Anchor rod for coal mine reinforcement

Abstract

The utility model discloses an anchor rod for coal mine reinforcement, and particularly relates to the technical field of anchor rods, the anchor rod comprises a supporting net layer, a transverse supporting piece is arranged at the bottom of the supporting net layer, the transverse supporting piece comprises a top plate, vertical plates are fixed to the bottoms of the two ends of the top plate, a transverse plate is fixed to the bottom of the top plate, and the top plate is connected with a main anchor rod in a penetrating mode. The anchor rod comprises a main anchor rod body and a vertical plate, the vertical plate is connected with an auxiliary anchor rod body in a penetrating mode, the main anchor rod body and the auxiliary anchor rod body each comprise a metal rod body, a pressing plate is arranged at one end of each metal rod body, and the portions, located below the pressing plates, of the metal rod bodies are connected with locking nuts in a threaded mode. Under the simultaneous fixing action of the main anchor rod and the auxiliary anchor rod, the supporting range is expanded, the working intensity of mounting the anchor rods by workers is effectively reduced, the working efficiency of the workers is improved, and the supporting effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anchor rod, concretely relates to a coal mine reinforcing anchor rod. BACKGROUND

[0002] Anchor rod is a kind of rod system structure for rock-soil body reinforcement, is usually used for the support of coal mine roadway rock stratum, and the commonly used type of anchor rod is mainly metal anchor rod, has very strong anchoring force, anchor rod is inserted into the rock stratum hole in coal mine roadway, and is used in cooperation with metal support net, can play more stable supporting effect.

[0003] The existing anchor rod is used in the operation of supporting rock stratum in coal mine roadway, and its process is mainly that workers measure anchor rod drilling position on the inner wall of roadway, drill deep hole at drilling position, the deep hole is used for anchor rod insertion, before anchor rod insertion, support net is laid on the surface of rock stratum, anchor rod is inserted into deep hole through support net, finally bolt is used to fix pressing plate at the end of anchor rod outside rock stratum, on the one hand, the extrusion of anchor rod outer wall to rock stratum inner wall of deep hole makes rock stratum more compact, on the other hand, the traction of anchor rod makes support net fixed on the surface of rock stratum, to achieve the effect of supporting rock stratum, single anchor rod can only play independent supporting effect, for large-area coal mine roadway rock stratum, a large number of anchor rods need to be installed to meet the effect of supporting support, thereby leading to the problem of large workload of coal mine rock stratum support. UTILITARIAN CONTENT

[0004] The utility model aims at providing a coal mine reinforcing anchor rod to solve the above problems in the art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A coal mine reinforcing anchor rod, comprising a support net layer, the bottom of the support net layer is provided with a transverse support, the transverse support comprises a top plate, the bottom of both ends of the top plate is fixedly provided with a vertical plate, the bottom of the top plate is fixedly provided with a horizontal plate, the top plate is penetrated and connected with a main anchor rod, the vertical plate is penetrated and connected with a vice anchor rod, the main anchor rod and the vice anchor rod both comprise a metal rod body, one end of the metal rod body is provided with a pressing plate, the metal rod body is connected with a locking nut below the pressing plate, and the metal rod body is connected with a fixed nut below the locking nut.

[0007] Preferably, screw holes are formed in the top of the horizontal plate and the side wall of the vertical plate, one end of the fixed nut is screwed into the screw hole and is threadedly connected with the metal rod body, and the locking nut can move in the screw hole.

[0008] Preferably, a taper rod is fixedly arranged at the end of the main anchor rod and the vice anchor rod, and a plurality of convex rods are arranged at the position close to the taper rod at the end of the main anchor rod and the vice anchor rod.

[0009] Preferably, the coal mine stratum outside the support net layer is provided with stratum holes, and the main anchor rod and the auxiliary anchor rod can be inserted into the stratum holes.

[0010] Preferably, the bottom of the support net layer is further provided with a vertical support, the vertical support comprises a threaded rod body, a support plate is arranged at the top end of the threaded rod body, and a base is arranged at the bottom end of the threaded rod body.

