Mining yielding steel beam

Abstract

The utility model belongs to the technical field of roadway steel beams, and particularly relates to a mining yielding steel beam which comprises two trapezoidal beams, a plurality of reinforcing beams are assembled on the inner sides of the trapezoidal beams, a same mounting plate is assembled between the reinforcing beams, a plurality of mounting holes are formed in the side wall of the mounting plate, and cylinders are arranged in the mounting holes. A mounting assembly is arranged in an inner cavity of the cylinder, and a plurality of cross beams are assembled between the two trapezoidal beams; the installation assembly comprises a plurality of conical blocks arranged in an inner cavity of a cylinder, connecting rods are fixedly connected between the conical blocks, the end faces, close to one side of the center of the cross beam, of the conical blocks are rotationally connected with threaded rods, the end faces of the cylinder are fixedly connected with threaded sleeves, and the threaded rods penetrate through the threaded sleeves and are in threaded connection with the threaded sleeves. According to the utility model, the fixing piece for mounting the steel beam can be conveniently disassembled, so that the steel beam can be recycled, and the mining cost input is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of roadway steel beams, and specifically relates to a yield steel beam for mining. Background Art

[0002] Mine roadway steel beams generally refer to steel beams used to support roadways or tunnels in mines. These steel beams need to have sufficient strength and corrosion resistance to cope with various challenges in the mining environment, such as geological conditions, humid environments, and chemicals; since roadways are generally located deep underground and have complex geological structures, some roadway tops may crack, sink, collapse, and other problems, and support reinforcement is usually carried out according to geological conditions.

[0003] The existing steel beam reinforcement structure used in the tunnel is generally directly erected with triangular steel beams or right-angle steel beams. Although it can play a supporting role, its overall structural strength is reduced due to long-term pressure and corrosion. In addition, the current forms of installing steel beams are mainly anchor bolts, welding, embedded parts, etc., which are basically used as disposable products. When a fixing is loose or damaged, it is necessary to drill a hole in the wall to install a new fixing. If the tunnel is in an abandoned state, it is not convenient to dismantle the steel beam for recycling, which greatly increases its mining cost. Utility Model Content

[0004] The utility model aims to provide a mine-use yield steel beam, which can conveniently disassemble the fixing parts for installing the steel beam, so that the steel beam can be recycled and the mining cost investment can be reduced.

[0005] The technical solutions adopted in this utility are as follows:

[0006] The yield steel beam for mining comprises two trapezoidal beams, each of which is equipped with a plurality of reinforcing beams on its inner side, a same mounting plate is installed between the reinforcing beams, a plurality of mounting holes are opened on the side wall of the mounting plate, a cylinder is arranged in each of the mounting holes, a mounting assembly is arranged in the inner cavity of the cylinder, and a plurality of cross beams are installed between the two trapezoidal beams;

[0007] The mounting assembly includes a plurality of conical blocks arranged in the inner cavity of the cylinder, the conical blocks are fixedly connected with connecting rods, the end faces of the conical blocks close to the center of the cross beam are rotatably connected with screws, the end faces of the cylinder are fixedly connected with threaded sleeves, the screws penetrate the threaded sleeves and are threadedly connected thereto, the side walls of the conical blocks are slidably connected with a plurality of push rods, the other ends of the push rods penetrate the cylinder and are movably connected thereto, and the other ends of the push rods are fixedly connected with an arc plate.

[0008] The end of the push rod close to the conical block is fixedly connected with a sliding block, and a sliding groove is provided on the side wall of the conical block, and the sliding block is slidably connected with the sliding groove.

[0009] The end face of the screw is provided with a grouting hole, the side wall of the screw is provided with a plurality of grout outlet holes in the inner cavity of the cylinder, the end faces of the conical blocks are provided with through holes, and the side wall of the cylinder is provided with a plurality of filling holes.

[0010] The side wall of the screw rod is located outside the cylinder and is threadedly connected with a nut, and the nut is threadedly connected with the threaded sleeve.

[0011] The side wall of the cylinder is provided with a plurality of grooves, and the arc-shaped plates are all located in the grooves.

[0012] A plurality of protrusions are fixedly connected to the side walls of the arc-shaped plate.

