CN106640104B - A kind of adjustable falling-proof type hobboing cutter locking device of height - Google Patents
A kind of adjustable falling-proof type hobboing cutter locking device of height Download PDFInfo
- Publication number
- CN106640104B CN106640104B CN201710046576.5A CN201710046576A CN106640104B CN 106640104 B CN106640104 B CN 106640104B CN 201710046576 A CN201710046576 A CN 201710046576A CN 106640104 B CN106640104 B CN 106640104B
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- hobboing cutter
- groove
- positioning
- cushion block
- supporting block
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- 238000000034 method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Details Of Cutting Devices (AREA)
Abstract
The present invention relates to a kind of adjustable falling-proof type hobboing cutter locking device of height, including tool apron, supporting block, compact heap, hobboing cutter, cushion block, supporting block is located at hobboing cutter two sides, is fixed on tool apron by supporting screw, and supporting block is equipped with groove, and the cutter shaft of hobboing cutter is in the grooves；Compact heap is fixed in groove by housing screw；First through hole is provided on the bottom wall and tool apron corresponding position of supporting block, cushion block passes through first through hole；The cutter shaft of hobboing cutter includes the first positioning surface, the second positioning surface and third positioning surface, and the first positioning surface contacts positioning with compact heap, and the second positioning surface contacts positioning with the bottom wall of groove, and third positioning surface contacts positioning with cushion block.The configuration of the present invention is simple, accurate positioning is fixed reliable, replaces convenient for hobboing cutter, can easily adjust hobboing cutter height, reduces the generation of hobboing cutter dropping situations.
Description
Technical field
The present invention relates to shield machine technical field more particularly to a kind of adjustable falling-proof type hobboing cutter locking devices of height.
Background technique
Shield machine relies primarily on installation when tunneling boring rock stratum, the soft or hard higher stratum of uneven and sandy gravel content are tunneled
Hobboing cutter on cutterhead roll being crushed to excavation face reaches excavation purpose.During hobboing cutter destroys excavation face, if
Situations such as abrasion of hobboing cutter cutter ring is more than permissible value or cutter ring eccentric wear, fracture occurs, it is necessary to replace hobboing cutter；Simultaneously because hobboing cutter
Biggish alternating load is born during the work time, and vibration is big, be easy to cause the damage of hobboing cutter and causes because connector loosens
The phenomenon that hobboing cutter falls off.In addition, needing to adjust the height of hobboing cutter under the conditions of certain to increase the digging diameter of deep bid.Therefore it develops
A kind of fixation is simple and reliable, height is adjustable, and falling-proof type hobboing cutter locking device is a project urgently to be solved.
Summary of the invention
To solve existing technical problem, the present invention provides a kind of adjustable falling-proof type hobboing cutter locking devices of height.
Particular content of the invention is as follows: a kind of adjustable falling-proof type hobboing cutter locking device of height, including tool apron, support
Block, compact heap, hobboing cutter, cushion block, the supporting block are located at hobboing cutter two sides, are fixed on tool apron by supporting screw, supporting block is set
Fluted, the cutter shaft of hobboing cutter is in the grooves；The compact heap is fixed in groove by housing screw；In the bottom wall of supporting block
Be provided with first through hole on tool apron corresponding position, cushion block passes through first through hole；The cutter shaft of the hobboing cutter includes the first positioning surface, the
Two positioning surfaces and third positioning surface, first positioning surface contact positioning with compact heap, and the bottom wall of the second positioning surface and groove connects
Touching positioning, third positioning surface contact positioning with cushion block.
Further, the tool apron center is equipped with the aperture for placing hobboing cutter blade, and the two sides up and down of aperture, which are equipped with, to be used
In the mounting groove of installation supporting block.Guarantee that hobboing cutter can successfully be worked, installs and be removed.Two sides up and down herein refer to
The vertical two sides of the cutter shaft of hobboing cutter.The settable section of aperture is rectangle, and quadrangle is set as fillet.
