Top supporting structure of hydraulic support

Abstract

The utility model discloses a hydraulic support top supporting structure which comprises a top beam and a hinged beam, the top beam comprises a first top plate, the first top plate is provided with a step face and a first top face used for supporting coal gangue, and the step face is lower than the first top face; the hinged beam is hinged to the top beam and comprises a second top plate, and the second top plate is provided with an extending part and a second top surface used for supporting coal gangue; wherein the step surface is arranged on the side, close to the second top plate, of the first top plate, and when the second top surface and the first top surface are both in a horizontal state, the extension part is arranged on the upper side of the step surface. According to the top supporting structure of the hydraulic support, coal gangue can be prevented from falling down through the step face, so that the coal gangue is difficult to enter the hydraulic support, and the influence on the hydraulic support and pedestrians and equipment on the working face can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic support, specifically relates to a hydraulic support top support structure. BACKGROUND

[0002] The top support structure of the hydraulic support includes a top beam and a hinged beam, and a large gap is left between the top plate of the hinged beam and the top plate of the top beam, so that coal gangue above the top plate directly enters the interior of the hydraulic support through the gap and accumulates on the hydraulic support base and the working face equipment, thereby affecting the pedestrians and equipment inside the working face. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the related art at least to some extent.

[0004] Therefore, the embodiment of the utility model provides a top support structure of a hydraulic support, a stepped surface can block coal gangue from falling downward, so that the coal gangue is difficult to enter the interior of the hydraulic support, thereby reducing the influence on the hydraulic support and the pedestrians and equipment of the working face.

[0005] The top support structure of the hydraulic support in the embodiment of the utility model includes a top beam and a hinged beam, the top beam includes a first top plate, the first top plate has a stepped surface and a first top surface for supporting coal gangue, and the stepped surface is lower than the first top surface; the hinged beam is hinged to the top beam, and the hinged beam includes a second top plate, the second top plate has an extension and a second top surface for supporting coal gangue; wherein the stepped surface is arranged on one side of the first top plate close to the second top plate, and when the second top surface and the first top surface are both in a horizontal state, the extension is arranged on the upper side of the stepped surface.

[0006] In some embodiments, the hinged beam is rotatable relative to the top beam, so that the hinged beam has a first limit state and a second limit state; in the first limit state, the second top surface is arranged obliquely, and one side of the second top surface away from the first top plate is higher than the first top surface; in the second limit state, the height of the second top surface is lower than that of the first top surface, and the second top surface is arranged vertically.

[0007] In some embodiments, the extension has an extension side, a first slope surface and a second slope surface, the extension side is the side of the first top plate facing the second top plate, in the first limit state, the first slope surface is arranged on the lower side of the extension side, and the second slope surface is arranged on the upper side of the extension side.

[0008] In some embodiments, the top beam comprises a first lug plate and a first arc plate, the articulated beam comprises a second lug plate and a second arc plate, the first lug plate and the second lug plate are hinged by a hinge shaft, the first lug plate and the second lug plate are alternately arranged along the hinge shaft;

[0009] The first arc plate has a first arc surface arranged towards the second lug plate, the second lug plate has a second lug surface arranged in an arc shape towards the first arc plate, the bending direction of the first arc surface and the second lug surface is the same; and / or the second arc plate has a second arc surface arranged towards the first lug plate, the first lug plate has a first lug surface arranged in an arc shape towards the second arc plate, the bending direction of the second arc surface and the first lug surface is the same.

[0010] In some embodiments, a connecting surface is connected between the first top surface and the step surface, when the first top surface and the second top surface are both in a horizontal state, the extending side surface and the connecting surface form a first gap A1, the first gap A1 is 0-30mm.

[0011] In some embodiments, when the first top surface and the second top surface are both in a horizontal state, the minimum gap between the second slope surface and the step surface is a second gap A2, the second gap A2 is 0-10mm.

[0012] In some embodiments, the first arc surface and the second lug surface are coaxially arranged, the first arc surface and the second lug surface form a third gap A3, the third gap A3 is 0-15mm.

