Supporting structure of coal mine tunnel

Abstract

The utility model discloses a coal mine tunnel supporting structure which comprises a supporting shell installed at the end of a supporting column, arc holes which are symmetrically arranged are formed in the two side walls of the supporting shell, a supporting arc plate is arranged in the supporting shell, and a fixedly-installed shaft rod and a movably-installed adjusting rod are arranged on the supporting arc plate. Limiting holes are formed in the supporting shell at equal intervals, and the adjusting rod is assembled with any limiting hole, so that the shaft rod slides in the arc hole, and the inclination angle of the supporting arc plate is adjustable. According to the supporting structure of the coal mine roadway, the extending length of the supporting arc plate is influenced by the position of the shaft rod in the arc hole, and the inclination angle is influenced by the position of the shaft rod and the position of the adjusting rod together, so that the supporting arc plate has more adjusting positions, namely, the degree of adapting to the cambered surface of the roadway is higher; the supporting arc plate is used for achieving a better supporting and connecting effect, the supporting arc plate integrated on the supporting column has a portable function, and stable supporting can be achieved while the high-adaptability effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine roadway construction equipment technical field, concretely related to a coal mine roadway's supporting structure. BACKGROUND

[0002] Roadway is the important passageway in coal mine construction, is used to the transportation, ventilation and drainage etc. of mining, and needs to use the supporting structure in the roadway to provide support, and the supporting structure mainly uses the anchor rod and the supporting plate to assemble, the purpose is to guarantee the safety inside the roadway.

[0003] According to the public (announcement) number: CN111119964A, the public (announcement) day: May 8, 2020, a kind of anchor rod anchor beam supporting structure for coal mine roadway, including upper support beam and lower support beam and the anchor rod between them, and make anchor rod cooperate with use upper top seat and lower top seat.

[0004] In the prior art including the above patent, because there are a large number of roadway walls with curvature in the roadway, especially in the position between adjacent roadway walls, so the anchor rod needs to be arranged in the arc surface using multiple supporting beams or assembled in the arc surface using multiple horizontal plate pieces before being arranged equidistantly longitudinally in the whole arc surface section, both ways need to use a large number of supporting components, the use and maintenance cost is higher, at the same time, it also makes the internal environment of the roadway more compact, the comfort degree is greatly reduced, and for some arc surface sections with different depths, the difficulty of supporting use is also increased. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of supporting structure for coal mine roadway, to solve the problems generated above.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] A kind of supporting structure for coal mine roadway, including support post, further including the support shell installed in the end of support post, the arc hole of symmetrical arrangement is opened in the two side walls of support shell, and the support arc plate is arranged in support shell;

[0008] The shaft rod of fixed installation and the adjusting rod of movable installation are arranged on the support arc plate;

[0009] Limiting hole is also opened on the support shell Equidistantly arranged, and adjusting rod is assembled with any limiting hole, so that shaft rod slides in arc hole, and the inclination angle of support arc plate is adjustable.

[0010] Preferably, a hole is opened on the support arc plate for the sliding of square adjusting rod.

[0011] Preferably, a positioning hole is also opened on the support shell for receiving adjusting rod.

[0012] Preferably, the support shell port is fixedly installed with shell edges arranged symmetrically.

[0013] Preferably, the support arc plate is provided with equidistantly arranged notches, and the notches are provided with arc pressing plates.

[0014] Preferably, the arc pressing plate end is fixedly installed with a rotating shaft rotating in the notch.

[0015] Preferably, the rotating shaft is fixedly installed with a spring matched with the notch.

[0016] Preferably, the notch is provided with a polygonal lock hole, and the rotating shaft is fixedly installed with a lock block matched with the lock hole.

[0017] Preferably, the support shell is a steel shell.

[0018] Preferably, the arc pressing plate is a steel plate.

[0019] In the above technical solution, the supporting structure of the coal mine tunnel provided by the utility model has the following beneficial effects: the extension length of the support arc plate is affected by the position of the shaft in the arc hole, and the inclination angle is affected by the positions of the shaft and the adjusting rod, so that the support arc plate has more adjustment positions, that is, the degree of adaptation to the tunnel arc surface is higher, which is used to make the support arc plate have better supporting and connecting effects, the support arc plate integrated on the support column has a portable function, can realize high adaptation effect and stable support, the use cost is reduced, and interference caused by the internal environment of the tunnel is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 The anchor rod and the supporting component assembly schematic diagram provided by the utility model embodiment;

[0022] Figure 2 The support shell and the support arc plate explosion schematic diagram provided by the utility model embodiment;

[0023] Figure 3 The support arc plate and the plurality of arc pressing plates explosion schematic diagram provided by the utility model embodiment;

[0024] Figure 4 The support shell and the support arc plate, the plurality of arc pressing plates front cross-sectional view schematic diagram provided by the utility model embodiment.