Further, the supporting block top is higher than tool apron top.Due to being equipped with groove, other important portions in supporting block
Part such as compact heap, cushion block is all disposed in groove, therefore the space that groove needs is larger, and supporting block top carries cushion block
Pressure, it is therefore desirable to there is certain thickness, the setting of supporting block top is higher than tool apron, the thickness on supporting block top can be made to increase,
The fastness of enhancement device.
Further, it is provided with the second through-hole on groove bottom wall and tool apron corresponding position, housing screw passes through the second through-hole, pressure
On one side with the first positioning face contact, another side contacts tight block with recess sidewall.For compact heap, needs to compress cutter shaft, make cutter shaft
It is capable of fixing in groove, it is therefore desirable to be convenient for the positioning of cutter shaft with the first positioning face contact on one side, another side connects with groove
Touching guarantees to compress effect, can be by the opposite face of compact heap and the face of the first positioning face contact in order to guarantee compact heap uniform force
It is contacted with recess sidewall.
Further, the supporting block top is provided with cushion block screwing through hole, the cushion block top right above first through hole
It is connected with the roof of groove, cushion block is connected to supporting block top by cushion block screw.Cushion block and third position face contact, need to lead to
Cushion block screw is crossed it is fixed, cushion block screw one through to supporting block top upper surface, convenient for checking that cushion block screw is solid
The case where determining cushion block guarantees closely to connect between cushion block and supporting block.
Further, the both sides of first through hole are aligned with the third positioning surface and recess sidewall of cutter shaft respectively, first through hole
Diameter be not less than orthographic projection of the cutter shaft on groove bottom wall length.First through hole is designed at the edge of groove, can make to pad
One side of block connects with the side wall of groove, enable installation when cushion block stress pass to supporting block, if cushion block not with recess sidewall
Contact, then cushion block stress is excessive, is easily damaged, and safety accident occurs；The diameter of first through hole is not less than cutter shaft in groove bottom wall
On the length of orthographic projection guarantee that cutter shaft can be passed through from first through hole, convenient for the replacement and installation of hobboing cutter, first through hole
Diameter also should not be too large, and it is excessive otherwise to will cause cushion block, waste material, and the diameter of unreasonable structural design, first through hole can be set
It sets long less than the diameter of cutter shaft.
Further, the bottom surface of first positioning surface and groove forms inclination angle, and tilt angle is 45-90 degree.Herein
Tilt angle refer to lesser angle in inclination angle that the bottom surface of the first positioning surface and groove is formed.First positioning surface is designed to incline
Oblique positioning surface just forms self-locking structure, connects in the second positioning surface and the groove bottom wall of cutter shaft between such cutter shaft and compact heap
In the case that touching positioning, third positioning surface contact positioning with cushion block, it is ensured that the position of hobboing cutter is completely fixed, and is reached reliably
Lock the purpose of hobboing cutter.
The application method of hobboing cutter locking device of the invention is as follows, and supporting block is first mounted on tool apron two by supporting screw
Side, in a groove by compact heap installation, housing screw is not tightened, and hobboing cutter is installed in groove, makes the second positioning surface and groove
Bottom wall contact, installs cushion block, and is fixed in supporting block with cushion block screw, guarantees between third positioning surface and cushion block, is first fixed
It is contacted between plane and compact heap well, then tightens housing screw.Since three positioning surfaces of cutter shaft are all positioned and fixed, because
This cutter shaft can guarantee fixed effect in the groove of supporting block, in shield machine tunneling process, to adjust the height of hobboing cutter,
Only need replacing supporting block, the distance between the groove of supporting block and bottom wall are adjusted according to the height that hobboing cutter needs, Ji Keshi
The adjusting of existing hobboing cutter height.In shield machine tunneling process, if the abrasion of hobboing cutter cutter ring is more than that its permissible value or cutter ring are sent out
The case where raw eccentric wear, fracture, when needing replacing hobboing cutter, maintenance personnel can unclamp housing screw, unclamp again and take from the cutterhead back side
Lower cushion block screw, then cushion block is removed, the cutter shaft of hobboing cutter is taken out from first through hole, then new hobboing cutter is changed, with cushion block spiral shell
Nail fixes cushion block, then tightens housing screw, and the replacement of hobboing cutter can be completed.Due to the special construction of this locking mode, as long as
Supporting block and cushion block are not fallen off, even if compact heap loose or dislocation, hobboing cutter will not fall off from tool apron.
