CN106013303A - Oscillating type breaking hammer capable of switching drill rods - Google Patents
Oscillating type breaking hammer capable of switching drill rods Download PDFInfo
- Publication number
- CN106013303A CN106013303A CN201610469275.9A CN201610469275A CN106013303A CN 106013303 A CN106013303 A CN 106013303A CN 201610469275 A CN201610469275 A CN 201610469275A CN 106013303 A CN106013303 A CN 106013303A
- Authority
- CN
- China
- Prior art keywords
- drill steel
- spring
- actuator
- gear
- installing plate
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 112
- 239000010959 steel Substances 0.000 claims description 112
- 230000008093 supporting effect Effects 0.000 claims description 24
- CBVWMGCJNPPAAR-HJWRWDBZSA-N (nz)-n-(5-methylheptan-3-ylidene)hydroxylamine Chemical compound CCC(C)C\C(CC)=N/O CBVWMGCJNPPAAR-HJWRWDBZSA-N 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
Abstract
The invention belongs to the technical field of breaking hammers and particularly relates to an oscillating type breaking hammer capable of switching drill rods. The breaking hammer comprises an impact cavity, a hydraulic motor, a gear, a gear ring, an annular rail, a first performing mechanism, a second performing mechanism, performing mechanism installation holes and the like. One side of the annular rail is connected with the impact cavity. The other side of the annular rail is connected with a drill rod sleeve. The annular rail is provided with the two performing mechanism installation holes corresponding to the two performing mechanisms correspondingly. Through rotation of the gear, the position of the impact cavity corresponds to from one performing mechanism installation hole to the other performing mechanism installation hole, and thus switching of the drill rods is achieved. The breaking hammer is simple in structure, the different drill rods can be switched conveniently through the annular rail and the gear, and thus a good practical effect is achieved.
Description
Technical field
The invention belongs to quartering hammer technical field, particularly relate to the quartering hammer of the changeable drill steel of a kind of swing type.
Background technology
A drill steel installed only by quartering hammer at present, in order to adapt to various different operating mode, need to use the drill steel of different size, if it is for the excavation of various soft and neutral layering rock, ditching operation, then need to use manifold drill steel, if it is for the broken of particulate and neutral concrete and soft non-layered rock, then need to select crosshead drill steel etc., sometimes for using different types of drill steel in one-stop operation, if the method using frequently replacing drill steel can be very time-consuming, and can there is potential safety hazard.
The present invention designs the quartering hammer of the changeable drill steel of a kind of swing type and solves as above problem.
Summary of the invention
For solving drawbacks described above of the prior art, the present invention discloses the quartering hammer of the changeable drill steel of a kind of swing type, and it realizes by the following technical solutions.
A kind of quartering hammer of the changeable drill steel of swing type, it is characterized in that: it includes the support of impact cavity, motor, hydraulic motor, gear, ring gear, circular rails, rail support, the first actuator, the second actuator, rail groove, actuator installing hole, wherein hydraulic motor is supported by motor and is arranged on impact cavity outer wall, gear is arranged on hydraulic motor, impact cavity lower end is installed rail and is supported, rail supports two, two rails support identical, it is respectively symmetrically the both sides being arranged on impact cavity lower end, supporting for any one rail, rail groove is opened in its bottom；Having two actuator installing holes in circular rails, be separately installed with two actuators, be provided with ring gear inside circular rails, ring gear is close on circular rails inner edge surface, and gear and ring gear are meshed, and circular rails slides in two rail grooves.
The structure of above-mentioned two actuator is identical, for the first actuator, it includes the first revolute, the first drill steel, hydraulic stem, the second revolute, the second drill steel, drill steel set, reciprocal spring, the first spring installing plate, the second spring installing plate, reciprocating chamber, wherein drill steel set upper side is connected on the actuator installing hole of circular rails, drill steel puts and has two reciprocating chambers symmetrically, and two the first spring installing plates are symmetrically mounted at outside drill steel set；Two the second spring installing plates are symmetrically mounted on the first drill steel, and the first drill steel top is arranged on drill steel set inside and two the second spring installing plates stretch out respectively from two reciprocating chambers, and the first drill steel bottom is connected with second drill steel one end by revolute；Hydraulic stem one end is arranged on the first drill steel by the first revolute, and the other end is arranged on the second drill steel by the second revolute；Above-mentioned reciprocal spring is arranged between the first spring installing plate and the second spring installing plate.