[0013] In some embodiments, the first arc surface and the second lug surface are coaxially arranged, the first arc surface and the second lug surface form a third gap A3, the third gap A3 is 0-15mm.

[0014] In some embodiments, the lower side of the first top plate has a third slope surface, when the articulated beam is in the second limit state, the minimum gap between the second lug surface and the third slope surface is a fifth gap A5, the fifth gap A5 is 0-15mm.

[0015] In some embodiments, the articulated beam further comprises a third lug plate for mounting an oil cylinder, the top beam has a first gap surface and a second gap surface, the first gap surface and the second gap surface are intersectingly arranged and form a clearance slot, when the articulated beam is in the second limit state, the third lug plate is arranged in the clearance slot; the minimum gap between the third lug plate and the first gap surface is a sixth gap A6, the sixth gap A6 is 0-15mm; and / or the minimum gap between the third lug plate and the second gap surface is a seventh gap A7, the seventh gap A7 is 0-20mm.

[0016] The hydraulic support top support structure of the embodiment of the present application, when the first top surface and the second top surface are both in a horizontal state, is in a normal support state of the hinged beam, and the first top plate and the second top plate simultaneously support the coal gangue in the normal support state; at this time, the first top plate and the second top plate form a first gap A1, the first gap A1 is arranged on the upper side of the stepped surface, and the coal gangue is blocked by the stepped surface from continuing to fall downward after passing through the first gap A1, so that the coal gangue is difficult to enter the interior of the hydraulic support, thereby reducing the influence on the hydraulic support and the personnel and equipment on the working face. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure schematic view of the first ear plate of the hydraulic support top support structure of an embodiment of the present application extending into the hinged beam (the hinged beam is in a normal support state).

[0018] Figure 2 is Figure 1 an enlarged schematic view of position A in the above.

[0019] Figure 3 is a structure schematic view of the second ear plate of the hydraulic support top support structure of an embodiment of the present application extending into the top beam (the hinged beam is in a normal support state).

[0020] Figure 4 is Figure 3 an enlarged schematic view of position B in the above.

[0021] Figure 5 is a schematic view of the hinged beam of the hydraulic support top support structure of an embodiment of the present application being in a first limit state.

[0022] Figure 6 is a schematic view of the hinged beam of the hydraulic support top support structure of an embodiment of the present application being in a second limit state.

[0023] Figure 7 is a structure schematic view of the hinged beam of the hydraulic support top support structure of an embodiment of the present application.

[0024] Figure 8 is a structure schematic view of the top beam of the hydraulic support top support structure of an embodiment of the present application.

[0025] REFERENCE SIGNS:

[0026] 100, hydraulic support top support structure;

[0027] 1, top beam; 11, first top plate; 111, stepped surface; 112, first top surface; 113, third slope surface; 114, connecting surface; 12, first ear plate; 121, first ear surface; 13, first arc plate; 131, first arc surface; 14, first gap surface; 15, second gap surface;

[0028] 2. Hinged beam; 21. Second top plate; 211. Extension; 2111. Extension side; 2112. First slope; 2113. Second slope; 212. Second top surface; 22. Second ear plate; 221. Second ear surface; 23. Second arc plate; 231. Second arc surface; 24. Third ear plate. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1 to 4 As shown, the hydraulic support top support structure 100 of this utility model embodiment includes a top beam 1 and a hinged beam 2. The top beam 1 includes a first top plate 11, which has a stepped surface 111 and a first top surface 112 for supporting coal gangue. The stepped surface 111 is lower than the first top surface 112. The hinged beam 2 is hinged to the top beam 1. The hinged beam 2 includes a second top plate 21, which has an extension 211 and a second top surface 212 for supporting coal gangue. The stepped surface 111 is located on the side of the first top plate 11 close to the second top plate 21. When both the second top surface 212 and the first top surface 112 are in a horizontal state, the extension 211 is arranged on the upper side of the stepped surface 111.

