Temporary supporting system for rapid tunneling of coal roadway

Abstract

The utility model belongs to the technical field of roadway support, and particularly relates to a temporary support system for rapid tunneling of a coal roadway, which comprises a support frame, the support frame comprises a plurality of support structures, the adjacent support structures are detachably connected through connecting rods, pressure sensors are arranged on the support structures, and the pressure sensors are arranged on the support frames. Supporting leg structures are rotationally connected to the bottom ends of the two sides of the supporting structure, and indicator lamps and alarms are arranged on the supporting leg structures. The pressure sensor is electrically connected with the indicator lamp and the alarm, and the supporting structure, the indicator lamp and the alarm are electrically connected with an external control system. By means of the structures, the temporary supporting system for rapid coal roadway tunneling is easy to operate and construct, good supporting can be provided, and timely alarm can be given out according to the pressure condition.

Description

TECHNICAL FIELD

[0001] The utility model belongs to roadway support technical field, especially relates to the temporary support system of coal roadway rapid excavation. BACKGROUND

[0002] In the coal roadway or semi-coal roadway excavation before the coal mining operation, the circulating excavation mode is usually adopted, that is, each excavation is a cycle of a set distance, and after the completion of one cycle excavation, the permanent support is carried out on the roadway. For soft coal seam, since the self-stability of the coal seam is worse, when the single cycle operation is not completed, the soft coal seam on the upper part of the roadway may collapse, which not only exists the safety hidden danger, but also reduces the excavation efficiency. The softer the coal seam is, the more prone to coal seam collapse accident. In order to ensure the safety of excavation and improve the excavation efficiency, temporary support needs to be carried out on the soft coal seam.

[0003] The support structure in the prior art is complex, is not easy to construct, and does not have an alarm function, so that it cannot be determined whether effective support is provided during use. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a coal roadway rapid excavation temporary support system, which solves the above problems, is simple to operate, provides good support, and can send timely alarm according to the pressure condition.

[0005] In order to achieve the above object, the utility model provides the following scheme:

[0006] The coal roadway rapid excavation temporary support system comprises a support frame, the support frame comprises a plurality of support structures, adjacent support structures are detachably connected through connecting rods, a pressure sensor is arranged on the support structure, support leg structures are rotatably connected to the bottom ends on both sides of the support structure, and indicator lights and alarms are arranged on the support leg structures.

[0007] The pressure sensor is electrically connected with the indicator lights and the alarms, and the support structure, the indicator lights, the alarms and an external control system are electrically connected.

[0008] Preferably, the support structure comprises two symmetrically arranged triangular support seats, the triangular support seats are rotatably connected with the support leg structures at the bottom ends, connecting screw grooves are arranged on both sides of the triangular support seats, and the ends of the connecting rods are screw-connected with the corresponding connecting screw grooves.

[0009] A connecting rod is rotatably connected between the two triangular support seats, a driving part is arranged on the connecting rod, and a top plate structure is rotatably connected to one end of the triangular support seat away from the connecting rod.

[0010] Preferably, the driving part comprises a telescopic cylinder, one end of the telescopic cylinder is rotationally connected with the triangular support base, an output shaft of the telescopic cylinder is connected with one end of the connecting rod, and the pressure sensor is arranged in the telescopic cylinder.

[0011] The telescopic cylinder is electrically connected with an external control system.

[0012] Preferably, the top plate structure comprises a rotating plate, one side of the rotating plate is rotationally connected with the triangular support base away from one end of the connecting rod, the other side of the rotating plate is slidably connected with a sliding plate, one side of the sliding plate is provided with a sliding rail, and the inner side of the rotating plate is provided with a sliding plate sliding groove, and the sliding plate sliding groove is slidably connected with the sliding rail.

[0013] Preferably, the supporting leg structure comprises a supporting leg, the inner side of the supporting leg is slidably connected with an adjusting rod, the top end of the adjusting rod is rotationally connected with the bottom end of the triangular support base, and a fixing nut is threadedly connected on the adjusting rod.

[0014] Preferably, the bottom end of the supporting leg is rotationally connected with a supporting bottom plate.

[0015] Preferably, a plurality of sliding grooves are equidistantly formed on the outer side of the adjusting rod in the axial direction, the inner side of the supporting leg is provided with a butt joint sliding rail, the sliding grooves are slidably connected with the corresponding butt joint sliding rails, the outer side of the adjusting rod is provided with an external thread, and the external thread is threadedly connected with the fixing nut.

[0016] Compared with the prior art, the utility model has the advantages and technical effects that:

[0017] By arranging a plurality of supporting structures, different positions of the coal roadway can be temporarily supported, adjacent supporting structures are connected through connecting rods, not only the appropriate length can be installed according to the needs, but also a more stable supporting frame is provided, a temporary supporting system is formed through the supporting structures, and a good supporting effect is formed. By arranging the pressure sensor, the system can detect the pressure borne by the supporting structure, and through the cooperation of the pressure sensor, the indicator light and the alarm, an effect of timely alarm can be realized. By arranging the supporting leg structure, the supporting structure above can be supported.

