Hydraulic support top beam structure and hydraulic support

Abstract

The present invention discloses a hydraulic support top beam structure and a hydraulic support, which relates to the technical field of coal mine comprehensive mining equipment, and the main purpose is to improve the bearing capacity at the column cap position of the top beam, thereby improving the overall bending and torsion resistance of the top beam. The main technical scheme of the present invention is: the hydraulic support top beam structure includes: a first box body, a second box body, a concave first cover plate, and a top beam body, inner main reinforcement, outer main reinforcement, front transverse reinforcement and rear transverse reinforcement connected to each other; the outer periphery of the first cover plate is respectively connected to the inner main reinforcement, outer main reinforcement, front transverse reinforcement and rear transverse reinforcement, and connection intersections are respectively formed at the end corners of the first cover plate; the first box body is covered at the connection intersection at one end of the first cover plate, and the first box body is respectively connected to the first cover plate, the inner main reinforcement, the outer main reinforcement and the top beam body; the second box body is covered at the connection intersection at the other end of the first cover plate, and the second box body is respectively connected to the first cover plate, the inner main reinforcement, the outer main reinforcement and the top beam body.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine fully mechanized mining equipment, and in particular to a hydraulic support top beam structure and a hydraulic support. Background Art

[0002] In the withdrawable coal mining process, hydraulic support equipment is usually required for support operations. The safety of the use of hydraulic supports directly determines the safety of coal production. The top beam is the main supporting load-bearing structure of the hydraulic support. The column cap is the location where the column load is concentrated. The bending and torsional moments it is subjected to are large. For supports with high resistance and large mining height, cracking failures are prone to occur at this location.

[0003] At present, for the position of the column cap on the top beam of the large mining height and large resistance support, an inwardly recessed recessed cover plate is usually provided to disperse the bending moment and torsional force on the column cap. At the same time, the front and rear transverse reinforcements of the top beam are respectively arranged on the front and rear sides of the recessed cover plate, and the inner and outer main reinforcements of the top beam are respectively arranged on the left and right sides of the recessed cover plate to improve the strength of the top beam. Moreover, the front and rear transverse reinforcements are respectively connected to the two ends of the recessed cover plate, and the inner and outer main reinforcements are respectively connected to the two sides of the recessed cover plate.

[0004] However, connection intersections are formed between the recessed cover plate, transverse reinforcement and main reinforcement at the four corners of the recessed cover plate, and the stress is often concentrated at the connection intersections, which are prone to cracking, resulting in poor bearing capacity at the column cap position of the top beam, thereby causing poor overall bending and torsional resistance of the top beam. Summary of the invention

[0005] The embodiment of the present invention provides a hydraulic support top beam structure and a hydraulic support, the main purpose of which is to improve the bearing capacity at the column cap position of the top beam, thereby improving the overall bending and torsional resistance of the top beam.

[0006] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0007] On the one hand, an embodiment of the present invention provides a top beam structure of a hydraulic support, comprising:

[0008] A first box body, a second box body, a concave first cover plate, and a top beam body, inner main reinforcement, outer main reinforcement, front transverse reinforcement and rear transverse reinforcement connected to each other;

[0009] The outer periphery of the first cover plate is respectively connected to the inner main rib, the outer main rib, the front transverse rib and the rear transverse rib, and connection intersections are respectively formed at the end corners of the first cover plate;

[0010] The first box body is covered on the connection intersection at one end of the first cover plate, and the first box body is respectively connected to the first cover plate, the inner main reinforcement, the outer main reinforcement and the top beam body;

[0011] The second box body is covered on the connection intersection at the other end of the first cover plate, and the second box body is respectively connected to the first cover plate, the inner main reinforcement, the outer main reinforcement and the top beam body.

[0012] Furthermore, the first box body includes a first plate body, a second plate body, a first transverse rib and a second transverse rib;

[0013] The first plate body is extended based on the outer main ribs toward the inner main ribs, and the second plate body is extended based on the inner main ribs toward the outer main ribs;

[0014] The first plate body and the second plate body are opposite to each other and connected to each other, and cover the connection intersection at one end of the first cover plate;

[0015] The first transverse rib is located on one side of the first plate body and the second plate body, and is respectively connected to the first plate body, the second plate body and the top beam body;

[0016] The second transverse rib is located at the other side of the first plate body and the second plate body, and is respectively connected to the first plate body, the second plate body and the first cover plate.