[0011] Preferably, the outer wall of the threaded rod body is further provided with a threaded seat, a fastening bolt is threadedly connected to the threaded seat, an end portion of the fastening bolt is provided with a gasket pipe, and the threaded rod body is further provided with a hexagonal prism

[0012] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0013] The main anchor rod and the auxiliary anchor rod are arranged on the transverse support, and the transverse support can support the stratum and the support net under the simultaneous fixing action of the main anchor rod and the auxiliary anchor rod, the support range is expanded through the support of the two groups of main anchor rods and auxiliary anchor rods, the working strength of the staff in installing the anchor rods is effectively reduced, the working efficiency of the staff is improved, and the supporting effect is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] 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, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the coal mine stratum, the support net layer, the transverse support and the anchor rod assembly of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the coal mine stratum, the support net layer and the transverse support of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the support net layer, the transverse support and the anchor rod assembly of the utility model;

[0019] Figure 5 It is a perspective view of the transverse support of the utility model;

[0020] Figure 6 It is an exploded view of the auxiliary anchor rod of the utility model;

[0021] Figure 7 For Figure 2 A enlarged view of middle A part;

[0022] Figure 8 A structure diagram of coal mine rock stratum and vertical support piece of the utility model;

[0023] Figure 9 An exploded view of vertical support piece of the utility model.

[0024] Mark 1, coal mine rock stratum;101, rock stratum hole;2, support net layer;3, horizontal support piece;31, roof;32, horizontal plate;33, vertical plate;34, screw hole;4, vertical support piece;41, support plate;42, hexagonal prism;43, fastening bolt;44, pad pipe;45, base;46, threaded seat;47, threaded rod body;5, main anchor rod;51, taper rod;52, convex rod;6, auxiliary anchor rod;61, pressing plate;62, locking nut;63, fixed nut. Specific embodiments

[0025] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0026] The utility model provides a kind of anchor rod for reinforcing coal mine as Figure 1 - Figure 9 As shown in a kind of anchor rod for reinforcing coal mine, including support net layer 2, the bottom of support net layer 2 is provided with horizontal support piece 3, horizontal support piece 3 includes roof 31, and the bottom of both ends of roof 31 is fixed with vertical plate 33, and the bottom of roof 31 is fixed with horizontal plate 32, and roof 31 is connected with main anchor rod 5, and vertical plate 33 is connected with auxiliary anchor rod 6, and main anchor rod 5 and auxiliary anchor rod 6 all include metal rod body, and the outer wall of the end of metal rod body is provided with external thread, and one end of metal rod body is provided with pressing plate 61, and the middle of pressing plate 61 is provided with through-hole, and the lower screw thread of metal rod body is connected with locking nut 62, and the lower connection of metal rod body of locking nut 62 is with fixed nut 63.

[0027] The top of the horizontal plate 32 and the side wall of the vertical plate 33 are provided with screw holes 34, one end of a fixing nut 63 is screwed into the screw hole 34 and is threadedly connected with the metal rod body, and the locking nut 62 can move in the screw hole 34; it should be noted that in the process of fastening the main anchor rod 5, the main anchor rod 5 is passed through the screw hole 34 of the horizontal plate 32 from bottom to top, then is passed through the support net layer 2 upwards, the pressing plate 61 is passed through the metal rod body of the main anchor rod 5 upwards, then the locking nut 62 is passed through the screw hole 34 upwards, in this process, the locking nut 62 is screwed on the end of the metal rod body by using a wrench, at this time, the metal rod body is fixed below the support net layer 2, the main anchor rod 5 fixes the support net layer 2 to achieve the anchoring effect, finally, the end of the fixing nut 63 is screwed in the screw hole 34, in the process of entering the screw hole 34, the end of the fixing nut 63 is also screwed with the metal rod body, thereby further fixing the metal rod body, and fixing the top plate 31 below the support net layer 2, and the installation process of the auxiliary anchor rod 6 is the same as that of the main anchor rod 5.

[0028] As shown in Figure 2 , Figure 4 , Figure 6 , Figure 7 , the end of the main anchor rod 5 and the auxiliary anchor rod 6 is fixed with a taper rod 51, and a plurality of convex rods 52 are arranged at the position close to the taper rod 51 at the end of the main anchor rod 5 and the auxiliary anchor rod 6; the outside of the support net layer 2 is the coal mine stratum 1, the coal mine roadway is below the coal mine stratum 1, the stratum hole 101 is arranged in the coal mine stratum 1, the main anchor rod 5 and the auxiliary anchor rod 6 can be inserted into the stratum hole 101, in the process of inserting the main anchor rod 5 and the auxiliary anchor rod 6 into the stratum hole 101, the anchoring agent (not shown in the figure) needs to be put into the stratum hole 101, the anchoring agent is a prior art, which will not be described here, in the process of inserting the main anchor rod 5 and the auxiliary anchor rod 6 into the stratum hole 101, by rotating the main anchor rod 5 and the auxiliary anchor rod 6, the end of the main anchor rod 5 and the auxiliary anchor rod 6 can drive the taper rod 51 and the convex rod 52 to rotate, the taper rod 51 and the convex rod 52 can extrude the anchoring agent, thereby the anchoring agent can be more uniformly pressed into the stratum hole 101, and the anchoring agent can bond and fix the main anchor rod 5 and the auxiliary anchor rod 6 in the stratum hole 101.