[0025] Reference signs:

[0026] 1, pillar; 2, support shell; 21, shell edge; 22, arc hole; 23, positioning hole; 24, limiting hole; 3, support arc plate; 31, shaft; 32, adjusting rod; 33, notch; 34, lock hole; 4, arc pressing plate; 41, rotating shaft; 42, lock block. DETAILED DESCRIPTION

[0027] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0028] As Figures 1-4 shown, a supporting structure of a coal mine tunnel, comprising a pillar 1, further comprising a support shell 2 mounted on the end of the pillar 1, the two side walls of the support shell 2 are provided with arc holes 22 arranged symmetrically, and the support shell 2 is provided with a support arc plate 3.

[0029] The support arc plate 3 is provided with a fixedly installed shaft 31 and an adjustably installed adjusting rod 32.

[0030] The support shell 2 is further provided with equidistantly arranged limiting holes 24, and the adjusting rod 32 is assembled with any limiting hole 24, so that the shaft 31 slides in the arc hole 22, and the inclination angle of the support arc plate 3 is adjustable.

[0031] Specifically, the pillar 1 is a rod body in the prior art, which is not described here, the support shell 2 is open upward and has a U shape, and the support arc plate 3 in the default state is vertically stored inside the support shell 2.

[0032] By pulling out the support arc plate 3 from the support shell 2 and exposing the upper end of the support arc plate 3, the arc-shaped protrusion of the support arc plate 3 can adapt to the tunnel arc surface section, and then the adjusting rod 32 is buckled in the specified limiting hole 24 for locking, and the shaft 31 is fixed at a predetermined position in the arc hole 22, and the length of the support arc plate 3 is affected by the position of the shaft 31 in the arc hole 22, and the inclination angle is affected by the positions of the shaft 31 and the adjusting rod 32, so that the support arc plate 3 has more adjustment positions, that is, the degree of adaptation to the tunnel arc surface is higher, which is used to make the support arc plate 3 have better support and connection effect, the support arc plate 3 integrated on the pillar 1 has a portable function, realizes high adaptation effect, and also stabilizes the support, reduces the use cost, and avoids interference caused by the internal environment of the tunnel.

[0033] As a further embodiment of the utility model, a hole is formed in the support arc plate 3 for sliding the square adjusting rod 32.

[0034] Specifically, the two ends of the adjusting rod 32 slide on the two side walls of the support shell 2, and a tension spring is fixedly installed between the adjusting rod 32 and the hole in the support arc plate 3.

[0035] By adjusting the square side wall of the rod 32 to slide against the inner wall of the limiting hole 24, and when the supporting arc plate 3 is forced downward, the side wall of the adjusting rod 32 and the inner wall of the limiting hole 24 are fixed, so that the supporting arc plate 3 can be fixed at the current inclination angle, and the shaft rod 31 is fixed on the inner wall of the arc hole 22.

[0036] As further provided in another embodiment of the utility model, the supporting shell 2 is further provided with a positioning hole 23 for accommodating the adjusting rod 32.

[0037] Specifically, the positioning hole 23 is located below all the limiting holes 24, and the depth of the positioning hole 23 is greater than the depth of the limiting hole 24.

[0038] By default, the adjusting rod 32 is fixed to the inner wall of the positioning hole 23 (away from the opening), which facilitates the use of the tension spring to provide position limitation for the supporting arc plate 3 in the default state (the adjusting rod 32 needs to overcome the tension of the tension spring when moving), thereby ensuring the stability of the support part when the support column 1 is taken.

[0039] As further provided in another embodiment of the utility model, the supporting shell 2 is fixedly provided with symmetrically arranged shell edges 21 at the port.

[0040] Specifically, the shell edge 21 is perpendicular to the upper port of the supporting shell 2, and a plurality of holes are formed in the shell edge 21.

[0041] The holes in the two shell edges 21 can provide bolt and nut connection for connecting rods, and in special cases, the holes can be used for welding of steel bars, and form an inverted triangular assembly connection mode for increasing the supporting effect of the supporting shell 2.

[0042] As further provided in another embodiment of the utility model, the supporting arc plate 3 is provided with equidistantly arranged notches 33, and the notches 33 are provided with arc pressure plates 4.

[0043] The arc-shaped arc pressure plate 4 extends from the raised end surface of the supporting arc plate 3, which is used to adapt the concave part in the arc surface section of the roadway, so that the raised arc surface of the arc pressure plate 4 is embedded and connected, thereby increasing the supporting effect of the supporting arc plate 3.

[0044] As further provided in another embodiment of the utility model, the arc pressure plate 4 is fixedly provided with a rotating shaft 41 rotating in the notch 33.