[0017] Furthermore, the first plate body is integrally connected to the outer main rib, and the first plate body extends along an arc track;

[0018] The end surface of the first plate body is smoothly transitionally connected to the end surface of the outer main rib;

[0019] The second plate body is integrally connected to the inner main rib, and the second plate body extends along an arc track;

[0020] The end surface of the second plate body is smoothly transitionally connected to the end surface of the inner main rib.

[0021] Furthermore, the first box body also includes a second cover plate;

[0022] There is a first gap between the first plate body and the second plate body, and the first plate body and the second plate body are connected to each other through the second cover plate;

[0023] One end of the second cover plate is overlapped with the first plate body and connected to each other, and the other end of the second cover plate is overlapped with the second plate body and connected to each other.

[0024] Furthermore, the second box body includes a third plate body, a fourth plate body, a third transverse rib and a fourth transverse rib;

[0025] The third plate body is extended based on the outer main ribs toward the inner main ribs, and the fourth plate body is extended based on the inner main ribs toward the outer main ribs;

[0026] The third plate body and the fourth plate body are opposite to each other and connected to each other, and cover the connection intersection at the other end of the first cover plate;

[0027] The third transverse rib is located at one side of the third plate body and the fourth plate body, and is respectively connected to the third plate body, the fourth plate body and the top beam body;

[0028] The fourth transverse rib is located at the other side of the third plate body and the fourth plate body, and is respectively connected to the third plate body, the fourth plate body and the first cover plate.

[0029] Furthermore, the third plate body is integrally connected to the outer main rib, and the third plate body extends along an arc track;

[0030] The end surface of the third plate body is smoothly transitionally connected to the end surface of the outer main rib;

[0031] The fourth plate body is integrally connected with the inner main rib, and the fourth plate body extends along an arc track;

[0032] The end surface of the fourth plate body is smoothly transitionally connected to the end surface of the inner main rib.

[0033] Furthermore, the second box body also includes a third cover plate;

[0034] A second gap is provided between the third plate body and the fourth plate body, and the third plate body and the fourth plate body are connected to each other through the third cover plate;

[0035] One end of the third cover plate is overlapped with the third plate body and connected to each other, and the other end of the third cover plate is overlapped with the fourth plate body and connected to each other.

[0036] Furthermore, the first transverse rib is in a convex shape, the small end of the first transverse rib is inserted into the first gap and connected to the first plate body and the second plate body respectively, and the large end of the first transverse rib is connected to the first plate body, the second plate body and the top beam body respectively;

[0037] The second transverse rib is in a convex shape, the small end of the second transverse rib is inserted into the first gap and connected to the first plate body and the second plate body respectively, and the large end of the second transverse rib is connected to the first plate body, the second plate body and the first cover plate respectively.

[0038] Further, the third transverse rib is in a convex shape, the small end of the third transverse rib is inserted into the second gap and is respectively connected to the third plate body and the fourth plate body, and the large end of the third transverse rib is respectively connected to the third plate body, the fourth plate body and the top beam body;

[0039] The fourth transverse rib is in a convex shape, the small end of the fourth transverse rib is inserted into the second gap and is respectively connected to the third plate body and the fourth plate body, and the large end of the fourth transverse rib is respectively connected to the third plate body, the fourth plate body and the first cover plate.

[0040] On the other hand, an embodiment of the present invention provides a hydraulic support, including the aforementioned hydraulic support top beam structure.

[0041] By means of the above technical solution, the present invention has at least the following beneficial effects:

[0042] In the technical solution provided by the embodiment of the present invention, the first box body is covered by the connection intersection formed by connecting one end of the first cover plate with the front transverse reinforcement, the inner main reinforcement and the outer main reinforcement, and the second box body is covered by the connection intersection formed by connecting the other end of the first cover plate with the rear transverse reinforcement, the inner main reinforcement and the outer main reinforcement, and the first box body and the second box body are respectively connected to the first cover plate, the inner main reinforcement, the outer main reinforcement and the top beam body. That is to say, the first box body and the second box body can wrap the connection intersection where stress is concentrated. Since the box body located on the outside is subjected to a larger torque, it will be subjected to a larger force first, while the connection intersection located inside the box body is subjected to a smaller torque and will be subjected to a smaller force later. Therefore, each box body shares the force received at the connection intersection, improves the stress concentration at the connection intersection, thereby avoiding cracking accidents at the connection intersection, and improving the bearing capacity at the column cap position of the top beam, thereby improving the overall bending and torsional resistance of the top beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0044] Figure 1 A schematic structural diagram of a top beam structure of a hydraulic support provided by an embodiment of the present invention;