[0018] By utilizing these structures, a coal roadway rapid tunneling temporary supporting system is realized, which is simple to operate and easy to construct, can provide good support, and can issue timely alarms according to pressure conditions. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] Figure 1 It is a structural schematic view of the present system in use;

[0021] Figure 2 It is a supporting structure and a supporting leg structure after being stored;

[0022] Figure 3 It is a structural schematic view of the adjusting rod;

[0023] Figure 4 It is a structural schematic view of the supporting structure and the supporting leg structure during carrying.

[0024] The drawings show that: 1, supporting structure; 2, supporting leg structure; 3, connecting rod; 4, indicator light; 5, alarm; 101, triangular support seat; 102, connecting rod; 103, telescopic cylinder; 104, top plate structure; 105, connecting screw groove; 1041, rotating plate; 1042, sliding plate; 1043, sliding rail; 201, supporting leg; 202, supporting bottom plate; 203, adjusting rod; 204, fixed nut; 2031, external thread; 2032, sliding groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0027] Referring to Figures 1 to 4 The present application provides a kind of temporary support system of coal roadway rapid excavation, it include: supporting frame, supporting frame includes several supporting structures 1, adjacent supporting structure 1 is detachably connected by connecting rod 3, supporting structure 1 is equipped with pressure sensor meter, supporting structure 1 both sides bottom end is rotatably connected with supporting leg structure 2, supporting leg structure 2 is equipped with indicator light 4, alarm 5;

[0028] The pressure sensor meter is electrically connected with the indicator light 4 and the alarm 5, and the support structure 1, the indicator light 4 and the alarm 5 are electrically connected with an external control system.

[0029] By arranging a plurality of support structures 1, the coal roadway at different positions can be temporarily supported, and adjacent support structures 1 are connected through the connecting rods 3, which not only facilitates the installation of appropriate length according to needs, but also provides a more stable support frame. A temporary support system is formed by the support structures 1, and a good support effect is formed.

[0030] By arranging the pressure sensor meter, the system can detect the pressure borne by the support structure 1. Specifically,

[0031] When the support pressure of the upper rock wall is insufficient, the indicator light 4 gives an indication, so that the staff can maintain and readjust the support. When the support pressure reaches a certain threshold, the indicator light 4 is always on, and the staff can determine that the support condition is good. When the pressure changes significantly, the alarm 5 is notified to give an alarm, and the indicator light 4 gives a warning, and the staff should evacuate as soon as possible.

[0032] Through the cooperation of the pressure sensor meter, the indicator light 4 and the alarm 5, an effect of giving timely alarm can be achieved.

[0033] By arranging the support leg structure 2, support can be provided for the support structure 1 above.

[0034] By using these structures, a coal roadway rapid tunneling temporary support system capable of providing good support and giving timely alarm according to the pressure condition is realized.

[0035] Further optimization scheme, the support structure 1 includes two symmetrically arranged triangular support seats 101, the bottom end of the triangular support seat 101 is rotatably connected with the support leg structure 2, the two sides of the triangular support seat 101 are provided with connecting screw grooves 105, and the end of the connecting rod 3 is threadedly connected with the corresponding connecting screw groove 105.

[0036] A connecting rod 102 is rotatably connected between the two triangular support seats 101, the connecting rod 102 is provided with a driving part, and the end of the triangular support seat 101 away from the connecting rod 102 is rotatably connected with a top plate structure 104.

[0037] By arranging the triangular support seat 101 in cooperation with the connecting rod 3, the connection between the plurality of support structures 1 is realized, and by arranging the connecting screw groove 105, the convenient and stable disassembly and assembly are realized.

[0038] Further optimization scheme, the driving part includes a telescopic cylinder 103, one end of the telescopic cylinder 103 is rotatably connected with the triangular support seat 101, the output shaft of the telescopic cylinder 103 is shaft-connected with one end of the connecting rod 102, and the pressure sensor meter is arranged in the telescopic cylinder 103.

[0039] The telescopic air cylinder 103 is electrically connected with an external control system.

[0040] When the support structure 1 in the system is placed, the telescopic air cylinder 103 is driven to move, so as to push the two triangular support seats 101 to move outward and provide support for the rock wall.

[0041] Further optimization scheme, the roof structure 104 includes a rotating plate 1041, one side of the rotating plate 1041 is rotatably connected with one end of the triangular support seat 101 away from the connecting rod 102, the other side of the rotating plate 1041 is slidably connected with a sliding plate 1042, one side of the sliding plate 1042 is provided with a sliding rail 1043, the inner side of the rotating plate 1041 is provided with a sliding plate sliding groove, and the sliding plate sliding groove is slidably connected with the sliding rail 1043.

[0042] When starting to support, the rotating plate 1041 is rotated to be parallel to the rock wall, and the sliding plate 1042 is pushed to move upward until it is stopped about 1 / 2 out of the rotating plate 1041, so as to ensure that the triangular support seat 101 is uniformly stressed. Figure 2 When it is necessary to store and transport, referring to FIG. 6, the sliding plate 1042 can be pushed downward to be stored.

