CN110173273A - A kind of hard rock bilayer self-balancing is stretched cutting arm and cantilever excavator - Google Patents
A kind of hard rock bilayer self-balancing is stretched cutting arm and cantilever excavator Download PDFInfo
- Publication number
- CN110173273A CN110173273A CN201910445739.6A CN201910445739A CN110173273A CN 110173273 A CN110173273 A CN 110173273A CN 201910445739 A CN201910445739 A CN 201910445739A CN 110173273 A CN110173273 A CN 110173273A
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- Prior art keywords
- cutting
- level
- rotary
- hard rock
- swing seat
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
Abstract
The present invention relates to tunneling equipment field, the flexible cutting arm of specifically a kind of hard rock bilayer self-balancing and cantilever excavator, including level-one rotary and lifting component, the level-one rotary and lifting component realize left and right revolution and upper and lower pitching motion with respect to development machine ontology；Two-stage rotary lifting assembly, the two-stage rotary lifting assembly versus primary rotary and lifting component realize left and right revolution and upper and lower pitching motion；Cutting power mechanism, cutting power mechanism are fixedly installed on two-stage rotary elevating mechanism；Cutting beam, for transmitting the power of cutting power mechanism；Cutterhead, the cutterhead pass through the dynamic rotation of cutting sill bolt by cutting power mechanism；The flexible cutting arm of hard rock bilayer self-balancing of the invention and cantilever excavator, realize the disposable cutting of self-balancing of large cross-section tunnel or more, left and right all angles, break the technical barrier for carrying out operation in current constructing tunnel by benching tunneling method, by equipment telephone-moving, improves the cutting drivage efficiency of hard rock driving.
Description
Technical field
The present invention relates to tunneling equipment field, the flexible cutting arm of specifically a kind of hard rock bilayer self-balancing and cantilever
Development machine.
Background technique
As national basis Facilities Construction dynamics further increases and Sichuan-Tibet railway is put into operation, tunnel machine formula is excavated
Occupy sizable specific gravity in engineering construction, wherein being also no lack of the presence of hard rock large cross-section tunnel.Currently, being directed to hard rock tunnel
Construction is mainly carried out using shield machine or hard rock TBM, and this equipment just compares the flexibility of different section tunnel applications
It is poor, and cantilever excavator is stronger to the adaptability in different section tunnel, but is primarily adapted for use in soft rock tunnel, cuts to hard rock
It is poor to cut ability.For the hard rock tunnel of different section, for the adaptability and recycling for improving equipment, using hard rock hob
The flexible cutting arm of Self-balancing is cooperated to solve this challenge, it appears particularly important.
Hard rock, big cross section are two big important difficult points in current tunnel cutting.Because of large cross-section tunnel one in current constructing tunnel
As constructed using benching tunneling method, although excavating work also can be carried out, up/down steps are alternately excavated, and are seriously affected and are applied
Work excavates efficiency and project progress；To hard rock tunnel, TBM flexibility and reusing be not strong, blasting type excavate to environment and
Ecology influence is larger.Therefore, above-mentioned technical problem and defect how to be overcome to become emphasis problem to be solved.
Summary of the invention
Goal of the invention of the invention is to overcome defect described in background technique, thus realize a kind of hard rock bilayer from
Flexible cutting arm and cantilever excavator are balanced, realizes large cross-section tunnel or more, the self-balancing of left and right all angles is disposably cut
It cuts, double-deck self-balancing cutting arm front end of stretching leans out longer, effectively prevents cutting falling rocks caused by equipment and construction personnel
Danger greatly improves equipment and the safety of operating personnel.
For achieving the above object, cutting arm, packet the technical scheme is that a kind of hard rock bilayer self-balancing is stretched
Level-one rotary and lifting component is included, the level-one rotary and lifting component is set to the front end of development machine ontology, and the level-one revolution rises
Part come down to a lower group with respect to development machine ontology realization left and right revolution and upper and lower pitching motion；Two-stage rotary lifting assembly, the two-stage rotary
Component is set on level-one rotary and lifting component, and the two-stage rotary lifting assembly versus primary rotary and lifting component realizes left and right
Revolution and upper and lower pitching motion；Cutting power mechanism, cutting power mechanism are fixedly installed on two-stage rotary elevating mechanism；Cutting
Beam, for transmitting the power of cutting power mechanism；And cutterhead, the cutterhead pass through cutting sill bolt by cutting power mechanism
Dynamic rotation.