[0045] Figure 2 A schematic cross-sectional view of a top beam structure of a hydraulic support provided by an embodiment of the present invention;

[0046] Figure 3 A schematic diagram of the three-dimensional structure of a top beam structure of a hydraulic support provided by an embodiment of the present invention;

[0047] Figure 4 A schematic structural diagram of the corresponding outer main reinforcement and inner main reinforcement in a top beam structure of a hydraulic support provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0052] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a hydraulic support top beam structure, including a first box body 1, a second box body 2, a recessed first cover plate 3, and a top beam body 4, inner main reinforcement 5, outer main reinforcement 6, front transverse reinforcement 7 and rear transverse reinforcement 8 that are interconnected; the outer periphery of the first cover plate 3 is respectively connected to the inner main reinforcement 5, the outer main reinforcement 6, the front transverse reinforcement 7 and the rear transverse reinforcement 8, and connection intersections 9 are respectively formed at the end corners of the first cover plate 3; the first box body 1 is covered at the connection intersection 9 at one end of the first cover plate 3, and the first box body 1 is respectively connected to the first cover plate 3, the inner main reinforcement 5, the outer main reinforcement 6 and the top beam body 4; the second box body 2 is covered at the connection intersection 9 at the other end of the first cover plate 3, and the second box body 2 is respectively connected to the first cover plate 3, the inner main reinforcement 5, the outer main reinforcement 6 and the top beam body 4.

[0053] Among them, the front transverse ribs 7, the rear transverse ribs 8, the inner main ribs 5 and the outer main ribs 6 can be connected to the top beam body 4 in a staggered manner, and the concave first cover plate 3 can be a trapezoidal plate, and the first cover plate 3 can be connected to the space surrounded by the front transverse ribs 7, the rear transverse ribs 8, the inner main ribs 5 and the outer main ribs 6. The column cap can be set on the bottom plate of the first cover plate 3, and the first box body 1 can be connected to an inclined panel of the first cover plate 3, and the second box body 2 can be connected to another inclined panel of the first cover plate 3. Specifically, the connection intersections 9 between the first cover plate 3 and the front transverse ribs 7, the rear transverse ribs 8, the inner main ribs 5 and the outer main ribs 6 can be four located at the four corners thereof, and the first box body 1 can be covered outside the two connection intersections 9 located at one end of the first cover plate 3, and the second box body 2 can be covered outside the two connection intersections 9 located at the other end of the first cover plate 3.

[0054] In the hydraulic support top beam structure provided by the embodiment of the present invention, the first box body 1 is covered by the connection intersection 9 formed by connecting one end of the first cover plate 3 with the front transverse reinforcement 7, the inner main reinforcement 5 and the outer main reinforcement 6, and the second box body 2 is covered by the connection intersection 9 formed by connecting the other end of the first cover plate 3 with the rear transverse reinforcement 8, the inner main reinforcement 5 and the outer main reinforcement 6, and the first box body 1 and the second box body 2 are respectively connected to the first cover plate 3, the inner main reinforcement 5, the outer main reinforcement 6 and the top beam body 4, that is, the first box body 1 and the second box body 2 can wrap the stress concentrated connection intersection 9 inside, because the box body located outside is subjected to a larger torque, it will be subjected to a larger force first, and the connection intersection 9 located inside the box body is subjected to a smaller torque, and will be subjected to a smaller force later, so that each box body shares the force received at the connection intersection 9, improves the stress concentration at the connection intersection 9, thereby avoiding the cracking accident at the connection intersection 9, and improves the bearing capacity at the column cap position of the top beam, thereby improving the overall bending and torsion resistance of the top beam.

[0055] In an alternative embodiment, see Figure 1 , Figure 2 and Figure 3 The first box body 1 may include a first plate body 11, a second plate body 12, a first transverse rib 13 and a second transverse rib 14; the first plate body 11 may be extended based on the outer main rib 6 in the direction of the inner main rib 5, and the second plate body 12 may be extended based on the inner main rib 5 in the direction of the outer main rib 6; the first plate body 11 and the second plate body 12 are opposite to and connected to each other, and cover the connection intersection 9 at one end of the first cover plate 3; the first transverse rib 13 is located on one side of the first plate body 11 and the second plate body 12, and is respectively connected to the first plate body 11, the second plate body 12 and the top beam body 4; the second transverse rib 14 is located on the other side of the first plate body 11 and the second plate body 12, and is respectively connected to the first plate body 11, the second plate body 12 and the first cover plate 3.