[0013] The technical effects achieved by this utility model are:

[0014] The practical mining pressure steel beam can be conveniently installed on the tunnel through the cooperation between the trapezoidal beam, the cross beam, the mounting plate, the cylinder and the mounting components, so as to support and reinforce the side walls and the top of the tunnel. At the same time, the trapezoidal structure can provide a larger bearing capacity with a smaller cross-sectional size. Moreover, after the tunnel is abandoned, the trapezoidal beam can be easily disassembled, recycled and reused, thereby reducing the mining cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of this practical embodiment;

[0016] Figure 2 It is a three-dimensional diagram of the cylinder of the practical embodiment;

[0017] Figure 3 It is a structural schematic diagram of the installation assembly of this practical embodiment;

[0018] Figure 4 This practical embodiment Figure 3 Enlarged view of point A in .

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Trapezoidal beam; 2. Reinforcement beam; 3. Mounting plate; 4. Cylinder; 5. Crossbeam; 6. Connecting rod; 7. Conical block; 8. Screw; 9. Screw sleeve; 10. Push rod; 11. Arc plate; 12. Slider; 13. Slide; 14. Grouting hole; 15. Grouting hole; 16. Through hole; 17. Filling hole; 18. Nut; 19. Groove; 20. Bump. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0022] Embodiment 1:

[0023] like Figure 1-Figure 4 As shown, the mining pressure steel beam comprises two trapezoidal beams 1, a plurality of reinforcing beams 2 are installed inside the trapezoidal beams 1, a same mounting plate 3 is installed between the reinforcing beams 2, a plurality of mounting holes are opened on the side wall of the mounting plate 3, a cylinder 4 is arranged in each mounting hole, a mounting assembly is arranged in the inner cavity of the cylinder 4, and a plurality of cross beams 5 are installed between the two trapezoidal beams 1;

[0024] Among them, the crossbeam 5 can be used selectively according to the actual support needs, mainly for reinforcing the positions where hidden dangers exist at the top of the tunnel, and the top of the crossbeam 5 can be used in conjunction with steel plates or other plates to prevent soil from falling and losing; and other connection methods such as bolts, rivets, welding, etc. can be used between the crossbeam 5 and the trapezoidal beam 1, and can also be assembled on-site in the tunnel.

[0025] like Figure 2 and Figure 3 As shown, the mounting assembly includes a plurality of conical blocks 7 arranged in the inner cavity of the cylinder 4, and connecting rods 6 are fixedly connected between the conical blocks 7, and the end faces of the conical blocks 7 close to the center of the beam 5 are rotatably connected to screws 8, and the end faces of the cylinder 4 are fixedly connected to threaded sleeves 9, and the screws 8 penetrate the threaded sleeves 9 and are threadedly connected thereto, and the side walls of the conical blocks 7 are slidably connected to a plurality of push rods 10, and the other ends of the push rods 10 penetrate the cylinder 4 and are movably connected thereto, and the other ends of the push rods 10 are fixedly connected to an arc plate 11.

[0026] Specifically, a single conical block 7 is surrounded by four push rods 10 and four arc plates 11, and the connection position between the push rod 10 and the conical block 7 is a flat surface. By providing four arc plates 11, the surface of the cylinder 4 is subjected to uniform force, which effectively increases the fixing effect of the trapezoidal beam 1.

[0027] like Figure 4 As shown, a slider 12 is fixedly connected to one end of the push rod 10 close to the conical block 7 , a slide groove 13 is provided on the side wall of the conical block 7 , and the slider 12 is slidably connected to the slide groove 13 .

[0028] Among them, by using the connection form of the slider 12 and the slide groove 13, when the trapezoidal beam 1 needs to be disassembled, the conical block 7 is driven to move by reversing the screw rod 8, and at the same time, the conical block 7 can use the slide groove 13 to pull the slider 12 to drive the arc plate 11 to move.

[0029] like Figure 2As shown, the side wall of the screw rod 8 is threadedly connected with a nut 18 located outside the cylinder 4, and the nut 18 is threadedly connected with the screw sleeve 9. The nut 18 can be used to fix the screw rod 8, on the one hand to prevent the screw rod 8 from being loosened due to external vibration, causing the arc plate 11 to loosen and affect the overall stability of the ladder beam 1; on the other hand, it can protect the screw rod 8 and prevent the screw rod 8 from rusting and corroding in the humid environment of the tunnel, which will affect its life.

[0030] like Figure 2 and Figure 3 As shown, the side wall of the cylinder 4 is provided with a plurality of grooves 19, and the arc-shaped plates 11 are all located in the grooves 19. The arc-shaped plates 11 are flush with the surface of the cylinder 4 in the initial state, so that they can be inserted into the reserved holes conveniently during installation.

[0031] A plurality of protrusions 20 are fixedly connected to the side walls of the arc-shaped plate 11. The friction between the arc-shaped plate 11 and the reserved hole can be further increased by providing the protrusions 20. The protrusions 20 can be in the form of cones, triangular pyramids, quadrangular pyramids, and other forms.

