CN207419572U - A kind of rotate excavates device for casting - Google Patents
A kind of rotate excavates device for casting Download PDFInfo
- Publication number
- CN207419572U CN207419572U CN201720066961.1U CN201720066961U CN207419572U CN 207419572 U CN207419572 U CN 207419572U CN 201720066961 U CN201720066961 U CN 201720066961U CN 207419572 U CN207419572 U CN 207419572U
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- chain
- ground
- excavating gear
- casting
- rack
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- 238000005266 casting Methods 0.000 title claims abstract description 41
- 238000010276 construction Methods 0.000 claims abstract description 40
- 230000010412 perfusion Effects 0.000 claims abstract description 17
- 238000009412 basement excavation Methods 0.000 claims abstract description 10
- 230000007423 decrease Effects 0.000 claims abstract 2
- 230000005540 biological transmission Effects 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 39
- 239000002689 soil Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 238000002512 chemotherapy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model proposes a kind of rotate to excavate device for casting, it is used for the rotation excavation device for casting 1 of foundation bottom and is made of swinging excavating gear 2, rack 3, ground conveying device 4 and device for casting 5, and the thickness before device 1 rotates is less than or equal to basic thickness；Swinging excavating gear 2 rotates around the axis of rack 3 or hole and excavates ground simultaneously, and the ground excavated is sent the bottom that one big foundation width to its upper to top, 5 concrete perfusion of device for casting, is generated after the completion of construction by ground conveying device 4.Construction method divides A methods and B methods, and there are two types of structure types for swinging excavating gear 2：Vertical rotary type, horizontal gyrating type.Advantage：It can be in interior construction of having slotted, the excavating gear that device 1 carries can also be utilized to excavate ground to decline, construction is simple, and the narrow basis of a bottom wide upper portion is generated after the completion of constructing, basic bearing capacity is greatly increased, the foundation construction being limited particularly suitable for ground space.
Description
Technical field
The present invention relates to a kind of rotate to excavate device for casting, belongs to civil engineering foundation construction technical field.
Background technology
Generally using cut and cover method, process is mainly that surveying and locating, excavation of foundation pit, bed course pour for existing spread foundation construction
Build, reinforcement installation, model sheetinstallat, pour concrete, concrete curing, form removal, Extended chemotherapy backfill.Quantities is big, and face rings ratio over the ground
It is larger.
Existing isolated footing, can divide by construction method has prefabricated foundation and perfusion basis, axially upper and lower section
Face is not much different, and the bearing capacity of conventional foundation is limited in the case of being limited in ground construction region.
The content of the invention
Proposed by the present invention is that a kind of rotate excavates device for casting, and purpose is intended to overcome defect existing in the prior art,
Its major advantage：It can construct in the slot for reach set depth of having slotted, rotation can also be utilized to excavate device for casting and carried
Excavating gear excavate ground and drop to projected depth, construction is simple, and it is narrow to generate a bottom wide upper portion after the completion of constructing
Basis greatly increases basic bearing capacity, the foundation construction being limited particularly suitable for ground space.
The technical solution of the present invention：Device for casting 1 is excavated by swinging excavating gear for the rotation of foundation bottom
2nd, rack 3, ground conveying device 4 and device for casting 5 form, and the thickness before device 1 rotates is less than or equal to basic thickness；It applies
Man-hour, swinging excavating gear 2 rotate around the axis of rack 3 or hole and excavate ground, the rock that ground conveying device 4 will have been excavated simultaneously
Soil send the bottom that one big foundation width to its upper to top, 5 concrete perfusion of device for casting, is generated after the completion of construction, is
The component on basis.
