CN111795622A - System for blasting hole artificial high-altitude filling of explosive in mining engineering - Google Patents
System for blasting hole artificial high-altitude filling of explosive in mining engineering Download PDFInfo
- Publication number
- CN111795622A CN111795622A CN202010556975.8A CN202010556975A CN111795622A CN 111795622 A CN111795622 A CN 111795622A CN 202010556975 A CN202010556975 A CN 202010556975A CN 111795622 A CN111795622 A CN 111795622A
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- cylinder body
- telescopic rod
- rod
- bevel gear
- air bag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/14—Hand-operated tamping or loading
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
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- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a system for artificially filling explosives in high altitude by blastholes in mining engineering, which comprises a supporting rod, a cylinder body, a telescopic rod, a pushing device, an air pump, an air bag, an angle adjusting mechanism and a position adjusting mechanism, wherein the cylinder body is provided with a cylinder body; the cylinder body is arranged on the top of the supporting rod in a rotating connection mode; the telescopic rod is installed in an inner hole of the cylinder body in a sliding fit mode, a hole-shaped slot is formed in the front end of the telescopic rod, the air bag is cylindrical and is arranged in the slot, and the air bag is communicated with an air pump installed on the cylinder body through a hose; the air bag is used for clamping the gun stick; the angle adjusting mechanism is used for adjusting the angle of the cylinder body relative to the supporting rod; the position adjusting mechanism is used for adjusting the position of the telescopic rod relative to the cylinder body. The invention utilizes the air bag to clamp the gun stick, and the electric push rod is used to insert the gun stick, thereby having simple operation and high efficiency and facilitating the explosive filling operation.
Description
Technical Field
The invention relates to the technical field of mining engineering, in particular to a device for manually filling explosives in high altitude aiming at blast holes in mining engineering.
Background
Mining is an engineering technique for mining mineral resources from within the crust and the surface, and is an important raw material industry. The mined metal ore is a main raw material in the smelting industry, and the non-metal ore is an important chemical raw material and a building material.
At present, the underground mining mechanization degree is higher and higher, a series of matched mechanical equipment is arranged from rock drilling, prying detection, charging and ore removal, and the manual labor force is reduced and the mining efficiency is accelerated due to the large application of the mechanical equipment.
In the mining process, the explosive filling operation is a time-consuming and labor-consuming process, and particularly under the condition that top holes and the like need high-altitude explosive filling, operators need to spend a large amount of time to complete the explosive filling operation, so that the time schedule of the process is greatly restricted, and the explosive filling operation needs to be improved.
Disclosure of Invention
The invention provides a system for artificially filling explosives in high altitude in blastholes in mining engineering, which aims to: the operating efficiency of placing the gun rod is improved.
The technical scheme of the invention is as follows:
a system for filling explosives into blast holes in high altitude in mining engineering comprises a support rod, a cylinder body, a telescopic rod, a pushing device, an air pump, an air bag, an angle adjusting mechanism and a position adjusting mechanism;
the cylinder body is arranged at the top of the supporting rod in a rotating connection mode; the telescopic rod is installed in an inner hole of the cylinder body in a sliding fit mode, a hole-shaped slot is formed in the front end of the telescopic rod, the air bag is cylindrical and is arranged in the slot, and the air bag is communicated with an air pump installed on the cylinder body through a hose; the air bag is used for clamping a gun stick;
the angle adjusting mechanism is used for adjusting the angle of the cylinder body relative to the supporting rod; the position adjusting mechanism comprises a first driving device, a first bevel gear, a second bevel gear and a threaded column;
the first driving device is arranged on the cylinder body, a rotating output shaft of the first driving device is connected with a first bevel gear, a second bevel gear is connected with the threaded column, and the first bevel gear is meshed with the second bevel gear; one end of the threaded shaft is rotatably connected with the cylinder body, and the other end of the threaded shaft is matched with a threaded hole in the telescopic rod;
the position adjusting mechanism is used for adjusting the position of the telescopic rod relative to the cylinder body; the angle adjusting device comprises a second driving device, a third bevel gear, a fourth bevel gear, a rotating shaft, a driving gear and a rack belt; the second driving device is installed on the supporting rod, the third bevel gear is connected with a rotating output shaft of the second driving device, the rotating shaft is installed in the placing cavity of the supporting rod in a rotating connection mode, and the driving gear and the fourth bevel gear are installed on the rotating shaft; the third bevel gear is meshed with the fourth bevel gear;
two ends of the rack belt are respectively connected with two ends of the cylinder body, and the driving gear is meshed with the rack belt.