Beneficial effects of the present invention: structure is simple, accurate positioning, fixed reliable, replaces, can easily adjust convenient for hobboing cutter
Whole hobboing cutter height reduces the generation of hobboing cutter dropping situations.
Detailed description of the invention
A specific embodiment of the invention is furtherd elucidate with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the adjustable falling-proof type hobboing cutter locking device of height of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the bottom view of Fig. 1.
Specific embodiment
In conjunction with Fig. 1-Fig. 3, a specific embodiment of the invention is as follows: a kind of adjustable falling-proof type hobboing cutter locking dress of height
It sets, including tool apron 1, supporting block 3, compact heap 4, hobboing cutter 6, cushion block 7, supporting block 3 are located at 6 two sides of hobboing cutter, solid by supporting screw 2
It is scheduled on tool apron 1, supporting block 3 is equipped with groove 30, and the cutter shaft 60 of hobboing cutter 6 is located in groove 30；Compact heap 4 passes through housing screw 5
It is fixed in groove 30；First through hole 31 is provided on 1 corresponding position of bottom wall and tool apron of supporting block 3, it is logical that cushion block 7 passes through first
Hole 31；The cutter shaft 60 of hobboing cutter 6 includes the first positioning surface 61, the second positioning surface 62 and third positioning surface 63, the first positioning surface 61 with
The contact positioning of compact heap 4, the second positioning surface 62 contact positioning with the bottom wall of groove 30, and third positioning surface 63 contacts fixed with cushion block 7
Position.
The present embodiment is preferred, and 1 center of tool apron is equipped with the aperture for placing 6 blade of hobboing cutter, and the two sides up and down of aperture are set
There is the mounting groove for installing supporting block 3.Guarantee that hobboing cutter 6 can successfully be worked, installs and be removed.Two sides up and down herein refer to
Be the two sides vertical with the cutter shaft 60 of hobboing cutter 6.The settable section of aperture is rectangle, and quadrangle is set as fillet.
The present embodiment is preferred, and 3 top of supporting block is higher than 1 top of tool apron.Due to being equipped with groove 30 in supporting block 3, other
Important component such as compact heap 4, cushion block 7 be all disposed in groove 30, therefore groove 30 need space it is larger, supporting block 3
Top carries the pressure of cushion block 7, it is therefore desirable to have certain thickness, the setting of 3 top of supporting block is higher than tool apron 1, can make to prop up
The thickness on 3 top of bracer increases, the fastness of enhancement device.
The present embodiment is preferred, is provided with the second through-hole 32 on 1 corresponding position of 30 bottom wall of groove and tool apron, housing screw 5 is worn
The second through-hole 32 is crossed, 4 one side of compact heap is contacted with the first positioning surface 61, and another side is contacted with 30 side wall of groove.For compact heap
4, it needs to compress cutter shaft 60, is capable of fixing cutter shaft 60 in groove 30, it is therefore desirable to be contacted on one side with the first positioning surface 61
Convenient for the positioning of cutter shaft 60, another side is contacted with groove 30, guarantees to compress effect, in order to guarantee 4 uniform force of compact heap, can be incited somebody to action
The opposite face in the face that compact heap 4 is contacted with the first positioning surface 61 is contacted with 30 side wall of groove.
