阅读说明：本技术 一种矿用玻璃钢注浆锚索锁具 (Mining glass fiber reinforced plastic grouting anchor cable lock ) 是由 韩军 崔露郁 曹晨 张明 王鑫 陈蓥 于 2021-09-28 设计创作，主要内容包括：本发明公开一种矿用玻璃钢注浆锚索锁具,包括：固定安装于煤矿巷道的锚索及锁头机构；锁头机构包括辅助组件、钢套筒、紧固组件和止浆塞；钢套筒一端面与煤矿巷道的锚固面之间设置有辅助组件；钢套筒套设于锚索的底端；紧固组件分别贯穿钢套筒和锚索；止浆塞可拆卸连接于锚索的底端开口内；辅助组件套设于锚索的底端。本发明具有易安装、易回收、磨损小、高重复利用率、阻力稳定、成本低的特点。(The invention discloses a mining glass fiber reinforced plastic grouting anchor cable lockset, which comprises: the anchor cable and the lock head mechanism are fixedly arranged on a coal mine tunnel; the lock mechanism comprises an auxiliary component, a steel sleeve, a fastening component and a grout stop plug; an auxiliary assembly is arranged between one end face of the steel sleeve and an anchoring face of the coal mine tunnel; the steel sleeve is sleeved at the bottom end of the anchor cable; the fastening assembly penetrates through the steel sleeve and the anchor cable respectively; the grout stop plug is detachably connected in the opening at the bottom end of the anchor cable; the auxiliary assembly is sleeved at the bottom end of the anchor cable. The invention has the characteristics of easy installation, easy recovery, small abrasion, high repeated utilization rate, stable resistance and low cost.)

1. The utility model provides a mining glass steel slip casting anchor rope tool to lock which characterized in that includes: an anchor cable (1) and a lock head mechanism (2) which are fixedly arranged in a coal mine tunnel;

the lock head mechanism (2) comprises an auxiliary assembly, a steel sleeve (23), a fastening assembly and a slurry stop plug (25); an auxiliary assembly is arranged between one end face of the steel sleeve (23) and an anchoring face of the coal mine roadway; the steel sleeve (23) is sleeved at the bottom end of the anchor cable (1); the fastening assemblies respectively penetrate through the steel sleeve (23) and the anchor cable (1); the grout stop plug (25) is detachably connected into the bottom end opening of the anchor cable (1); the auxiliary assembly is sleeved at the bottom end of the anchor cable (1).

2. The mining glass fiber reinforced plastic grouting anchor cable lock set according to claim 1, characterized in that: the anchor cable (1) comprises a hollow tube (11) and a plurality of glass fiber reinforced plastic stranded wires (12) wound on the outer side of the hollow tube; one end of the hollow pipe (11) penetrates through the top surface of the coal mine roadway, and the auxiliary assembly and the steel sleeve (23) are sequentially sleeved on the outer side surface of the other end of the hollow pipe from top to bottom respectively; the fastening components respectively penetrate through the steel sleeve (23) and the other end of the hollow pipe (11); the opening at the bottom end of the hollow pipe (11) is detachably connected with the grout stopping plug (25); an expansion pin (13) is wedged between the glass fiber reinforced plastic stranded wire (12) and the outer side face of the bottom end of the hollow pipe (11).

3. The mining glass fiber reinforced plastic grouting anchor cable lock set according to claim 2, characterized in that: the expansion pin (13) is wedge-shaped, and one side surface of the expansion pin is matched with the radian of the outer side surface of the hollow pipe (11).

4. The mining glass fiber reinforced plastic grouting anchor cable lock set according to claim 2, characterized in that: the fastening assembly comprises two bolts (24); one end of a screw rod of the bolt (24) sequentially penetrates through the steel sleeve (23), the plurality of glass fiber reinforced plastic stranded wires (12) and the hollow tube (11) from one side to the other side of the steel sleeve (23) and is in threaded connection with a nut; the two bolts (24) are vertically arranged in space.

5. The mining glass fiber reinforced plastic grouting anchor cable lock set according to claim 2, characterized in that: the auxiliary assembly comprises a tray (21) and a steel washer (22); the top surface of the tray (21) is attached to the anchoring surface of the coal mine roadway; the top surface of the steel gasket (22) is attached to the bottom surface of the tray (21); the bottom surface of the steel gasket (22) is attached to the top surface of the steel sleeve (23); the tray (21) and the steel washer (22) are respectively sleeved at the bottom end of the hollow pipe (11).

