CN203668994U - Ditcher - Google Patents
Ditcher Download PDFInfo
- Publication number
- CN203668994U CN203668994U CN201420013023.1U CN201420013023U CN203668994U CN 203668994 U CN203668994 U CN 203668994U CN 201420013023 U CN201420013023 U CN 201420013023U CN 203668994 U CN203668994 U CN 203668994U
- Authority
- CN
- China
- Prior art keywords
- cutter
- chain
- ditching machine
- plate
- chassis
- 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
Links
- 238000003801 milling Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000005452 bending Methods 0.000 claims description 38
- 230000032258 transport Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 abstract description 27
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
Landscapes
- Sawing (AREA)
Abstract
The utility model provides a ditcher. The ditcher comprises a cab, a hydraulic transmission system and an action system. The cab is used for monitoring and controlling action, the hydraulic transmission system is used for providing stable power, and the action system is used for executing an action instruction sent from the cab. The action system comprises a track assembly, a chassis, a depth controlling device, a milling device, a material collecting device and a material discharging device. The action system included in the ditcher can dig while walking and can achieve integrated operation from digging to feeding, the continuous soil-stone (mine) milling mechanical equipment is high in efficiency, low in energy consumption and little in pollution, and the peripheral earth surface cannot be damaged.
Description
Technical field
The utility model belongs to the mechanical field for native stone (ore deposit) string milling, is specifically related to a kind of ditching machine.
Background technology
At present, domestic large-scale cut and fill balance engineering, the excavation of large-scale petroleum pipe alley, natural gas line ditch, high voltage cable ditch, trench digging engineering, the exploitation of opencut still adopts the mode of excavator (rig)+crushing engine (explosion)+loader (bulldozer) combination to carry out, and this combination makes each operation interruption, inefficiency, energy consumption is high, environment pollution is large.
Utility model content
The utility model is intended to overcome prior art defect, a kind of ditching machine is provided, its moving system comprising can be walked while be excavated, and can realize the integrated operation from excavating feeding, be the plant equipment of native stone (ore deposit) milling of a kind of high efficiency, low energy consumption, low pollution, continous way, and do not destroy periphery earth's surface.
For achieving the above object, the technical scheme that the utility model provides is:
A kind of ditching machine, comprise driver's cabin, Hydraulic Power Transmission System and moving system, described driver's cabin is used for moving to be monitored and manipulation, described Hydraulic Power Transmission System is used to provide stable power, described moving system is used for carrying out the action command that driver's cabin sends, and described moving system comprises track rail assembly; Chassis, described chassis is arranged on described track rail assembly; The dark device of control, the dark device of described control comprises telescopic mechanism and linkwork, described linkwork comprises the first tie point, the second tie point and the 3rd tie point, one end of the first described tie point and described telescopic mechanism is hinged, the second described tie point is articulated with on described chassis, and the other end of described telescopic mechanism is fixed on described chassis; Milling attachment, described milling attachment comprises milling seat, be fixed on the first head sprocket on described milling seat with first from sprocket wheel, be set around first chain of described the first head sprocket and first from sprocket wheel, be arranged at the carrier bar on the first described chain and be arranged at described in carrier bar on the first cutter, on the milling pin assembly described in the 3rd tie point of described linkwork is fixed on; Material-gathering device, the second head sprocket and second that described material-gathering device comprises skeleton, be arranged at retainer plate on described skeleton, be arranged at described skeleton two ends from sprocket wheel, be set around described the second head sprocket and second the second chain from sprocket wheel and be arranged at the feed mechanism the second described chain, described retainer plate and described skeleton form material collecting tank, and described material-gathering device is fixed on described chassis by skeleton; Discharge device, described discharge device comprises the connecting gear that transports earth material, one end of one end of described connecting gear and described retainer plate joins.
As such scheme preferably, also comprise guide strip, described guide strip is arranged on the both sides on described chassis, extends laterally from chassis, described material-gathering device is arranged between described guide strip away from one end of discharge device.
As such scheme preferably, described carrier bar is circular layout along described chain, the first described cutter is " M " shape on described carrier bar to be arranged, the axis of symmetry of described " M " shape the first cutter is along the direction setting that is circular layout of described carrier bar.