The present embodiment is preferred, and 3 top of supporting block is provided with 8 through-hole of cushion block screw right above first through hole 31, and cushion block 7 pushes up
End is connected with the roof of groove 30, and cushion block 7 is connected to 3 top of supporting block by cushion block screw 8.Cushion block 7 and third positioning surface 63
Contact, needs that it is fixed by cushion block screw 8, cushion block screw 8 is convenient for through to the upper surface on 3 top of supporting block
It checks the case where cushion block screw 8 fixes cushion block 7, guarantees closely to connect between cushion block 7 and supporting block 3.
The present embodiment is preferred, the both sides of first through hole 31 respectively with 30 side wall of the third positioning surface 63 of cutter shaft 60 and groove
Alignment, the diameter of first through hole 31 are not less than the length of orthographic projection of the cutter shaft 60 on 30 bottom wall of groove.First through hole 31 is set
Meter can make one side of cushion block 7 and the side wall of groove 30 connect at the edge of groove 30, and 7 stress of cushion block when installation is enable to transmit
To supporting block 3, if cushion block 7 is not contacted with 30 side wall of groove, 7 stress of cushion block is excessive, is easily damaged, and safety accident occurs；The
The diameter of one through-hole 31 guarantees that cutter shaft 60 can be logical from first not less than the length of orthographic projection of the cutter shaft 60 on 30 bottom wall of groove
It is passed through in hole 31, convenient for the replacement and installation of hobboing cutter 6, the diameter of first through hole 31 also be should not be too large, and otherwise will cause 7 mistake of cushion block
Greatly, waste material, unreasonable structural design, the settable diameter less than cutter shaft 60 of the diameter of first through hole 31 are long.
The present embodiment is preferred, and the bottom surface of the first positioning surface 61 and groove 30 forms inclination angle, tilt angle 45-90
Degree.Tilt angle herein refers to the first positioning surface 61 and lesser angle in the inclination angle of the bottom surface formation of groove 30.First is fixed
Plane 61 is designed to inclined positioning surface, self-locking structure is just formed between such cutter shaft 60 and compact heap 4, the second of cutter shaft 60
Positioning surface 62 contacted with 30 bottom wall of groove positioning, third positioning surface 63 contacted with cushion block 7 positioning in the case where, it is ensured that hobboing cutter
6 position is completely fixed, and achievees the purpose that reliably to lock hobboing cutter 6.To obtain better fixed effect, the first positioning surface 61 can
It is set as tilting to 7 direction of cushion block, i.e. one side shape with a narrow upper and lower width that contacts with the first positioning surface 61 of compact heap 4.
The locking device structure of the present embodiment is simple, accurate positioning, fixed reliable, replaces convenient for hobboing cutter, can be easily
Hobboing cutter height is adjusted, the generation of hobboing cutter dropping situations is reduced.
The application method of the hobboing cutter locking device of the present embodiment is as follows, and supporting block 3 is first mounted on tool apron by supporting screw 2
Compact heap 4 is mounted in groove 30 by 1 two sides, and housing screw 5 is not tightened, and hobboing cutter 6 is installed in groove 30, makes second to determine
Plane 62 is contacted with 30 bottom wall of groove, installs cushion block 7, and be fixed in supporting block 3 with cushion block screw 8, guarantees third positioning surface
It is contacted between 63 and cushion block 7, between the first positioning surface 61 and compact heap 4 well, then tightens housing screw 5.Due to cutter shaft 60
Three positioning surfaces are all positioned and fixed, therefore cutter shaft 60 can guarantee fixed effect in the groove 30 of supporting block 3, in shield
In machine tunneling process, to adjust the height of hobboing cutter 6, it is only necessary to supporting block 3 is replaced, between the groove 30 and bottom wall of supporting block 3
Distance adjusted according to the height that hobboing cutter 6 needs, the adjusting of 6 height of hobboing cutter can be realized.In shield machine tunneling process, such as
The abrasion of 6 cutter ring of fruit hobboing cutter is more than that there is a situation where eccentric wears, fracture for its permissible value or cutter ring, when needing replacing hobboing cutter 6, dimension
Shield personnel can unclamp housing screw 5, unclamp again and remove cushion block screw 8, then remove cushion block 7, by hobboing cutter 6 from the cutterhead back side
Cutter shaft 60 takes out from first through hole 31, then new hobboing cutter 6 is changed, with cushion block screw 8 that cushion block 7 is fixed, then tightens compression
The replacement of hobboing cutter 6 can be completed in screw 5.Due to the special construction of this locking mode, as long as supporting block 3 and cushion block 7 are not fallen off,
Even if 4 loose or dislocation of compact heap, hobboing cutter 6 will not fall off from tool apron 1.