Further, the level-one rotary and lifting component includes level-one swing mechanism, cutting frame and cutting frame lifting cylinder,
The level-one swing mechanism revolution is fixedly installed on development machine ontology front end, and cutting frame rear portion is hingedly set to level-one revolution
In mechanism, one end of the cutting frame lifting cylinder is hingedly set on level-one swing mechanism, cutting frame lifting cylinder it is another
End is hingedly set to cutting frame front.
Further, the level-one swing mechanism includes level-one revolving platform and cutting frame angling cylinder, and the cutting frame returns
Turn oil cylinder one end to be fixedly installed on development machine ontology, the cutting frame angling cylinder other end and level-one revolving platform side are hinged, cut
Cut the flexible drive level-one revolving platform revolution movement of frame angling cylinder.
Further, the two-stage rotary lifting assembly includes B grade swivel gear, swing seat, swing seat lifting cylinder,
The B grade swivel gear revolution is fixedly installed on level-one rotary and lifting component, and the swing seat rear portion is hingedly set to second level
On swing mechanism, swing seat lifting cylinder one end is hingedly set on B grade swivel gear, swing seat lifting cylinder it is another
One end is hingedly set to swing seat front.
Further, the B grade swivel gear includes two-stage rotary platform and swing seat angling cylinder, and the swing seat is returned
Turn oil cylinder one end to be fixedly installed on level-one rotary and lifting component, the swing seat angling cylinder other end and two-stage rotary platform side are cut with scissors
It connects, the flexible drive two-stage rotary platform revolution movement of swing seat angling cylinder.
Further, the swing seat includes swinging pedestal and sliding sleeve, the scalable socket setting of sliding sleeve
In in swing seat body, sliding oil cylinder is set between the sliding sleeve and swing pedestal, cutting power mechanism is set to the cunning
On moving sleeve.
Further, the cutting power mechanism includes cutting motor and cutting speed reducer, and cutting motor is subtracted by cutting
Fast machine drives the cut main shaft rotation in cutting beam.
Further, it is provided with hobboing cutter on cutterhead, when hard rock tunnel cutting is excavated, using cantilever excavator cutterhead
Upper arrangement hard rock hob carries out broken rock to rock, according to hobboing cutter rock breaking mechanism, when in running order hard rock hob and scar
Stress is best when in plumbness, efficiency of breaking rock highest, so using level-one revolving platform and two-stage rotary platform, swing seat lifting
Oil cylinder and cutting frame lifting cylinder, Lai Shixian swing seat, cutting frame up and down, the balance of left and right angular adjustment and cutterhead makees
Industry.
In addition, the invention also discloses a kind of cantilever excavator, including development machine ontology, development machine ontology front end are set
It is equipped with the flexible cutting arm of hard rock bilayer self-balancing described in any of the above embodiments.
Further, the development machine body bottom portion is provided with running part, and the development machine ontology front lower portion is provided with
Shovel board portion, the development machine ontology rear side is provided with conveyer, after being additionally provided on the development machine ontology on rear side of the running part
Support.
The working principle of the flexible cutting arm of hard rock bilayer self-balancing of the invention and cantilever excavator:
Level-one revolving platform is fixed on development machine ontology by revolving support, and flexible by cutting frame angling cylinder cuts to adjust
Cut the swaying direction of frame, cutting frame adjusts facing upward and nutation angle for cutting frame by the flexible of cutting frame lifting cylinder；Two
Grade revolving platform is attached by lower section revolving support and cutting frame, and flexible by swing seat angling cylinder realizes second level time
The swing of turntable and the left and right directions of swing seat, swing seat directly control swing seat around swing by the way that swing seat lifting cylinder is flexible
Seat connection pin shaft is faced upward or nutation movement；This cutting arm and development machine use level-one revolving platform and two-stage rotary platform, swing seat
The cooperation of lifting cylinder and cutting frame lifting cylinder, Lai Shixian swing seat, the upper and lower of cutting frame, left and right angular adjustment and cutterhead
Balanced operation, so that cutterhead hobboing cutter and scar in plumbness, is improved efficiency of breaking rock always；The sliding sleeve of swing seat
Cylinder is internal cutting motor, and front end is equipped with cutting speed reducer, and cutting beam is installed on the front end of cutting speed reducer, passes through it
Internal cut main shaft and front end cutterhead forms an overall structure, under the retracted position of sliding oil cylinder, realizes cutterhead
With the extension and contraction control of cutting beam, this Telescopic of equipment cutting arm, during cutting operation, it can be achieved that equipment not
It is dynamic, secondary cutting is carried out to tunnel scar.