In the present invention, hydraulic motor can make pinion rotation, motor supports to the distance of rail support should be equal to the radius of circular rails, thus gear and ring gear are meshed without separately during pinion rotation, circular rails is moved by pinion rotation, and when pinion rotation, circular rails is slided in two rail grooves, the switching so that the first actuator and the second actuator swing.When the position of gear is in ring gear away from one end of impact cavity, corresponding first actuator of impact cavity, to work as pinion rotation, make circular rails move, the position of gear is in ring gear when one end of impact cavity, impact cavity correspondence the second actuator.Can switch between two actuators easily with the help of gear and rail support.During second drill steel moves up and down in drill steel overlaps, the second spring installing plate moves reciprocatingly in reciprocating chamber, and reciprocal spring does stretching motion.Reciprocal spring supports the second drill steel return, so that drill steel can hit object continuously, can play cushioning effect by reciprocal spring simultaneously.
As the further improvement of this technology, it also includes the first spring supporting, the second spring supporting, and the first spring supporting is arranged on the downside of the first spring installing plate, and the second spring supporting is arranged on the upside of the second spring installing plate；Reciprocal spring is arranged between the first spring installing plate and the second spring installing plate by the first spring supporting and the second spring supporting.Two spring supportings on the same line, facilitate spring to install.
As the further improvement of this technology, above-mentioned hydraulic stem is scalable, and when drill steel is in use state, hydraulic stem stretches, and the angle constituted between the first drill steel and the second drill steel is 180 degree；When drill steel is in idle state, hydraulic stem shrinks, and the second drill steel rotates, and the angle constituted between the first drill steel and the second drill steel is less than 180 degree.The drill steel idle during hitting downwards of the drill steel being in using is the most touched to be arrived, thus ensure that idle drill steel does not affect operation.
As the further improvement of this technology, two actuator installing holes in above-mentioned circular rails are identical, and two drill steels sets that two actuator installing holes are connected are the most identical.Thus ensure that when drill steel switches, impact cavity and drill steel set can mate completely.
As the further improvement of this technology, the knocking gear of above-mentioned drill steel can be the conventional methods such as hydraulic-driven, hydraulic pressure and nitrogen combination drive.
Relative to traditional quartering hammer technology, in the present invention, circular rails side is connected with impact cavity, and opposite side is connected to drill steel and puts, and circular rails has two actuator installing holes, the most corresponding two actuators；The position that can be made impact cavity by pinion rotation corresponds to another actuator installing hole from an actuator installing hole, thus realizes the switching of drill steel；Present configuration is simple, easy to operate, utilizes circular rails and gear can switch to different drill steels rapidly, has preferable practical function.
Accompanying drawing explanation
Fig. 1 is global facility distribution schematic diagram.
Fig. 2 is drill steel handoff procedure schematic diagram.
Fig. 3 is hydraulic motor, impact cavity scheme of installation.
Fig. 4 is rail support-side view.
Fig. 5 is ring gear, actuator scheme of installation.
Fig. 6 is ring gear structural representation.
Fig. 7 is drill steel nested structure perspective view.
Fig. 8 is carried out mechanism structure schematic diagram.
Fig. 9 is reciprocal spring scheme of installation.
Label title in figure: 1, impact cavity, 2, motor support, 3, hydraulic motor, 4, gear, 5, ring gear, 6, circular rails, 7, rail supports, and 8, drill steel set, 9, reciprocating chamber, 10, the first revolute, 11, the first drill steel, 12, hydraulic stem, the 13, second revolute, 14, the second drill steel, 15, the first actuator, the 16, second actuator, 17, rail groove, 18, actuator installing hole, 19, the first spring installing plate, the 20, second spring installing plate, the 21, first spring supporting, 22, reciprocal spring, the 23, second spring supporting.
