CN214660272U

CN214660272U - Anchor rod with anchoring function

Info

Publication number: CN214660272U
Application number: CN202120939703.6U
Authority: CN
Inventors: 王子越; 罗超; 姜鹏飞; 陈志良; 曹晓明; 刘畅; 郭吉昌; 韦尧中; 王正胜; 高富强; 何宗科
Original assignee: Ccteg Coal Mining Research Institute Co ltd; Tiandi Science and Technology Co Ltd
Current assignee: Ccteg Coal Mining Research Institute Co ltd; Tiandi Science and Technology Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-09
Anticipated expiration: 2031-04-30

Abstract

The utility model provides an anchor stock with anchor function, including the stock body, the stock body is provided with the external screw thread along first section and the second section including following self axial division in the first section. The anchor rod body is internally provided with a middle hole, and a mixer for mixing the anchoring agent is arranged in the middle hole. According to the utility model discloses stock with anchor function of annotating, first section are used for connecting construction equipment in order to bore a hole or place the stock, set up in the inside mixed flow ware of stock body and make the anchoring agent by intensive mixing after passing through the stock, strengthen the anchoring force of anchoring agent. The utility model provides an anchor pole with anchor note function, simple structure can realize surrounding rock effectively and strut.

Description

Anchor rod with anchoring function

Technical Field

The utility model relates to a technical field is strutted in the coal road, concretely relates to stock with anchor annotates function.

Background

The existing temporary support of the coal mine roadway mainly comprises mechanical support devices which are generally arranged on tunneling equipment, and after the roadway is tunneled, the whole newly excavated area is covered to shield falling objects for operating personnel. However, the existing temporary support plays a role in shielding and protecting after the surrounding rock deforms, and cannot generate active and rapid support force for a newly excavated area before the surrounding rock deforms.

The anchor bolt support can effectively control the deformation of surrounding rocks, and is widely applied to the fields of domestic and foreign coal mines, metal mines and the like. Taking coal mine roadway support as an example, the existing anchor bolt support process flow is as follows: and (3) punching a hole on the coal rock wall by using a drill rod, manually plugging the resin anchoring agent into the punched hole, putting the anchor rod into the hole, stirring, and pre-tightening the anchor rod after the anchoring agent is solidified. The existing anchor bolt support construction process has the main problems that: 1. the difficulty of manually plugging the anchoring agent into the drill hole is high, especially when the coal rock mass is broken and the wall of the drill hole is uneven, a large amount of time is consumed to complete the installation of the anchoring agent, so that the anchoring agent is wasted, the supporting efficiency is reduced by 2, the drill hole is reduced, the anchoring agent is installed and pre-tightening is completed by using different tools, and the time consumed for disassembling the drill rod and switching different tools is long. The existing anchor rod construction process is long in time consumption, low in efficiency, high in labor intensity of workers and high in automation realization difficulty, and cannot meet the requirement of rapid support of a coal mine tunnel.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides an anchor rod with anchor and annotate function.

The anchor rod with the anchoring function comprises an anchor rod body, wherein the anchor rod body comprises a first section and a second section, and the first section is provided with an external thread; the anchor rod body is internally provided with a middle hole, and a mixer for mixing anchoring agent is arranged in the middle hole.

According to the utility model discloses stock with anchor function of annotating, first section are used for connecting construction equipment in order to bore a hole or place the stock, set up in the inside mixed flow ware of stock body and make the anchoring agent by intensive mixing after passing through the stock, strengthen the anchoring force of anchoring agent. The utility model provides an anchor pole with anchor function, simple structure can realize effectively that the country rock is strutted, and the operation is strutted in the specially adapted coal road.

In some embodiments of the invention, the flow mixer is disposed within the first section.

The utility model discloses an among some embodiments, the mixed flow ware is including linking firmly center pin and heliciform blade as an organic whole, the center pin with the coaxial setting of stock body, the heliciform blade centers on the center pin sets up.