Hard rock bilayer self-balancing of the invention stretch cutting arm and cantilever excavator the utility model has the advantages that
Cutting arm and cantilever excavator 1. hard rock bilayer self-balancing of the invention is stretched, overcome hard rock geology cutting problem, from
Balancing flexible cutting arm realizes the disposable cutting of self-balancing of large cross-section tunnel or more, left and right all angles, has broken at present
The technical barrier for carrying out operation in constructing tunnel by benching tunneling method, by equipment telephone-moving, greatly improves hard rock driving
Cutting drivage efficiency.
Cutting arm and cantilever excavator 2. hard rock bilayer self-balancing of the invention is stretched, the double-deck self-balancing are stretched before cutting arm
End leans out longer, effectively prevents the danger caused by equipment and construction personnel of cutting falling rocks, greatly improves equipment and operation
The safety of personnel.
Cutting arm and cantilever excavator 3. hard rock bilayer self-balancing of the invention is stretched, in the retracted position of sliding oil cylinder
Down, it can be achieved that the extension and contraction control of cutterhead and cutting beam, this Telescopic of equipment cutting arm, in the process of cutting operation
In, it can be achieved that equipment is motionless, secondary cutting is carried out to tunnel scar, reduce the number of frequent telephone-moving in tunnel, further mention
High cutting efficiency.
Detailed description of the invention
Fig. 1 is that hard rock bilayer self-balancing of the invention is stretched the knot of the sliding sleeve of cutting arm and cantilever excavator when stretching out
Structure schematic diagram；
Fig. 2 is that the hard rock bilayer self-balancing of the invention structure of the sliding sleeve of cutting arm and cantilever excavator when retracting of stretching is shown
The structural schematic diagram of intention；
Working state schematic representation when Fig. 3 is part rock on cantilever excavator cutting big cross section of the invention；
Fig. 4 is working state schematic representation when cantilever excavator of the invention sweeps side cutting to big height tunnel top；
Fig. 5 is working state schematic representation when cantilever excavator of the invention sweeps side cutting to low height tunnel top；
Fig. 6 is working state schematic representation when cantilever excavator of the invention sweep to tunnel bottom cutting；
One of working condition schematic top plan view when Fig. 7 is cantilever excavator of the invention or so cutting operation；
Two of working condition schematic top plan view when Fig. 8 is cantilever excavator of the invention or so cutting operation.
In figure: 1- level-one rotary and lifting component, 101- level-one swing mechanism, 111- level-one revolving platform, 112- cutting frame return
Turn oil cylinder, 102- cutting frame, 103- cutting frame lifting cylinder, 2- two-stage rotary component, 201- B grade swivel gear, 211- second level
Revolving platform, 212- swing seat angling cylinder, 202- swing seat, 221- swing pedestal, 222- sliding sleeve, 223- sliding oil cylinder,
203- swing seat lifting cylinder, 3- cutting power mechanism, 4- cutting beam, 5- cutterhead, 6- development machine ontology, 7- running part, 8-
Shovel board portion, 9- conveyer, 10- rear support.