Detailed description of the invention
Such as Fig. 1, shown in 2, it includes impact cavity 1, motor supports 2, hydraulic motor 3, gear 4, ring gear 5, circular rails 6, rail supports 7, first actuator 15, second actuator 16, rail groove 17, actuator installing hole 18, the most as shown in Figure 3, hydraulic motor 3 supports 2 by motor and is arranged on impact cavity 1 outer wall, gear 4 is arranged on hydraulic motor 3, impact cavity 1 lower end is installed rail and is supported 7, rail supports 7 two, it is identical that two rails support 7, it is respectively symmetrically the both sides being arranged on impact cavity 1 lower end, as shown in Figure 4, 7 are supported for any one rail, rail groove 17 is opened in its bottom；As shown in Figure 5,6, circular rails 6 has two actuator installing holes 18, be separately installed with two actuators, ring gear 5 is installed inside circular rails 6, ring gear 5 is close on circular rails 6 inner edge surface, and gear 4 and ring gear 5 are meshed, and circular rails 6 slides in two rail grooves 17.
The structure stating two actuators as shown in Figure 8,9 is identical, for the first actuator 15, it includes first revolute the 10, first drill steel 11, hydraulic stem the 12, second revolute the 13, second drill steel 14, drill steel set 8, reciprocal spring the 22, first spring installing plate the 19, second spring installing plate 20, reciprocating chamber 9, the most as shown in Figure 7, drill steel overlaps 8 upper ends and is connected on the actuator installing hole 18 of circular rails 6, having two reciprocating chambers 9 on drill steel set 8 symmetrically, two the first spring installing plates 19 are symmetrically mounted at outside drill steel set 8；Two the second spring installing plates 20 are symmetrically mounted on the first drill steel 11, first drill steel 11 top is arranged on drill steel set 8 inside and two the second spring installing plates 20 stretch out respectively from two reciprocating chambers 9, and the first drill steel 11 bottom is connected with second drill steel 14 one end by revolute；Hydraulic stem 12 one end is arranged on the first drill steel 11 by the first revolute 10, and the other end is arranged on the second drill steel 14 by the second revolute 13；Above-mentioned reciprocal spring 22 is arranged between the first spring installing plate 19 and the second spring installing plate 20.
In the present invention, hydraulic motor 3 can make gear 4 rotate, motor supports 2 distances arriving rail support 7 should be equal to the radius of circular rails 6, thus gear 4 rotation process middle gear 4 and ring gear 5 are meshed without separately, circular rails 6 is rotated by gear 4 and moves, and when gear 4 rotates, circular rails 6 is slided in two rail grooves 17, the switching so that the first actuator 15 and the second actuator 16 swing.When the position of gear 4 is in ring gear 5 away from one end of impact cavity 1, corresponding first actuator 15 of impact cavity 1, when gear 4 rotates, make circular rails 6 move, the position of gear 4 is in ring gear 5 when one end of impact cavity 1, corresponding second actuator 16 of impact cavity 1.Can switch between two actuators easily with the help of gear 4 and rail support 7.During second drill steel 14 moves up and down in drill steel set 8, the second spring installing plate 20 moves reciprocatingly in reciprocating chamber 9, and reciprocal spring 22 does stretching motion.Reciprocal spring 22 helps the second drill steel 14 return, so that drill steel can hit object continuously, can play cushioning effect by reciprocal spring 22 simultaneously.Actuating unit in the present invention is identical with the actuating unit of quartering hammer in routine techniques, when the first actuator 15 works, second actuator 16 does not works, the first drill steel 11 in first actuator 15 is moved downward by the effect of power, drive the second drill steel 14 to move downward impacted object simultaneously, the pulling force effect being then subjected to spring moves upward, and is so repeated, and makes the continuous impacting object of drill steel.
As it is shown in figure 9, it also includes first spring supporting the 21, second spring supporting 23, the first spring supporting 21 is arranged on the downside of the first spring installing plate 19, and the second spring supporting 23 is arranged on the upside of the second spring installing plate 20；Reciprocal spring 22 is arranged between the first spring installing plate 19 and the second spring installing plate 20 by the first spring supporting 21 and the second spring supporting 23.Two spring supportings on the same line, facilitate spring to install.