[0031] In the hydraulic support top support structure 100 of this embodiment, when both the first top surface 112 and the second top surface 212 are in a horizontal state, it is the normal support state of the hinged beam 2. The first top plate 11 and the second top plate 21 are simultaneously supported by coal gangue. At this time, the first top plate 11 and the second top plate 21 form a first gap A1. The first gap A1 is arranged on the upper side of the step surface 111. After the coal gangue passes through the first gap A1, the step surface 111 can prevent the coal gangue from falling further downward, making it difficult for the coal gangue to enter the hydraulic support, thereby reducing the impact on the hydraulic support, as well as pedestrians and equipment at the working face.

[0032] As an example, such as Figure 2 As shown, the first top plate 11 is made of two layers of plates arranged vertically on the side near the hinge beam 2, with the lower plate extending toward the hinge beam 2 to form the aforementioned stepped surface 111.

[0033] In some embodiments, such as Figure 5 and Figure 6As shown, the hinged beam 2 is rotatable relative to the top beam 1, so that the hinged beam 2 has a first limit state and a second limit state; in the first limit state, the second top surface 212 is arranged at an angle, and the side of the second top surface 212 away from the first top plate 11 is higher than the first top surface 112; in the second limit state, the height of the second top surface 212 is lower than the first top surface 112, and the second top surface 212 is arranged vertically.

[0034] like Figure 5 As shown, when the hinged beam 2 is in its first extreme state, it is arranged inclined upwards relative to the top beam 1. When a sudden situation such as a collapse occurs in the top coal gangue, switching the hinged beam 2 to the first extreme state can provide better support for the top coal gangue; as Figure 6 As shown, when the hinged beam 2 is in the second limit state, the hinged beam 2 hangs freely. By hanging the hinged beam 2, the overall length of the hydraulic support can be reduced, creating conditions for the transportation of the hydraulic support.

[0035] The length direction of the hydraulic support refers to the direction that extends horizontally and is perpendicular to the hinge axis of the hinge beam 2.

[0036] It is understandable that the normal support state of the hinged beam 2 is between the first limit state and the second limit state.

[0037] Optionally, when the hinged beam 2 is in the first limit state, the second top surface 212 and the first top surface 112 form a limit angle, which is 160° to 170°, for example 162°, 165°, 167°, or 169°.

[0038] This prevents the hinged beam 2 from rotating too much upwards and affecting the support of the first top plate 11.

[0039] In some embodiments, such as Figure 5 and Figure 7 As shown, the extension 211 has an extension side 2111, a first slope 2112, and a second slope 2113. The extension side 2111 is the side of the first top plate 11 facing the second top plate 21. In the first extreme state, the first slope 2112 is arranged on the lower side of the extension side 2111, and the second slope 2113 is arranged on the upper side of the extension side 2111.

[0040] By setting the first slope 2112, the extension 211 of the articulated beam 2 can be prevented from colliding with the step surface 111 when it is in the first extreme state. As a result, the length of the extension 211 can be increased as much as possible, the size of the first gap A1 can be reduced, and the purpose of preventing coal gangue from falling into the hydraulic support can be achieved.

[0041] By setting the second slope surface 2113, the extension part 211 can be prevented from colliding with the connecting surface 114 (the connecting surface 114 is a vertical side surface connected to the first top surface 112 and the step surface 111) when the articulated beam 2 is in the first limit state; thereby, the length of the extension part 211 can be further increased.

[0042] As shown in the drawings, the articulated beam 2 is in the first limit state, the intersection of the extension side surface 2111 and the first slope surface 2112 abuts against the connecting surface 114, the position of the articulated beam 2 can be limited, at this time, the second slope surface 2113 is parallel to the step surface 111. Figure 5

[0043] Of course, in other embodiments, the second slope surface 2113 can also be relatively inclined to the step surface 111 when the articulated beam 2 is in the first limit state, as long as the second slope surface 2113 does not collide with the step surface 111.