As such scheme preferably, described milling pin assembly also comprises the first cylinder from sprocket wheel both sides described in being arranged at symmetrically, described cylinder is provided with the second cutter, the second cutter on the cylinder of described both sides is symmetrical arranged along the axis of symmetry of described " M " shape the first cutter, and the second cutter shape on the cylinder of both sides has a certain degree, on the axis of symmetry of described " M " shape the first cutter, the opposite direction of the direction of described the second cutter angulation and described the first cutter angulation.
As such scheme preferably, described cylinder is provided with many groups of the second cutters that are parallel to each other, and on described carrier bar, is provided with many groups of " M " shape the first cutters along ring chain direction.
As such scheme preferably, described feed mechanism comprises gripper shoe and bending plate, described gripper shoe is arranged on the second described chain, the side of described bending plate is fixed in described gripper shoe, described gripper shoe and described bending plate form conveyer trough, and a wherein plate of described bending plate is placed in described material collecting tank.
As such scheme preferably, described gripper shoe has relative first side and second side, described first side is fixed on the second described chain, described second side and described first side shape have a certain degree, the bending angle of described bending plate is right angle, another plate of described bending plate is mutually concordant with described second side fixing, and the bending angle of described bending plate is identical with the direction of described the first side plate and the second side plate formation certain angle.
As such scheme preferably, described telescopic mechanism is hydraulic jack, described linkwork is triangular supports.
As such scheme preferably, described material-gathering device and horizontal plane shape have a certain degree, described material-gathering device near one end of discharge device higher than the other end.
As such scheme preferably, described first is greater than the wheel footpath of the first described head sprocket from the wheel footpath of sprocket wheel.
Owing to adopting technique scheme, the utility model compared with prior art has the following advantages:
1, the ditching machine that the utility model provides, its moving system comprising can be walked while be excavated, and can realize the integrated operation from excavating feeding, be the plant equipment of native stone (ore deposit) milling of a kind of high efficiency, low energy consumption, low pollution, continous way, and do not destroy periphery earth's surface.
2, the guide strip comprising, can introduce material-gathering device by the earth material excavating through milling pin assembly.
3, the first described cutter is " M " shape on carrier bar, can make the first cutter excavate native stone according to the order from centre to both sides, improves digging efficiency.
4, first be provided with cylinder from sprocket wheel both sides, cylinder is provided with the second cutter, and the layout of the second cutter makes the side soil stone excavating can be pooled to middle, convenient by native stone introducing guide strip.
5, be provided with multiple the first cutters and the second cutter, increase work efficiency.
6, the native stone that feed mechanism can excavate milling pin assembly is on one side transported in retainer plate, on one side the native stone in retainer plate is sent in the connecting gear of discharge device.
7, the first side in the gripper shoe in feed mechanism and second side shape have a certain degree, bending plate is right angle bending, and in bending plate, a plate is mutually concordant with second side, the conveyer trough volume that gripper shoe and bending plate are formed is larger, and another plate that is placed in the bending plate of material collecting tank more easily enters discharge device by native material collecting tank stone.
8, telescopic mechanism is hydraulic jack, and linkwork is triangular supports, simple in structure when making practical function, cost-saving.
9, material-gathering device, horizontal by certain angle, makes the position of material-gathering device and discharge device more reasonable, facilitates native stone transport.
10, the wheel footpath of the first described head sprocket is less than the first wheel footpath from sprocket wheel, the application life of having reduced transmission speed, having improved the first chain and the first cutter.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the not duty of a kind of ditching machine that Fig. 1 provides for the utility model;
The structural representation of the duty of a kind of ditching machine that Fig. 2 provides for the utility model;
Fig. 3 is the structural representation of the milling pin assembly in Fig. 1;
Fig. 4 is the mounting structure schematic diagram of the first Cutting tool installation manner on the first chain in milling pin assembly;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the structural representation of material-gathering device;
Fig. 7 is the local enlarged diagram in P place in Fig. 6.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Fig. 1-7, the utility model provides a kind of ditching machine, comprise driver's cabin 8, Hydraulic Power Transmission System 9 and moving system, described driver's cabin is used for moving to be monitored and manipulation, described Hydraulic Power Transmission System is used to provide stable power, described moving system is used for carrying out the action command that driver's cabin sends, and described moving system comprises:
(1) track rail assembly 1;
(2) chassis 2, described chassis is arranged on described track rail assembly, and the both sides on described chassis are provided with guide strip 3, and described guide strip extends laterally from described chassis;