As in figure 2 it is shown, above-mentioned hydraulic stem 12 is scalable, when drill steel is in use state, hydraulic stem 12 stretches, and the angle constituted between the first drill steel 11 and the second drill steel 14 is 180 degree；When drill steel is in idle state, hydraulic stem 12 shrinks, and the second drill steel 14 rotates, and the angle constituted between the first drill steel 11 and the second drill steel 14 is less than 180 degree.The drill steel idle during hitting downwards of the drill steel being in using is the most touched to be arrived, thus ensure that idle drill steel does not affect operation.
Two actuator installing holes 18 in above-mentioned circular rails 6 are identical, and two drill steels sets 8 that two actuator installing holes 18 are connected are the most identical.Thus ensure that when drill steel switches, impact cavity 1 and drill steel set 8 can mate completely.
The knocking gear of above-mentioned drill steel can be the conventional methods such as hydraulic-driven, hydraulic pressure and nitrogen combination drive.
In sum, in the present invention, circular rails 6 side is connected with impact cavity 1, and opposite side is connected on drill steel set 8, and circular rails 6 has two actuator installing holes 18, the most corresponding two actuators；Being rotated by gear 4 to make the position of impact cavity 1 correspond to another actuator installing hole 18 from an actuator installing hole 18, thus realizes the switching of drill steel；Present configuration is simple, easy to operate, utilizes circular rails 6 and gear 4 can switch to different drill steels rapidly, has preferable practical function.
Claims (4)
1. the quartering hammer of the changeable drill steel of swing type, it is characterized in that: it includes the support of impact cavity, motor, hydraulic motor, gear, ring gear, circular rails, rail support, the first actuator, the second actuator, rail groove, actuator installing hole, wherein hydraulic motor is supported by motor and is arranged on impact cavity outer wall, gear is arranged on hydraulic motor, impact cavity lower end is installed rail and is supported, rail supports two, two rails support identical, it is respectively symmetrically the both sides being arranged on impact cavity lower end, supporting for any one rail, rail groove is opened in its bottom；Having two actuator installing holes in circular rails, be separately installed with two actuators, be provided with ring gear inside circular rails, ring gear is close on circular rails inner edge surface, and gear and ring gear are meshed, and circular rails slides in two rail grooves；
The structure of said two actuator is identical, for the first actuator, it includes the first revolute, the first drill steel, hydraulic stem, the second revolute, the second drill steel, drill steel set, reciprocal spring, the first spring installing plate, the second spring installing plate, reciprocating chamber, wherein drill steel set upper side is connected on the actuator installing hole of circular rails, drill steel puts and has two reciprocating chambers symmetrically, and two the first spring installing plates are symmetrically mounted at outside drill steel set；Two the second spring installing plates are symmetrically mounted on the first drill steel, and the first drill steel top is arranged on drill steel set inside and two the second spring installing plates stretch out respectively from two reciprocating chambers, and the first drill steel bottom is connected with second drill steel one end by revolute；Hydraulic stem one end is arranged on the first drill steel by the first revolute, and the other end is arranged on the second drill steel by the second revolute；Described reciprocal spring is arranged between the first spring installing plate and the second spring installing plate.
The quartering hammer of the changeable drill steel of a kind of swing type the most according to claim 1, it is characterized in that: it also includes the first spring supporting, the second spring supporting, first spring supporting is arranged on the downside of the first spring installing plate, and the second spring supporting is arranged on the upside of the second spring installing plate；Reciprocal spring is arranged between the first spring installing plate and the second spring installing plate by the first spring supporting and the second spring supporting.
The quartering hammer of the changeable drill steel of a kind of swing type the most according to claim 1, it is characterised in that: described hydraulic stem is scalable, and when drill steel is in use state, hydraulic stem stretches, and the angle constituted between the first drill steel and the second drill steel is 180 degree；When drill steel is in idle state, hydraulic stem shrinks, and the second drill steel rotates, and the angle constituted between the first drill steel and the second drill steel is less than 180 degree.