[0029] As shown in Figure 1 , Figure 8 and Figure 9As shown, the bottom of the support net layer 2 is further provided with a vertical support 4, the vertical support 4 comprises a threaded rod body 47, the top end of the threaded rod body 47 is provided with a support plate 41, the bottom end of the threaded rod body 47 is provided with a base 45; the outer wall of the threaded rod body 47 is further provided with a threaded seat 46, the threaded seat 46 is threadedly connected with a fastening bolt 43, the end of the fastening bolt 43 is provided with a gasket pipe 44, the threaded rod body 47 is further provided with a hexagonal prism 42, in the operation of supporting the coal mine stratum 1, after laying the support net layer 2 on the surface of the coal mine stratum 1, the distance between the surface of the support net layer 2 and the surface of the coal mine roadway is manually measured, then the top end of the threaded rod body 47 is threadedly connected with the support plate 41, the bottom end of the threaded rod body 47 is threadedly connected with the base 45, at this time, the distance between the top of the support plate 41 and the bottom of the base 45 needs to be ensured as the distance between the surface of the support net layer 2 and the surface of the coal mine roadway, so as to ensure that the vertical support 4 can stably support the support net layer 2 and the coal mine stratum 1 outside the support net layer 2, thereby achieving the effect of auxiliary supporting the coal mine stratum 1, and further, by passing the fastening bolt 43 through the threaded seat 46, the end of the fastening bolt 43 passes through the support net layer 2 or the coal mine stratum 1, the purpose of fixing the threaded rod body 47 can be further achieved, thereby improving the stability of the threaded rod body 47 in the coal mine roadway.

[0030] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description 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 coal mine reinforcement anchor bolt, comprising a support mesh layer (2), characterized in that: The bottom of the support mesh layer (2) is provided with a horizontal support member (3). The horizontal support member (3) includes a top plate (31). The bottom of both ends of the top plate (31) is fixed with vertical plates (33). The bottom of the top plate (31) is fixed with a horizontal plate (32). The top plate (31) is connected through a main anchor rod (5). The vertical plate (33) is connected through a secondary anchor rod (6). Both the main anchor rod (5) and the secondary anchor rod (6) include a metal rod body. One end of the metal rod body is provided with a pressure plate (61). The metal rod body is threadedly connected to a locking nut (62) below the pressure plate (61). The metal rod body is connected to a fixing nut (63) below the locking nut (62).

2. The anchor bolt for coal mine reinforcement according to claim 1, characterized in that: The top of the horizontal plate (32) and the side wall of the vertical plate (33) are provided with screw holes (34). One end of the fixing nut (63) is threaded into the screw hole (34) and threadedly connected to the metal rod. The locking nut (62) can move in the screw hole (34).

3. The anchor bolt for coal mine reinforcement according to claim 1, characterized in that: Both the main anchor (5) and the secondary anchor (6) are fixed with tapered rods (51) at their ends, and multiple protruding rods (52) are provided at the ends of the tapered rods (51) near the tapered rods (51).

4. The anchor bolt for coal mine reinforcement according to claim 3, characterized in that: The support mesh layer (2) is surrounded by coal mine rock strata (1), and rock strata holes (101) are provided in the coal mine rock strata (1). The main anchor (5) and the secondary anchor (6) can be inserted into the rock strata holes (101).

5. The anchor bolt for coal mine reinforcement according to claim 1, characterized in that: The bottom of the support mesh layer (2) is also provided with a vertical support member (4), which includes a threaded rod (47), a support plate (41) is provided at the top of the threaded rod (47), and a base (45) is provided at the bottom of the threaded rod (47).

6. The anchor bolt for coal mine reinforcement according to claim 5, characterized in that: The outer wall of the threaded rod (47) is also provided with a threaded seat (46), the threaded seat (46) is threadedly connected with a fastening bolt (43), the end of the fastening bolt (43) is provided with a washer tube (44), and the threaded rod (47) is also provided with a hexagonal prism (42).

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