Construction method divides A methods and B methods：
A methods include the following steps：
1）Fluting reaches the depth of setting at the scene；
2）Device 1 is put into slot；
3）Swinging excavating gear 2 rotates around the axis of rack 3 or hole and excavates ground；
4）Ground conveying device 4 send the ground excavated to top；
5）5 concrete perfusion of device for casting；
6）Swinging excavating gear 2 turns to setting position, that is, completes the construction of the big base foundation of width to its upper；
7）Partly or entirely remove device 1；
8）The construction of basic other parts is carried out until all terminating；
B methods include the following steps：
1）Fluting reaches the depth of setting at the scene；
2）Device 1 is put into slot；
3）Swinging excavating gear 2 is rotated around the axis of rack 3 or hole, and when rotation only excavates ground not concrete perfusion；
4）Ground conveying device 4 send the ground excavated to top；
5）Swinging excavating gear 2 turns to setting position；
6）Remove partial devices 1；
7）5 concrete perfusion of device for casting completes the construction of the big base foundation of width to its upper；
8）The construction of basic other parts is carried out until all terminating.
Swinging excavating gear 2 is the swinging excavating gear 2A of vertical rotation, and swinging excavating gear 2A is by rack 2A-
1st, track, chain knife, chain knife transmission device, rotary motive power device composition；Chain knife equipped with cutting ground on track, chain knife is by chain
With the cutter composition being fixed on chain, chain knife transmission device is mainly made of chain drive and sprocket wheel；It is turned round during construction
Power set make gantry rotation, chain drive drive chain, and chain-driving cutter is run, and cutter excavates ground, and ground is defeated
Send device 4 that the ground excavated is delivered to top, swinging excavating gear 2A removes chain knife after returning back to setting position.
Swinging excavating gear 2 is horizontal gyrating type excavating gear 2B, and swinging excavating gear 2B is by rack 2B-1, chain
Knife, chain knife transmission device, rotary motive power device composition, rack are equipped with track, and the chain knife of cutting ground, chain knife are housed on track
It is made of chain and the cutter being fixed on chain, chain knife transmission device is mainly made of chain drive and sprocket wheel；Construction
When rotary motive power device make gantry rotation, chain driving device for cutter drive chain, chain-driving cutter is run along track, cutter dig
Ground is dug, the ground excavated is delivered to top by ground conveying device, after swinging excavating gear 2B returns back to setting position
Remove chain knife.
Advantages of the present invention：It can construct in the slot for reach set depth of having slotted, can also utilize to rotate and excavate filling
The excavating gear that dispensing device carries excavates ground and drops to projected depth, construction is simple, and generates a bottom after the completion of constructing
The narrow basis of wide upper portion, greatly increases basic bearing capacity, the foundation construction being limited particularly suitable for ground space.
Description of the drawings
Fig. 1 is that the chain knife 6 for excavating ground is arranged at the bottom of rack 3, and swinging excavating gear 2A is that the structure of vertical rotation is shown
Be intended to and be made of sprocket wheel and chain knife etc. rack 3 bottom excavating gear 3-2 structure diagram；
Fig. 2 is the A-A sectional views of Fig. 1 and chain knife 6 had not only excavated ground in 3 bottom of rack but also was ground horizontal feed
The structure diagram of track 3-1 on structure diagram and rack 3；
Fig. 3 is that the B-B sectional views of Fig. 1 and the structure for the vertical ground conveying device being made of chain knife 6 and side cover are shown
It is intended to；
Structure diagram when Fig. 4 is the C direction views of Fig. 1 and vertical swinging excavating gear 2A does not rotate i.e. 0 °；
Fig. 5 is the D direction views of Fig. 1, and the chain knife transmission device 2-2 being made of driving device 2-2-1 and sprocket wheel 2-2-2
Structure diagram；
Fig. 6 is the structure diagram of chain knife 6,（a）It is the structure diagram of chain 6-1 and cutter 6-2 and by A crosses
Save the structure diagram of the crossed joint of the chain 6-1 of 6-1-1 and B crossed joints 6-1-2 compositions；And chain 6-1 realizes that space is curved