The quartering hammer of the changeable drill steel of a kind of swing type the most according to claim 1, it is characterised in that: two actuator installing holes in described circular rails are identical, and two drill steels sets that two actuator installing holes are connected are identical.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469275.9A CN106013303B (en) | 2016-06-25 | 2016-06-25 | A kind of quartering hammer of the changeable drill steel of swing type |
| CN201710858664.5A CN107574854A (en) | 2016-06-25 | 2016-06-25 | A kind of quartering hammer of changeable drill steel |
| CN201710858559.1A CN107476365A (en) | 2016-06-25 | 2016-06-25 | A kind of changeable quartering hammer of drill steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469275.9A CN106013303B (en) | 2016-06-25 | 2016-06-25 | A kind of quartering hammer of the changeable drill steel of swing type |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710858664.5A Division CN107574854A (en) | 2016-06-25 | 2016-06-25 | A kind of quartering hammer of changeable drill steel |
| CN201710858559.1A Division CN107476365A (en) | 2016-06-25 | 2016-06-25 | A kind of changeable quartering hammer of drill steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106013303A true CN106013303A (en) | 2016-10-12 |
| CN106013303B CN106013303B (en) | 2018-01-16 |
Family
ID=57083424
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710858559.1A Withdrawn CN107476365A (en) | 2016-06-25 | 2016-06-25 | A kind of changeable quartering hammer of drill steel |
| CN201710858664.5A Withdrawn CN107574854A (en) | 2016-06-25 | 2016-06-25 | A kind of quartering hammer of changeable drill steel |
| CN201610469275.9A Active CN106013303B (en) | 2016-06-25 | 2016-06-25 | A kind of quartering hammer of the changeable drill steel of swing type |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710858559.1A Withdrawn CN107476365A (en) | 2016-06-25 | 2016-06-25 | A kind of changeable quartering hammer of drill steel |
| CN201710858664.5A Withdrawn CN107574854A (en) | 2016-06-25 | 2016-06-25 | A kind of quartering hammer of changeable drill steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN107476365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024738A (en) * | 2018-07-20 | 2018-12-18 | 东莞市联洲知识产权运营管理有限公司 | A kind of drill steel storage device for crushing hammar drill rod displacement |
| CN109024734A (en) * | 2018-07-20 | 2018-12-18 | 东莞市联洲知识产权运营管理有限公司 | A kind of storage device of crushing hammar drill rod rotation type displacement |
| CN110984870A (en) * | 2019-12-30 | 2020-04-10 | 东莞市至简机电工程技术有限公司 | Hydraulic breaking hammer with switchable drill rod |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024735A (en) * | 2018-07-20 | 2018-12-18 | 东莞市联洲知识产权运营管理有限公司 | A kind of quartering hammer with the spare drill steel being switched fast |
| CN109024732B (en) * | 2018-07-20 | 2020-11-06 | 姚杭 | Breaking hammer capable of switching two drill rods in swinging mode |
| CN109024733B (en) * | 2018-07-20 | 2021-05-11 | 台州知管通科技有限公司 | Breaking hammer for rapidly switching two drill rods for standby work |
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| JP4916872B2 (en) * | 2006-12-26 | 2012-04-18 | 株式会社マキタ | Impact tool |
| CN203961332U (en) * | 2014-05-06 | 2014-11-26 | 兰州理工大学 | For the hydraulic shear of engineering machinery arm and the integrating device of quartering hammer |
| CN204001004U (en) * | 2014-08-09 | 2014-12-10 | 襄阳忠良工程机械有限责任公司 | A kind of bucket, hammer fast replacing device |