6. The mining glass fiber reinforced plastic grouting anchor cable lock set according to claim 4, characterized in that: the hollow tube (11) is made of PVC material.

7. The mining glass fiber reinforced plastic grouting anchor cable lock set according to claim 4, characterized in that: and a plurality of glass fiber reinforced plastic stranded wires (12) are spirally wound on the outer side surface of the hollow pipe (11) to form a reinforcing layer.

8. The mining glass fiber reinforced plastic grouting anchor cable lock set according to claim 3, characterized in that: the expansion pin (13) is arranged at an opening at the bottom end of the hollow pipe (11).

Technical Field

The invention relates to the technical field of coal mine anchor cable locks, in particular to a glass fiber reinforced plastic grouting anchor cable lock for a mine.

Background

The anchor rope is often used for side slope control, is fixed in domatic with the outer end, and the anchor section is fixed in the inside stable and rock stratum that has the bearing effect of side slope, and a large amount of fixed thick liquids are poured into to the rethread anchor rope to increase domatic cling compound and anticreep resistance, with the domatic integrality that improves, reach the purpose of administering bedding, landslide. The mining anchor cable is based on the same idea, the anchor cable is driven into a top plate to treat a top plate separation layer and crushing, is driven into a roadway side of a coal mine roadway to protect the side, and is driven into a bottom plate rock to control a bottom drum. Particularly, the occurrence of the glass fiber reinforced plastic grouting anchor cable reduces the supporting workload and the recovery workload of the coal roadway anchor rod anchor cable, so that a new solution is provided for the treatment of the broken top and bottom plates under the high ground stress condition. The traditional mining anchor cable lock comprises a sleeve and a clamping piece, wherein the sleeve is sleeved into the free end of the anchor cable, the clamping piece is wedged between the sleeve and the anchor cable, on one hand, the anchor cable is locked, and on the other hand, prestress is added. The glass fiber reinforced plastic anchor cable is easy to deform when being subjected to pressure shearing due to the special properties of the glass fiber reinforced plastic anchor cable, so that the traditional steel anchor cable lock is not suitable for the glass fiber reinforced plastic anchor cable any more, and the glass fiber reinforced plastic anchor cable lock with strong applicability does not exist in the market at present. The design of the glass fiber reinforced plastic anchor cable lock at least needs to consider the factors, firstly, the supporting strength of the anchor and the anchor cable in the matched work needs to be ensured, and then the narrow space of the underground roadway is considered, on the premise of ensuring the supporting strength, the exposed ends of the glass fiber reinforced plastic anchor cable and the lock cannot be overlong, the using amount of the anchor cable in the common underground roadway is very large, the space of a warehouse for storing the lock is limited, so that the abrasion of the anchor cable lock is reduced as much as possible, and the possibility of the reuse of the anchor cable lock is improved. Based on the consideration, the invention provides a glass fiber reinforced plastic grouting anchor cable lock for mines.

Disclosure of Invention

The invention designs the lockset for the glass fiber reinforced plastic grouting anchor cable based on the characteristic that electric sparks are not generated during cutting and drilling of the glass fiber reinforced plastic, has the characteristics of easy installation, easy recovery, small abrasion, high repeated utilization rate, stable resistance and low cost, and lays a foundation for mature use of the glass fiber reinforced plastic grouting anchor cable in mines.

In order to achieve the purpose, the invention provides the following scheme:

a mining glass fiber reinforced plastic grouting anchor cable lock comprises: the anchor cable and the lock head mechanism are fixedly arranged on a coal mine tunnel;

the lock head mechanism comprises an auxiliary assembly, a steel sleeve, a fastening assembly and a slurry stop plug; an auxiliary assembly is arranged between one end face of the steel sleeve and the anchoring face of the coal mine tunnel; the steel sleeve is sleeved at the bottom end of the anchor cable; the fastening components penetrate through the steel sleeve and the anchor cable respectively; the grout stop plug is detachably connected in the opening at the bottom end of the anchor cable; the auxiliary assembly is sleeved at the bottom end of the anchor cable.