[0056] In the above embodiment, the first plate body 11, the second plate body 12, the first transverse rib 13 and the second transverse rib 14 form the first box body 1, and the first transverse rib 13 is connected to the top beam body 4, and the second transverse rib 14 is connected to the first cover plate 3, which is equivalent to wrapping the connection intersection 9 in a closed space, thereby improving the bending and torsion resistance of the first box body 1, thereby better improving the stress concentration at the connection intersection 9, thereby better avoiding cracking accidents at the connection intersection 9.

[0057] In an alternative embodiment, see Figure 3 and Figure 4 The first plate body 11 is integrally connected to the outer main rib 6, and the first plate body 11 extends along an arc trajectory; the end face of the first plate body 11 is smoothly connected to the end face of the outer main rib 6 to form a first arc structure 111; the second plate body 12 is integrally connected to the inner main rib 5, and the second plate body 12 extends along an arc trajectory; the end face of the second plate body 12 is smoothly connected to the end face of the inner main rib 5 to form a second arc structure 112.

[0058] According to the above embodiment, by setting the first plate body 11 and the second plate body 12 to extend along an arc trajectory and setting an arc structure at the root of the two, there are no sharp angles between the first plate body 11 and the second plate body 12 and the outer main reinforcement 6 and the inner main reinforcement 5, which effectively avoids the stress concentration point in the first box body 1, thereby further improving the bending and torsion resistance of the first box body 1, thereby better improving the stress concentration at the connection intersection 9, thereby better avoiding the occurrence of cracking accidents at the connection intersection 9.

[0059] In an alternative embodiment, see Figure 1 , Figure 3 and Figure 4 The first box body 1 may further include a second cover plate 15; a first gap may be provided between the first plate body 11 and the second plate body 12, and the first plate body 11 and the second plate body 12 are connected to each other through the second cover plate 15; specifically, one end of the second cover plate 15 may overlap with the first plate body 11 and be connected to each other, and the other end of the second cover plate 15 may overlap with the second plate body 12 and be connected to each other.

[0060] In the above embodiment, the first plate body 11 and the second plate body 12 are connected by the second cover plate 15, and the second cover plate 15 and the first plate body 11 and the second plate body 12 have overlapping connection parts, which improves the connection strength of the first box body 1, thereby further improving the bending and torsion resistance of the first box body 1, thereby better improving the stress concentration at the connection intersection 9, thereby better avoiding the occurrence of cracking accidents at the connection intersection 9. Specifically, the second cover plate 15 can overlap the outer surfaces of the first plate body 11 and the second plate body 12.

[0061] In an alternative embodiment, the first plate 11 and the second plate 12 may be butted against each other and then connected to a second cover plate 15 on their outer surfaces, thereby further improving the connection strength of the first box 1 and further improving the bending and torsion resistance of the first box 1.

[0062] In another alternative embodiment, the first plate body 11 and the second plate body 12 can also be connected as one piece, and the second cover plate 15 can be connected to the outer surfaces of the two, or the second cover plate 15 can be cancelled, which can also improve the connection strength of the first box body 1, thereby further improving the bending and torsion resistance of the first box body 1.

[0063] In an alternative embodiment, see Figure 1 , Figure 2 and Figure 3 The second box body 2 may include a third plate body 21, a fourth plate body 22, a third transverse rib 23 and a fourth transverse rib 24; the third plate body 21 may be extended based on the outer main rib 6 in the direction of the inner main rib 5, and the fourth plate body 22 may be extended based on the inner main rib 5 in the direction of the outer main rib 6; the third plate body 21 and the fourth plate body 22 are opposite and connected to each other, and cover the connection intersection 9 at the other end of the first cover plate 3; the third transverse rib 23 is located on one side of the third plate body 21 and the fourth plate body 22, and is respectively connected to the third plate body 21, the fourth plate body 22 and the top beam body 4; the fourth transverse rib 24 is located on the other side of the third plate body 21 and the fourth plate body 22, and is respectively connected to the third plate body 21, the fourth plate body 22 and the first cover plate 3.