| CN205012381U (en) * | 2015-09-16 | 2016-02-03 | 鞍钢集团矿业公司 | Power shovel and tup exchange dismounting device |
| CN205164788U (en) * | 2015-12-09 | 2016-04-20 | 荣昌精密机械(苏州)有限公司 | Drill rod mechanism of quartering hammer |
| CN106013304A (en) * | 2016-06-25 | 2016-10-12 | 苏州高精特专信息科技有限公司 | Oscillating type breaking hammer |
| CN205804451U (en) * | 2016-06-25 | 2016-12-14 | 马靖恬 | A kind of quartering hammer |
-
2016
- 2016-06-25 CN CN201710858559.1A patent/CN107476365A/en not_active Withdrawn
- 2016-06-25 CN CN201710858664.5A patent/CN107574854A/en not_active Withdrawn
- 2016-06-25 CN CN201610469275.9A patent/CN106013303B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916872B1 (en) * | 1970-05-12 | 1974-04-25 | ||
| JPS4916872A (en) * | 1972-04-21 | 1974-02-14 | ||
| JP3986803B2 (en) * | 2001-11-20 | 2007-10-03 | 古河機械金属株式会社 | Stroke adjustment mechanism of hydraulic striking device |
| JP4916872B2 (en) * | 2006-12-26 | 2012-04-18 | 株式会社マキタ | Impact tool |
| CN203961332U (en) * | 2014-05-06 | 2014-11-26 | 兰州理工大学 | For the hydraulic shear of engineering machinery arm and the integrating device of quartering hammer |
| CN204001004U (en) * | 2014-08-09 | 2014-12-10 | 襄阳忠良工程机械有限责任公司 | A kind of bucket, hammer fast replacing device |
| CN205012381U (en) * | 2015-09-16 | 2016-02-03 | 鞍钢集团矿业公司 | Power shovel and tup exchange dismounting device |
| CN205164788U (en) * | 2015-12-09 | 2016-04-20 | 荣昌精密机械(苏州)有限公司 | Drill rod mechanism of quartering hammer |
| CN106013304A (en) * | 2016-06-25 | 2016-10-12 | 苏州高精特专信息科技有限公司 | Oscillating type breaking hammer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024738A (en) * | 2018-07-20 | 2018-12-18 | 东莞市联洲知识产权运营管理有限公司 | A kind of drill steel storage device for crushing hammar drill rod displacement |
| CN109024734A (en) * | 2018-07-20 | 2018-12-18 | 东莞市联洲知识产权运营管理有限公司 | A kind of storage device of crushing hammar drill rod rotation type displacement |
| CN109024734B (en) * | 2018-07-20 | 2020-12-11 | 南京溧水高新创业投资管理有限公司 | Storage device of quartering hammer drill rod rotation formula replacement |
| CN109024738B (en) * | 2018-07-20 | 2020-12-29 | 安徽省华腾农业科技有限公司经开区分公司 | Drill rod storage device for replacement of drill rod of breaking hammer |
| CN110984870A (en) * | 2019-12-30 | 2020-04-10 | 东莞市至简机电工程技术有限公司 | Hydraulic breaking hammer with switchable drill rod |
| CN110984870B (en) * | 2019-12-30 | 2021-11-12 | 石门县八方石膏矿业有限公司 | Hydraulic breaking hammer with switchable drill rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107476365A (en) | 2017-12-15 |
| CN106013303B (en) | 2018-01-16 |
| CN107574854A (en) | 2018-01-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Qidi Inventor before: Shen Yujie |
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Effective date of registration: 20190409 Address after: 213000 Longcheng Avenue, Zhonglou District, Changzhou City, Jiangsu Province, 1999 Patentee after: Changzhou Ma Ma Construction Machinery Co., Ltd. Address before: Room 501-21, Fifth Floor, Longhua Xinghu Garden Complex Building, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: Shaoxing wisdom Technology Co., Ltd. |
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Effective date of registration: 20210831 Address after: 211300 building 15 and 16, No. 4, Cangxi Road, economic development zone, Gaochun District, Nanjing, Jiangsu Province Patentee after: Jiangsu Jiurun Machinery Industry Technology Co.,Ltd. Address before: 213000 Longcheng Avenue, Zhonglou District, Changzhou City, Jiangsu Province, 1999 Patentee before: CHANGZHOU JAOMER ENGINEERING MACHINERY Co.,Ltd. |