Bent structure diagram；
Fig. 7 is（b）It is the structure diagram that chain knife 6 is made of flexible-belt 6-1B and cutter 6-2B；And flexible-belt 6-1B
With the structure diagram of cutter 6-2B；
Fig. 8 is that the bottom of rack 3 does not have the structure diagram of chain knife 6 and with vertical swinging excavating gear 2A
Device 1 is put into the structure diagram in the groove that scene has been held successfully；
Structure diagram when Fig. 9 is the A direction views of Fig. 8 and vertical swinging excavating gear 2A does not rotate i.e. 0 °,
It is the structure diagram of the track 2A-1-1 on vertical rotary rack 2A-1；
Figure 10 is the structure diagram after swinging excavating gear 2A is rotated by 90 °；
Figure 11 is the B direction views of Fig. 8, and vertical swinging excavating gear 2A does not rotate the schematic diagram of i.e. 0 ° state；
Figure 12 is the structure diagram and vertical revolution when the vertical swinging excavating gear 2A of device 1 is rotated by 90 °
Excavate the structure diagram of ground, side rotation, back end edge laying steel plate and steel plate support system in formula excavating gear 2A front ends；
Figure 13 is structure diagram when the vertical swinging excavating gear 2A of device 1 rotates 180 °；
Figure 14 is to rotate set up steel reinforcement cage in the cavity formed after 180 °, be perfused and mix in vertical swinging excavating gear 2A
Coagulate the structure diagram of soil；
Figure 15 is that the bottom of rack 3 does not have the structure diagram of chain knife 6 and with horizontal gyrating type excavating gear 2B
Device 1 is put into the structure diagram in the groove that scene has been held successfully；
Figure 16 is the A direction views of Figure 15 and horizontal gyrating type excavating gear 2B is the structure diagram of level run,
It is the structure diagram of the horizontal rotation rack 2B-1 of horizontal gyrating type excavating gear 2B；
Figure 17 is that horizontal gyrating type excavating gear 2B is rotated and excavated ground, and the structure of 5 concrete perfusion of device for casting is shown
It is intended to and the rotary motive power of horizontal gyrating type excavating gear 2B is from concrete spray head 5-1, concrete is to swinging during perfusion
The pressure at 2 rear portion of excavating gear makes its structure diagram rotated；
Figure 18 is that the bottom of rack 3 is equipped with chain knife 6, and the chain knife of 3 bottom of rack operation excavates ground, rack 3 and device 2 one
Act the structure diagram declined and the structure diagram for the excavating gear 3-2 being made of chain knife and driving device；
Figure 19 is the C direction views of Figure 18 and the horizontal gyrating type excavating gear being made of rotary rack 2B-1 and chain knife 6
The structure diagram of the structure diagram of 2B and the concrete spray head 5-1 in rotary motive power source；
Figure 20 is the structure diagram that device 1 synchronously sinks down into projected depth with foundation bottom；
Figure 21 be horizontal gyrating type excavating gear 2B the right and left rotary rack 2B-1 when excavating ground spray coagulation
Soil to 90 ° of states structure diagram；
Figure 22 be horizontal gyrating type excavating gear 2B the right and left rotary rack 2B-1 when excavating ground spray coagulation
Soil to 180 ° of states structure diagram；
Figure 23 is the structure diagram of concave track a；
Figure 24 is the structure diagram of concave track a2；
Figure 25 is the structure diagram of plane track b；
Figure 26 is the structure diagram of convex track c；
Figure 27 is that d staggers into tapered structure diagram for the multiple rows of track in longitudinal direction；
Figure 28 is the structure diagram of d types track and multiple rows of chain knife；
1 in figure is the rotation excavation device for casting of foundation bottom, is conveyed by swinging excavating gear 2, rack 3, ground
Device 4, device for casting 5 form；2 be swinging excavating gear, by rotary rack 2-1, chain knife transmission device 2-2, rotary motive power
Device 2-3, ground conveyer 4 and chain knife 6 form；2 be swinging excavating gear, is divided to two kinds of structures：Vertical swinging excavates dress
Put with horizontal gyrating type excavating gear, by 6 groups of rotary rack 2-1, chain knife transmission device 2-2, rotary motive power device 2-3 and chain knife