As a further improvement of the system: the outer disc of telescopic link is installed the guide, the guide cooperatees with the spacing groove of seting up in the cylinder body hole.
As a further improvement of the system: and the guide piece is also provided with a roller, and the roller is matched with the limiting groove.
As a further improvement of the system: the pushing device is an electric push rod arranged at the inner end of the slot; the inner hole wall of the air bag is provided with granular protrusions which are arranged along a spiral track.
The filling steps of the system for artificially filling the blast holes with the high altitude explosives in the mining engineering are as follows:
step one, closing an air pump, and putting a gun stick into an inner hole of an air bag;
step two, opening the air pump, and holding the gun stick by the air bag;
thirdly, adjusting an angle adjusting mechanism and a position adjusting mechanism to enable the front end of the gun rod to be positioned at the entrance of the blast hole;
step four, the telescopic rod is extended out through the position adjusting mechanism, the electric push rod is controlled to extend, and the gun rod rotates to enter the blast hole under the guidance of the spirally arranged bulges;
step five, the electric push rod continues to extend, meanwhile, the telescopic rod is recovered relative to the cylinder body, and the extension speed of the electric push rod relative to the telescopic rod is greater than the recovery speed of the telescopic rod relative to the cylinder body;
step six, reversely recovering the electric push rod, extending the telescopic rod relative to the cylinder body, and enabling the recovery speed of the electric push rod relative to the telescopic rod to be smaller than the extension speed of the telescopic rod relative to the cylinder body;
and step seven, repeating the steps from five to six until the gun stick reaches the target depth, and closing the air pump.
Compared with the prior art, the invention has the following beneficial effects: (1) the mechanism clamps the gun rod by using the air bag and inserts the gun rod by using the electric push rod, so that the operation is simple, the efficiency is high, and the explosive filling operation is convenient; (2) the telescopic rod can also move back and forth under the control of the first driving device, and the cylinder body can rotate in a pitching manner under the control of the second driving device, so that the adjustment of the front and back positions and the pitching angle of the gun stick is realized, the gun stick can be conveniently adjusted during throwing, the operation efficiency is further improved, and the position accuracy is ensured; (3) the inside arch that is equipped with the heliciform and arranges of gasbag, when the narrower and entry of porthole is downward, can control the crisscross extension/recovery of telescopic link and electric putter when inserting the gun rod, when pushing the porthole with the gun rod, utilize the relative motion between electric putter and the telescopic link, make the arch of helical arrangement can apply certain gyroscopic force for the gun rod, thereby drive the gun rod and insert the porthole with rotatory state all the time, reduce inserted resistance, make the insertion process more smooth.
Drawings
Fig. 1 is a schematic structural view of the mechanism.
Fig. 2 is a schematic structural view of a connection portion between the cylinder body and the telescopic rod.
Fig. 3 is a schematic structural view of the second driving device, the second transmission shaft, the rotating shaft and the driving gear portion.
Fig. 4 is a right side view of the telescoping rod, airbag and cannon stick portion.
Fig. 5 is a schematic control principle diagram of the mechanism.
FIG. 6 is a schematic structural view of the telescopic rod, the air bag and the electric push rod part when the second embodiment mode is adopted for insertion.