[0044] In some embodiments, as shown in the drawings, Figure 2 and Figure 3 The top beam 1 includes a first ear plate 12 and a first arc plate 13, the articulated beam 2 includes a second ear plate 22 and a second arc plate 23, the first ear plate 12 and the second ear plate 22 are hinged through a hinge shaft; the first arc plate 13 has a first arc surface 131 arranged towards the second ear plate 22, the second ear plate 22 has a second ear surface 221 arranged towards the first arc plate 13 in an arc shape, the bending directions of the first arc surface 131 and the second ear surface 221 are the same; and / or the second arc plate 23 has a second arc surface 231 arranged towards the first ear plate 12, the first ear plate 12 has a first ear surface 121 arranged towards the second arc plate 23 in an arc shape, the bending directions of the second arc surface 231 and the first ear surface 121 are the same.

[0045] It is known that after the coal gangue passes through the first gap A1 and the second gap A2, part of the coal gangue falls downward to the inside of the hydraulic support through the gap between the first ear plate 12 and the articulated beam 2, and another part of the coal gangue falls downward to the inside of the hydraulic support through the gap between the second ear plate 22 and the top beam 1.

[0046] By setting the first arc plate 13 and the bending directions of the first arc surface 131 and the second ear surface 221 being the same, the minimum gap between the first arc surface 131 and the second ear surface 221 is the third gap A3, since the shapes of the first arc plate 13 and the second ear plate 22 are matched, the third gap A3 is small, which can block the coal gangue falling into the third gap A3.

[0047] ​By setting the second arc plate 23, and the bending direction of the second arc surface 231 is the same as the first ear surface 121, the minimum gap between the second arc surface 231 and the first ear surface 121 is the fourth gap A4, because the shape of the second arc plate 23 and the first ear plate 12 is matched, so that the fourth gap A4 is small, which can block the coal gangue falling into the fourth gap A4.

[0048] Therefore, the coal gangue falling into the hydraulic support can be further blocked, and the influence on the hydraulic support and the working face pedestrians and equipment is reduced.

[0049] As shown in Figure 7 and Figure 8 , the number of the first ear plate 12 and the second ear plate 22 is multiple, and the multiple first ear plate 12 and the second ear plate 22 are arranged alternately along the axis direction of the hinge shaft, which can realize the stable connection between the hinge beam 2 and the top beam 1.

[0050] Among them, the first arc plate 13 and the second ear plate 22 are correspondingly arranged, and the second arc plate 23 and the first ear plate 12 are also correspondingly arranged along the length direction of the hydraulic support.

[0051] It can be understood that the shape of the first arc plate 13 and the second arc plate 23 can be adaptively adjusted according to the actual installation requirement of those skilled in the art.

[0052] In some embodiments, as shown in Figure 2 and Figure 4 , the connecting surface 114 is connected between the first top surface 112 and the step surface 111, and when the first top surface 112 and the second top surface 212 are both in the horizontal state, the extension side surface 2111 and the connecting surface 114 form the first gap A1, and the first gap A1 is 0-30mm.

[0053] By limiting the size of the first gap A1, it can be blocked that the large coal gangue passes through the first gap A1, and then the large coal gangue enters the inside of the hydraulic support to cause the damage of the hydraulic support.

[0054] In some embodiments, as shown in Figure 2 and Figure 4 , when the first top surface 112 and the second top surface 212 are both in the horizontal state, the minimum gap between the second slope surface 2113 and the step surface 111 is the second gap A2, and the second gap A2 is 0-10mm.

[0055] By limiting the size of the second gap A2, it can be blocked that the large coal gangue passes through the second gap A2, and then the large coal gangue enters the inside of the hydraulic support to cause the damage of the hydraulic support.

[0056] In some embodiments, as shown in Figure 2As shown, the first arc surface 131 is coaxially arranged with the second ear surface 221, and the first arc surface 131 and the second ear surface 221 form a third gap A3, and the third gap A3 is 0-15 mm.

[0057] By limiting the size of the third gap A3, large coal gangue can be blocked from passing through the third gap A3, and then large coal gangue is blocked from entering the inside of the hydraulic support, thereby reducing the impact of coal gangue falling on the hydraulic support and pedestrians and equipment on the working face.