In some embodiments of the present invention, the number of the flow mixers is plural, and the flow mixers are connected end to end.

In some embodiments of the invention, the external thread and the helical transverse rib have the same or opposite directions of rotation.

In some embodiments of the invention, the first section and the second section are integrally formed.

Among some embodiments of the utility model, the first section is kept away from the tip of second section is provided with the locating part, the locating part is followed the size of stock body radial direction is greater than the size of stock body along this direction.

In some embodiments of the present invention, the stopper includes a sleeve, the diameter of the inner hole of the sleeve is equal to or slightly larger than the diameter of the anchor rod body, and a flange is provided on the outer peripheral surface of the sleeve.

In some embodiments of the invention, a pretensioning assembly is provided on the first section.

The utility model discloses an among some embodiments, pretension subassembly includes nut and saucer, the nut spiral shell is located on the first section, the saucer cover is located on the first section, the saucer compare in the nut is close to the second section sets up.

Drawings

Fig. 1 is a schematic view of an anchor rod with an anchor grouting function according to the present invention;

fig. 2 is a cross-sectional view of the anchor rod of fig. 1 with an anchoring function;

FIG. 3 is an enlarged view of a portion of the mixer of FIG. 2.

Reference numerals:

10. an anchor body; 11. a first stage; 111. an external thread; 12. a second stage; 121. a helical cross rib; 13. a mesopore; 14. a flow mixer; 141. a central shaft; 142. a helical blade.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

According to the utility model discloses stock with anchor function, it is applied to the operation of coal mine tunnel support, also can be applied to needs such as side slope, tunnel and carry out reinforced (rfd) scene to the construction basis.

As shown in fig. 1 to 3, the utility model provides an anchor rod with anchor function, including anchor rod body 10, anchor rod body 10 is provided with external screw thread 111 along including first section 11 and the second section 12 of following self axial division on the first section 11. The anchor rod body 10 is internally provided with a middle hole 13, two ends of the middle hole 13 are respectively provided with at least one slurry inlet hole and at least one slurry outlet hole which are communicated with the external environment of the anchor rod body 10, and the middle hole 13 is internally provided with a mixer 14 for mixing anchoring agent.

When carrying out the stock construction operation, at first embolia the external screw thread 111 on the first section 11 with the threaded connection spare spiral, again with threaded connection spare fixed connection in construction equipment, the power of construction equipment passes through threaded connection spare and transmits to stock body 10 to put into the country rock with stock body 10. Optionally, can a drill bit of fixed connection on the stock body 10, it is rotatory to drive stock body 10 through the construction equipment, and the drill bit carries out drilling operation on the country rock, and along with the attack of drill bit, stock body 10 gets into in the middle of the drilling in the lump, realizes drilling operation and places the stock and go on in step. Optionally, the drilling operation can also be performed by using a drilling machine before the anchor rod is placed, the anchor rod body 10 is placed in the drill hole, the construction machine can only drive the anchor rod body 10 to advance into the drill hole, and the construction machine can also drive the anchor rod body 10 to rotate while driving the anchor rod body 10 to advance so as to overcome the resistance when the anchor rod body 10 enters the drill hole.

After the anchor rod body 10 is placed in place, the anchoring agent pump pumps the anchoring agent into the middle hole 13 from the grouting hole, the anchoring agent is firstly mixed and stirred by the mixer 14, and after being uniformly stirred, the anchoring agent continuously flows along the middle hole 13 until the anchoring agent is discharged from the grout outlet hole, fills a gap between the anchor rod body 10 and a drilled hole, and is solidified after a period of time, so that the anchoring operation is completed.

The utility model discloses an among some embodiments, mixed flow ware 14 sets up the position that is close to the injected hole in first section 11, and the anchoring agent flows in from the injected hole, goes out the thick liquid hole and flows, sets up mixed flow ware 14 in the position that is close to the injected hole, can make the anchoring agent just begin to mix the stirring at the initial stage that gets into mesopore 13.