Parts in the figure are marked:
1. the device comprises a supporting rod, 2, a cylinder body, 3, an expansion rod, 4, a first driving device, 5, a first transmission shaft, 6, a threaded column, 7, a first bevel gear, 8, a second bevel gear, 9, a guide piece, 10, a limiting groove, 11, a gun rod, 12, an inserting groove, 13, an electric push rod, 14, an air bag, 15, an air pump, 16, a hose, 17, a control device, 18, a rotating rod, 19, a placing cavity, 20, an opening, 21, a driving gear, 22, a rack belt, 23, a second driving device, 24, a second transmission shaft, 25, a rotating shaft, 26, a limiting disc, 27, a third bevel gear, 28, a fourth bevel gear, 29 and a roller.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings:
as shown in fig. 1 to 5, the device for manually filling explosives into blast holes at high altitude in mining engineering provided by the invention comprises a support rod 1, a cylinder body 2, an expansion rod 3, a first driving device 4, a first transmission shaft 5, a threaded column 6, a guide piece 9, a gun stick 11, an electric push rod 13, an air bag 14, a control device 17, a rotating rod 18, a driving gear 21, a rack belt 22, a second driving device 23 and a rotating shaft 25.
Referring to fig. 1 and 2, a limiting groove 10 parallel to the axis is arranged in the inner hole of the cylinder body 2, the telescopic rod 3 is horizontally arranged and inserted into the cylinder body 2, the guide piece 9 is installed on the telescopic rod 3 and is in sliding connection with the cylinder body 2 through the limiting groove 10, and the telescopic rod 3 can only move back and forth along the inner hole of the cylinder body 2 under the guide of the guide piece. The threaded column 6 is horizontally arranged in the cylinder body 2 and is rotationally connected with the cylinder body, the telescopic rod 3 is horizontally provided with a threaded groove, and the threaded column 6 is in threaded connection with the telescopic rod 3. The first driving device 4 is a motor and is arranged on the cylinder body 2, the first transmission shaft 5 is rotatably arranged on the cylinder body 2 and is connected with an output shaft of the first driving device 4, and the first transmission shaft 5 is in transmission connection with the threaded column 6.
In an alternative embodiment, the first transmission shaft 5 is provided with a first bevel gear 7, the threaded column 6 is provided with a second bevel gear 8, and the first bevel gear 7 is meshed with the second bevel gear 8. During operation, the first transmission shaft 5 drives the first bevel gear 7 to rotate, the second bevel gear 8 rotates along with the first bevel gear 7, and finally the threaded column 6 is driven to rotate, so that the telescopic rod 3 is driven to move back and forth.
In an alternative embodiment, a limiting groove 10 is horizontally arranged in the cylinder body 2, a roller 29 is arranged on the guide member 9, and the roller 29 is positioned in the limiting groove 10 to realize rolling connection with the cylinder body 2. When the telescopic rod 3 moves, the roller 29 rolls along the limiting groove 10, so that the guiding and limiting effects can be achieved, the friction resistance can be reduced, and the telescopic rod 3 can move more stably.
As shown in fig. 1 and 3, the support rod 1 is vertically disposed below the cylinder block 2, and the rotation rod 18 is disposed at the bottom of the cylinder block 2 and rotatably connected to the upper end of the support rod 1. The support rod 1 is provided with a placing cavity 19 and an opening 20 corresponding to the placing cavity 19. The second driving device 23 is a motor, and is disposed on the supporting rod 1, and an output end of the second driving device 23 is connected to a second transmission shaft 24. A rotating shaft 25 is also arranged, which is longitudinally arranged in the placing cavity 19 and is rotatably connected with the supporting rod 1. The second transmission shaft 24 is in transmission connection with the rotating shaft 25. The driving gear 21 is fixed on the rotating shaft 25 and is positioned in the placing cavity 19, two ends of the rack belt 22 are connected with two ends of the cylinder body 2, and the driving gear 21 is meshed with the rack belt 22.
In an alternative embodiment, the second transmission shaft 24 is provided with a third bevel gear 27, the rotating shaft 25 is provided with a fourth bevel gear 28, and the third bevel gear 27 is meshed with the fourth bevel gear 28. During operation, the second transmission shaft 24 drives the third bevel gear 27 to rotate, the fourth bevel gear 28 rotates along with the third bevel gear 27, so as to drive the rotating shaft 25 and the driving gear 21 to rotate, the driving gear 21 drives the cylinder body 2 to rotate relative to the supporting rod 1 through the rack belt 22, and the pitch angle adjustment of the cylinder body 2 is realized.
In an alternative embodiment, two limiting discs 26 are arranged on the rotating shaft 25, and the limiting discs 26 are located on two sides of the driving gear 21, so that the rack belt 22 is limited, the rack belt 22 is effectively prevented from being separated from the driving gear 21, and the angle adjusting process is more stable.