Into；2A is vertical swinging excavating gear, by vertical rotary rack 2A-1, chain knife transmission device 2-2, rotary motive power device 2-3
It is formed with chain knife 6；2B is horizontal gyrating type excavating gear, by horizontal rotation rack 2B-1, chain knife transmission device 2-2, back rotation
Power apparatus 2-3 and chain knife 6 form；2-1 is the rotary rack of swinging excavating gear 2；2A-1 is vertical swinging excavating gear
The vertical rotary rack of 2A；2B-1 is the horizontal rotation rack of horizontal gyrating type excavating gear 2B；2-1-1 is rotary rack 2-1
On track；2A-1-1 is the track on vertical rotary rack 2A-1；2B-1-1 is the track on horizontal rotation rack 2B-1；2-
2 be chain knife transmission device；2-2-1 is the driving device of chain knife transmission device 2-2；2-2-2 is the chain of chain knife transmission device 2-2
Wheel；2-3 is rotary motive power device；3 be that rack is also basis；3-1 is the track in rack 3；3-2 is that the bottom of rack 3 is excavated
Device；4 be ground conveying device；5 be device for casting or independent perfusion equipment；5-1 is the nozzle of device for casting 5；
6 be the chain knife for forming excavating gear 1；6-1 is the chain for forming chain knife 6, including crawler belt, rope and flexible-belt；6-1-1 is composition
The A crossed joints of the crossed joint of chain 6-1；6-1-2 is the B crossed joints for the crossed joint for forming chain 6-1；6-1B is composition chain knife 6
Flexible-belt；6-2 is integrally fixed at the cutter of the excavation ground on chain 6-1；6-2B is integrally fixed at the excavation on flexible-belt 6-1B
The cutter of ground.
Specific embodiment
It rotates and excavates device for casting 1 by 5 groups of swinging excavating gear 2, rack 3, ground conveying device 4 and device for casting
Into the thickness before device 1 rotates is less than or equal to basic thickness；During construction, swinging excavating gear 2 around rack 3 axis or
Hole rotates excavates ground simultaneously, and ground conveying device 4 send the ground excavated to top, and 5 concrete perfusion of device for casting is applied
The bottom of one big foundation width to its upper is generated after the completion of work, is the component on basis.
The swinging excavating gear 2 be vertical rotation swinging excavating gear 2A, swinging excavating gear 2A by
Rack 2A-1, track, chain knife, chain knife transmission device, rotary motive power device composition；Chain knife equipped with cutting ground on track, chain
Knife is made of chain and the cutter being fixed on chain, and chain knife transmission device is mainly made of chain drive and sprocket wheel；It applies
Man-hour rotary motive power device makes gantry rotation, chain drive drive chain, the operation of chain-driving cutter, cutter excavation rock
The ground excavated is delivered to top by soil, ground conveying device 4, and swinging excavating gear 2A is removed after returning back to setting position
Chain knife.
The swinging excavating gear 2 is horizontal gyrating type excavating gear 2B, and swinging excavating gear 2B is by rack 2B-
1st, chain knife, chain knife transmission device, rotary motive power device composition, rack are equipped with track, and the chain knife of cutting ground is housed on track,
Chain knife is made of chain and the cutter being fixed on chain, and chain knife transmission device is mainly made of chain drive and sprocket wheel；
Rotary motive power device makes gantry rotation, chain driving device for cutter drive chain during construction, and chain-driving cutter is run along track, knife
Tool excavates ground, and the ground excavated is delivered to top by ground conveying device, and swinging excavating gear 2B returns back to setting position
It postpones and removes chain knife.
The rotary motive power device is concrete spray head, and concrete is to the pressure at 2 rear portion of swinging excavating gear during perfusion
Power makes its rotation.
The rack 3 is basis.
Including the excavating gear 3-2 being made of chain knife and driving device when the rack 3 is constructed, 3 bottom of rack is equipped with
The track of chain knife operation, the chain knife of 3 bottom of installation opportunity frame operation excavate ground, and rack 3 declines therewith.
The chain knife is multiple rows of chain knife, and multiple rows of chain knife carries out excavating or excavating respectively simultaneously as needed.
The chain of the composition chain knife is the chain of broad sense, including crawler belt, rope and flexible-belt.