In some embodiments of the present invention, the flow mixer 14 includes a central shaft 141 and a spiral blade 142 that are fixedly connected together, the central shaft 141 and the anchor rod body 10 are coaxially disposed, and the spiral blade 142 is disposed around the central shaft 141. When flowing in the mixer 14, the anchoring agent is guided by the helical blade 142, and the flow path of the anchoring agent is helical, so that the anchoring agent rotates around the central shaft 141 continuously, and the function of mixing the anchoring agent is achieved. Meanwhile, when the anchoring agent flows along the axial direction, the anchoring agent impacts the spiral blades 142 to generate turbulence, and the mixing effect is enhanced.

In some embodiments of the present invention, the number of the flow mixers 14 is plural, and the plural flow mixers 14 are connected end to end. The length of the anchoring agent flowing through the flow mixer 14 affects the mixing effect of the anchoring agent, and the longer the length of the anchoring agent flowing through the flow mixer 14 is, the better the mixing effect is; the shorter the length of the anchoring agent flow through the flow mixer 14, the greater the anchoring agent flow rate at a constant anchoring agent pump power. For anchoring agents with different properties or different construction requirements, the mixing requirements of the anchoring agents are different, and the mixing effect of the flow mixer 14 on the anchoring agents is changed by adjusting the number of the flow mixers 14. The multiple flow mixers 14 can be mutually independent and are fixedly connected into a whole by welding, clamping and the like before being placed into the middle hole 13; the plurality of mixers 14 may also be manufactured together as one piece in opposition at the time of manufacture.

In some embodiments of the present invention, the second section 12 is provided with a spiral cross rib 121, and the rotation directions of the external thread 111 and the spiral cross rib 121 are the same or opposite. The external thread 111 and the spiral transverse rib 121 have the same rotating direction, and are convenient to process and construct. When the external thread 111 and the spiral transverse rib 121 are rotated in opposite directions, the spiral transverse rib 121 can compress the anchoring agent when the anchor body 10 rotates, thereby improving the anchoring strength. When the anchoring agent flows into the gap between the anchor body 10 and the borehole, the anchoring agent flows into the spiral cross rib 121 on the second section 12, and after the anchoring agent is cured, the anchoring agent cured in the spiral cross rib 121 can increase the anchoring force between the anchor body 10 and the surrounding rock.

The utility model discloses an among some embodiments,

first section

11 and 12 integrated into one piece of second section have avoided stress concentration and the metal fiber phenomenon of rupture that secondary operation or assembly caused, have improved the performance of stock, have also reduced the cost of stock simultaneously.

Among some embodiments of the present invention, the end of the first section 11 away from the second section 12 is provided with a limiting part, and the size of the limiting part along the radial direction of the anchor rod body 10 is larger than the size of the anchor rod body 10 along the direction. After anchor rod body 10 was put into the drilling and reached certain length, locating part and country rock butt formed the backstop, prevented anchor rod body 10 further entering drilling for anchor rod body 10 has the exact position.

The utility model discloses an among some embodiments, the locating part includes the sleeve, and sleeve hole diameter equals or slightly is greater than stock body 10 diameter, and the sleeve external diameter slightly is less than the drilling size, is provided with the flange on the sleeve peripheral surface. After the anchor rod body 10 is placed into the drilled hole and reaches a certain length, the sleeve enters the drilled hole to play a guiding role, the flange abuts against the surrounding rock and forms a stop, and the anchor rod body 10 is prevented from further entering the drilled hole. Alternatively, the limiting member may be in other forms, such as a limiting nail disposed along the radial direction of the anchor rod body 10.

