Hydraulic supporting device for coal mining roadway

Abstract

The utility model relates to the technical field of roadway supporting, and particularly discloses a coal mining roadway hydraulic supporting device which comprises a base, a top beam and four sets of main hydraulic telescopic rods rotationally connected between the base and the top beam. A shield mechanism is arranged on one side of the top beam and the base; a front beam and a face guard are sequentially arranged at the end, away from the shield mechanism, of the top beam, the front beam is rotationally connected with the bottom of the top beam through a front beam connecting column, and the face guard is rotationally connected with the bottom of the front beam through a face guard connecting column. Protective parts are connected to two sides of the tops of the top beam, the front beam and the side protecting plate; through independent control of the first adjusting piece and the second adjusting piece, the angle of the front beam and the angle of the side protection plate can be adjusted according to the supporting requirements of a roadway under different geological conditions, meanwhile, due to the arrangement of the front beam connecting column and the side protection plate connecting column, coal briquettes and the like entering through gaps between the top beam and the front beam and gaps between the front beam and the side protection plate are reduced, and the supporting efficiency is improved. The direct impact operation space of gravel is reduced, and the safety of the supporting device is improved.

Description

Technical Field

[0001] This utility model relates to the field of roadway support technology, specifically a hydraulic support device for coal mining roadways. Background Technology

[0002] The integral roof beam hydraulic support for coal mining faces is the core equipment for the support of fully mechanized coal mining faces. With the support of hydraulic columns, the integral roof beam directly connects to the roof, providing stable and uniform support for the directly overhead rock strata above the coal mining working space.

[0003] A coal mine working face support disclosed in patent publication number CN222576697U includes: a hydraulic support base, a horizontal top plate connected to the top of the hydraulic support base via a hydraulic cylinder, the horizontal top plate being positioned directly above the hydraulic support base, an inclined top plate mounted on one side of the top of the hydraulic support base via a connecting rod, the horizontal top plate and the inclined top plate being rotatably connected by pins, synchronous motors being fixedly installed on the inner walls of both sides of the gap above the hydraulic support base, a first drive turntable being fixedly welded to the power output end of one synchronous motor, and a second drive turntable being fixedly welded to the power output end of the other synchronous motor, with a driven turntable positioned between the first and second drive turntables; the first drive turntable, driven turntable, and second drive turntable, driven by the synchronous motors, have a first crushing hydraulic cylinder and a second crushing hydraulic cylinder rotatably mounted on a rotating shaft positioned between them, so that when the motors are started, the first and second crushing hydraulic cylinders can alternately lift upwards and strike the coal seam at a higher position, thereby crushing it.

[0004] In the aforementioned support system, the coal seam is directly jacked upwards and struck perpendicular to the roof. This causes the broken coal chunks to scatter in all directions due to gravity and impact. These scattered coal chunks accumulate around the bottom of the hydraulic support, potentially jamming the contact surface between the base and the roadway floor. This increases resistance during adjustment or movement of the support, affecting its usability. To address these issues, a hydraulic support device for coal mining roadways is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a hydraulic support device for coal mining roadways to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hydraulic support device for coal mining roadways includes a base, a top beam, and four sets of main hydraulic telescopic rods rotatably connected between the base and the top beam.

[0008] A protective mechanism is provided on one side of the top beam and the base;

[0009] The front beam is rotationally connected to the top beam bottom through a front beam connecting column, and the guard plate is rotationally connected to the front beam bottom through a guard plate connecting column.

[0010] The top beam, the front beam and the guard plate top are connected with protection members.

[0011] In an alternative, the shelter mechanism comprises a shelter beam rotationally connected to the top beam bottom, and the shelter beam bottom is rotationally connected to a connecting rod member near one side of the base.

[0012] In an alternative, the connecting rod member comprises two groups of connecting rods.

[0013] In an alternative, the first adjusting member comprises a secondary hydraulic telescopic rod B rotationally connected to the top beam bottom, and the secondary hydraulic telescopic rod B is rotationally connected to the front beam bottom away from the top beam.

[0014] In an alternative, the second adjusting member comprises a secondary hydraulic telescopic rod A rotationally connected to the front beam bottom, and the secondary hydraulic telescopic rod A is rotationally connected to the guard plate bottom away from the front beam.

[0015] In an alternative, the protection member comprises a strip-shaped seat and a floating strip slidingly connected in the strip-shaped seat, the strip-shaped seat is provided with a floating groove for slidingly receiving the floating strip, the floating strip bottom is connected with a plurality of springs, and the spring bottom end is connected with the floating groove bottom.

