Hydraulic support top beam structure and hydraulic support
A technology of hydraulic support and roof beam, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc. It can solve the problems of poor bearing capacity, poor bending and torsion resistance of the roof beam, and easy cracking, so as to improve the stress concentration , Improve the bearing capacity, improve the effect of the overall bending and torsion resistance
Pending Publication Date: 2020-12-08
SANY HEAVY EQUIP
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Problems solved by technology
[0004] However, there is a connection intersection point formed at the four corners of the depression cover plate, the transverse reinforcement and the main reinforcement between the depression cover plate, and the stress at the connection intersection is often concentrated, and cracks are prone to occur, which makes the bearing capacity of the column cap of the top beam poor , resulting in poor overall bending and torsional capacity of the top beam
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[0048] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.
[0049] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indic...
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The invention discloses a hydraulic support top beam structure and a hydraulic support, and relates to the technical field of coal mine fully-mechanized coal mining equipment. The main purpose is to improve the bearing capacity of the column cap position of a top beam, and therefore the overall bending resistance and torsion resistance of the top beam are improved. According to the main technicalscheme, the hydraulic support top beam structure comprises a first box, a second box, a concave first cover plate, a top beam body, an inner main rib, an outer main rib, a front transverse rib and a rear transverse rib, wherein the top beam body, the inner main rib, the outer main rib, the front transverse rib and the rear transverse rib are connected with one another; the periphery of the first cover plate is connected with the inner main rib, the outer main rib, the front transverse rib and the rear transverse rib, and connecting intersection points are formed at the corners of the ends of the first cover plate; the first box wraps the connecting intersection point at one end of the first cover plate, and the first box is connected with the first cover plate, the inner main rib, the outer main rib and the top beam body; and the second box wraps the connecting intersection point at the other end of the first cover plate, and the second box is connected with the first cover plate, theinner main rib, the outer main rib and the top beam body.
Description
technical field [0001] The invention relates to the technical field of coal mine fully mechanized mining equipment, in particular to a hydraulic support top beam structure and a hydraulic support. Background technique [0002] In the retreat coal mining process, it is usually necessary to use hydraulic support equipment for support operations. The safety of the hydraulic support directly determines the safety of coal production. The top beam is the main supporting force-bearing structural part of the hydraulic support. The position is the position where the load of the column is concentrated, and the bending moment and torsional moment are relatively large. For the support with large resistance and large mining height, cracking failures are prone to occur at this position. [0003] At present, for the position of the column cap on the top beam of the support with large mining height and large resistance, an inwardly recessed cover plate is usually provided to disperse the be...
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IPC IPC(8): E21D23/06
CPCE21D23/06
Inventor 柳佳岐魏栋梁周俊朱庆波
Owner SANY HEAVY EQUIP