As shown in fig. 1 and 4, the front end of the telescopic rod 3 is provided with a slot 12, and a cylindrical air bag is arranged in the slot 12. After the gun stick 11 is inserted into the slot 12, the air bag 14 can hold the gun stick 11. The electric push rod 13 is positioned at the inner end of the slot 12, and the electric push rod 13 is used for ejecting the gun stick 11. The cylinder body 2 is provided with an air pump 15, and the air pump 15 is communicated with the air bag 14 through a hose 16. The output end of the air pump 15 is also connected with a pressure reducing valve for adjusting the air pressure to a proper range, so that the phenomenon that the air bag 14 has overlarge pressure and cannot eject the gun stick 11 in a clamping state is avoided.
As shown in fig. 1 and 5, a control device 17 is disposed on the support rod 1 for controlling the first driving device 4, the electric push rod 13, the air pump 15 and the second driving device 23.
In an optional embodiment, the control device 17 is provided with a touch display screen, so that the first driving device 4, the electric push rod 13, the air pump 15 and the second driving device 23 can be conveniently controlled, the operation is simple, and the using effect is good.
Preferably, the air bag 14 is made of rubber materials, and the inner surface of the air bag 14 is provided with anti-skid particle protrusions, so that the clamping effect on the gun stick 11 is obviously improved, and the gun stick 11 is effectively prevented from falling. Further, the protrusions are arranged along a helical trajectory.
The device has two use modes:
in a first mode
When the gun stick fixing device is used, the gun stick 11 is inserted into the inserting groove 12, the air pump 15 inflates the air bag 14 through the hose 16, the air bag 14 expands and embraces the gun stick 11, and the gun stick 11 is fixed.
Then, the position and angle of the stick 11 can be adjusted according to the position of the blasthole: the first driving device 4 drives the telescopic rod 3 to move back and forth through the first transmission shaft 5 and the threaded column 6 in sequence, and the position of the gun stick 11 is adjusted; the second driving device 23 drives the driving gear 21 to rotate through the second transmission shaft 24 and the like, the lengths of the two sides of the rack belt 22 are changed, the cylinder body 2 rotates relative to the supporting rod 1, the inclination angle of the cylinder body 2 is adjusted, and the throwing operation is convenient.
When the gun stick 11 needs to be put down, the air in the air bag 14 is released, the air bag 14 is deflated, and the gun stick 11 is not held any more. Then, the electric push rod 13 extends to eject the gun rod 11, so that the operation is simple, the efficiency is high, and the explosive filling operation in the mining engineering is convenient.
During operation, the control device 17 can control the first driving device 4, the electric push rod 13, the air pump 15 and the second driving device 23, so that the operation is convenient, and the operation efficiency is further improved.
The method is suitable for the scene that the blasthole is loose and the angle is close to the level. When the gun stick 11 enters, the resistance is small, and the gun stick cannot easily fall out after entering, so that the gun stick can be directly inserted after the air pump 15 is closed.
Mode two
When the entry to the blasthole is down, the blasthole will typically have a narrower inner diameter to prevent the inserted stick 11 from falling out. In this case, it is necessary to consider how to push the gun barrel 11 in against the resistance.
Step one, the air pump 15 is closed, and the gun stick 11 is placed in an inner hole of the air bag 14.
And step two, the air pump 15 is opened, and the air bag 14 holds the gun stick 11.
And step three, adjusting the angle adjusting mechanism and the position adjusting mechanism to enable the front end of the gun rod 11 to be positioned at the entrance of the blast hole.
And step four, the telescopic rod 3 extends out through the position adjusting mechanism, the electric push rod 13 is controlled to extend, and the gun stick 11 moves relative to the air bag 14, so that the spirally arranged bulges generate a rotary force to the gun stick 11, and the gun stick 11 enters the blasthole in a rotary state. At this time, the gun stick 11 enters the blasthole initially, so the telescopic rod 3 and the electric push rod 13 are actuated simultaneously to provide enough thrust.