(3) the dark device 4 of control, the dark device 4 of described control comprises telescopic mechanism 41 and linkwork 42, described telescopic mechanism is hydraulic jack, described linkwork is triangular supports, described triangular supports comprises the first tie point, the second tie point and the 3rd tie point, one end of the first described tie point and described oil cylinder is hinged, and the second described tie point is articulated with on described chassis, and the other end of described oil cylinder is fixed on described chassis;
(4) milling attachment 5, described milling attachment comprises milling seat 51, the first head sprocket 52 and first on milling seat described in being fixed on is from sprocket wheel 53, be set around first chain 54 of described the first head sprocket and first from sprocket wheel, be arranged at the carrier bar 55 on the first described chain and be arranged at the first cutter 56 on described carrier bar, described first is greater than the wheel footpath of the first described head sprocket 52 from the wheel footpath of sprocket wheel 53, the 3rd tie point of described triangular supports 42 is fixed on described milling pin assembly 5, the first described cutter 56 is " M " shape and arranges on described carrier bar 55, the axis of symmetry of described " M " shape the first cutter is along the direction setting that is circular layout of described carrier bar, described milling pin assembly also comprises the first cylinder 57 from sprocket wheel both sides described in being arranged at symmetrically, described cylinder is provided with the second cutter 58, the second cutter on the cylinder of described both sides is symmetrical arranged along the axis of symmetry of described " M " shape the first cutter, and the second cutter shape on the cylinder of both sides has a certain degree, on the axis of symmetry of described " M " shape the first cutter, the opposite direction of the direction of the second described cutter angulation and the first described cutter angulation, described cylinder is provided with many groups of the second cutters that are parallel to each other, on described carrier bar, be provided with many groups of " M " shape the first cutters along ring chain direction,
(5) material-gathering device 6, described material-gathering device comprises skeleton 61, be arranged at the retainer plate 62 on described skeleton, be arranged at second head sprocket 63 and second at described skeleton two ends from sprocket wheel 64, be set around the second described head sprocket and second the second chain 65 from sprocket wheel and be arranged at the feed mechanism 66 the second described chain, described retainer plate 62 forms material collecting tank 67 with described skeleton 61, described material-gathering device is fixed on described chassis by skeleton, described material-gathering device and horizontal plane shape have a certain degree, described material-gathering device near one end of guide strip lower than the other end, described feed mechanism 66 comprises gripper shoe 6601 and bending plate 6602, described gripper shoe 6601 has relative first side 6601-1 and second side 6601-2, described first side 6601-1 is fixed on the second described chain 65, described second side 6601-2 and described first side 6601-1 shape have a certain degree, the bending angle of described bending plate 6602 is right angle, another plate in described bending plate 6602-2 is mutually concordant with described second side 6601-2 fixing, the bending angle of described bending plate is identical with the direction that described the first side plate and the second side plate form certain angle, the side of described bending plate is fixed in described gripper shoe, described gripper shoe and described bending plate form conveyer trough, a wherein plate 6602-1 of described bending plate is placed in described material collecting tank 67,
(6) discharge device 7, described discharge device 7 comprises the connecting gear 71 that transports earth material, one end of one end of described connecting gear and described retainer plate joins.
The ditching machine that the utility model provides, its moving system comprising can be walked while be excavated, and can realize the integrated operation from excavating feeding, be the plant equipment of native stone (ore deposit) milling of a kind of high efficiency, low energy consumption, low pollution, continous way, and do not destroy periphery earth's surface; The guide strip comprising, can introduce material-gathering device by the earth material excavating through milling pin assembly; The first described cutter is " M " shape on carrier bar, can make the first cutter excavate native stone according to the order from centre to both sides, improves digging efficiency; First is provided with cylinder from sprocket wheel both sides, and cylinder is provided with the second cutter, and the layout of the second cutter makes the side soil stone excavating can be pooled to middle, convenient by native stone introducing guide strip; Be provided with multiple the first cutters and the second cutter, increase work efficiency; The native stone that feed mechanism can excavate milling pin assembly is on one side transported in retainer plate, on one side the native stone in retainer plate is sent in the connecting gear of discharge device; First side in gripper shoe in feed mechanism and second side shape have a certain degree, bending plate is right angle bending, and in bending plate, a plate is mutually concordant with second side, the conveyer trough volume that gripper shoe and bending plate are formed is larger, and another plate that is placed in the bending plate of material collecting tank more easily enters discharge device by native material collecting tank stone; Telescopic mechanism is hydraulic jack, and linkwork is triangular supports, simple in structure when making practical function, cost-saving; Material-gathering device, horizontal by certain angle, makes the position of material-gathering device and discharge device more reasonable, facilitates native stone transport; The wheel footpath of the first described head sprocket is less than the first wheel footpath from sprocket wheel, the application life of having reduced transmission speed, having improved the first chain and the first cutter.
