CN201412153Y - Rock drill support with buffer spring - Google Patents
Rock drill support with buffer spring Download PDFInfo
- Publication number
- CN201412153Y CN201412153Y CN2009201232212U CN200920123221U CN201412153Y CN 201412153 Y CN201412153 Y CN 201412153Y CN 2009201232212 U CN2009201232212 U CN 2009201232212U CN 200920123221 U CN200920123221 U CN 200920123221U CN 201412153 Y CN201412153 Y CN 201412153Y
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- CN
- China
- Prior art keywords
- rock drill
- linked set
- buffer spring
- spring
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a rock drill, in particular to a rock drill support with a buffer spring for protecting chains from damaging. The rock drill comprises a rock drill support, wherein the rock drill support is connected with a rock drill thruster, the inside of the rock drill support is provided with a spring buffer device which comprises a front linkage device, the buffer spring and a rear linkage device, the front linkage device is connected with a front support of the rock drill support, the rear linkage device is connected with a rear support of the rock drill support, and the buffer spring is arranged between the front linkage device and the rear linkage device. The rock drill support has the advantages that first, firstly, when a thrust motor is started, the start impact ofchains is released for leading the rock drill to stably start, secondly, when a thrust beam is overloaded to move, thrust chains can be protected from overloading, thirdly, the rock drill support reduces the high-frequency vibration and noises produced when the rock drill works.
Description
Technical field
The utility model relates to a kind of hammer drill, particularly a kind of drill bar that buffer spring is housed that is used to protect the chain damage.
Background technology
Buffer had mechanically obtained using widely in mine engineering in recent years, wherein in high efficiency all-hydraulic driving drill carriage, be converted to present " soft-hard " link from original " firmly " link, reduce the vibration of car load, improve the drill carriage total quality, and obtained good effect.Under the background that the design of vitals overload protection is approved by increasing design engineer, buffer caused the attention of the relevant companies in various countries, and organizational strength is developed competitively in the superiority in this field.
The chain type propeller is a kind of traditional propeller, uses more on some long stroke propellers.Chain drive is a rigidity, and its vitals chain under adverse circumstances such as vibration and silt, is easy to damage.So developing a kind of buffer that is used to protect chain to damage is very important.
Summary of the invention
The purpose of this utility model is exactly the weak point in the background technology; provide a kind of when alleviating in the chain type forward beam hydraulic motor and starting to the temporary impact of chain with when drill bar blocks, chain is played the drill bar that buffer spring is housed of protective effect.
For achieving the above object, the utility model is equipped with the drill bar of buffer spring, comprise drill bar, drill bar is connected with drill feed, be provided with spring bumper in the drill bar, spring bumper comprises preceding linked set, buffer spring and back linked set, and preceding linked set is connected with the fore-stock of drill bar, back linked set is connected with the after-poppet of drill bar, is provided with buffer spring between preceding linked set and the back linked set.
For of the present utility model a kind of preferred, preceding linked set rear end and back linked set front end are connected with spring base I and spring base II respectively, buffer spring is set on spring base I and the spring base II, and the buffer spring two ends are connected with spring base II with spring base I respectively.
For of the present utility model a kind of preferred, be respectively equipped with through hole on the fore-stock of described drill bar and the after-poppet, preceding linked set is connected with through hole on the after-poppet with fore-stock respectively with the back linked set.
For of the present utility model a kind of preferred, spring base I is connected with the back linked set with preceding linked set rear end by the overload protection pin respectively with spring base II.
For of the present utility model a kind of preferred, preceding linked set front end is connected with chain respectively with linked set rear end, back.
The utility model is compared with background technology, and having one is propulsion motor when starting, and has alleviated the startup impact force of chain, and hammer drill is started steadily; The 2nd, during the motion of forward beam overload, play overload protection to advancing chain; The 3rd, dither when reducing hammer drill work and the noise that is produced thereof.
The utility model is elaborated with reference to accompanying drawing below in conjunction with embodiment.
Description of drawings
Fig. 1 is the structural representation that the drill bar of buffer spring is housed.
The specific embodiment
Embodiment 1: with reference to Fig. 1.The drill bar of buffer spring is housed, comprise drill bar, drill bar is connected with drill feed, be provided with spring bumper in the drill bar, spring bumper comprises preceding linked set 1, buffer spring 6 and back linked set 9, preceding linked set 1 is connected with the fore-stock 2 of drill bar, and back linked set 9 is connected with the after-poppet 8 of drill bar, is provided with buffer spring 6 between preceding linked set 1 and the back linked set 9.Preceding linked set 1 rear end and back linked set 9 front ends are connected with spring base I 5 and spring base II 7 respectively, and buffer spring 6 is set on spring base I 5 and the spring base II 7, and buffer spring 6 two ends are connected with spring base II 7 with spring base I 5 respectively.Be respectively equipped with through hole 3 on the fore-stock 2 of described drill bar and the after-poppet 8, preceding linked set 1 is connected with through hole 3 on the after-poppet 8 with fore-stock 2 respectively with back linked set 9.Spring base I 5 is connected with back linked set 9 with preceding linked set 1 rear end by overload protection pin 4 respectively with spring base II 7.Preceding linked set 1 front end is connected with chain respectively with linked set rear end, back 9.
