gangue, wherein the telescopic power device is a hydraulic oil cylinder.

[0011] The beneficial effects of the utility model are as follows: a pseudo-inclined fully-mechanized mining hydraulic support with a tail that can disturb and guide gangue is proposed, and a diversion structure can be formed at the tail of the hydraulic support by arranging a disturbance structure, thereby reducing the tail swing of the support caused by the accumulation of gangue at the tail during pseudo-inclined mining, and reducing the difficulty of controlling the support posture and the difficulty of advancing the support; and by arranging a disturbance baffle with one end fixedly hinged and the other end movably hinged, and providing opening and closing power through a telescopic power device, the extension amount of the telescopic power device can be controlled to adjust the opening and closing degree of the disturbance baffle, thereby achieving the effect of adjusting its diversion angle, thereby being able to adapt to more working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0013] Figure 1 This is a schematic diagram of uneven filling of waste rock in a steeply inclined working face with a large dip angle in the background technology;

[0014] Figure 2 It is a step-like schematic diagram of the background technology existing hydraulic supports applied to pseudo-pitch working surfaces;

[0015] Figure 3 It is a layout diagram of an embodiment of the utility model;

[0016] Figure 4 It is a schematic diagram of an embodiment of the utility model;

[0017] Figure 5 It is a schematic diagram of the disturbance structure of an embodiment of the utility model;

[0018] Figure 6 It is a schematic diagram of the working state of the disturbance structure of an embodiment of the present utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 3-6 As shown, a pseudo-inclined fully mechanized mining hydraulic support with a tail that can disturb and guide gangue includes: a top beam 1, one end of the top beam 1 is connected to a shield beam 2, the shield beam 2 is connected to a base 5 through a front connecting rod 3 and a rear connecting rod 8, a column 7 is provided between the base 5 and the top beam 1, a pushing mechanism 6 is provided at the front end of the base 5, the rear connecting rod 8 has a tail disturbance structure 4 on the side away from the front connecting rod 3, and the tail disturbance structure 4 and several adjacent tail disturbance structures 4 form a guide surface 9, which is used to block and guide gangue, and the extension direction of the guide surface 9 forms a certain angle with the axial direction of the top beam 1.

[0021] It should be noted that the disturbance opening direction of the tail disturbance structure 4 is downwardly inclined toward the inclined surface of the installation foundation, that is, reducing the step-like space formed between adjacent supports, preventing gangue from gathering at the steps, and preventing the impact of flowing rocks.

[0022] In a preferred embodiment of the present utility model, the tail disturbance structure 4 includes a disturbance baffle 43, one end of the disturbance baffle 43 is hinged to the rear connecting rod structure 41 through a hinge shaft 42, and the other end of the disturbance baffle 43 is connected to the rear connecting rod structure 41 through a telescopic power device 45.

[0023] It should be noted that the hinged portion of the disturbance baffle 43 has a hinged seat, and the height of the hinged seat is adjusted according to actual conditions for different hydraulic supports.

[0024] In a preferred embodiment of the present invention, one end of the telescopic power device 45 is hinged to the rear connecting rod structure 41 through a fixed hinge shaft 44 , and the other end of the telescopic power device 45 is hinged to the disturbance baffle 43 through a movable hinge shaft 46 .

[0025] In a preferred embodiment of the present invention, the telescopic power device 45 is a hydraulic cylinder, and the stroke of the hydraulic cylinder can be controlled by a control system, so that the opening angle of the disturbance baffle 43 can be adjusted according to the staggered distance between adjacent hydraulic supports.

[0026] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0028] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A pseudo-inclined fully-mechanized mining hydraulic support with a tail that can disturb the gangue, characterized in that: include: A top beam (1), one end of the top beam (1) is connected to a shield beam (2), the shield beam (2) is connected to a base (5) via a front connecting rod (3) and a rear connecting rod (8), a column (7) is provided between the base (5) and the top beam (1), a front end of the base (5) is provided with a push mechanism (6), a side of the rear connecting rod (8) away from the front connecting rod (3) is provided with a tail disturbance structure (4), the tail disturbance structure (4), and a plurality of adjacent tail disturbance structures (4) form a guide surface (9), the guide surface (9) is used to block and guide gangue, and the extension direction of the guide surface (9) forms an angle with the axial direction of the top beam (1).

2. A pseudo-inclined fully-mechanized mining hydraulic support with a tail-end capable of disturbing and guiding gangue according to claim 1, characterized in that: The tail disturbance structure (4) comprises a disturbance baffle (43), one end of the disturbance baffle (43) is hinged to the rear connecting rod structure (41) via a hinge shaft (42), and the other end of the disturbance baffle (43) is connected to the rear connecting rod structure (41) via a telescopic power device (45).

3. A pseudo-inclined fully-mechanized mining hydraulic support with a tail-end capable of disturbing and guiding gangue according to claim 2, characterized in that: One end of the telescopic power device (45) is hinged to the rear connecting rod structure (41) via a fixed hinge shaft (44), and the other end of the telescopic power device (45) is hinged to the disturbance baffle (43) via a movable hinge shaft (46).

4. A pseudo-inclined fully-mechanized mining hydraulic support with a tail-end capable of disturbing and guiding gangue according to claim 2, characterized in that: The telescopic power device (45) is a hydraulic cylinder.

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