Many details are elaborated in the above description to fully understand the present invention.But above description is only
Presently preferred embodiments of the present invention, the invention can be embodied in many other ways as described herein, therefore this
Invention is not limited by specific implementation disclosed above.Any those skilled in the art are not departing from the technology of the present invention simultaneously
In the case of aspects, all technical solution of the present invention is made using the methods and technical content of the disclosure above many possible
Changes and modifications or equivalent example modified to equivalent change.Anything that does not depart from the technical scheme of the invention, according to this
The technical spirit of invention any simple modifications, equivalents, and modifications made to the above embodiment, still fall within skill of the present invention
In the range of the protection of art scheme.
Claims (7)
1. a kind of adjustable falling-proof type hobboing cutter locking device of height, it is characterised in that: including tool apron (1), supporting block (3), compress
Block (4), hobboing cutter (6) and cushion block (7), the supporting block (3) are located at hobboing cutter (6) two sides, and supporting block (3) passes through supporting screw (2)
It is fixed on tool apron (1), supporting block (3) is equipped with groove (30), and the cutter shaft (60) of hobboing cutter (6) is located in groove (30)；The pressure
Tight block (4) is fixed in groove (30) by housing screw (5)；It is opened on the bottom wall and tool apron (1) corresponding position of supporting block (3)
Have first through hole (31), cushion block (7) passes through first through hole (31)；The cutter shaft (60) of the hobboing cutter (6) includes the first positioning surface
(61), the second positioning surface (62) and third positioning surface (63), first positioning surface (61) contact positioning with compact heap (4), the
Two positioning surfaces (62) contact positioning with the bottom wall of groove (30), and third positioning surface (63) contacts positioning with cushion block (7).
2. the adjustable falling-proof type hobboing cutter locking device of height according to claim 1, it is characterised in that: the tool apron (1)
Center is equipped with the aperture for placing hobboing cutter blade, and the two sides up and down of aperture are equipped with the mounting groove for installing supporting block (3).
3. the adjustable falling-proof type hobboing cutter locking device of height according to claim 1, it is characterised in that: the supporting block
(3) top is higher than tool apron (1) top.
4. the adjustable falling-proof type hobboing cutter locking device of height according to claim 1, it is characterised in that: groove (30) bottom wall
Be provided on tool apron corresponding position the second through-hole (32), housing screw (5) pass through the second through-hole (32), compact heap (4) on one side with
First positioning surface (61) contact, another side is contacted with groove (30) side wall.
5. the adjustable falling-proof type hobboing cutter locking device of height according to claim 1, it is characterised in that: the cushion block (7)
Top is connected with the roof of groove (30), and cushion block (7) is connected to supporting block (3) top by cushion block screw (8).
6. the adjustable falling-proof type hobboing cutter locking device of height according to claim 1, it is characterised in that: first through hole (31)
Both sides be aligned respectively with the third positioning surface (63) of cutter shaft (60) and groove (30) side wall, the diameter of first through hole (31) is not small
In the length of orthographic projection of the cutter shaft (60) on groove (30) bottom wall.
