CN205012917U - Energy -efficient type downhole air hammer of high frequency - Google Patents
Energy -efficient type downhole air hammer of high frequency Download PDFInfo
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- CN205012917U CN205012917U CN201520625895.8U CN201520625895U CN205012917U CN 205012917 U CN205012917 U CN 205012917U CN 201520625895 U CN201520625895 U CN 201520625895U CN 205012917 U CN205012917 U CN 205012917U
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Abstract
The utility model discloses an energy -efficient type downhole air hammer of high frequency, including the outer shell, the drill bit is installed to the wherein one end of outer shell, installs the piston in the outer shell, the impact end terminal surface of piston and the impact stroke between the drill bit tail end terminal surface are 50 -80mm, the utility model discloses under the unchangeable basically circumstances of bonding secondary shock merit, the impacter frequency of impacter has been increased, promote 30% with the frequency of impacter, the corresponding adjusts the other part, reduce about 5% through set piston list secondary shock merit, requirement to the piston reduces, help prolonging the life of a whole set of impacter, though single secondary shock merit reduces to some extent, nevertheless improve because of the impacter frequency by a wide margin, so it promotes more than 20% to have realized the whole power that assaults of modification impacter, efficiency has obtained improving by a wide margin.
Description
Technical field
The utility model relates to one and is mainly used in mine blasting, water well earth source, and the down-the-hole air hammer of hill excavating and offshore filling engineering etc., relates to a kind of high-frequency efficient energy-saving type down-the-hole air hammer specifically, belong to impact device technical field.
Background technology
The quick down-the-hole air hammer of Vehicles Collected from Market is mainly used in mine blasting, water well earth source, and hill excavating and offshore filling engineering etc., the efficiency requirements of market to product is more and more higher.
Logical overpowering formula: P=10
-3ef(P: power, unit K W; E: ballistic work, unit J; F: frequency, unit Hz), put forward high-power mode and mainly contain two kinds, one is improve ballistic work E, and two is improve frequency f;
And the impactor of specification of the same race in the market, mainly by ensureing that the single-impact device merit that frequency of impact improves impactor core component piston constant realizes in improved efficiency, higher to quality requirements such as itself material capabilities of piston like this, this just increases improvement difficulty greatly.
Utility model content
Problem to be solved in the utility model is when bonding Secondary Shocks device is substantially constant, provides a kind of high-frequency efficient energy-saving type down-the-hole air hammer, adds the impactor frequency of impactor, by the frequency upgrading 30% of impactor.
In order to solve the problem, the utility model by the following technical solutions:
A kind of high-frequency efficient energy-saving type down-the-hole air hammer, comprise outer shell, wherein one end of outer shell is provided with drill bit, is provided with piston in outer shell, and the impact stroke between the impact end end face of described piston and drill bit tail end end face is 50-80mm.
Below the further optimization of the utility model to above-mentioned division:
Described piston is provided with the large end of piston and piston small end, and the end of the large end of piston has the stressed end face of piston, and the impact stroke between piston small end end face and drill bit tail end end face is 50-80mm.
Further optimization: wherein one end of described outer shell is connected with rear joint, the other end is connected with front connector, described rear joint is provided with joint air flue after high air pressure passages.
Further optimization: be embedded with inner casing in outer shell in one end of rear joint, the periphery that described inner casing coordinates with outer shell adopts step surface structure, outer disc location.
Further optimization: the large end of described piston and the interior inside wall of cylinder cooperatively interact, and the external surface of the large end of piston is provided with axially extended piston air flue.The end face of bore passage to described drill bit is provided with in described drill bit.
Further optimization: be provided with rear gas chamber in inner casing, the large end of described piston is positioned at rear gas chamber, and rear gas chamber adopts double reduction, further reduces the impact stroke of piston.
Further optimization: be provided with valve seat between the large end of piston of described piston and rear joint, is provided with the cylindrical valve seat small end stretching into inner casing in the inner chamber that described valve base sealing is arranged on outer shell.Be axially arranged with piston center hole in described piston, described piston center hole coordinates with cylindrical valve seat small end.
Further optimization:
Described valve seat is provided with the axial valve seat air flue that can be communicated with rear joint air flue; Valve seat is provided with the non retern valve for carrying out opening and closing between valve seat air flue and rear joint air flue near the position of rear joint air flue.
The utility model adopts above-mentioned division, when ensureing that single strike work is substantially constant, adding the impactor frequency of impactor, by the frequency upgrading 30% of impactor, adjusting accordingly to miscellaneous part.
