CN212774346U - Anchor filling device for rock drill - Google Patents
Anchor filling device for rock drill Download PDFInfo
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- CN212774346U CN212774346U CN202020737553.6U CN202020737553U CN212774346U CN 212774346 U CN212774346 U CN 212774346U CN 202020737553 U CN202020737553 U CN 202020737553U CN 212774346 U CN212774346 U CN 212774346U
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- anchor
- rock drill
- mounting hole
- injection device
- drill
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Abstract
The utility model provides an anchor injection device for a rock drill, which belongs to the technical field of mine equipment and comprises a step I, a step II and a step III which are sequentially arranged in a step shape from bottom to top; the step I, the step II and the step III are coaxially arranged; the bottom of the step I is provided with a mounting hole I for connecting the output end of the rock drill piston; mounting holes II for fixing anchor rods are formed in the second step and the third step; the first mounting hole is communicated with the second mounting hole. Utilize the utility model discloses a rock drill is with annotating the anchor ware has reduced and has annotated the anchor ware and change the frequency, can greatly reduced construction cost, and then has realized the technological effect who improves rock drill drilling efficiency.
Description
Technical Field
The utility model relates to a mine equipment technical field, more specifically relates to an anchor ware is annotated to rock drill.
Background
In the process of mining iron ores, blast holes are drilled in rock layers by using rock drills so as to put explosive to explode the rocks, and therefore the process of mining stone materials is completed.
In the drilling process, a piston of the rock drill does high-frequency reciprocating motion and continuously impacts a drill bit tail of the anchor rod, a sharp-wedge-shaped anchor rod bit crushes rocks, and the rock drill is connected with the anchor rod through an anchor injection device.
However, there are disadvantages in the drilling process as follows:
one anchor injecting device needs to be replaced every 21-28 anchor rods, and installation efficiency is reduced.
Therefore, an anchor injection device for a rock drill with long service life is needed.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a long service life is notes anchor ware for rock drill to solve the problem that needs frequently change and annotate the anchor ware.
The utility model provides an anchor injection device for a rock drill, which is used for connecting the output end of a rock drill piston and an anchor rod,
the device comprises a first step, a second step and a third step which are sequentially arranged from bottom to top in a step shape; the step I, the step II and the step III are coaxially arranged;
the bottom of the step I is provided with a mounting hole I for connecting the output end of the rock drill piston;
mounting holes II for fixing anchor rods are formed in the second step and the third step;
the first mounting hole is communicated with the second mounting hole.
In addition, the preferable structure is that a base is arranged at the bottom of the first step, and the diameter of the base is smaller than that of the first step; and the number of the first and second electrodes,
the mounting hole extends downward through the base.
In addition, the preferred structure is that the height of the step one is 80-5000 mm.
In addition, the preferred structure is, step one, step two and step three are the integrated into one piece structure.
In addition, the preferable structure is that the inner diameter of the second mounting hole is 3-8mm larger than the diameter of the anchor rod.
In addition, the cross section of the second mounting hole is circular or hexagonal.
In addition, the preferable structure is that the anchor injecting device is a steel Q345 piece or a carbon fiber T300 piece.
According to the technical scheme above, the utility model provides a rock drill is with annotating anchor ware, beneficial effect is as follows:
1. the service life of the anchor injecting device is prolonged by arranging the anchor injecting device into a multi-step shape;
2. the replacement frequency of the anchor injection device is reduced, the construction cost can be greatly reduced, and the technical effect of improving the drilling efficiency of the rock drill is achieved.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a schematic structural diagram of an anchor injection device 1 for a rock drill according to the present invention;
fig. 2 is a schematic structural diagram of an anchor injection device of the rock drill of the present invention in an embodiment 2;
wherein the reference numerals include: 1. a step III; 2. a step II; 3. a step I; 4. a second mounting hole; 5. a first mounting hole; 6. a base.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
To the aforesaid problem that proposes erect tunnel rig in the tunnel and waste time and energy, the utility model provides a new rock drill is with annotating anchor ware to solve above-mentioned problem.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
It should be noted that the rock drill works according to the impact crushing principle, and does high-frequency reciprocating motion to continuously impact the drill shank. Under the action of impact force, the wedge-shaped bit crushes and drills the rock to a certain depth to form a dent. After the drill rod is withdrawn, the drill rod rotates a certain angle and moves forwards, and a new dent is formed when the drill rod end is impacted again. The segmental rock mass between the two indents is sheared by the horizontal force component generated on the bit. The drill bit shank is continuously impacted, and compressed air or pressure water is continuously input from the central hole of the drill bit to form a circular drill hole with a certain depth outside the rock slag hole. And the rock drill needs to be connected with the rock bolt through the anchor injection device.