The operating principle of the ditching machine that the utility model provides is: when ditching machine is not worked as shown in Figure 1, in driver's cabin, manipulate and start ditching machine, now Hydraulic Power Transmission System starts to provide power, thereby hydraulic jack extends and drives triangular supports rotation control milling pin assembly to go deep into ground, as shown in Figure 2, along with the rotation of the first chain, the first cutter excavates native stone from centre to both sides, drum rotating, the second cutter excavates native stone on the one hand from both sides to centre, the native stone on the other hand both sides being excavated collects toward centre, guide strip is pooled to the native stone of the first cutter and the excavation of the second cutter a port of material-gathering device, along with the rotation of the second chain, feed mechanism has ladled out the native stone having excavated along with the second chain moves together, native stone while moving to retainer plate top in feed mechanism is introduced in retainer plate, along with the rotation of the second chain, in bending plate, being placed in the native stone that a plate of material collecting tank ladled out feed mechanism blocks into the other end from one end of retainer plate, thereby enter the connecting gear in discharge device, the native stone that enters connecting gear is transported to as required carrier loader or directly outputs to corresponding place.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (10)
1. a ditching machine, comprise driver's cabin, Hydraulic Power Transmission System and moving system, described driver's cabin is used for moving to be monitored and manipulation, described Hydraulic Power Transmission System is used to provide stable power, described moving system is used for carrying out the action command that driver's cabin sends, it is characterized in that, described moving system comprises:
Track rail assembly;
Chassis, described chassis is arranged on described track rail assembly;
The dark device of control, the dark device of described control comprises telescopic mechanism and linkwork, described linkwork comprises the first tie point, the second tie point and the 3rd tie point, one end of the first described tie point and described telescopic mechanism is hinged, the second described tie point is articulated with on described chassis, and the other end of described telescopic mechanism is fixed on described chassis;
Milling attachment, described milling attachment comprises milling seat, be fixed on the first head sprocket on described milling seat with first from sprocket wheel, be set around first chain of described the first head sprocket and first from sprocket wheel, be arranged at the carrier bar on the first described chain and be arranged at described in carrier bar on the first cutter, on the milling pin assembly described in the 3rd tie point of described linkwork is fixed on;
Material-gathering device, the second head sprocket and second that described material-gathering device comprises skeleton, be arranged at retainer plate on described skeleton, be arranged at described skeleton two ends from sprocket wheel, be set around described the second head sprocket and second the second chain from sprocket wheel and be arranged at the feed mechanism the second described chain, described retainer plate and described skeleton form material collecting tank, and described material-gathering device is fixed on described chassis by skeleton;
Discharge device, described discharge device comprises the connecting gear that transports earth material, one end of one end of described connecting gear and described retainer plate joins.
2. ditching machine according to claim 1, it is characterized in that, also comprise guide strip, described guide strip is arranged on the both sides on described chassis, extend laterally from chassis, described material-gathering device is arranged between described guide strip away from one end of discharge device.
3. ditching machine according to claim 1 and 2, it is characterized in that, described carrier bar is circular layout along described chain, and the first described cutter is " M " shape on described carrier bar to be arranged, the axis of symmetry of described " M " shape the first cutter is along the direction setting that is circular layout of described carrier bar.
4. ditching machine according to claim 3, it is characterized in that, described milling pin assembly also comprises the first cylinder from sprocket wheel both sides described in being arranged at symmetrically, described cylinder is provided with the second cutter, the second cutter on the cylinder of described both sides is symmetrical arranged along the axis of symmetry of described " M " shape the first cutter, and the second cutter shape on the cylinder of both sides has a certain degree, on the axis of symmetry of described " M " shape the first cutter, the opposite direction of the direction of described the second cutter angulation and described the first cutter angulation.
5. ditching machine according to claim 4, is characterized in that, described cylinder is provided with many groups of the second cutters that are parallel to each other, and on described carrier bar, is provided with many groups of " M " shape the first cutters along ring chain direction.
6. ditching machine according to claim 1 and 2, it is characterized in that, described feed mechanism comprises gripper shoe and bending plate, described gripper shoe is arranged on the second described chain, the side of described bending plate is fixed in described gripper shoe, described gripper shoe and described bending plate form conveyer trough, and a wherein plate of described bending plate is placed in described material collecting tank.