Specific embodiment
With reference to the accompanying drawing and by specific embodiment to hard rock bilayer self-balancing of the invention stretch cutting arm and
Cantilever excavator does more detailed description.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Embodiment:
Referring to Fig. 1-2, the flexible cutting arm of the hard rock bilayer self-balancing of the present embodiment, including level-one rotary and lifting component 1, second level are returned
Turn component 2, cutting power mechanism 3, cutting beam 4 and cutterhead 5, the level-one rotary and lifting component 1 is set to development machine ontology 6
Front end, the opposite development machine ontology 6 of described level-one rotary and lifting component 1 realizes left and right revolution and upper and lower pitching motion, described one
Grade rotary and lifting component 1 includes level-one swing mechanism 101, cutting frame 102 and cutting frame lifting cylinder 103, the level-one revolution
The revolution of mechanism 101 is fixedly installed on 6 front end of development machine ontology, and 102 rear portion of cutting frame is hingedly set to level-one swing mechanism
On 101, one end of the cutting frame lifting cylinder 103 is hingedly set on level-one swing mechanism 101, cutting frame lifting cylinder
103 other end is hingedly set to 102 front of cutting frame；
The two-stage rotary component 2 is set on level-one rotary and lifting component 1,2 versus primary of two-stage rotary lifting assembly
Rotary and lifting component 1 realizes that left and right revolution and upper and lower pitching motion, the two-stage rotary lifting assembly 2 include B grade swivel gear
201, swing seat 202, swing seat lifting cylinder 203, the revolution of B grade swivel gear 201 are fixedly installed on cutting frame 102,
202 rear portion of swing seat is hingedly set on B grade swivel gear 201, and described 203 one end of swing seat lifting cylinder is hingedly set
It is placed on B grade swivel gear 201, the other end of swing seat lifting cylinder 203 is hingedly set to 202 front of swing seat；The pendulum
Dynamic seat 202 includes swinging pedestal 221 and sliding sleeve 222, and the scalable socket of sliding sleeve 222 is set to swing pedestal
In 221, sliding oil cylinder 223 is set, cutting power mechanism 3 is set to described between the sliding sleeve 222 and swing pedestal 221
On sliding sleeve 222.
The cutting power mechanism includes cutting motor and cutting speed reducer, and cutting motor is set to the sliding sleeve
In 222, cutting speed reducer is set to 222 front end of sliding sleeve, and cutting motor drives cutting in cutting beam 4 by cutting speed reducer
Cut main shaft rotation；The cutting beam 4 is used to transmit the power of cutting power mechanism；The cutterhead 5 is led to by cutting power mechanism 3
It crosses cutting beam 4 and drives rotation.
The level-one swing mechanism 101 includes level-one revolving platform 111 and cutting frame angling cylinder 112, and the cutting frame returns
Turn 112 one end of oil cylinder to be fixedly installed on development machine ontology 6,112 other end of cutting frame angling cylinder and 111 side of level-one revolving platform
Portion is hinged, flexible 111 revolution of the drive level-one revolving platform movement of cutting frame angling cylinder 112；The B grade swivel gear 201 wraps
Two-stage rotary platform 211 and swing seat angling cylinder 212 are included, described 212 one end of swing seat angling cylinder is fixedly installed on cutting frame
On 102,212 other end of swing seat angling cylinder and 211 side of two-stage rotary platform are hinged, and swing seat angling cylinder 212 stretches
Drive 211 revolution of two-stage rotary platform movement.
In order to more quickly realize broken rock, it is provided with hobboing cutter on cutterhead 5, when hard rock tunnel cutting is excavated, is used
Arrange that hard rock hob carries out broken rock to rock on cantilever excavator cutterhead 5, according to hobboing cutter rock breaking mechanism, when in running order
Hard rock hob when being in plumbness with scar stress it is best, efficiency of breaking rock highest, so using level-one revolving platform 111 and two
Grade revolving platform 211, swing seat lifting cylinder 203 and cutting frame lifting cylinder 103, Lai Shixian swing seat 202, cutting frame 102
Up and down, the balanced operation of left and right angular adjustment and cutterhead 5.
In addition, the present embodiment also discloses a kind of cantilever excavator, including development machine ontology 6, before the development machine ontology 6
End is provided with the flexible cutting arm of above-mentioned hard rock bilayer self-balancing, and 6 bottom of development machine ontology is provided with running part 7, described
6 front lower portion of development machine ontology is provided with shovel board portion 8, and conveyer 9, the running part 7 are provided on rear side of the development machine ontology 6
Rear support 10 is additionally provided on the development machine ontology 6 of rear side.
The course of work of the flexible cutting arm of the hard rock bilayer self-balancing of the present embodiment and cantilever excavator:
Referring to Fig. 3, when needing part rock on cutting big cross section, is adjusted and cut by the elongation of cutting frame lifting cylinder 103
Facing upward for frame 102 is cut, for the positive cutting for guaranteeing hard rock cutting hobboing cutter and scar, swing seat lifting cylinder 203 is shunk, and then is adjusted
The cutting arm of flat swing seat 202 and front end, it is ensured that cutting units and scar perpendicular cut.