[0058] In addition, the height of the fillet weld of the first arc plate 13 is not less than 12 mm, thereby further blocking large coal gangue from entering the inside of the hydraulic support through the gap between the second ear plate 22 and the first arc plate 13.

[0059] In some embodiments, as shown in Figure 4 As shown, the second arc surface 231 is coaxially arranged with the first ear surface 121, and the second arc surface 231 and the first ear surface 121 form a fourth gap A4, and the fourth gap A4 is 0-15 mm.

[0060] By limiting the size of the third gap A4, large coal gangue can be blocked from passing through the fourth gap A4, and then large coal gangue is blocked from entering the inside of the hydraulic support, thereby reducing the impact of coal gangue falling on the hydraulic support and pedestrians and equipment on the working face.

[0061] In addition, the height of the fillet weld of the second arc plate 23 is not less than 12 mm, thereby further blocking large coal gangue from entering the inside of the hydraulic support through the gap between the first ear plate 12 and the second arc plate 23.

[0062] In some embodiments, as shown in Figure 6 As shown, the lower side of the first top plate 11 has a third slope surface 113, and when the articulated beam 2 is in the second limit state, the minimum gap between the second ear surface 221 and the third slope surface 113 is a fifth gap A5, and the fifth gap A5 is 0-15 mm.

[0063] Through the above setting, when the articulated beam 2 is in the second limit state, the size of the fifth gap A5 is small, which can block coal gangue, and then block coal gangue from entering the inside of the hydraulic support.

[0064] As an example, as shown in Figure 6 As shown, the lower side of the lower side plate body of the first top plate 11 has the above-mentioned third slope surface 113, and the third slope surface 113 is arranged upwardly inclined along the direction from the top beam 1 to the articulated beam 2.

[0065] In some embodiments, as shown in Figure 5 and Figure 6As shown, the articulated beam 2 further comprises a third lug plate 24 for mounting a hydraulic cylinder, the top beam 1 has a first clearance surface 14 and a second clearance surface 15, the first clearance surface 14 and the second clearance surface 15 are arranged intersecting and form a clearance slot, the third lug plate 24 is arranged in the clearance slot when the articulated beam 2 is in the second limit state; the minimum clearance between the third lug plate 24 and the first clearance surface 14 is a sixth clearance A6, the sixth clearance A6 is 0-15mm; and / or the minimum clearance between the third lug plate 24 and the second clearance surface 15 is a seventh clearance A7, the seventh clearance A7 is 0-20mm.

[0066] Therefore, when the articulated beam 2 is in the second limit state, the coal gangue can be blocked from entering the inside of the hydraulic support through the sixth clearance A6 and the seventh clearance A7 in turn, thereby further reducing the influence of the coal gangue entering the hydraulic support on the hydraulic support and the personnel and equipment on the working face.

[0067] It can be understood that the third lug plate 24 is used for articulation with a hydraulic cylinder, the other end of the hydraulic cylinder is articulated to the top beam 1, and the articulated beam 2 can be driven to rotate between the first limit state and the second limit state by the hydraulic cylinder.

[0068] As an example, as shown, Figure 6 The top beam 1 comprises a first baffle and a second baffle, the first baffle and the second baffle are perpendicular to each other, the first baffle and the second baffle form a clearance slot for accommodating the third lug plate 24, the first baffle forms the first clearance surface 14 towards the side of the third lug plate 24, and the second baffle forms the second clearance surface 15 towards the side of the third lug plate 24.

[0069] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the changes, modifications, replacements and modifications of the above-mentioned embodiments made by those skilled in the art are within the protection scope of the utility model.