7. ditching machine according to claim 6, it is characterized in that, described gripper shoe has relative first side and second side, described first side is fixed on the second described chain, described second side and described first side shape have a certain degree, the bending angle of described bending plate is right angle, another plate of described bending plate is mutually concordant with described second side fixing, and the bending angle of described bending plate is identical with the direction of described the first side plate and the second side plate formation certain angle.
8. ditching machine according to claim 1 and 2, is characterized in that, described telescopic mechanism is hydraulic jack, and described linkwork is triangular supports.
9. ditching machine according to claim 1 and 2, is characterized in that, described material-gathering device and horizontal plane shape have a certain degree, described material-gathering device near one end of discharge device higher than the other end.
10. ditching machine according to claim 1, is characterized in that, described first is greater than the wheel footpath of the first described head sprocket from the wheel footpath of sprocket wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013023.1U CN203668994U (en) | 2014-01-09 | 2014-01-09 | Ditcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013023.1U CN203668994U (en) | 2014-01-09 | 2014-01-09 | Ditcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668994U true CN203668994U (en) | 2014-06-25 |
Family
ID=50965310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420013023.1U Expired - Fee Related CN203668994U (en) | 2014-01-09 | 2014-01-09 | Ditcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203668994U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741742A (en) * | 2014-01-09 | 2014-04-23 | 湖北道一交通科技有限公司 | Ditcher |
| CN108506013A (en) * | 2018-04-09 | 2018-09-07 | 成都利拓重工机械有限公司 | A kind of milling digging head of milling digging machine |
| CN108756921A (en) * | 2018-04-09 | 2018-11-06 | 成都利拓重工机械有限公司 | A kind of pipe capsule construction milling digging device |
-
2014
- 2014-01-09 CN CN201420013023.1U patent/CN203668994U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741742A (en) * | 2014-01-09 | 2014-04-23 | 湖北道一交通科技有限公司 | Ditcher |
| CN103741742B (en) * | 2014-01-09 | 2017-01-25 | 湖北道一专用机械有限公司 | Ditcher |
| CN108506013A (en) * | 2018-04-09 | 2018-09-07 | 成都利拓重工机械有限公司 | A kind of milling digging head of milling digging machine |
| CN108756921A (en) * | 2018-04-09 | 2018-11-06 | 成都利拓重工机械有限公司 | A kind of pipe capsule construction milling digging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206346237U (en) | Excavator is with rotatable three joint arms structure | |
| CN205024740U (en) | Civil engineering uses multi -functional excavating machinery | |
| CN103741742B (en) | Ditcher | |
| CN203668994U (en) | Ditcher | |
| CN102392465A (en) | Multi-body discontinuous coal petrography cutting equipment | |
| CN103388346A (en) | Integrated mining excavation and loading machine | |
| CN202064950U (en) | Cutting head for excavating and ditching integrated machine | |
| CN203729876U (en) | Multifunctional non-excavation horizontal orientation drilling machine | |
| CN202298705U (en) | Multi-body discontinuous coal and rock cutting equipment | |
| CN102561433A (en) | Drilling, crushing, digging and loading integrated machine for all-hydraulic tunneling | |
| CN102817363A (en) | Application of all-in-one machine for digging, drilling and anchoring in basement foundation pipe support engineering | |
| CN201062364Y (en) | Digging stowage conveyer | |
| CN203394529U (en) | Foundation clearing machine for opencast mine | |
| CN102777188A (en) | Mine milling-excavating integrated machine | |
| CN109630123A (en) | Deep shaft rock ripper | |
| CN204570774U (en) | The shaping trenching machine in self-propelled seabed | |
| CN210288523U (en) | Excavator suitable for side wall operation | |
| CN208431000U (en) | Deep shaft rock ripper | |
| CN108240007A (en) | Crawler type frozen soil quick multifunctional excavates locomotive | |
| CN202500166U (en) | Tunnel loading machine | |
| CN102383449B (en) | Digging loader | |
| CN201007007Y (en) | Digger | |
| CN201250666Y (en) | Underground coal excavating and transiting machine | |
| CN212359774U (en) | Intelligent full-hydraulic drilling, anchoring and protecting three-arm integrated machine for coal mine | |
| CN201241718Y (en) | Clamshell excavator type mucking anchorage machine |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20170109 |