Preferably, the anchor cable comprises a hollow tube and a plurality of glass fiber reinforced plastic stranded wires wound on the outer side of the hollow tube; one end of the hollow pipe penetrates through the top surface of the coal mine roadway, and the outer side surface of the other end of the hollow pipe is sequentially sleeved with the auxiliary assembly and the steel sleeve from top to bottom; the fastening assembly penetrates through the steel sleeve and the other end of the hollow pipe respectively; the opening at the bottom end of the hollow pipe is detachably connected with the grout stopping plug; and an expansion pin is wedged between the glass fiber reinforced plastic stranded wire and the outer side surface of the bottom end of the hollow pipe.

Preferably, the expansion pin is wedge-shaped, and one side surface of the expansion pin is matched with the radian of the outer side surface of the hollow pipe.

Preferably, the fastening assembly comprises two bolts; one end of a screw rod of the bolt sequentially penetrates through the steel sleeve, the plurality of glass fiber reinforced plastic stranded wires and the hollow pipe from one side to the other side of the steel sleeve and is in threaded connection with a nut; the two bolts are vertically arranged in space.

Preferably, the auxiliary assembly comprises a tray and a steel washer; the top surface of the tray is attached to the anchoring surface of the coal mine tunnel; the top surface of the steel washer is attached to the bottom surface of the tray; the bottom surface of the steel washer is attached to the top surface of the steel sleeve; the tray and the steel washer are respectively sleeved at the bottom end of the hollow pipe.

Preferably, the hollow tube is made of a PVC material.

Preferably, the plurality of glass fiber reinforced plastic stranded wires are spirally wound on the outer side surface of the hollow pipe to form a reinforcing layer.

Preferably, the expansion pin is arranged at the opening at the bottom end of the hollow pipe.

The invention discloses the following technical effects:

the anchor cable lock is reasonable and reliable in structural design, and compared with the traditional anchor cable lock, the anchor cable lock is simple to install and withdraw, easy to operate by workers, safe and efficient; the lockset is almost not abraded when in use, and the recycling rate is high; the vertical bolt holes are arranged, more stable resistance can be provided by locking the anchor cables through the bolts to prevent the rock stratum from separating, the use of the glass fiber reinforced plastic anchor cables in the coal mine roadway protection and top and bottom plate treatment work is perfected, and the guarantee is provided for the safe and efficient production of the coal mine.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

Fig. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic bottom view of the present invention.

Wherein, 1-anchor cable; 11-a hollow tube; 12-glass fiber reinforced plastic stranded wires; 13-expansion pin; 2-a lock mechanism; 21-a tray; 22-steel washers; 23-a steel sleeve; 24-a bolt; 25-stop plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides a mining glass fiber reinforced plastic grouting anchor cable lockset, which comprises: an anchor cable 1 and a lock head mechanism 2 which are fixedly arranged in a coal mine tunnel;

the lock mechanism 2 comprises an auxiliary component, a steel sleeve 23, a fastening component and a grout stop plug 25; an auxiliary assembly is arranged between one end face of the steel sleeve 23 and an anchoring face of the coal mine tunnel; the steel sleeve 23 is sleeved at the bottom end of the anchor cable 1; the fastening components respectively penetrate through the steel sleeve 23 and the anchor cable 1; the grout stop plug 25 is detachably connected in the opening at the bottom end of the anchor cable 1; the auxiliary assembly is sleeved at the bottom end of the anchor cable 1.

Furthermore, four through holes which are opposite to each other in pairs are formed in the side face of the steel sleeve 23 in advance, so that the fastening assembly can be fixed conveniently in the later period.

Further, the bottom of the side face of the anchor cable 1 is provided with threads, the steel sleeve 23 is in threaded connection with the anchor cable 1 through the threads, the steel sleeve 23 is screwed tightly, and the anchor cable 1 and the anchoring face of the coal mine roadway are fixed.

In a further optimized scheme, the anchor cable 1 comprises a hollow tube 11 and a plurality of glass fiber reinforced plastic stranded wires 12 wound on the outer side of the hollow tube; one end of the hollow pipe 11 penetrates through the top surface of a coal mine roadway, and the outer side surface of the other end of the hollow pipe is respectively sleeved with an auxiliary assembly and a steel sleeve 23 from top to bottom in sequence; the fastening component respectively penetrates through the steel sleeve 23 and the other end of the hollow pipe 11; a grout stop plug 25 is detachably connected to an opening at the bottom end of the hollow pipe 11; an expansion pin 13 is wedged between the glass fiber reinforced plastic stranded wire 12 and the outer side surface of the bottom end of the hollow pipe 11.