About 5% is reduced by adjustment piston single strike work, the requirement of piston is reduced, contribute to the application life extending a whole set of impactor, although single strike work decreases, but because impactor frequency significantly improves, so achieve the overall percussion power of remodeling impactor to promote more than 20%, efficiency is greatly improved.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Accompanying drawing 2 is the structural representation of inner casing two-stage compression mechanism in the utility model embodiment.
In figure: 1-piston; The stressed end face of 2-piston; 3-inner casing; 4-rear gas chamber; 5-outer shell; Joint air flue after 6-; 7-valve seat air flue; 8-inner casing air flue; 9-piston air flue; 10-drill bit; Joint after 11-; 12-valve seat; 13-front connector; 14-non retern valve; 15-fairlead; 16-semi-ring; 17-sliding part; The large end of 18-piston; 19-piston small end; 20-piston center hole; 21-endoporus; 22-bore passage; 23-cylindrical valve seat small end.
Detailed description of the invention
Embodiment, as shown in Figure 1, a kind of high-frequency efficient energy-saving type down-the-hole air hammer, comprises outer shell 5, and the inwall of described outer shell 5 is provided with cannelure;
Wherein one end of described outer shell 5 is connected with rear joint 11, the other end is connected with front connector 13, and described rear joint 11 is provided with joint air flue 6 after high air pressure passages;
Described front connector 13 spline joint has drill bit 10, is provided with the end face of bore passage 22 to described drill bit 10 in described drill bit 10;
Be provided with piston 1 in the inner chamber of described outer shell 5, described piston 1 is slidably mounted on the inner chamber of outer shell 5 and middle part is provided with sliding part 17, and described sliding part 17 cooperatively interacts with the inwall of described outer shell 5;
In one end of rear joint 11, be embedded with inner casing 3 in outer shell 5, the periphery that described inner casing 3 coordinates with outer shell 5 adopts step surface structure, outer disc location.
Be provided with gas channel between described inner casing 3 outer wall and the inwall of outer shell 5, the inwall of described inner casing 3 is provided with ring-shaped ventilation groove, and described inner casing 3 two ends are respectively equipped with air inlet and steam vent;
Described piston 1 is provided with the large end 18 of piston and piston small end 19, and the end of the large end of piston 18 has the stressed end face 2 of piston, and the large end 18 of described piston cooperatively interacts with inner casing 3 inwall, and the external surface of the large end of piston 18 is provided with axially extended piston air flue 9; Impact stroke A between piston small end 19 end face and drill bit 10 tail end end face is 50-80mm, compared with traditional same specification impactor impact stroke, reduces 10%-20%.
Be provided with rear gas chamber 4 in inner casing 3, the large end 18 of described piston is positioned at rear gas chamber 4, for 8 cun of impactors: its piston stressed end face 2 lifting surface area is for 16400mm2; Compared with traditional lifting surface area, add 5%.
Make it to obtain higher impact acceleration under same pressure, and then improve the impactor end speed of piston 1.
Rear gas chamber 4 adopts double reduction, further reduces the impact stroke A of piston;
Between the large end of piston 18 of described piston 1 and rear joint 11, valve seat 12 is installed, is provided with the cylindrical valve seat small end 23 stretching into inner casing 3 in the inner chamber that the sealing of described valve seat 12 is arranged on outer shell 5;
Be axially arranged with piston center hole 20 in described piston 1, described piston center hole 20 coordinates with described valve seat 12 small end;
Described valve seat 12 is provided with the axial valve seat air flue 7 that can be communicated with rear joint air flue 6;
Valve seat 12 is provided with the non retern valve 14 for carrying out opening and closing between valve seat air flue 7 and rear joint air flue 6 near the position of rear joint air flue 6;
Position in the inner chamber of outer shell 5 between piston 1 and front connector 13 is embedded with fairlead 15,
Described fairlead 15 is provided with the endoporus 21 matched with piston small end 19;
The semi-ring 16 for accommodating drill bit 10 tail end is nested with between fairlead 15 and front connector 13.
The utility model adopts above-mentioned division, in order to improve piston impact frequency, shortens the impact stroke of piston, the length of compression piston, thus the weight of piston is reduced, because piston weight reduces, the acting tolerance of needs reduces thereupon.By design, to ensure that the minimum air consumption of piston movement is for foundation, reserved delivery of bailing air, formulates the minimum air consumption of impactor, effectively reduces the demand to tolerance.