The existing anchor injection device comprises a base used for being connected with the output end of a rock drill piston and a boss arranged on the base, wherein a mounting hole used for fixing an anchor rod is formed in the boss.
Example 1
In order to illustrate the structure of the anchor injection device for the rock drill provided by the present invention, fig. 1 exemplarily indicates the structure of the anchor injection device for the rock drill; specifically, fig. 1 is a schematic structural diagram of an embodiment 1 of the anchor injection device for the rock drill of the present invention. As shown in figure 1 of the drawings, in which,
an anchor injection device for a rock drill comprises a step I3, a step II 2 and a step III 1 which are sequentially arranged from bottom to top in a step shape; the step I3, the step II 2 and the step III 1 are coaxially arranged; the bottom of the step I3 is provided with a mounting hole I5 used for connecting the output end of the rock drill piston; a second mounting hole 4 for fixing an anchor rod is formed in the second step 2 and the third step 1; the first mounting hole 5 is communicated with the second mounting hole 4.
Specifically, in order to buffer the impact of the piston and further prolong the service life of the anchor injection device, the anchor injection device is set to be of a multi-step structure, and the diameter size of each step is gradually reduced from bottom to top. In the specific implementation process, the radius of the first step is 40mm, the radius of the second step is 25mm, and the radius of the third step is 15 mm. The diameter of step one is located at the bottom most, and the diameter of step three is located at the top least.
Furthermore, the anchor injection device is arranged to be of a multi-step structure, so that the anchor injection device is convenient to hold and install and convenient to operate.
During drilling, the piston reciprocates in the cylinder at a frequency of more than 1800 times/min, and the piston is subjected to strong impact each time; when the pneumatic rock drill works, the piston stroke, the piston return stroke and the drill rod rotate, and the drill rod still rotates for 1 angle after impacting once, so that the piston is still subjected to certain torque. When the piston stroke approaches the striking point, the impact hammer impacts the drill rod forward at a very high final speed (above 9 m/s). And the inner diameter of the second mounting hole is 3-8mm larger than the diameter of the anchor rod in order to buffer impact. In a specific implementation process, the inner diameter of the second mounting hole is set to be 5mm larger than the diameter of the anchor rod. The anchor rod is a hollow hexagonal drill rod. The cross section of the second mounting hole can be circular or hexagonal.
In order to enhance the bearing effect of the anchor injection device, all stages of the anchor injection device can be integrally cast and molded.
When drilling in the higher positions of tunnel roof wait height, need constructor to set up the frame operation, set up step one into stock extension section, set up the height of step one into 80-5000 mm. When the anchor rod with higher anchoring strength is grouted, the operation of erecting a frame is not needed, the construction links are reduced, and the construction efficiency is improved. In a specific implementation process, the first step can be a section of steel pipe and is movably sleeved on the second step. The first step, the second step and the third step can be integrated into a whole.
In order to improve the bearing effect of the anchor injection device, the anchor injection device can be Q345 pieces of steel or T300 pieces of carbon fiber.
Example 2
In order to illustrate the structure of the anchor injection device for the rock drill provided by the present invention, fig. 2 exemplarily indicates the structure of the anchor injection device for the rock drill; specifically, fig. 2 is a schematic structural diagram of an embodiment 2 of the anchor injection device for the rock drill of the present invention. As shown in figure 2 of the drawings, in which,
an anchor injection device for a rock drill comprises a step I3, a step II 2 and a step III 1 which are sequentially arranged from bottom to top in a step shape; the step I3, the step II 2 and the step III 1 are coaxially arranged; the bottom of the step I3 is provided with a mounting hole I5 used for connecting the output end of the rock drill piston; a second mounting hole 4 for fixing an anchor rod is formed in the second step 2 and the third step 1; the first mounting hole 5 is communicated with the second mounting hole 4.