[0064] In the above embodiment, the third plate body 21, the fourth plate body 22, the third transverse rib 23 and the fourth transverse rib 24 form the second box body 2, and the third transverse rib 23 is connected to the top beam body 4, and the fourth transverse rib 24 is connected to the first cover plate 3, which is equivalent to wrapping the connection intersection 9 in a closed space, thereby improving the bending and torsion resistance of the second box body 2, thereby better improving the stress concentration at the connection intersection 9, thereby better avoiding cracking accidents at the connection intersection 9.

[0065] In an alternative embodiment, see Figure 3 and Figure 4 The third plate body 21 is integrally connected to the outer main rib 6, and the third plate body 21 extends along an arc trajectory; the end face of the third plate body 21 is smoothly connected to the end face of the outer main rib 6 to form a third arc structure 211; the fourth plate body 22 is integrally connected to the inner main rib 5, and the fourth plate body 22 extends along an arc trajectory; the end face of the fourth plate body 22 is smoothly connected to the end face of the inner main rib 5 to form a fourth arc structure 212.

[0066] According to the above embodiment, by setting the third plate body 21 and the fourth plate body 22 to extend along an arc trajectory and setting an arc structure at the root of the two, there are no sharp corners between the third plate body 21 and the fourth plate body 22 and the outer main ribs 6 and the inner main ribs 5, which effectively avoids the stress concentration point in the second box body 2, thereby further improving the bending and torsion resistance of the second box body 2, thereby better improving the stress concentration at the connection intersection 9, thereby better avoiding cracking accidents at the connection intersection 9.

[0067] In an alternative embodiment, see Figure 1 , Figure 3 and Figure 4 The second box body 2 may further include a third cover plate 25; a second gap may be provided between the third plate body 21 and the fourth plate body 22, and the third plate body 21 and the fourth plate body 22 are interconnected through the third cover plate 25; specifically, one end of the third cover plate 25 may overlap with the third plate body 21 and be interconnected, and the other end of the third cover plate 25 may overlap with the fourth plate body 22 and be interconnected.

[0068] In the above embodiment, the third plate 21 and the fourth plate 22 are connected by the third cover plate 25, and the third cover plate 25 and the third plate 21 and the fourth plate 22 have overlapping connection parts, which improves the connection strength of the second box 2, thereby further improving the bending and torsion resistance of the second box 2, thereby better improving the stress concentration at the connection intersection 9, thereby better avoiding the occurrence of cracking accidents at the connection intersection 9. Specifically, the third cover plate 25 can overlap the outer surfaces of the third plate 21 and the fourth plate 22.

[0069] In an alternative embodiment, the third plate 21 and the fourth plate 22 may be butted against each other and then connected with a third cover plate 25 on their outer surfaces, thereby further improving the connection strength of the second box 2 and further improving the bending and torsional resistance of the second box 2.

[0070] In another alternative embodiment, the third plate body 21 and the fourth plate body 22 can also be connected as one piece, and the third cover plate 25 can be connected to the outer surfaces of the two, or the third cover plate 25 can be cancelled, which can also improve the connection strength of the second box body 2, thereby further improving the bending and torsion resistance of the second box body 2.

[0071] In an alternative embodiment, see Figure 3The first transverse rib 13 can be in a convex shape, and the small end 131 of the first transverse rib 13 can be inserted into the first gap and respectively connected to the first plate body 11 and the second plate body 12, and the large end 132 of the first transverse rib 13 can be respectively connected to the first plate body 11, the second plate body 12 and the top beam body 4; the second transverse rib 14 can be in a convex shape, and the small end of the second transverse rib 14 can be inserted into the first gap and respectively connected to the first plate body 11 and the second plate body 12, and the large end of the second transverse rib 14 can be respectively connected to the first plate body 11, the second plate body 12 and the first cover plate 3.