Improve the sectional area of each venting channels, with the minimum blast consumption of piston movement for foundation, back to front in the opposite direction of gas circuit, take passage gas passing area to increase progressively 5%-10% respectively, that is:
The gas passing area of gas passing area=(1.05 ~ 1.1) × valve seat air flue 7 of rear joint air flue 6;
The gas passing area of gas passing area=(1.05 ~ 1.1) × inner casing air flue 8 of valve seat air flue 7;
The gas passing area of gas passing area=(1.05 ~ the 1.1) × piston air flue 9 of inner casing air flue 8.
Gas passage area is effectively controlled, and overall channel gas passing area reduces 10%, realizes each exhaust passage and reduces according to airflow direction staged, removes gas circuit bottleneck and ensures pressure drop, also just ensure that the operating pressure of impactor.
By the improvement of gas circuit and each gas circuit exchange point, impactor inside is divided into multiple little air chamber by original atmospheric air chamber, outside mud when dying suddenly of stopping to know clearly enters impactor inside, thus the phenomenon causing impactor to block.
Claims (10)
1. a high-frequency efficient energy-saving type down-the-hole air hammer, comprise outer shell (5), it is characterized in that: wherein one end of outer shell (5) is provided with drill bit (10), be provided with piston (1) in outer shell (5), the impact stroke between the impact end end face of described piston (1) and drill bit (10) tail end end face is 50-80mm.
2. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 1, is characterized in that:
Described piston (1) is provided with the large end of piston (18) and piston small end (19), and the end of the large end of piston (18) has the stressed end face of piston (2), and the impact stroke between piston small end (19) end face and drill bit (10) tail end end face is 50-80mm.
3. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 1, is characterized in that:
Wherein one end of described outer shell (5) is connected with rear joint (11), the other end is connected with front connector (13), and described rear joint (11) is provided with joint air flue (6) after high air pressure passages.
4. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 3, is characterized in that:
In one end of rear joint (11), be embedded with inner casing (3) in outer shell (5), the periphery that described inner casing (3) coordinates with outer shell (5) adopts step surface structure, outer disc location.
5. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 4, is characterized in that:
The large end of described piston (18) and inner casing (3) inwall cooperatively interact, and the external surface of the large end of piston (18) is provided with axially extended piston air flue (9).
6. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 1, is characterized in that:
The end face of bore passage (22) to described drill bit (10) is provided with in described drill bit (10).
7. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 5, is characterized in that:
Be provided with rear gas chamber (4) in inner casing (3), the large end of described piston (18) is positioned at rear gas chamber (4), and rear gas chamber (4) adopts double reduction, further reduces the impact stroke of piston.
8. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 2, it is characterized in that: between the large end of piston (18) of described piston (1) and rear joint (11), valve seat (12) is installed, be provided with the cylindrical valve seat small end (23) stretching into inner casing (3) in the inner chamber that described valve seat (12) sealing is arranged on outer shell (5).
9. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 8, is characterized in that:
Be axially arranged with piston center hole (20) in described piston (1), described piston center hole (20) coordinates with cylindrical valve seat small end (23).
10. a kind of high-frequency efficient energy-saving type down-the-hole air hammer according to claim 8, is characterized in that:
Described valve seat (12) is provided with the axial valve seat air flue (7) that can be communicated with rear joint air flue (6); The upper position near rear joint air flue (6) of valve seat (12) is provided with the non retern valve (14) for carrying out opening and closing between valve seat air flue (7) and rear joint air flue (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625895.8U CN205012917U (en) | 2015-08-19 | 2015-08-19 | Energy -efficient type downhole air hammer of high frequency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625895.8U CN205012917U (en) | 2015-08-19 | 2015-08-19 | Energy -efficient type downhole air hammer of high frequency |
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| Publication Number | Publication Date |
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| CN205012917U true CN205012917U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520625895.8U Active CN205012917U (en) | 2015-08-19 | 2015-08-19 | Energy -efficient type downhole air hammer of high frequency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065761A (en) * | 2016-07-29 | 2016-11-02 | 长沙天和钻具机械有限公司 | A kind of air inflow adaptive energy-saving impact device |
-
2015
- 2015-08-19 CN CN201520625895.8U patent/CN205012917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065761A (en) * | 2016-07-29 | 2016-11-02 | 长沙天和钻具机械有限公司 | A kind of air inflow adaptive energy-saving impact device |
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