And step five, the electric push rod 13 continues to extend, meanwhile, the telescopic rod 3 is recovered relative to the cylinder body 2, and the extension speed of the electric push rod 13 relative to the telescopic rod 3 is greater than the recovery speed of the telescopic rod 3 relative to the cylinder body 2, namely, the gun barrel 11 is ensured to still move forwards relative to the blast hole. In the process, the gun barrel 11 still moves relatively to the air bag 14, so that the air bag 14 still generates a rotary force through the spirally arranged bulges, and the gun barrel 11 enters the blasthole in a rotary state.
And step six, reversely recovering the electric push rod 13, extending the telescopic rod 3 relative to the cylinder body 2, wherein the recovering speed of the electric push rod 13 relative to the telescopic rod 3 is less than the extending speed of the telescopic rod 3 relative to the cylinder body 2, namely, the gun rod 11 is ensured to move forwards relative to the blast hole all the time. In this process, the relative movement between the gun barrel 11 and the air bag 14 still exists, and the gun barrel 11 enters the blasthole in a rotating state (reverse direction).
And step seven, repeating the steps from five to six until the gun stick 11 reaches the target depth, and closing the air pump 15.
According to the mode, when the gun stick 11 is inserted, the telescopic rod 3 and the electric push rod 13 are controlled to extend/retract in a staggered mode, the gun stick 11 is made to enter in a rotating mode all the time by means of relative motion and spirally arranged protrusions, so that the inserting resistance is reduced, the inserting process is smooth, and meanwhile the stroke of the telescopic rod 3 and the stroke of the electric push rod 13 are fully utilized.
In order to ensure that a sufficient turning force can be generated, an adhesive tape may be spirally wound around the outer surface of the gun barrel 11 before the gun barrel 11 is inserted into the air bag 14, and the winding direction and lead of the adhesive tape should be substantially equal to those of the protrusions. After the air bag 14 is expanded, the gun stick 11 is manually rotated to make the adhesive tape part be jointed with the part without the bulge in the air bag 14, thereby forming a structure similar to a thread fit and increasing the rotary force generated during pushing.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (5)
1. A system for filling explosives into blast holes in high altitude in mining engineering is characterized in that: the air pump comprises a supporting rod (1), a cylinder body (2), a telescopic rod (3), a pushing device, an air pump (15), an air bag (14), an angle adjusting mechanism and a position adjusting mechanism;
the cylinder body (2) is arranged at the top of the support rod (1) in a rotating connection mode; the telescopic rod (3) is installed in an inner hole of the cylinder body (2) in a sliding fit mode, a hole-shaped slot (12) is formed in the front end of the telescopic rod (3), the air bag (14) is cylindrical and is arranged in the slot (12), and the air bag (14) is communicated with an air pump (15) installed on the cylinder body (2) through a hose (16); the air bag (14) is used for clamping the gun stick (11);
the angle adjusting mechanism is used for adjusting the angle of the cylinder body (2) relative to the supporting rod (1); the position adjusting mechanism comprises a first driving device (4), a first bevel gear (7), a second bevel gear (8) and a threaded column (6);
the first driving device (4) is installed on the cylinder body (2), a rotating output shaft of the first driving device (4) is connected with a first bevel gear (7), the second bevel gear (8) is connected with the threaded column (6), and the first bevel gear (7) is meshed with the second bevel gear (8); one end of the threaded shaft is rotatably connected with the cylinder body (2), and the other end of the threaded shaft is matched with a threaded hole in the telescopic rod (3);
the position adjusting mechanism is used for adjusting the position of the telescopic rod (3) relative to the cylinder body (2); the angle adjusting device comprises a second driving device (23), a third bevel gear (27), a fourth bevel gear (28), a rotating shaft (25), a driving gear (21) and a rack belt (22); the second driving device (23) is installed on the supporting rod (1), the third bevel gear (27) is connected with a rotating output shaft of the second driving device (23), the rotating shaft (25) is installed in the placing cavity (19) of the supporting rod (1) in a rotating connection mode, and the driving gear (21) and the fourth bevel gear (28) are installed on the rotating shaft (25); the third bevel gear (27) is meshed with the fourth bevel gear (28);
the two ends of the rack belt (22) are respectively connected with the two ends of the cylinder body (2), and the driving gear (21) is meshed with the rack belt (22).