[0072] In the above embodiment, by setting the first transverse rib 13 and the second transverse rib 14 as a convex structure, when connected with the first plate 11 and the second plate 12, the small end thereof can block the first gap between the first plate 11 and the second plate 12, thereby improving the sealing property of the first box 1, and further improving the bending and torsion resistance of the first box 1, thereby better improving the stress concentration at the connection intersection 9, and better avoiding the cracking accident at the connection intersection 9. Among them, since the first plate 11 and the second plate 12 both extend along an arc track, in this embodiment, in order to enable the first transverse rib 13 and the second transverse rib 14 to be connected to the first plate 11 and the second plate 12 in an adaptive manner, the large ends of the first transverse rib 13 and the second transverse rib 14 can be set to arcs that are compatible with the first plate 11 and the second plate 12, thereby better improving the sealing property of the first box 1, and further improving the bending and torsion resistance of the first box 1.

[0073] In an alternative embodiment, see Figure 3 The third transverse rib 23 can be in a convex shape, the small end of the third transverse rib 23 can be inserted into the second gap and respectively connected to the third plate body 21 and the fourth plate body 22, and the large end of the third transverse rib 23 can be respectively connected to the third plate body 21, the fourth plate body 22 and the top beam body 4; the fourth transverse rib 24 can be in a convex shape, the small end 241 of the fourth transverse rib 24 can be inserted into the second gap and respectively connected to the third plate body 21 and the fourth plate body 22, and the large end 242 of the fourth transverse rib 24 can be respectively connected to the third plate body 21, the fourth plate body 22 and the first cover plate 3.

[0074] In the above embodiment, by setting the third transverse rib 23 and the fourth transverse rib 24 as a convex structure, when connected with the third plate body 21 and the fourth plate body 22, the small end thereof can block the second gap between the third plate body 21 and the fourth plate body 22, thereby improving the sealing property of the second box body 2, and further improving the bending and torsion resistance of the second box body 2, thereby better improving the stress concentration at the connection intersection 9, and better avoiding the cracking accident at the connection intersection 9. Among them, since the third plate body 21 and the fourth plate body 22 both extend along an arc track, in this embodiment, in order to enable the third transverse rib 23 and the fourth transverse rib 24 to be connected to the third plate body 21 and the fourth plate body 22 in an adaptive manner, the large ends of the third transverse rib 23 and the fourth transverse rib 24 can be set to arcs that are compatible with the third plate body 21 and the fourth plate body 22, thereby better improving the sealing property of the second box body 2, and further improving the bending and torsion resistance of the second box body 2.

[0075] An embodiment of the present invention further provides a hydraulic support, comprising the aforementioned hydraulic support top beam structure.

[0076] The hydraulic support provided in the embodiment of the present invention includes a hydraulic support top beam structure, in which the first box body 1 is covered at a connection intersection 9 formed by connecting one end of the first cover plate 3 with the front transverse reinforcement 7, the inner main reinforcement 5 and the outer main reinforcement 6, and the second box body 2 is covered at a connection intersection 9 formed by connecting the other end of the first cover plate 3 with the rear transverse reinforcement 8, the inner main reinforcement 5 and the outer main reinforcement 6, and the first box body 1 and the second box body 2 are respectively connected to the first cover plate 3, the inner main reinforcement 5, the outer main reinforcement 6 and the top beam body 4, that is, the first box body 1 and the second box body 2 are respectively connected to the first cover plate 3, the inner main reinforcement 5, the outer main reinforcement 6 and the top beam body 4, that is, the first box body 1 and the second box body 2 The connection intersection 9 where stress is concentrated can be wrapped inside. Since the box located outside is subjected to a larger torque, it will be subjected to a larger force first, while the connection intersection 9 located inside the box is subjected to a smaller torque, and will be subjected to a smaller force later. As a result, each box shares the force applied to the connection intersection 9, improving the stress concentration at the connection intersection 9, thereby avoiding cracking accidents at the connection intersection 9, improving the bearing capacity of the column cap position of the top beam, and thereby improving the overall bending and torsion resistance of the top beam.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A top beam structure of a hydraulic support, characterized in that: include: A first box body, a second box body, a concave first cover plate, and a top beam body, inner main reinforcement, outer main reinforcement, front transverse reinforcement and rear transverse reinforcement connected to each other; the front transverse reinforcement, the rear transverse reinforcement, the inner main reinforcement and the outer main reinforcement are connected to the top beam body in a staggered manner in a horizontal and vertical manner; The outer periphery of the first cover plate is respectively connected to the inner main rib, the outer main rib, the front transverse rib and the rear transverse rib, and connection intersections are respectively formed at the end corners of the first cover plate; The first box body is covered on the connection intersection at one end of the first cover plate, and the first box body is respectively connected to the first cover plate, the inner main reinforcement, the outer main reinforcement and the top beam body; The second box body is covered on the connection intersection at the other end of the first cover plate, and the second box body is respectively connected to the first cover plate, the inner main reinforcement, the outer main reinforcement and the top beam body; The first box body includes a first plate body, a second plate body, a first transverse rib and a second transverse rib; The first plate body is extended based on the outer main ribs toward the inner main ribs, and the second plate body is extended based on the inner main ribs toward the outer main ribs; The first plate body and the second plate body are opposite to each other and connected to each other, and cover the connection intersection at one end of the first cover plate; The first transverse rib is located on one side of the first plate body and the second plate body, and is respectively connected to the first plate body, the second plate body and the top beam body; The second transverse rib is located at the other side of the first plate body and the second plate body, and is respectively connected to the first plate body, the second plate body and the first cover plate.