[0016] In an alternative, the floating strip top is provided with a plurality of tooth grooves.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] In the utility model, the first adjusting member and the second adjusting member are independently controlled, the front beam and the guard plate angle are adjusted according to the support requirement under different geological conditions of the roadway, the front beam connecting column and the guard plate connecting column are arranged, the coal blocks and the like pass through the seam gap of the top beam and the front beam, the seam gap of the front beam and the guard plate, and the like are reduced, the broken stones directly impact the operation space, and the safety of the support device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model.

[0020] Figure 2 It is the structure schematic view of the bottom of the utility model.

[0021] Figure 3 It is the structure schematic view of the protective side plate in the utility model.

[0022] Figure 4 It is the structure schematic view of the protection piece in the utility model.

[0023] In the drawing: 1, base; 2, main hydraulic telescopic rod; 3, roof beam; 4, shelter beam; 5, connecting rod; 6, front beam; 61, front beam connecting column; 7, protective side plate; 71, protective side plate connecting column; 8, auxiliary hydraulic telescopic rod A; 9, auxiliary hydraulic telescopic rod B; 10, protection piece; 101, strip seat; 102, floating strip; 103, spring; 104, floating groove. DETAILED DESCRIPTION

[0024] In the utility model, unless another explicit provision and limitation, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be broad sense understanding, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless another explicit limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in the embodiments of the utility model in combination with the drawings, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0026] Please refer to Figures 1-4 In the embodiment, a coal mining roadway hydraulic support device includes base 1, roof beam 3 and four groups of main hydraulic telescopic rod 2 rotatably connected between base 1 and roof beam 3; four groups of main hydraulic telescopic rod 2 ensure that roof beam 3 is uniformly stressed, improve the stability of the support structure, can bear the vertical pressure and lateral force of the roadway roof;

[0027] The roof beam 3 and the base 1 side are provided with a shelter mechanism;

[0028] The front beam 6 is rotationally connected to the bottom of the top beam 3 through a front beam connecting column 61, and the roof support plate 7 is rotationally connected to the bottom of the front beam 6 through a roof support plate connecting column 71.

[0029] The top beam 3, the front beam 6 and the roof support plate 7 are connected with the protection member 10 on both sides of the top thereof, and the length of the protection member 10 on the top beam 3, the front beam 6 and the roof support plate 7 is set according to actual requirements.

[0030] According to the above scheme, the angle of the front beam 6 and the roof support plate 7 can be adjusted according to the support requirements of the roadway under different geological conditions through independent control of the first adjusting member and the second adjusting member, and the front beam connecting column 61 and the roof support plate connecting column 71 are arranged to reduce the entry of coal blocks and the like through the gaps of the top beam 3 and the front beam 6 and the gaps of the front beam 6 and the roof support plate 7, reduce the direct impact of the rubble on the working space, and improve the safety of the support device.

[0031] Please refer to Figure 1 The shield mechanism includes a shield beam 4 rotationally connected to the bottom of the top beam 3, the bottom of the shield beam 4 is rotationally connected to the connecting rod member 5 near one side of the base 1, and the connecting rod member 5 is rotationally connected to the base 1 away from the shield beam 4. Further, the connecting rod member 5 includes two groups of connecting rods; specifically, the shield beam 4 cooperates with the connecting rod member 5 to effectively block the falling rubble, and when the height of the top beam 3 is adjusted, the shield beam 4 changes the angle under the support of the connecting rod member 5, and can withstand the vertical pressure and lateral force of the roadway.

[0032] Please refer to Figure 2 The first adjusting member includes a secondary hydraulic telescopic rod B9 rotationally connected to the bottom of the top beam 3, the secondary hydraulic telescopic rod B9 is rotationally connected to the bottom of the front beam 6 away from the top beam 3, and the secondary hydraulic telescopic rod B9 is provided with two groups, and the two groups of secondary hydraulic telescopic rods B9 are arranged in parallel; specifically, the angle of the front beam 6 is adjusted through the secondary hydraulic telescopic rod B9, the angle of the front beam 6 is adjusted according to the angle of the front side of the top beam 3, the secondary hydraulic telescopic rod B9 extends and retracts to push the front beam 6 to incline upward or downward, and the front support capacity is enhanced.

[0033] Please refer to Figure 2The second adjusting part comprises a sub-hydraulic telescopic rod A8 rotatably connected to the bottom of the front beam 6, and the sub-hydraulic telescopic rod A8 is rotatably connected to the bottom of the side support plate 7 at a position away from the front beam 6, and the sub-hydraulic telescopic rod A8 is provided with two groups, and the two groups of the sub-hydraulic telescopic rod A8 are arranged in parallel, and specifically, the side support plate 7 adjusts the angle through the sub-hydraulic telescopic rod A8, when the side of the roadway appears a risk of falling, the sub-hydraulic telescopic rod A8 pushes the side support plate 7 to stretch forward, and is close to the side wall of the rock wall, so as to prevent the rock from falling, and protect the safety of the workers and equipment.