Referring to fig. 4-5, when needing to carry out sweeping side cutting to tunnel top, can according to tunnel height size according to Fig. 4 or
Fig. 5 to cutting arm carry out self-balancing status adjustment, Fig. 4 operating condition be suitble to tunnel height it is higher, Fig. 5 operating condition be suitble to tunnel height compared with
It is low, and then guarantee the disposable completion of large cross-section tunnel short transverse cutting work, it avoids in current step method
Inefficiency excavates slow situation.
Referring to Fig. 6, when needing to carry out sweeping bottom cutting to tunnel, self-balancing can be carried out according to state shown in Fig. 6 to equipment
It adjusts, it is ensured that equipment can be suitable for the back chipping operation of tunnel cross-section.
Referring to Fig. 7-8, when equipment carries out left and right cutting operation, using the angling cylinder of I and II swing mechanism to phase
It closes component to be adjusted, the specific environment for being adjusted to be suitable in tunnel works.
Unless otherwise defined, the technical term or scientific term used herein should be in fields of the present invention and has
The ordinary meaning that the personage of general technical ability is understood.As used " first ", " the in present specification and claims
Two " and similar word be not offered as any sequence, quantity or importance, and be used only to distinguish different composition portions
Point.Equally, such as "one" or " one " similar word is used also not necessarily to indicate that quantity limits." comprising " or "comprising" etc.
Similar word mean to occur element or object before the word cover the element for appearing in the word presented hereinafter or object and
It is equivalent, and is not excluded for other elements or object.The similar word such as " connection " or " connected " not now due to physics or
The connection of person's machinery, but may include electrical connection, it is either direct or indirect."upper", "lower", " left side ",
" right side " etc. is only used for indicating relative positional relationship, after the absolute position for being described object changes, then the relative positional relationship
May correspondingly it change.
It is described in detail exemplary embodiment of the invention above in reference to preferred embodiment, however art technology
Personnel it will be appreciated that under the premise of without departing substantially from theory of the present invention, above-mentioned specific embodiment can be made a variety of modifications and
Remodeling, and multiple combinations can be carried out to each technical characteristic proposed by the present invention, structure, and without departing from protection model of the invention
It encloses.
Claims (10)
- The cutting arm 1. a kind of hard rock bilayer self-balancing is stretched, it is characterised in that: includingLevel-one rotary and lifting component, the level-one rotary and lifting component are set to the front end of development machine ontology, the level-one revolution Lifting assembly realizes left and right revolution and upper and lower pitching motion with respect to development machine ontology；Two-stage rotary lifting assembly, the two-stage rotary component are set on level-one rotary and lifting component, the two-stage rotary liter Part versus primary rotary and lifting component of coming down to a lower group realizes left and right revolution and upper and lower pitching motion；Cutting power mechanism, cutting power mechanism are fixedly installed on two-stage rotary elevating mechanism；Cutting beam, for transmitting the power of cutting power mechanism；AndCutterhead, the cutterhead pass through the dynamic rotation of cutting sill bolt by cutting power mechanism.
- The cutting arm 2. hard rock bilayer self-balancing according to claim 1 is stretched, it is characterised in that: the level-one rotary and lifting Component includes level-one swing mechanism, cutting frame and cutting frame lifting cylinder, and the level-one swing mechanism revolution is fixedly installed on pick Into machine ontology front end, cutting frame rear portion is hingedly set on level-one swing mechanism, one end of the cutting frame lifting cylinder It is hingedly set on level-one swing mechanism, the other end of cutting frame lifting cylinder is hingedly set to cutting frame front.
- The cutting arm 3. hard rock bilayer self-balancing according to claim 2 is stretched, it is characterised in that: the level-one swing mechanism Including level-one revolving platform and cutting frame angling cylinder, described cutting frame angling cylinder one end is fixedly installed on development machine ontology, The cutting frame angling cylinder other end and level-one revolving platform side are hinged, and the flexible drive level-one revolving platform of cutting frame angling cylinder returns Rotation is made.