Claims

1. A hydraulic support roof support structure (100) characterized by, The utility model relates to a top beam (1) comprising a first top plate (11) having a stepped surface (111) and a first top surface (112) for supporting coal gangue, the stepped surface (111) being lower than the first top surface (112); a hinged beam (2) hinged to the top beam (1), the hinged beam (2) comprising a second top plate (21) having an extension (211) and a second top surface (212) for supporting coal gangue; wherein the stepped surface (111) is arranged on the side of the first top plate (11) close to the second top plate (21), the extension (211) being arranged on the upper side of the stepped surface (111) when the second top surface (212) and the first top surface (112) are both in a horizontal state. The hinged beam (2) is rotatable relative to the top beam (1) so that the hinged beam (2) has a first limit state and a second limit state; In the first limit state, the second top surface (212) is arranged obliquely, and the side of the second top surface (212) away from the first top plate (11) is higher than the first top surface (112); In the second limit state, the height of the second top surface (212) is lower than the first top surface (112), and the second top surface (212) is arranged vertically.

2. The hydraulic support roof support structure (100) according to claim 1, characterized in that, The extension (211) has an extension side surface (2111), a first slope surface (2112) and a second slope surface (2113), the extension side surface (2111) being the side surface of the first top plate (11) facing the second top plate (21), in the first limit state, the first slope surface (2112) being arranged on the lower side of the extension side surface (2111), and the second slope surface (2113) being arranged on the upper side of the extension side surface (2111). The top beam (1) comprises a first lug plate (12) and a first arc plate (13), the hinged beam (2) comprises a second lug plate (22) and a second arc plate (23), the first lug plate (12) and the second lug plate (22) being hinged through a hinge shaft; The first arc plate (13) has a first arc surface (131) arranged towards the second lug plate (22), the second lug plate (22) has a second lug surface (221) in an arc shape arranged towards the first arc plate (13), the bending direction of the first arc surface (131) and the second lug surface (221) being the same; and / or 3. The hydraulic support roof support structure (100) according to claim 2, characterized in that, The second arc plate (23) has a second arc surface (231) arranged towards the first lug plate (12), the first lug plate (12) has a first lug surface (121) in an arc shape arranged towards the second arc plate (23), the bending direction of the second arc surface (231) and the first lug surface (121) being the same.

4. The hydraulic support top support structure (100) according to any one of claims 1-3, characterized in that, ​ ​ ​ 5. The hydraulic support roof support structure (100) according to claim 3, characterized in that, The first top surface (112) is connected with the connecting surface (114) between the step surface (111), the first top surface (112) and the second top surface (212) are in a horizontal state, the extension side surface (2111) and the connecting surface (114) form a first gap A1, and the first gap A1 is 0-30mm.

6. The hydraulic support roof support structure (100) according to claim 3, characterized in that, The first top surface (112) and the second top surface (212) are in a horizontal state, the second slope surface (2113) and the step surface (111) have a minimum gap, which is a second gap A2, and the second gap A2 is 0-10mm.

7. The hydraulic support roof support structure (100) according to claim 4, characterized in that, The first arc surface (131) and the second ear surface (221) are coaxially arranged, the first arc surface (131) and the second ear surface (221) form a third gap A3, and the third gap A3 is 0-15mm.

8. The hydraulic support roof support structure (100) according to claim 4, characterized in that, The second arc surface (231) and the first ear surface (121) are coaxially arranged, the second arc surface (231) and the first ear surface (121) form a fourth gap A4, and the fourth gap A4 is 0-15mm.

9. The hydraulic support roof support structure (100) according to claim 4, characterized in that, The lower side of the first top plate (11) has a third slope surface (113), when the articulated beam (2) is in the second limit state, the second ear surface (221) and the third slope surface (113) have a minimum gap, which is a fifth gap A5, and the fifth gap A5 is 0-15mm.

10. The hydraulic support roof support structure (100) according to claim 2, characterized in that, The articulated beam (2) further comprises a third ear plate (24) for mounting an oil cylinder, the top beam (1) has a first gap surface (14) and a second gap surface (15), the first gap surface (14) and the second gap surface (15) are intersectingly arranged and form a clearance slot, when the articulated beam (2) is in the second limit state, the third ear plate (24) is arranged in the clearance slot; The third ear plate (24) and the first gap surface (14) have a minimum gap, which is a sixth gap A6, and the sixth gap A6 is 0-15mm; and / or The third ear plate (24) and the second gap surface (15) have a minimum gap, which is a seventh gap A7, and the seventh gap A7 is 0-20mm.

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