2. The system for artificial high altitude filling of blastholes in mining projects as claimed in claim 1, wherein: the outer circular surface of the telescopic rod (3) is provided with a guide part (9), and the guide part (9) is matched with a limiting groove (10) arranged in an inner hole of the cylinder body (2).
3. The system for artificially high-altitude filling of blastholes with explosives in mining engineering of claim 2, characterized in that: and the guide piece (9) is also provided with a roller (29), and the roller (29) is matched with the limiting groove (10).
4. A system for artificial high-altitude filling of blastholes with explosives in mining projects according to any of claims 1 to 3, characterized in that: the pushing device is an electric push rod (13) arranged at the inner end of the slot (12); the inner hole wall of the air bag (14) is provided with granular protrusions which are arranged along a spiral track.
5. The system for artificially high-altitude filling of blastholes with explosives in mining engineering according to claim 4, characterized in that the filling step is as follows:
step one, closing the air pump (15), and placing the gun stick (11) into an inner hole of the air bag (14);
step two, the air pump (15) is opened, and the air bag (14) embraces the gun stick (11);
thirdly, adjusting an angle adjusting mechanism and a position adjusting mechanism to enable the front end of the gun rod (11) to be positioned at the entrance of the blast hole;
step four, the telescopic rod (3) is extended out through the position adjusting mechanism, the electric push rod (13) is controlled to extend, and the gun rod (11) rotates to enter the gun hole under the guidance of the spirally arranged bulges;
fifthly, the electric push rod (13) continues to extend, meanwhile, the telescopic rod (3) is recovered relative to the cylinder body (2), and the extension speed of the electric push rod (13) relative to the telescopic rod (3) is greater than the recovery speed of the telescopic rod (3) relative to the cylinder body (2);
step six, reversely recovering the electric push rod (13), extending the telescopic rod (3) relative to the cylinder body (2), and reducing the recovering speed of the electric push rod (13) relative to the telescopic rod (3) to be less than the extending speed of the telescopic rod (3) relative to the cylinder body (2);
and step seven, repeating the steps from five to six until the gun stick (11) reaches the target depth, and closing the air pump (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556975.8A CN111795622A (en) | 2020-06-18 | 2020-06-18 | System for blasting hole artificial high-altitude filling of explosive in mining engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556975.8A CN111795622A (en) | 2020-06-18 | 2020-06-18 | System for blasting hole artificial high-altitude filling of explosive in mining engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111795622A true CN111795622A (en) | 2020-10-20 |
Family
ID=72803489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010556975.8A Withdrawn CN111795622A (en) | 2020-06-18 | 2020-06-18 | System for blasting hole artificial high-altitude filling of explosive in mining engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111795622A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015067956A (en) * | 2013-09-26 | 2015-04-13 | 古河ロックドリル株式会社 | Explosive charging device and work machine equipped with the same |
| CN205642183U (en) * | 2016-05-26 | 2016-10-12 | 金川集团股份有限公司 | Device of explosive is filled in artifical high altitude of porthole among mining engineering |
| CN206772151U (en) * | 2017-06-08 | 2017-12-19 | 山东天宝化工股份有限公司 | Hand power screw stemming ramming machine |
| CN207132798U (en) * | 2017-08-14 | 2018-03-23 | 田志坤 | A kind of artificial high-altitude filling explosive device of borehole |
-
2020
- 2020-06-18 CN CN202010556975.8A patent/CN111795622A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015067956A (en) * | 2013-09-26 | 2015-04-13 | 古河ロックドリル株式会社 | Explosive charging device and work machine equipped with the same |
| CN205642183U (en) * | 2016-05-26 | 2016-10-12 | 金川集团股份有限公司 | Device of explosive is filled in artifical high altitude of porthole among mining engineering |
| CN206772151U (en) * | 2017-06-08 | 2017-12-19 | 山东天宝化工股份有限公司 | Hand power screw stemming ramming machine |
| CN207132798U (en) * | 2017-08-14 | 2018-03-23 | 田志坤 | A kind of artificial high-altitude filling explosive device of borehole |
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Application publication date: 20201020 |
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| WW01 | Invention patent application withdrawn after publication |