- The cutting arm 4. hard rock bilayer self-balancing according to claim 1 or 2 is stretched, it is characterised in that: the two-stage rotary Lifting assembly includes B grade swivel gear, swing seat, swing seat lifting cylinder, and the B grade swivel gear revolution is fixedly installed on On level-one rotary and lifting component, the swing seat rear portion is hingedly set on B grade swivel gear, the swing seat lifting cylinder One end is hingedly set on B grade swivel gear, and the other end of swing seat lifting cylinder is hingedly set to swing seat front.
- The cutting arm 5. hard rock bilayer self-balancing according to claim 4 is stretched, it is characterised in that: the B grade swivel gear Including two-stage rotary platform and swing seat angling cylinder, swing seat angling cylinder one end is fixedly installed on level-one rotary and lifting group On part, the swing seat angling cylinder other end and two-stage rotary platform side are hinged, and the flexible drive second level of swing seat angling cylinder is returned Rotation of rotary table movement.
- The cutting arm 6. hard rock bilayer self-balancing according to claim 4 is stretched, it is characterised in that: the swing seat includes pendulum Dynamic pedestal and sliding sleeve, the scalable socket of sliding sleeve are set in swing seat body, the sliding sleeve and swing seat Sliding oil cylinder is set between body, and cutting power mechanism is set on the sliding sleeve.
- The cutting arm 7. hard rock bilayer self-balancing according to claim 1 or 6 is stretched, it is characterised in that: the cutting power Mechanism includes cutting motor and cutting speed reducer, and cutting motor drives the cut main shaft rotation in cutting beam by cutting speed reducer Turn.
- The cutting arm 8. hard rock bilayer self-balancing according to claim 7 is stretched, it is characterised in that: rolling is provided on cutterhead Knife.
- 9. a kind of cantilever excavator, including development machine ontology, it is characterised in that: development machine ontology front end is arranged just like right The cutting arm it is required that hard rock bilayer self-balancing described in any one of 1-8 claim is stretched.
- 10. cantilever excavator according to claim 9, it is characterised in that: the development machine body bottom portion is provided with walking Portion, the development machine ontology front lower portion are provided with shovel board portion, are provided with conveyer, the walking on rear side of the development machine ontology Rear support is additionally provided on development machine ontology on rear side of portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910445739.6A CN110173273A (en) | 2019-05-27 | 2019-05-27 | A kind of hard rock bilayer self-balancing is stretched cutting arm and cantilever excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910445739.6A CN110173273A (en) | 2019-05-27 | 2019-05-27 | A kind of hard rock bilayer self-balancing is stretched cutting arm and cantilever excavator |
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| CN110173273A true CN110173273A (en) | 2019-08-27 |
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| CN201910445739.6A Pending CN110173273A (en) | 2019-05-27 | 2019-05-27 | A kind of hard rock bilayer self-balancing is stretched cutting arm and cantilever excavator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997605A (en) * | 2020-08-11 | 2020-11-27 | 中国煤炭科工集团太原研究院有限公司 | Disk undercut cutting mechanism |
| CN112031804A (en) * | 2020-09-27 | 2020-12-04 | 中铁工程装备集团有限公司 | Cantilever excavator and construction method thereof |
| CN116025371A (en) * | 2023-02-24 | 2023-04-28 | 无锡华瀚能源装备科技有限公司 | Small-section rapid tunneling machine for rock roadway |
-
2019
- 2019-05-27 CN CN201910445739.6A patent/CN110173273A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997605A (en) * | 2020-08-11 | 2020-11-27 | 中国煤炭科工集团太原研究院有限公司 | Disk undercut cutting mechanism |
| CN112031804A (en) * | 2020-09-27 | 2020-12-04 | 中铁工程装备集团有限公司 | Cantilever excavator and construction method thereof |
| CN112031804B (en) * | 2020-09-27 | 2022-03-04 | 中铁工程装备集团有限公司 | Cantilever excavator and construction method thereof |
| CN116025371A (en) * | 2023-02-24 | 2023-04-28 | 无锡华瀚能源装备科技有限公司 | Small-section rapid tunneling machine for rock roadway |
| CN116025371B (en) * | 2023-02-24 | 2023-09-29 | 山西潞安环保能源开发股份有限公司 | Small-section rapid tunneling machine for rock roadway |
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