CN210948734U - Dynamic and static combination driven anchor rod recovery device - Google Patents
Dynamic and static combination driven anchor rod recovery device Download PDFInfo
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- CN210948734U CN210948734U CN201920982702.2U CN201920982702U CN210948734U CN 210948734 U CN210948734 U CN 210948734U CN 201920982702 U CN201920982702 U CN 201920982702U CN 210948734 U CN210948734 U CN 210948734U
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Abstract
A dynamic and static combination driven anchor rod recovery device comprises a smooth steel column (13) connected with an anchor rod (18) through a connector (14); the smooth steel column (13) is provided with a gas distribution part, a cylindrical impactor (3) and a baffle (2) from the connection part to the outside in sequence; the air distribution part is provided with an inner air chamber (11) and an outer air chamber (8) which are separated by a piston (9); an air outlet steel pipe (5) and an air baffle sheet (7) moving along with a piston (9) are arranged in the outer air chamber (8); the air outlet steel pipe (5) is connected with the cylindrical impactor (3); a static pressure component is arranged between the connector (14) and the exposed end part of the anchor rod (18); the static pressure component is provided with an air chamber (20) with a piston (21) and a supporting plate (15) externally connected with the piston (21); the inner air chamber (11), the outer air chamber (8) and the air chamber (20) are provided with a plurality of air inlet or outlet switches, wherein the air inlet switches are connected with air supply equipment; the utility model discloses can effectively realize retrieving the stock, and the process is simple, easy and simple to handle.
Description
Technical Field
The utility model relates to a bolting technical field, more specifically relates to a sound combination driven stock recovery unit.
Background
The anchor rod supporting technology becomes an important technical link in geotechnical engineering construction, and is widely applied to foundation pit engineering, side slope engineering, hydraulic and hydroelectric engineering, anti-floating engineering, basement engineering, railway engineering, tunnel engineering, mine roadways and other engineering. The mechanism of the anchor bolt supporting technology is as follows: the self-bearing capacity of the surrounding rock is fully exerted by utilizing the interaction of the anchor rod and the surrounding rock, and the stability of the surrounding rock is kept. For practical engineering, particularly for mine roadway engineering, after stoping is completed, many anchor rods on a stoping face are buried along with collapse of surrounding rocks, so that resource waste is caused. In order to solve the problem, anchor rod recovery technology is proposed at home and abroad. At present, the anchor rod recovery technology at home and abroad is divided into two types: firstly, utilize great power to extract the stock, secondly utilize the drilling tool cover to bore the stock. The method of extracting the anchor rod by using a large force requires that the force generating tool has a sufficiently strong capacity, and the method has a slow anchor rod recovering speed and heavy recovering equipment. The anchor rod is sleeved and drilled by a drilling tool, the drill rod of the drilling machine is hollow, the drilling machine is sleeved on the recovered anchor rod to drill, and rocks or adhesives around the anchor rod are crushed, so that the anchor rod is recovered. This type of method has a high rate of penetration, but if the bolt is bent, it is abandoned because of the difficulty in trepanning. Therefore, the existing anchor rod recovery technology is still incomplete, and the deformed anchor rod is difficult to recover, so that the recovery rate is low.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide one kind and can effectively retrieve the stock, and easy and simple to handle, the simple stock recovery unit of process.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a dynamic and static combination driven anchor rod recovery device comprises a smooth steel column (13) connected with an anchor rod (18) through a connector (14); the smooth steel column (13) is provided with a gas distribution part, a cylindrical impactor (3) and a baffle (2) from the connection part to the outside in sequence; the air distribution part is provided with an inner air chamber (11) and an outer air chamber (8) which are separated by a piston (9); an air outlet steel pipe (5) and an air baffle sheet (7) moving along with a piston (9) are arranged in the outer air chamber (8); the air outlet steel pipe (5) is connected with the cylindrical impactor (3); a static pressure component is arranged between the connector (14) and the exposed end part of the anchor rod (18); the static pressure component is provided with an air chamber (20) with a piston (21) and a supporting plate (15) externally connected with the piston (21); the inner and outer air chambers (11), (8) of the air distribution part and the air chamber (20) of the static pressure part are provided with a plurality of air inlet or outlet switches, wherein the air inlet switches are connected with air supply equipment
Furthermore, only an air inlet switch (26) is arranged in an outer air chamber (8) of the air distribution part; an air inlet switch (25) and an air outlet switch (10) are arranged in an inner air chamber (11) of the air distribution part.
Furthermore, an air chamber (20) of the static pressure component is simultaneously provided with an air inlet switch (19) and an air outlet switch (16).
Further, the gas supply apparatus is a high-pressure gas tank (23).
Further, the distance between the stay plate (15) and the connector (14) is smaller than the stroke of the piston (21) in the air chamber (20).
Furthermore, a restraint nut (1) is arranged on the outer side of the baffle.