[0045] The rotating shaft 41 is used to make the arc pressure plate 4 rotate at a larger angle, and also make the concave opening of the arc pressure plate 4 upward, i.e. the arc pressure plate 4 is inverted and buckled on the raised end surface of the supporting arc plate 3, at this time, the arc pressure plate 4 plays a role of inverted barb insertion, which can be used in muddy arc surface sections.

[0046] As further provided by the utility model, the pivot 41 is fixedly installed with a spring matched with the notch 33.

[0047] The spring is compressed by pressing the pivot 41, so as to provide locking and unlocking limiting force for the arc pressing plate 4.

[0048] As further provided by the utility model, the notch 33 is provided with a polygonal lock hole 34, and the pivot 41 is fixedly installed with a lock block 42 matched with the lock hole 34.

[0049] Specifically, the lock block 42 and the pivot 41 are fixedly installed with a columnar block, and the diameter of the columnar block is smaller than the distance between the two opposite end faces of the lock block 42, so as to adapt the columnar block to enter the lock hole 34 without interference.

[0050] The lock block 42 is pressed into the notch 33, and the other end of the pivot 41 is inserted into the spring accommodating hole of the notch 33, then the arc pressing plate 4 is pried to adjust the turning angle, and finally the lock block 42 is released to reset the spring to lock, so as to ensure the stability of the arc pressing plate 4 after the angle is adjusted.

[0051] As further provided by the utility model, the support shell 2 is specifically a steel shell.

[0052] The support shell 2 made of steel material can make the stability and safety higher during the supporting process.

[0053] As further provided by the utility model, the arc pressing plate 4 is specifically a steel plate.

[0054] Specifically, the arc pressing plate 4 is coated with corrosion-resistant and high-temperature-resistant paint, and the paint is prior art, which will not be described here.

[0055] The arc pressing plate 4 made of steel material can make the connection stable after embedding and inserting, and is not easy to be deformed and damaged by extrusion.

[0056] Working principle: the support arc plate 3 is pulled out of the support shell 2 and exposed at the upper end of the support arc plate 3, so that the arc-shaped protrusion of the support arc plate 3 can adapt to the roadway arc surface section, then the adjusting rod 32 is buckled in the specified limiting hole 24 to lock, and the shaft rod 31 is fixed at the predetermined position in the arc hole 22, and the extension length of the support arc plate 3 is affected by the position of the shaft rod 31 in the arc hole 22, and the inclination angle is affected by the positions of the shaft rod 31 and the adjusting rod 32, so that the support arc plate 3 has more adjustment positions, that is, the adaptability to the roadway arc surface is higher, so as to make the support arc plate 3 have better supporting and connecting effect.

[0057] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A support structure for a coal mine roadway comprising a prop (1), characterised in that, It also includes a support shell (2) installed at the end of the support column (1), the support shell (2) is provided with arc holes (22) arranged symmetrically on both sides of the wall, and a support arc plate (3) is arranged in the support shell (2); The support arc plate (3) is provided with a fixedly installed shaft (31) and a movably installed adjusting rod (32); The support shell (2) is also provided with equidistantly arranged limiting holes (24), and the adjusting rod (32) is assembled with any limiting hole (24), so that the shaft (31) slides in the arc hole (22), and the inclination angle of the support arc plate (3) is adjustable.

2. A support structure for a coal mine roadway according to claim 1 wherein, The support arc plate (3) is provided with a hole for sliding the square adjusting rod (32).

3. A support structure for a coal mine roadway as claimed in claim 1 wherein, The support shell (2) is also provided with a positioning hole (23) for accommodating the adjusting rod (32).

4. A support structure for a coal mine roadway as claimed in claim 1 wherein, The support shell (2) is fixedly installed with symmetrically arranged shell edges (21) at the port.

5. A support structure for a coal mine roadway as claimed in claim 1 wherein, The support arc plate (3) is provided with equidistantly arranged notches (33), and the notches (33) are provided with arc pressing plates (4).

6. A support structure for a coal mine roadway according to claim 5 wherein, The arc pressing plate (4) is fixedly installed with a rotating shaft (41) rotating in the notch (33) at the end.

7. A support structure for a coal mine roadway according to claim 6 wherein, The rotating shaft (41) is fixedly installed with a spring matched with the notch (33).

8. A support structure for a coal mine roadway according to claim 6 wherein, The notch (33) is provided with a polygonal lock hole (34), and the rotating shaft (41) is fixedly installed with a lock block (42) matched with the lock hole (34).

9. A support structure for a coal mine roadway according to claim 6 wherein, The support shell (2) is a steel shell.

10. A support structure for a coal mine roadway as claimed in claim 6 wherein, The arc pressing plate (4) is a steel plate.

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