[0043] Further optimization scheme, the support leg structure 2 includes a support leg 201, the inner side of the support leg 201 is slidably connected with an adjusting rod 203, the top end of the adjusting rod 203 is rotatably connected with the bottom end of the triangular support seat 101, and a fixing nut 204 is threadedly connected on the adjusting rod 203.

[0044] By arranging the adjusting rod 203, the length of the entire support leg structure 2 can be adjusted, and by arranging the fixing nut 204, when the length is adjusted to be appropriate, the fixing nut 204 can be locked to fix the entire support leg structure 2.

[0045] Further optimization scheme, the bottom end of the support leg 201 is rotatably connected with a support bottom plate 202.

[0046] By arranging the support bottom plate 202, more stable support can be achieved, and sliding of the support leg structure 2 can be avoided.

[0047] Further optimization scheme, a plurality of sliding grooves 2032 are arranged on the outer side of the adjusting rod 203 at equal intervals in the axial direction, the inner side of the support leg 201 is provided with a butt joint sliding rail, the sliding grooves 2032 are slidably connected with the corresponding butt joint sliding rail, the outer side of the adjusting rod 203 is provided with an external thread 2031, and the external thread 2031 is threadedly connected with the fixing nut 204.

[0048] The sliding groove 2032 cuts the external thread 2031, but does not affect the threaded connection between the external thread 2031 and the fixing nut 204, and the lower supporting leg 201 is in sliding connection with the adjusting rod 203 through the butt joint sliding rail, so that stable sliding can be realized, and the fixing nut 204 can be used to fix the whole supporting leg structure 2.

[0049] Referring to Figure 4 The device is simple and easy to use, can be folded, and can be conveniently carried by a trolley.

[0050] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. The above-described embodiments are only descriptions of preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application should fall within the protection scope of the present application.

Claims

1. A temporary support system for rapid excavation of a coal roadway, characterised in that, Include: Support frame, the support frame includes several support structures (1), adjacent support structures (1) are detachably connected through connecting rods (3), a pressure sensor is arranged on the support structure (1), and support leg structures (2) are rotatably connected to the bottom of the two sides of the support structure (1), the support leg structure (2) is provided with an indicator light (4), an alarm (5); The pressure sensor is electrically connected with the indicator light (4) and the alarm (5), and the support structure (1), the indicator light (4) and the alarm (5) are electrically connected with an external control system.

2. The coal roadway rapid excavation temporary support system of claim 1, wherein, The support structure (1) includes two symmetrically arranged triangular support seats (101), the triangular support seat (101) is rotatably connected with the support leg structure (2) at the bottom, and connecting screw grooves (105) are arranged on the two sides of the triangular support seat (101); the end of the connecting rod (3) is screw-connected with the corresponding connecting screw groove (105). A connecting rod (102) is rotatably connected between the two triangular support seats (101), a driving part is arranged on the connecting rod (102), and a top plate structure (104) is rotatably connected to the end of the triangular support seat (101) away from the connecting rod (102).

3. The coal roadway rapid excavation temporary support system of claim 2, wherein, The driving part includes a telescopic air cylinder (103), one end of the telescopic air cylinder (103) is rotatably connected with the triangular support seat (101), the output shaft of the telescopic air cylinder (103) is shaft-connected with one end of the connecting rod (102), and the pressure sensor is arranged in the telescopic air cylinder (103); The telescopic air cylinder (103) is electrically connected with an external control system.

4. The coal roadway rapid excavation temporary support system of claim 2, wherein, The top plate structure (104) includes a rotating plate (1041), one side of the rotating plate (1041) is rotatably connected with the end of the triangular support seat (101) away from the connecting rod (102), the other side of the rotating plate (1041) is slidably connected with a sliding plate (1042), one side of the sliding plate (1042) is provided with a sliding rail (1043), the inner side of the rotating plate (1041) is provided with a sliding plate sliding groove, and the sliding plate sliding groove is slidably connected with the sliding rail (1043).

5. The coal roadway rapid excavation temporary support system of claim 2, wherein, The support leg structure (2) includes a support leg (201), a adjusting rod (203) is slidably connected to the inner side of the support leg (201), the top end of the adjusting rod (203) is rotatably connected with the bottom of the triangular support seat (101), and a fixing nut (204) is screw-connected on the adjusting rod (203).

6. The coal roadway rapid excavation temporary support system of claim 5, wherein, The bottom of the support leg (201) is rotatably connected with a supporting bottom plate (202).

7. The coal roadway rapid excavation temporary support system of claim 5, wherein, A plurality of sliding grooves (2032) are equidistantly formed on the outer side of the adjusting rod (203) in the axial direction, the inner side of the support leg (201) is provided with a butt joint sliding rail, the sliding groove (2032) is slidably connected with the corresponding butt joint sliding rail, the outer side of the adjusting rod (203) is provided with an external thread (2031), and the external thread (2031) is screw-connected with the fixing nut (204).

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