The present invention is further described below in conjunction with the accompanying drawings：
As shown in Fig. 1~Fig. 7, it is defeated by vertical swinging excavating gear 2A, rack 3 and ground to rotate excavation device for casting 1
Device 4 is sent to form, device 2A is rotated around the axis of rack 3 or hole, and the thickness before device 1 rotates is less than or equal to basic thickness,
The narrow basis of a bottom wide upper portion is generated after the completion of construction；The device 2A for rotating excavation device for casting 1 is vertical rotation, dress
2A is put by 6 groups of vertical rotary rack 2A-1, chain knife transmission device 2-2, rotary motive power device 2-3, ground conveyer 4 and chain knife
Into the chain knife 6 equipped with cutting ground on the track on vertical rotary rack 2A-1, chain knife 6 is by chain 6-1 and is fixed on chain 6-
Cutter 6-2 compositions on 1, chain knife transmission device 2-2 are mainly made of chain drive 2-2-1 and sprocket wheel 2-2-2；During construction
Rotary motive power device 2-3 rotates vertical rotary rack 2A-1, chain drive 2-2-1 drive chain 6-1, chain 6-1 bands
Cutter 6-2 is run, and cutter 6-2 excavates ground, and the ground excavated is delivered to top by ground conveying device 4, and device 2A is returned
Chain knife 6 is removed after going to setting position.
As shown in Fig. 8~Figure 14, the dynamic construction method B methods therein for excavating device for casting include the following steps：
1）Fluting reaches the depth of setting at the scene；
2）Device 1 is put into slot；
3）Vertical swinging excavating gear 2A is rotated around the axis of rack 3 or hole, and when rotation only excavates ground and coagulation is not perfused
Soil；
4）Ground conveying device 4 send the ground excavated to top；
5）Swinging excavating gear 2 turns to setting position；
6）Remove partial devices 1；
7）5 concrete perfusion of device for casting completes the construction of the big base foundation of width to its upper；
8）The construction of basic other parts is carried out until all terminating.
As shown in Figure 15~Figure 17, the dynamic construction method A methods therein for excavating device for casting include the following steps：
1）Fluting reaches the depth of setting at the scene；
2）Device 1 is put into slot；
3）Horizontal gyrating type excavating gear 2B is rotated around the axis of rack 3 or hole and is excavated ground；
4）Ground conveying device 4 send the ground excavated to top；
5）5 concrete perfusion of device for casting；
6）Horizontal gyrating type excavating gear 2B turns to setting position, that is, completes the big base foundation of width to its upper
Construction；
7）Partly or entirely remove device 1；
8）The construction of basic other parts is carried out until all terminating.
As shown in Figure 18~Figure 19, horizontal gyrating type excavating gear 2B is level run, and device 2B is by horizontal rotation machine
Frame rack 2-1, chain knife 6, chain knife transmission device 2-2, rotary motive power device 2-3 and ground conveyer 4 form, and rack is equipped with rail
Road, the chain knife 6 equipped with cutting ground on track, chain knife 6 are made of chain 6-1 and the cutter 6-2 being fixed on chain 6-1, chain
Knife transmission device 2-2 is mainly made of chain drive 2-2-1 and sprocket wheel 2-2-2；Rotary motive power device 2-3 is also concrete
Nozzle 5-1, concrete makes its rotation to the pressure at 2 rear portion of device during perfusion.
As shown in Figure 18~Figure 22, chain knife 6 of the foundation bottom with excavation ground excavates device for casting 1 equipped with rotating,
Specific construction method includes the following steps：
1）The rack that is prefabricated in the factory 3 reserves space and the structure of erecting device 1 in the bottom of rack 3；
2）Device 1 is mounted on to the bottom of rack 3；
3）Installation frame 3 and squatting position at the construction field (site), rack 3 include excavating gear；
4）Device 1 is with the synchronous sinking of rack 3；
5）Rack 3 drops to setting height；
6）Swinging excavating gear 2 excavates ground, 5 concrete perfusion of device for casting；
7）Swinging excavating gear 2 turns to setting position, that is, completes the construction of the big base foundation of width to its upper；
8）Partly or entirely remove device 1；
9）The construction of basic other parts is carried out until all terminating.