In some embodiments of the present invention, a pretensioning assembly is provided on the first section 11. During the construction operation of the anchor rod body 10, a certain pre-tightening force needs to be applied to the anchor rod body 10 to improve the supporting effect of the anchor rod body 10. When sending into the stock body 10 in the drilling, the pretension subassembly advances along with the stock body 10 together, puts in place until the stock body 10 gets into the drilling, and pretension subassembly butt is in country rock, and after the anchoring agent solidification, the construction equipment drives the pretension subassembly and rotates, realizes the pretension to the stock body 10. Optionally, the pre-tightening assembly comprises a nut and a washer, the nut is connected to the first section 11 through threads, and the washer is arranged between the nut and the surrounding rock. After the anchoring agent is solidified, the anchor rod body 10 is fixed, and the construction machine drives the nut to rotate, so that the nut rotates and moves to surrounding rocks along the anchor rod body 10, the cushion disc is compressed, pretightening force is provided, and pretightening is completed.

An anchor rod having an anchoring function according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3 as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

The first embodiment is as follows:

as shown in fig. 1 to 3, in the present embodiment, the anchor rod with anchoring function includes an anchor rod body 10, the anchor rod body 10 is cylindrical, and the anchor rod body 10 is a whole body manufactured by integral molding. The anchor rod body 10 is provided with external screw threads 111 along a first section 11 and a second section 12 which are divided along the self axial direction, the second section 12 is provided with spiral transverse ribs 121, and the rotation directions of the external screw threads 111 and the spiral transverse ribs 121 are the same. The anchor rod body 10 is internally provided with a middle hole 13, two ends of the middle hole 13 are respectively provided with a slurry inlet hole and a slurry outlet hole which are communicated with the external environment of the anchor rod body 10, the slurry inlet hole is positioned at the end surface of the first section 11 of the anchor rod body 10, and the slurry outlet hole is positioned at the end surface of the second section 12 of the anchor rod body 10.

A mixer 14 for mixing the anchoring agent is arranged in the middle hole 13, and the mixer 14 is arranged in the first section 11 close to the grouting hole. The mixer 14 includes a central shaft 141 and a spiral blade 142 which are fixedly connected together, the central shaft 141 is disposed coaxially with the anchor body 10, and the spiral blade 142 is disposed around the central shaft 141.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The anchor rod with the anchoring function is characterized by comprising an anchor rod body, wherein the anchor rod body comprises a first section and a second section, and the first section is provided with an external thread; the anchor rod body is internally provided with a middle hole, and a mixer for mixing anchoring agent is arranged in the middle hole.

2. An anchor having a grouting function according to claim 1, wherein the flow mixer is provided in the first section.

3. The anchor rod with anchoring function of claim 2, wherein the flow mixer includes a central shaft and a helical blade which are fixedly connected as a whole, the central shaft is arranged coaxially with the anchor rod body, and the helical blade is arranged around the central shaft.

4. An anchor rod with anchoring function according to claim 1, wherein the number of the flow mixers is plural, and the plural flow mixers are connected end to end.

5. A rock bolt with anchoring function according to any one of claims 1-4, characterized in that a spiral cross rib is provided on the second section, and the external thread and the spiral cross rib have the same or opposite directions of rotation.

6. A bolt with anchorage function according to any one of claims 1 to 4, wherein the first and second sections are integrally formed.

7. An anchor bolt with an anchoring function according to any one of claims 1 to 4, wherein the end of the first section remote from the second section is provided with a stopper, and the size of the stopper in the radial direction of the bolt body is larger than that of the bolt body in the direction.

8. An anchor bolt with anchoring function according to claim 7, wherein the stopper comprises a sleeve, the diameter of the inner hole of the sleeve is equal to or slightly larger than the diameter of the bolt body, and a flange is provided on the outer peripheral surface of the sleeve.

9. A bolt with an anchoring function according to any one of claims 1 to 4, wherein the first section is provided with a pre-tensioning assembly.

10. The anchor rod with anchoring function of claim 9, wherein the pre-tightening assembly comprises a nut and a pad, the nut is screwed on the first section, the pad is sleeved on the first section, and the pad is arranged closer to the second section than the nut.