[0034] Please refer to Figure 4 The protecting part 10 comprises a strip-shaped seat 101 and a floating strip 102 slidably connected in the strip-shaped seat 101, the strip-shaped seat 101 is provided with a floating groove 104 for slidably accommodating the floating strip 102, the bottom of the floating strip 102 is connected with a plurality of springs 103, and the bottom end of the spring 103 is connected with the bottom of the floating groove 104; specifically, when contacting the working face, the working face of the coal mining roadway is uneven, and part of the coal cinder falls on the roof beam 3 or the front beam 6 or the side support plate 7, the protecting part 10 can reduce the rolling of the coal block to the two sides of the device, when contacting the working face, the floating strip 102 can slide in the floating groove 104, the spring 103 is compressed and buffered, the rigid extrusion is reduced, and the adhesion and support to the working face are maintained.

[0035] Please refer to Figure 4 The top of the floating strip 102 is provided with a plurality of tooth grooves, and the roadway working face is more effectively adhered.

[0036] The working principle of the utility model is: the extension and retraction actions of the main hydraulic telescopic rod 2, the sub-hydraulic telescopic rod B9 and the sub-hydraulic telescopic rod A8 can be realized by inputting or outputting corresponding hydraulic oil, when the roof beam 3 contacts the roadway roof, the main hydraulic telescopic rod 2 maintains the hydraulic pressure, forms stable support, and the shield beam 4 supports the rear side; the angles of the front beam 6 and the side support plate 7 can be adjusted according to the support requirements under different geological conditions of the roadway.

[0037] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in other forms, and any skilled person in the art can modify or change the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belongs to the protection scope of the technical scheme of the utility model.

Claims

1. A hydraulic support device for a coal mining roadway, comprising a base (1), a top beam (3), and four sets of main hydraulic telescopic rods (2) rotatably connected between the base (1) and the top beam (3); Its features are: The top beam (3) and the base (1) are provided with a shielding mechanism on one side; The top beam (3) is provided with a front beam (6) and a side plate (7) at the end away from the cover mechanism. The front beam (6) is rotatably connected to the bottom of the top beam (3) through a front beam connecting column (61). The side plate (7) is rotatably connected to the bottom of the front beam (6) through a side plate connecting column (71). The bottom of the top beam (3) is connected to a first adjusting member for adjusting the rotation of the front beam (6). The bottom of the front beam (6) is connected to a second adjusting member for adjusting the rotation of the side plate (7). Protective components (10) are connected to both sides of the top of the top beam (3), front beam (6) and side guard plate (7).

2. The hydraulic support device for coal mining roadways according to claim 1, characterized in that: The cover mechanism includes a cover beam (4) rotatably connected to the bottom of the top beam (3), a connecting rod (5) rotatably connected to the bottom of the cover beam (4) near the base (1), and the end of the connecting rod (5) away from the cover beam (4) rotatably connected to the base (1).

3. The hydraulic support device for coal mining roadways according to claim 2, characterized in that: The connecting rod (5) includes two sets of connecting rods.

4. The hydraulic support device for coal mining roadways according to claim 1, characterized in that: The first adjusting component includes a secondary hydraulic telescopic rod B (9) rotatably connected to the bottom of the top beam (3). The end of the secondary hydraulic telescopic rod B (9) away from the top beam (3) is rotatably connected to the bottom of the front beam (6). There are two sets of the secondary hydraulic telescopic rod B (9), and the two sets of the secondary hydraulic telescopic rod B (9) are arranged in parallel.

5. A hydraulic support device for coal mining roadways according to claim 1, characterized in that: The second adjusting component includes a secondary hydraulic telescopic rod A (8) rotatably connected to the bottom of the front beam (6). The end of the secondary hydraulic telescopic rod A (8) away from the front beam (6) is rotatably connected to the bottom of the side guard plate (7). There are two sets of the secondary hydraulic telescopic rod A (8), and the two sets of the secondary hydraulic telescopic rod A (8) are arranged in parallel.

6. The hydraulic support device for coal mining roadways according to claim 1, characterized in that: The protective component (10) includes a strip base (101) and a floating strip (102) slidably connected in the strip base (101). The strip base (101) is provided with a floating groove (104) for slidingly receiving the floating strip (102). Several springs (103) are connected to the bottom of the floating strip (102), and the bottom end of the springs (103) is connected to the bottom of the floating groove (104).

7. A hydraulic support device for coal mining roadways according to claim 6, characterized in that: The top of the floating bar (102) is provided with multiple toothed grooves.

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