2. The top beam structure of the hydraulic support according to claim 1, characterized in that: The first plate body is integrally connected to the outer main rib, and the first plate body extends along an arc track; The end surface of the first plate body is smoothly transitionally connected to the end surface of the outer main rib; The second plate body is integrally connected to the inner main rib, and the second plate body extends along an arc track; The end surface of the second plate body is smoothly transitionally connected to the end surface of the inner main rib.

3. The top beam structure of the hydraulic support according to claim 1, characterized in that: The first box body also includes a second cover plate; There is a first gap between the first plate body and the second plate body, and the first plate body and the second plate body are connected to each other through the second cover plate; One end of the second cover plate is overlapped with the first plate body and connected to each other, and the other end of the second cover plate is overlapped with the second plate body and connected to each other.

4. The top beam structure of the hydraulic support according to claim 1, characterized in that: The second box body includes a third plate body, a fourth plate body, a third transverse rib and a fourth transverse rib; The third plate body is extended based on the outer main ribs toward the inner main ribs, and the fourth plate body is extended based on the inner main ribs toward the outer main ribs; The third plate body and the fourth plate body are opposite to each other and connected to each other, and cover the connection intersection at the other end of the first cover plate; The third transverse rib is located at one side of the third plate body and the fourth plate body, and is respectively connected to the third plate body, the fourth plate body and the top beam body; The fourth transverse rib is located at the other side of the third plate body and the fourth plate body, and is respectively connected to the third plate body, the fourth plate body and the first cover plate.

5. The top beam structure of the hydraulic support according to claim 4, characterized in that: The third plate body is integrally connected with the outer main rib, and the third plate body extends along an arc track; The end surface of the third plate body is smoothly transitionally connected to the end surface of the outer main rib; The fourth plate body is integrally connected with the inner main rib, and the fourth plate body extends along an arc track; The end surface of the fourth plate body is smoothly transitionally connected to the end surface of the inner main rib.

6. The top beam structure of the hydraulic support according to claim 4, characterized in that: The second box body also includes a third cover plate; A second gap is provided between the third plate body and the fourth plate body, and the third plate body and the fourth plate body are connected to each other through the third cover plate; One end of the third cover plate is overlapped with the third plate body and connected to each other, and the other end of the third cover plate is overlapped with the fourth plate body and connected to each other.

7. The top beam structure of the hydraulic support according to claim 3, characterized in that: The first transverse rib is in a convex shape, the small end of the first transverse rib is inserted into the first gap and connected to the first plate body and the second plate body respectively, and the large end of the first transverse rib is connected to the first plate body, the second plate body and the top beam body respectively; The second transverse rib is in a convex shape, the small end of the second transverse rib is inserted into the first gap and connected to the first plate body and the second plate body respectively, and the large end of the second transverse rib is connected to the first plate body, the second plate body and the first cover plate respectively.

8. The top beam structure of the hydraulic support according to claim 6, characterized in that: The third transverse rib is in a convex shape, the small end of the third transverse rib is inserted into the second gap and is respectively connected to the third plate body and the fourth plate body, and the large end of the third transverse rib is respectively connected to the third plate body, the fourth plate body and the top beam body; The fourth transverse rib is in a convex shape, the small end of the fourth transverse rib is inserted into the second gap and is respectively connected to the third plate body and the fourth plate body, and the large end of the fourth transverse rib is respectively connected to the third plate body, the fourth plate body and the first cover plate.

9. A hydraulic support, characterized in that: include: A hydraulic support top beam structure as claimed in any one of claims 1 to 8.

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