Embodiment 2: with reference to Fig. 1.During motor starting, preceding linked set 1 is received the tensile force f 1 of front end chain and the reaction force F1 ' of buffer spring 6.At this moment, buffer spring 6 is subjected to the tensile force f 2 of rearmounted chain, the frictional force f1 of drill bar and the inertia force f2 of hammer drill, and these force directions are opposite.Spring begins elongation under the effect of bidirectional force.Suppose that elongation is x, the elastic coefficient K then has F1>F1 '=Kx, and the spring elongation absorbs impact stress.When F1=F1 '=F2+f1+f2, drill bar begins action.When drill bar was blocked by thing, chain can be subjected to the overload tensile force f g of propulsion motor, and this overload power is also with the equally slow increase of above-mentioned principle.Suppose that it is Fx that chain is broken required power, the diameter of overload protection pin is d, and shear stress allowable is [τ], then:
What need understand is: though the foregoing description is to the utility model detailed explanation of contrasting; but these explanations; just to simple declaration of the present utility model; rather than to restriction of the present utility model; any utility model that does not exceed in the utility model connotation is created, and all falls in the protection domain of the present utility model.
Claims (5)
1, a kind of drill bar that buffer spring is housed, comprise drill bar, drill bar is connected with drill feed, it is characterized in that: be provided with spring bumper in the drill bar, spring bumper comprises preceding linked set (1), buffer spring (6) and back linked set (9), preceding linked set (1) is connected with the fore-stock (2) of drill bar, back linked set (9) is connected with the after-poppet (8) of drill bar, is provided with buffer spring (6) between preceding linked set (1) and the back linked set (9).
2, the drill bar that buffer spring is housed according to claim 1, it is characterized in that: preceding linked set (1) rear end and back linked set (9) front end are connected with spring base I (5) and spring base II (7) respectively, buffer spring (6) is set on spring base I (5) and the spring base II (7), and buffer spring (6) two ends are connected with spring base II (7) with spring base I (5) respectively.
3, the drill bar that buffer spring is housed according to claim 1, it is characterized in that: be respectively equipped with through hole (3) on fore-stock of described drill bar (2) and the after-poppet (8), preceding linked set (1) is gone up through hole (3) with fore-stock (2) and after-poppet (8) respectively with back linked set (9) and is connected.
4, the drill bar that buffer spring is housed according to claim 2 is characterized in that: spring base I (5) is connected with back linked set (9) with preceding linked set (1) rear end by overload protection pin (4) respectively with spring base II (7).
5, the drill bar that buffer spring is housed according to claim 1 is characterized in that: preceding linked set (1) front end is connected with chain respectively with linked set rear end, back (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201232212U CN201412153Y (en) | 2009-06-25 | 2009-06-25 | Rock drill support with buffer spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201232212U CN201412153Y (en) | 2009-06-25 | 2009-06-25 | Rock drill support with buffer spring |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201412153Y true CN201412153Y (en) | 2010-02-24 |
Family
ID=41714039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009201232212U Expired - Fee Related CN201412153Y (en) | 2009-06-25 | 2009-06-25 | Rock drill support with buffer spring |
Country Status (1)
Country | Link |
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CN (1) | CN201412153Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104481415A (en) * | 2014-11-11 | 2015-04-01 | 山东科技大学 | Light portable rock drill shock absorption support |
CN104790868A (en) * | 2015-02-13 | 2015-07-22 | 湖南文理学院 | Dual-buffer rock drill anti-collision mechanism for hydraulic drill carriage |
CN109267942A (en) * | 2018-10-10 | 2019-01-25 | 中船重工中南装备有限责任公司 | A kind of repeat system |
-
2009
- 2009-06-25 CN CN2009201232212U patent/CN201412153Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104481415A (en) * | 2014-11-11 | 2015-04-01 | 山东科技大学 | Light portable rock drill shock absorption support |
CN104481415B (en) * | 2014-11-11 | 2017-11-03 | 山东科技大学 | A kind of light-weight handheld rock drill shock bracket |
CN104790868A (en) * | 2015-02-13 | 2015-07-22 | 湖南文理学院 | Dual-buffer rock drill anti-collision mechanism for hydraulic drill carriage |
CN109267942A (en) * | 2018-10-10 | 2019-01-25 | 中船重工中南装备有限责任公司 | A kind of repeat system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20160625 |
|
CF01 | Termination of patent right due to non-payment of annual fee |