In order to further buffer the impact of the piston and further prolong the service life of the anchor filling device, a base 6 is arranged at the bottom of the step I3, and the diameter of the base 6 is smaller than that of the step I; the second mounting hole 4 extends downwards to penetrate through the base 6. In a specific implementation, the radius of the base 6 is set to 30 mm.
The specific operation flow is as follows:
1. firstly, inserting the output end of a piston of the rock drill into a first mounting hole 5 of a base 6;
2. then inserting the anchor rod into a second mounting hole 4 of the first step 3 of the anchor injection device;
3. and opening the rock drill to drill.
Taking the mining engineering of chromite in south of Apocynum venetum I and II ore groups as an example, the engineering is positioned on a deep fracture zone of Blueda river, rocks are broken, and the engineering geological conditions are complex; the roadway engineering requires all supporting, the supporting is carried out according to the proportion of 30 percent of shotcrete net, 40 percent of masonry concrete and 30 percent of shotcrete concrete, and the supporting workload of the shotcrete net is large in the actual construction process. In the digging and supporting construction process, an YT28 pneumatic rock drill is matched with an anchor injection device to carry out anchor rod construction.
The roadway engineering quantity of the mining engineering is 4200m, wherein the supporting length of a spray anchor net is more than or equal to 1400m, about more than or equal to 9807 anchor rods, if the existing anchor injecting device is used all the time, more than or equal to 390 anchor rods are needed, the unit price is 150 yuan per anchor rod, and the total cost is more than or equal to: 150 × 390 ═ 58500 yuan. The anchor injection device of the utility model needs about 100, the unit price is 165 yuan/one, and the total cost is 165 x 100 ═ 16500 yuan. The cost is reduced by about 70 percent.
Can find out through above-mentioned embodiment, the utility model provides a rock drill is with annotating single life extension of anchor ware has reduced annotating the anchor ware and has changed the frequency, can greatly reduced construction cost, and then has realized the technological effect who improves rock drill drilling efficiency.
The anchor injection device for a rock drill according to the present invention has been described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the above-described anchor injection device for a rock drill without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (7)
1. An anchor injection device for a rock drill is used for connecting the output end of a rock drill piston and an anchor rod and is characterized in that,
the device comprises a first step, a second step and a third step which are sequentially arranged from bottom to top in a step shape; the first step, the second step and the third step are coaxially arranged;
the bottom of the step I is provided with a mounting hole I for connecting the output end of the rock drill piston;
mounting holes II for fixing the anchor rods are formed in the second step and the third step;
the first mounting hole is communicated with the second mounting hole.
2. The anchor injection device for the rock drill is characterized in that a base is arranged at the bottom of the first step, and the diameter of the base is smaller than that of the first step; and the number of the first and second electrodes,
the mounting hole extends downward through the base.
3. An anchor injector for a rock drill as claimed in claim 1 wherein the step one has a height of 80-5000 mm.
4. The anchor injector for the rock drill as claimed in claim 1, wherein the first step, the second step and the third step are of an integrally formed structure.
5. The anchor injector for the rock drill as claimed in claim 1, wherein the inner diameter of the second mounting hole is 3-8mm larger than the diameter of the anchor rod.
6. The anchor injector for the rock drill as claimed in claim 5, wherein the cross section of the second mounting hole is circular or hexagonal.
7. An anchor injector for a rock drill as claimed in claim 1 wherein the injector is a piece of steel Q345 or a piece of carbon fibre T300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020737553.6U CN212774346U (en) | 2020-05-07 | 2020-05-07 | Anchor filling device for rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020737553.6U CN212774346U (en) | 2020-05-07 | 2020-05-07 | Anchor filling device for rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774346U true CN212774346U (en) | 2021-03-23 |
Family
ID=75067166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020737553.6U Active CN212774346U (en) | 2020-05-07 | 2020-05-07 | Anchor filling device for rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774346U (en) |
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2020
- 2020-05-07 CN CN202020737553.6U patent/CN212774346U/en active Active
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