Novel hinged front beam of hydraulic support

Abstract

The utility model discloses a novel hydraulic support hinged front beam, which relates to the technical field of coal mining equipment, and comprises a hinged front beam, a top beam and a stand column, the rear end of the hinged front beam is rotatably connected with the top beam, and the hinged front beam is provided with an extension part corresponding to the rear of the rotating position of the hinged front beam and the top beam; a rotatable column nest is clamped in the top beam, the front end of the column nest extends to the position above the extending part, and the rear end of the column nest is rotationally connected with the stand column. The hydraulic support has the advantages that a front beam jack does not need to be additionally arranged to control the hinged front beam to act, and beam end force is directly provided for the hinged front beam through the stand columns of the hydraulic support to achieve the top contact effect of the hinged front beam; the stand column is lowered, the hinged front beam automatically swings downwards, and the frame moving efficiency is improved; the disassembly is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining equipment, in particular to a novel hydraulic support hinged front beam. Background Art

[0002] Coal mine hydraulic support is one of the important equipment in comprehensive mining equipment. It supports the mining of underground working faces in coal mines and protects the safety of equipment and personnel. Due to the complex geological conditions of coal mines and the difficulty of roof management, the overall top beam of the hydraulic support is not suitable for soft or broken geological conditions of the roof. The articulated front beam can better adapt to such roof conditions. In addition, due to the underground transportation conditions of coal mines, there will be transportation size requirements. The articulated front beam can reduce the overall length of the support and facilitate going down the mine.

[0003] At present, the existing articulated front beam structures all control the swing of the articulated front beam through the front beam jack. For example, patent No. CN218093087U (a telescopic beam of the front beam of a hydraulic support for top coal caving) discloses a telescopic beam of the front beam of a hydraulic support for top coal caving, which relates to the technical field of auxiliary equipment for top coal caving and fully mechanized caving, and comprises a front beam body, one end of the front beam body is hinged with a top beam, and a telescopic beam and a jack are respectively installed inside the front beam body, and the telescopic beam is connected to the front beam body through the jack. The patent controls the swing through the front beam jack, and the structure is not easy to operate.

[0004] The existing articulated front beam needs to directly control the swing of the front beam through the front beam jack, which has the following problems:

[0005] 1. In the traditional articulated front beam, the beam end force is provided by the front beam jack, while in this scheme, the beam end force of the articulated front beam is provided by the column.

[0006] 2. The existing articulated front beam structure needs to be controlled by the front beam cylinder, so it is necessary to weld the cylinder connecting ears on the articulated front beam and the top beam body. The structure is relatively complex and the welding problem needs to be considered.

[0007] 3. The hydraulic system of the existing structural support articulated front beam is relatively complex and requires manual operation. Utility Model Content

[0008] The purpose of the utility model is to provide a novel hydraulic support hinged front beam in order to solve the above problems.

[0009] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0010] A novel hinged front beam of a hydraulic support comprises a hinged front beam, a top beam and a column, wherein the rear end of the hinged front beam is rotatably connected to the top beam, and an extension portion is arranged at the rear of the junction front beam corresponding to the rotation position of the hinged front beam and the top beam; a rotatable column socket is arranged inside the top beam, the front end of the column socket extends to above the extension portion, and the rear end of the column socket is rotatably connected to the column.

[0011] Preferably, a rotating shaft is provided at the middle position of both sides of the column socket, and the rotating shaft is clamped on the top beam for rotation.

[0012] Preferably, the upper surface of the column socket is a curved surface, and the curved surface is tangent to the inner upper wall of the top beam.

[0013] Preferably, the hinged front beam is an integral box-type structure, with two lifting holes at the front end and the side respectively.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. There is no need to set up a front beam jack to control the movement of the articulated front beam. The hydraulic support column directly provides the articulated front beam with beam end force to achieve the effect of connecting the articulated front beam to the top;

[0016] 2. Adjust the angle of the hydraulic support's hinged front beam during the frame shifting process through the linkage structure between the hydraulic support's columns, top beam and hinged front beam. The hydraulic support generally needs to swing the hinged front beam downward during frame shifting to prevent the front beam from being damaged. After the frame shifting is completed, the hydraulic support's top beam supports the top plate of the working surface, and the hinged front beam swings to a state of supporting the top plate together with the top beam to ensure that it can contact the top plate, thereby supporting the top plate and preventing the top plate from leaking or caving;