Furthermore, the outer side of the hollow tube 11 is wound with a plurality of reinforced layers formed by the glass fiber reinforced plastic stranded wires 12, the outer side surfaces of the reinforced layers are sleeved with the steel sleeve 23, and the reinforced layers and the steel sleeve 23 provide firm locking force for the hollow tube 11 to avoid falling off.

In a further optimized scheme, the expansion pin 13 is wedge-shaped, and one side surface of the expansion pin is matched with the radian of the outer side surface of the hollow pipe 11.

In a further preferred embodiment, the fastening assembly comprises two bolts 24; one end of a screw of the bolt 24 sequentially penetrates through the steel sleeve 23, the plurality of glass fiber reinforced plastic stranded wires 12 and the hollow tube 11 from one side to the other side of the steel sleeve 23 and is in threaded connection with a nut; the two bolts 24 are spatially arranged vertically.

Furthermore, the two bolts are arranged vertically and staggered up and down; the bolt and the nut are fastened and screwed to ensure good fixation of the steel sleeve 23.

In a further optimized scheme, the auxiliary components comprise a tray 21 and a steel gasket 22; the top surface of the tray 21 is attached to the anchoring surface of the coal mine tunnel; the top surface of the steel washer 22 is attached to the bottom surface of the tray 21; the bottom surface of the steel washer 22 is attached to the top surface of the steel sleeve 23; the tray 21 and the steel washer 22 are respectively sleeved at the bottom end of the anchor cable 1.

Further, the diameter of the tray 21 is not less than two times of the diameter of the steel washer 22, thrust generated by the nut locking torque is transmitted to the coal mine roadway top wall by the tray 21, initial anchoring force is generated, meanwhile, pressure of the roadway top wall is transmitted to the hollow pipe 11, working resistance is generated, surrounding rock is reinforced jointly, and displacement of the coal mine roadway top wall is prevented.

In a further optimized scheme, the hollow tube 11 is made of a PVC material.

In a further optimized scheme, a plurality of glass fiber reinforced plastic stranded wires 12 are spirally wound on the outer side surface of the hollow tube 11 to form a reinforcing layer.

Furthermore, the hollow pipe 11 is made of PVC material, a plurality of glass fiber reinforced plastic stranded wires 12 are spirally wound on the surface of the hollow pipe, and the high strength of the glass fiber reinforced plastic stranded wires 12 is utilized to improve the supporting strength of a coal mine roadway.

In a further optimized scheme, the expansion pin 13 is arranged at the opening at the bottom end of the hollow pipe 11.

The implementation process comprises the following steps:

a plurality of anchoring holes are drilled in the anchoring surface of a coal mine tunnel, the anchor cable 1 is inserted into the anchoring holes, at the moment, solidified slurry is poured into the anchoring holes through the bottom opening of the hollow tube 11, and after a certain amount of slurry is poured, the slurry stop plug 25 is used for plugging, so that the loss is avoided, and the supporting effect is influenced.

The solidified slurry is continuously poured into the anchor hole through high-pressure equipment, so that not only is the rock stratum around the anchor hole strengthened, but also the fixation of the anchor cable in the anchor hole along with the solidification of the solidified slurry is realized.

After the solidified slurry is solidified, the solidified slurry is sequentially loaded into the tray 21 and the steel washer 22, then a drilling tool is used for drilling the side surface of the hollow pipe 11 according to the through hole formed in the side surface of the steel sleeve 23, the bolt 24 is penetrated, and the nut is used for fastening, so that the fastening and the reinforcement of the whole anchor cable are finally realized.

Furthermore, in order to improve the fastening strength, the tip of the expansion pin 13 is inserted into the gap between the glass fiber reinforced plastic stranded wire 12 at the bottom end of the hollow pipe 11 and the hollow pipe 11, and is hammered and fixed in place, so that the expansion of the exposed glass fiber reinforced plastic stranded wires 12 is realized, and the locking force of the lock head mechanism 2 is improved.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.