Furthermore, two ends of the air distribution part are provided with fixing nuts.
Further, the static pressure component is tightly attached to the surrounding rock (17) where the anchor rod (18) is located.
The utility model arranges the gas distribution part on the smooth steel column which is externally connected with the anchor rod, and arranges the static pressure part at the extending end of the anchor rod; the gas distribution part can generate stress waves on the anchor rod by driving the cylindrical impacter, and the stress waves destroy the bonding of the anchor rod and a rock body to loosen the anchor rod; the static pressure part always provides an outward pulling force for the anchor rod, under the combination of dynamic force and static force, the anchor rod can be effectively recovered, the process is simple, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic structural view of a test apparatus of the present invention;
reference numerals: 1. the air cylinder comprises a nut, 2, a baffle, 3, a cylinder impactor (shown in a semi-sectional view), 4, small holes, 5, an air outlet steel pipe, 6, a fixing nut, 7, a baffle plate, 8, an outer air chamber, 9, a piston, 10, an air outlet switch, 11, an inner air chamber, 12, a fixing nut, 13, a smooth cylinder, 14, a connector, 15, a supporting plate, 16, an air outlet switch, 17, surrounding rocks, 18, an anchor rod, 19, an air inlet switch, 20, an air chamber, 21, a piston, 22, a high-pressure air pipe, 23, a high-pressure air tank, 24, a high-pressure air tank switch, a 25 air inlet quick switch and a 26 air inlet switch.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
A kind of dynamic and static combination driven anchor rod recovery unit, including the smooth steel column 13 connected with anchor rod 18 through the union 14; wherein, the smooth steel column 13 is provided with an air distribution part, a cylindrical impactor 3, a baffle 2 and a restraint nut 1 from the connection part to the outside in sequence; the air distribution part is fixed by fixing nuts 6 and 12 and is provided with an inner air chamber 11 and an outer air chamber 8 which are separated by a piston 9, wherein an air inlet switch 25 and an air outlet switch 10 are arranged in the inner air chamber 11; the outer air chamber 8 is provided with an air outlet steel pipe 5, an air baffle sheet 7 moving along with the piston 9 and an air inlet switch 26; the air outlet steel pipe 5 is connected with the cylindrical impactor 3; and a static pressure component is arranged between the connector 14 and the exposed end part of the anchor rod 18; the static pressure part is provided with an air chamber 20 with a piston 21 and a supporting plate 15 externally connected with the piston 21, the distance between the supporting plate 15 and the connector 14 is less than the stroke of the piston 21 in the air chamber 20, the supporting plate can apply thrust to the connector 14, and one side of the air chamber 20 close to the surrounding rock 17 is provided with an air inlet switch 20 and an air outlet switch 16; the intake switches 25, 26, and 20 are connected to the high-pressure gas tank 23 through the high-pressure gas pipe 22.
The specific implementation manner of the utility model is as follows:
firstly, when the anchor rod 18 is recovered, firstly taking down the parts at the outer end of the anchor rod 18, cleaning the end part of the anchor rod so as to be convenient for installing the connector 14, installing the static pressure component at the outer end of the anchor rod 18 and fixing the static pressure component by the connector 14, then fixing the air distribution component on the smooth steel column 13, installing the cylindrical impactor 3 and the baffle 2 on the smooth steel column 13 and restraining the cylindrical impactor and the baffle 2 by the restraining nut 1, and connecting the other end of the cylindrical impactor and the connector 14; the high-pressure air tank 22 and the switches are connected through the high-pressure air pipe 21, air leakage cannot be avoided, and the air outlet steel pipe 5 is inserted into the small hole 4, so that the installation of the device is completed.
Then, the air outlet switch 10, the air outlet switch 16 and the air inlet switch 26 are closed, the high-pressure air tank switch 24 is opened, the air inlet switch 19 is opened, high-pressure air is injected into the air chamber 20, the air inlet switch 19 is closed after air pressure is balanced, and then the bracing plate 15 in the static pressure part supports the connector 14, so that an outward static load is applied to the anchor rod 18; opening the switch 25, injecting high-pressure gas into the inner gas chamber 11, moving the piston 9 to the left by the high-pressure gas to the gas baffle sheet 7 to seal the port of the gas outlet steel pipe 5, and closing the gas inlet switch 25 after the gas pressure is balanced; then, the intake switch 26 is opened, high-pressure gas is injected into the outer air chamber 8, and the intake switch 26 is closed after the gas pressure is balanced.
Then, the air outlet switch 10 is opened to discharge the high-pressure gas in the inner gas chamber 11; because the inner air chamber 11 is lowered, the piston 9 and the air baffle 7 move to the right, so that the port of the air outlet steel pipe 5 is opened, and high-pressure gas in the outer air chamber 8 is sprayed out from the air outlet steel pipe 5 to push the cylindrical impactor 3 to impact the baffle 2; causing stress waves to be generated in the smooth steel columns 13; the stress wave is transmitted to the adhesive between the anchor rods 18 and the surrounding rock 17 along the anchor rods 18; when the stress wave is large enough, the adhesive is damaged, so that the anchoring end part of the anchor rod 18 is loosened, and the anchor rod 18 falls off; if the stress wave cannot break the adhesive once, the impact is repeated from step 4 until the anchor 18 falls off.