[0017] 3. Simple operation, lower the column, and the hinged front beam automatically swings down to improve the efficiency of moving the rack; it is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a right view structural schematic diagram of a new type of hydraulic support hinged front beam described in the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Articulated front beam; 2. Top beam; 3. Vertical column; 4. Column socket; 5. Rotating shaft. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1As shown, a novel hydraulic support articulated front beam comprises an articulated front beam 1, a top beam 2 and a column 3. The rear end of the articulated front beam 1 is rotatably connected to the top beam 2, and an extension portion is arranged at the rear of the intersection front beam corresponding to the rotation position of the articulated front beam 1 and the top beam 2; a rotatable column socket 4 is arranged inside the top beam 2, the front end of the column socket 4 extends to above the extension portion, and the rear end of the column socket 4 is rotatably connected to the column 3; the column 3 is a hydraulic telescopic column, and when the frame is moved, the column 3 contracts the rear end of the column socket 4 downward and the front end upward to release the articulated front beam 1, and the front end of the articulated front beam 1 swings downward to prevent the articulated front beam 1 from being damaged when the frame is moved. After the frame is moved, the column 3 is extended to push the column socket 4 around the rotation axis 5 on the top beam 2, the rear end of the column socket 4 presses the hinged front beam 1 upward and the front end downward, and the hinged front beam 1 swings up to ensure that it can contact the top plate, thereby supporting the top plate and preventing the top plate from leaking or bursting. The swing amplitude of the hinged front beam 1 is within a range of about 3 degrees; a rotating shaft 5 is provided at the middle position on both sides of the column socket 4, and the rotating shaft 5 is clamped on the top beam 2 and rotates; the upper surface of the column socket 4 is an arc surface, and the arc surface is tangent to the upper wall inside the top beam 2, which plays a supporting role between the column 3 and the top beam 2, and prevents the supporting force of the column 3 on the top beam 2 from falling entirely on the rotating shaft 5; the hinged front beam 1 is an integral box-type structure, and there are two hoisting holes at the front end and the side respectively, which are convenient for hoisting the hinged front beam 1.

[0026] Working principle: When in use, when the hydraulic support is moved, the column 3 contracts the column socket 4, the rear end of which is downward and the front end is upward to loosen the hinged front beam 1, and the front end of the hinged front beam 1 swings downward to prevent the hinged front beam 1 from being damaged when the frame is moved. After the frame is moved, the column 3 extends and pushes the column socket 4 to rotate around the rotating shaft 5 in the top beam 2. The rear end of the column socket 4 presses the hinged front beam 1 upward and the front end downward, and the hinged front beam 1 swings upward to ensure that it can contact the top plate, thereby supporting the top plate and preventing the top plate from leaking or bursting.

[0027] The top beam 2 and the column 3 are both universal standard parts or parts known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0028] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements shall fall within the scope of the utility model to be protected.

Claims

1. A novel hinged front beam of a hydraulic support, comprising a hinged front beam (1), a top beam (2) and a column (3), characterized in that: The rear end of the hinged front beam (1) is rotatably connected to the top beam (2), and an extension portion is arranged on the hinged front beam at the rear of the rotation position of the hinged front beam (1) and the top beam (2); a rotatable column socket (4) is arranged inside the top beam (2), the front end of the column socket (4) extends to above the extension portion, and the rear end of the column socket (4) is rotatably connected to the column (3).

2. According to claim 1, the novel hydraulic support hinged front beam is characterized in that: A rotating shaft (5) is provided at the middle position of both sides of the column socket (4), and the rotating shaft (5) is clamped on the top beam (2) and rotates.

3. According to claim 1, the novel hinged front beam of hydraulic support is characterized in that: The upper surface of the column socket (4) is a curved surface, and the curved surface is tangent to the inner upper wall of the top beam (2).

4. The novel hinged front beam of a hydraulic support according to claim 1 is characterized in that: The hinged front beam (1) is an integral box-shaped structure, with two lifting holes at the front end and the side respectively.

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