7. the adjustable falling-proof type hobboing cutter locking device of height according to claim 1, it is characterised in that: first positioning
The bottom surface of face (61) and groove (30) forms inclination angle, and tilt angle is 45-90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046576.5A CN106640104B (en) | 2017-01-19 | 2017-01-19 | A kind of adjustable falling-proof type hobboing cutter locking device of height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046576.5A CN106640104B (en) | 2017-01-19 | 2017-01-19 | A kind of adjustable falling-proof type hobboing cutter locking device of height |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640104A CN106640104A (en) | 2017-05-10 |
| CN106640104B true CN106640104B (en) | 2019-09-03 |
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ID=58840930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710046576.5A Active CN106640104B (en) | 2017-01-19 | 2017-01-19 | A kind of adjustable falling-proof type hobboing cutter locking device of height |
Country Status (1)
| Country | Link |
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| CN (1) | CN106640104B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372537B (en) * | 2018-11-28 | 2024-08-16 | 中铁工程装备集团有限公司 | Novel hob blade holder capable of rapidly changing hob based on electrohydraulic control |
| WO2020108094A1 (en) * | 2018-11-28 | 2020-06-04 | 中铁工程装备集团有限公司 | Novel hobbing cutter holder capable of quick cutter replacement, and cutter replacement method therefor |
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| CN201874584U (en) * | 2010-12-02 | 2011-06-22 | 沈阳重型机械集团有限责任公司 | Cutter-disk hob-seat installing and positioning device |
| CN202055831U (en) * | 2011-03-24 | 2011-11-30 | 山东天工岩土工程设备有限公司 | Trapezoidal shaft type mounting and locking mechanism for disc cutter |
| CN103643962A (en) * | 2013-12-11 | 2014-03-19 | 大连理工大学 | Hob height adjustment methods based on gaskets and positioning blocks |
| CN205298216U (en) * | 2015-12-28 | 2016-06-08 | 中铁工程装备集团有限公司 | TBM hobbing cutter is from locking connecting bolt of locking -type |
| CN106285707A (en) * | 2016-09-18 | 2017-01-04 | 中铁工程装备集团有限公司 | A kind of extension type limit hobboing cutter girff |
| CN206448815U (en) * | 2017-01-19 | 2017-08-29 | 徐工集团凯宫重工南京有限公司 | A kind of height adjustable falling-proof type hobboing cutter locking device |
-
2017
- 2017-01-19 CN CN201710046576.5A patent/CN106640104B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201874584U (en) * | 2010-12-02 | 2011-06-22 | 沈阳重型机械集团有限责任公司 | Cutter-disk hob-seat installing and positioning device |
| CN202055831U (en) * | 2011-03-24 | 2011-11-30 | 山东天工岩土工程设备有限公司 | Trapezoidal shaft type mounting and locking mechanism for disc cutter |
| CN103643962A (en) * | 2013-12-11 | 2014-03-19 | 大连理工大学 | Hob height adjustment methods based on gaskets and positioning blocks |
| CN205298216U (en) * | 2015-12-28 | 2016-06-08 | 中铁工程装备集团有限公司 | TBM hobbing cutter is from locking connecting bolt of locking -type |
| CN106285707A (en) * | 2016-09-18 | 2017-01-04 | 中铁工程装备集团有限公司 | A kind of extension type limit hobboing cutter girff |
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| Publication number | Publication date |
|---|---|
| CN106640104A (en) | 2017-05-10 |
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Inventor after: Su Yanqi Inventor after: Xu Haolang Inventor after: Zhao Decheng Inventor after: Yao Ping Inventor after: Ding Shaohua Inventor before: Su Yanqi Inventor before: Xu Haolang Inventor before: Zhao Decheng Inventor before: Yao Pinghui Inventor before: Ding Shaohua |
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Address after: Wuhua Road, Binjiang Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee after: XCMG KAIGONG HEAVY INDUSTRY NANJING Co.,Ltd. Address before: Wuhua Road, Binjiang Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee before: XCMG-KAIGONG HEAVY INDUSTRY NANJING Co.,Ltd. |