Claims (8)
1. a kind of rotate excavates device for casting, it is characterized in that excavating device for casting for the rotation of foundation bottom（1）By swinging
Excavating gear (2), rack (3), ground conveying device (4) and device for casting（5）Composition, device（1）Thickness before rotation is less than
Or the thickness equal to basis；During construction, swinging excavating gear（2）It is rotated around the axis of rack (3) or hole and excavates ground, rock simultaneously
Native conveying device（4）The ground excavated is sent to top, device for casting（5）Concrete perfusion generates one after the completion of construction
The bottom of big foundation width to its upper is the component on basis.
2. a kind of rotate according to claim 1 excavates device for casting, it is characterized in that the swinging excavating gear（2）
It is the swinging excavating gear of vertical rotation（2A）, swinging excavating gear（2A）By rack（2A-1）, track, chain knife, chain knife
Transmission device, rotary motive power device composition；Chain knife equipped with cutting ground on track, chain knife is by chain and is fixed on chain
Cutter forms, and chain knife transmission device is mainly made of chain drive and sprocket wheel；Rotary motive power device turns rack during construction
It is dynamic, chain drive drive chain, the operation of chain-driving cutter, cutter excavation ground, ground conveying device（4）It will excavate
Ground be delivered to top, swinging excavating gear（2A）Chain knife is removed after returning back to setting position.
3. a kind of rotate according to claim 1 excavates device for casting, it is characterized in that the swinging excavating gear（2）
It is horizontal gyrating type excavating gear（2B）, swinging excavating gear（2B）By rack（2B-1）, chain knife, chain knife transmission device, return
Power apparatus composition is rotated, rack is equipped with track, the chain knife of cutting ground is housed, chain knife is by chain and is fixed on chain on track
On cutter composition, chain knife transmission device is mainly made of chain drive and sprocket wheel；Rotary motive power device makes machine during construction
Frame rotates, and chain driving device for cutter drive chain, chain-driving cutter is run along track, and cutter excavates ground, ground conveying dress
It puts the ground that will have been excavated and is delivered to top, swinging excavating gear（2B）Chain knife is removed after returning back to setting position.
4. device for casting is excavated in a kind of rotation according to Claims 2 or 3, it is characterized in that the rotary motive power device is
Concrete spray head, concrete is to swinging excavating gear during perfusion（2）The pressure at rear portion makes its rotation.
5. device for casting is excavated in a kind of rotation according to Claims 2 or 3, it is characterized in that the rack（3）It is basis.
6. a kind of rotate according to claim 5 excavates device for casting, it is characterized in that the rack（3）Include during construction
The excavating gear being made of chain knife and driving device（3-2）, rack（3）Bottom is equipped with the track of chain knife operation, installation opportunity frame
（3）The chain knife of bottom operation excavates ground, rack（3）Decline therewith.
7. device for casting is excavated in a kind of rotation according to Claims 2 or 3, it is characterized in that the chain knife is multiple rows of chain
Knife, multiple rows of chain knife carry out excavating or excavating respectively simultaneously as needed.
8. device for casting is excavated in a kind of rotation according to Claims 2 or 3, it is characterized in that the chain of the composition chain knife
It is the chain of broad sense, including crawler belt, rope and flexible-belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066961.1U CN207419572U (en) | 2017-01-18 | 2017-01-18 | A kind of rotate excavates device for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066961.1U CN207419572U (en) | 2017-01-18 | 2017-01-18 | A kind of rotate excavates device for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207419572U true CN207419572U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720066961.1U Expired - Fee Related CN207419572U (en) | 2017-01-18 | 2017-01-18 | A kind of rotate excavates device for casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759597A (en) * | 2017-01-18 | 2017-05-31 | 王燏斌 | One kind is rotated excavates device for casting and its construction method |
-
2017
- 2017-01-18 CN CN201720066961.1U patent/CN207419572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759597A (en) * | 2017-01-18 | 2017-05-31 | 王燏斌 | One kind is rotated excavates device for casting and its construction method |
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Granted publication date: 20180529 |