[0032] Embodiment 2:

[0033] Based on the above embodiment, this embodiment describes another non-detachable use of the installation component:

[0034] like Figure 3 As shown, a grouting hole 14 is opened on the end face of the screw 8, a plurality of grout outlet holes 15 are opened on the side wall of the screw 8 located in the inner cavity of the cylinder 4, a through hole 16 is opened on the end face of the conical block 7, and a plurality of filling holes 17 are opened on the side wall of the cylinder 4.

[0035] Specifically, when the tunnel is used as the main passage, and there is no need to disassemble the trapezoidal beam 1 at a later stage, in order to further increase the stability of the trapezoidal beam 1, after the installation assembly is installed, cement mortar can be injected into the grouting hole 14 through the grouting equipment, and the mortar is filled in the cylinder 4 through the slurry outlet hole 15. At the same time, the cylinder 4 is filled through the through hole 16, and the excess mortar overflows from the filling hole 17 to the gap in the reserved hole. After the mortar solidifies, the cylinder 4 is integrated with the tunnel wall, further increasing its installation stability effect.

[0036] The working principle of the utility model is as follows: first, a reserved hole is opened on the side wall of the tunnel, then the trapezoidal beam 1 is erected in the tunnel, and whether to install the cross beam 5 is selected according to actual needs, then the trapezoidal beam 1 is lifted so that the mounting hole on the mounting plate 3 is aligned with the reserved hole, and then the cylinder 4 is inserted into the mounting hole and the reserved hole, and then the screw rod 8 is rotated to push the conical block 7 to move, and the inclined surface of the conical block 7 is used to push the push rod 10 outward, so that the arc plate 11 expands outward and abuts against the wall of the reserved hole, and then the nut 18 is rotated to make it sleeved on the screw sleeve 9, and the screw rod 8 is fixed, so as to achieve the purpose of convenient installation of the trapezoidal beam 1, and also facilitate subsequent disassembly, thereby increasing the recovery rate of the trapezoidal beam 1 and the cross beam 5.

[0037] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. The yield steel beam for mining is characterized by: It comprises two trapezoidal beams (1), each of which is provided with a plurality of reinforcing beams (2) on its inner side, a common mounting plate (3) being provided between the reinforcing beams (2), a plurality of mounting holes being provided on the side wall of the mounting plate (3), a cylinder (4) being provided in each of the mounting holes, a mounting assembly being provided in the inner cavity of the cylinder (4), and a plurality of cross beams (5) being provided between the two trapezoidal beams (1); The mounting assembly comprises a plurality of conical blocks (7) arranged in the inner cavity of a cylinder (4), the conical blocks (7) are fixedly connected with connecting rods (6), the end faces of the conical blocks (7) close to the center of the cross beam (5) are rotatably connected with screws (8), the end faces of the cylinder (4) are fixedly connected with threaded sleeves (9), the screws (8) penetrate the threaded sleeves (9) and are threadedly connected thereto, the side walls of the conical blocks (7) are slidably connected with a plurality of push rods (10), the other ends of the push rods (10) penetrate the cylinder (4) and are movably connected thereto, and the other ends of the push rods (10) are fixedly connected with an arc plate (11).

2. The yield steel beam for mining according to claim 1 is characterized in that: The end of the push rod (10) close to the conical block (7) is fixedly connected with a sliding block (12), and a sliding groove (13) is provided on the side wall of the conical block (7), and the sliding block (12) is slidably connected to the sliding groove (13).

3. The yield steel beam for mining according to claim 1 is characterized in that: The end surface of the screw (8) is provided with a grouting hole (14), the side wall of the screw (8) is provided with a plurality of grout outlet holes (15) in the inner cavity of the cylinder (4), the end surfaces of the conical blocks (7) are provided with through holes (16), and the side wall of the cylinder (4) is provided with a plurality of filling holes (17).

4. The yield steel beam for mining according to claim 1 is characterized in that: The side wall of the screw rod (8) is located outside the cylinder (4) and is threadedly connected to a nut (18), and the nut (18) is threadedly connected to the threaded sleeve (9).

5. The yield steel beam for mining according to claim 1 is characterized in that: The side wall of the cylinder (4) is provided with a plurality of grooves (19), and the arc-shaped plates (11) are all located in the grooves (19).

6. The yield steel beam for mining according to claim 1, characterized in that: A plurality of protrusions (20) are fixedly connected to the side walls of the arc-shaped plate (11).

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