Finally, after the anchor rod 18 falls off, the high-pressure gas tank switch 24 is closed, the gas outlet switch 16 is opened, and the high-pressure gas in the gas chamber 20 is discharged; the connector 14 is unscrewed to separate the anchor 18 from the smooth steel column 13, thereby completing an anchor retrieval process.
To sum up, the utility model arranges the gas distribution part on the smooth steel column 13 which is externally connected with the anchor rod 18, and arranges the static pressure part at the extending end of the anchor rod 18; the gas distribution part can generate stress waves on the anchor rod 18 by driving the cylindrical impactor 3, and the stress waves destroy the bonding between the anchor rod 18 and the surrounding rock 17 to loosen the anchor rod; the static pressure component provides an outward pulling force to the anchor rod 18, under the combination of dynamic force and static force, the anchor rod can be effectively recovered, and the process is simple and the operation is simple and convenient.
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A dynamic and static combination driven anchor rod recovery device is characterized by comprising a smooth steel column (13) connected with an anchor rod (18) through a connector (14); the smooth steel column (13) is provided with a gas distribution part, a cylindrical impactor (3) and a baffle (2) from the connection part to the outside in sequence; the air distribution part is provided with an inner air chamber (11) and an outer air chamber (8) which are separated by a first piston (9); an air outlet steel pipe (5) and an air baffle sheet (7) moving along with a piston (9) are arranged in the outer air chamber (8); the air outlet steel pipe (5) is connected with the cylindrical impactor (3); a static pressure component is arranged between the connector (14) and the exposed end part of the anchor rod (18); the static pressure component is provided with an air chamber (20) with a second piston (21) and a supporting plate (15) externally connected with the second piston (21); the inner and outer air chambers (11, 8) of the air distribution part and the air chamber (20) of the static pressure part are provided with a plurality of air inlet or outlet switches, wherein the air inlet switches are connected with air supply equipment.
2. The anchor rod recovery device driven by the dynamic and static combination as claimed in claim 1, wherein only a third air inlet switch (26) is arranged in an outer air chamber (8) of the air distribution part; and the inner air chamber (11) of the air distribution part is simultaneously provided with a second air inlet switch (25) and a first air outlet switch (10).
3. The anchor rod recovering device driven by the dynamic and static combination as claimed in claim 1, wherein the air chamber (20) of the static pressure component is provided with a first air inlet switch (19) and a second air outlet switch (16) at the same time.
4. The dynamic-static combination driven anchor rod recovery device according to claim 1, wherein the gas supply equipment is a high-pressure gas tank (23).
5. A dynamic and static combination driven anchor rod recovering device according to claim 1, wherein the distance between the bracing plate (15) and the connector (14) is smaller than the stroke of the piston (21) in the air chamber (20).
6. The dynamic and static combination driven anchor rod recovering device according to claim 1, wherein a restraint nut (1) is arranged on the outer side of the baffle plate.
7. The dynamic and static combination driven anchor rod recycling device according to claim 1, wherein fixing nuts are arranged at two ends of the air distribution part.
8. The dynamic and static combination driven anchor rod recovery device according to claim 1, wherein the static pressure component is tightly attached to the surrounding rock (17) where the anchor rod (18) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982702.2U CN210948734U (en) | 2019-06-27 | 2019-06-27 | Dynamic and static combination driven anchor rod recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982702.2U CN210948734U (en) | 2019-06-27 | 2019-06-27 | Dynamic and static combination driven anchor rod recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN210948734U true CN210948734U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920982702.2U Active CN210948734U (en) | 2019-06-27 | 2019-06-27 | Dynamic and static combination driven anchor rod recovery device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359937A (en) * | 2019-06-27 | 2019-10-22 | 湖南科技大学 | A kind of roofbolt recovering device and recovery method of sound combination driving |
| CN112302012A (en) * | 2020-10-15 | 2021-02-02 | 韩云山 | Recoverable stock recovery plant of electric smelting formula pressure type |
-
2019
- 2019-06-27 CN CN201920982702.2U patent/CN210948734U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359937A (en) * | 2019-06-27 | 2019-10-22 | 湖南科技大学 | A kind of roofbolt recovering device and recovery method of sound combination driving |
| CN110359937B (en) * | 2019-06-27 | 2024-01-23 | 湖南科技大学 | Anchor rod recovery device driven by dynamic and static combination and recovery method |
| CN112302012A (en) * | 2020-10-15 | 2021-02-02 | 韩云山 | Recoverable stock recovery plant of electric smelting formula pressure type |
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