CN109537660A - Bar shaped deep trouth foundation excavation equipment - Google Patents
Bar shaped deep trouth foundation excavation equipment Download PDFInfo
- Publication number
- CN109537660A CN109537660A CN201910007645.0A CN201910007645A CN109537660A CN 109537660 A CN109537660 A CN 109537660A CN 201910007645 A CN201910007645 A CN 201910007645A CN 109537660 A CN109537660 A CN 109537660A
- Authority
- CN
- China
- Prior art keywords
- driving wheel
- bar shaped
- cutter
- chain type
- deep trouth
- 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.)
- Pending
Links
- 238000009412 basement excavation Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 abstract description 8
- 239000002689 soil Substances 0.000 abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003892 spreading Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
Abstract
The invention discloses a kind of bar shaped deep trouth foundation excavation equipment, the chain type cutter including successively hingedly forming ring seal by multiple cutter heads, the driving wheel for driving chain type cutter loopy moving, and the reverse wheel for the commutation of chain type cutter；Driving wheel is driven by driving motor；Driving wheel and reverse wheel are located on support rod, for being tensioned the chain type cutter；The cutter head outer end is formed with blade, and cutter head inner end has the engaging structure being meshed with the driving wheel and reverse wheel.Using technical solution of the present invention, the present invention provides a kind of bar shaped deep trouth foundation excavation equipment, successively hingedly form the chain type cutter of ring seal by multiple cutter heads by driving, the blade on cutter head is set to cut the soil body, narrow strip groove can be directly excavated out, digging process is simple, and speed of application is fast.
Description
Technical field
The present invention relates to the deeply narrow foundation excavation fields of bar shaped, and in particular to a kind of bar shaped deep trouth foundation excavation equipment.
Background technique
The deeply narrow basis of bar shaped is mainly used for constructing diaphram wall, guarded drainage facility etc..Traditional infrastructure excavation generallys use
Artificial or excavator is completed, and also has a method excavated by drilling machine and try connection again.But use traditional digging mode grooving
When, it needs that corresponding supporting construction is arranged according to excavation situation, it is desirable that excavation groove width is wider, is backfilled, is entirely opened again later
Digging process is cumbersome, and speed of application is slow, and at high cost.When there is the soil body (dam) to need local route repair, sealing or reinforce, need to construct
Thickness is less than the high barricade of 50mm, and narrow bar shaped deep trouth cannot be directly excavated out using traditional foundation excavation mode.
Summary of the invention
To solve the problems, such as that above-mentioned traditional digging mode cannot directly excavate out narrow strip groove, the present invention provides one kind
Bar shaped deep trouth foundation excavation equipment is successively hingedly formed the chain type cutter of ring seal by multiple cutter heads by driving, makes cutter head
On blade cut the soil body, can directly excavate out narrow strip groove, digging process is simple, and speed of application is fast.
Technical scheme is as follows:
A kind of bar shaped deep trouth foundation excavation equipment, including successively hingedly forming the chain type cutter of ring seal by multiple cutter heads, using
In the driving wheel of driving chain type cutter loopy moving, and for the reverse wheel of chain type cutter commutation；Driving wheel is by driving motor
Driving；Driving wheel and reverse wheel are located on support rod, for being tensioned the chain type cutter；The cutter head outer end is formed with blade,
Cutter head inner end has the engaging structure being meshed with the driving wheel and reverse wheel.
Using technical solution of the present invention, chain type cutter is driven to rotate by engaging structure using driving motor, driving wheel,
Reverse wheel is matched with driving wheel, makes chain type cutter cycle rotation, chain type cutter during rotation, cut by the blade of cutter head outer end
The soil body is cut, can directly excavate out narrow strip groove, grooving process is simply, conveniently.
Preferably, the driving wheel is located at post upper, and support rod lower end is set there are two the reverse wheel, driving wheel and
Two reverse wheels are arranged in isosceles triangle.In digging process, cutter head elder generation and ground face contact below two bottom rollers,
It plays a supporting role, chain type cutter can be prevented to swing, stability is good.
Preferably, the front and rear sides of the cutter head be respectively equipped with can mutually matched first groove and boss, two phases
Cooperated between adjacent cutter head by first groove and boss, and the articulated shaft by wearing is hinged.Just the production and installation of cutter head.
Preferably, the blade is protruded forward in cutting groove depth direction by bit body, in notch width direction in inside
The arc of recess.Convenient for the hack under discharge cutting.
Preferably, the engaging structure includes the hemispherical protuberances being formed on the cutter head, and is formed in the drive
On driving wheel and reverse wheel, and the second groove matched with hemispherical protuberances.Driving wheel and reverse wheel pass through mutually matched half
Hemisphere jut is engaged with the second groove with chain type cutter, and average ratios are accurate, reliable operation, and transmitting power is big, overloads energy
Power is strong.
Preferably, the support rod is in the structure of extensible, the ring flange including the body of rod and set on body of rod both ends.Pass through method
Blue disk extended support bar, it is easy to operate, it is connected firmly；And it can be full according to cutting depth extended support bar and chain type cutter
The excavation demand of sufficient different depth.
Preferably, the support rod is located on boom hoisting；Boom hoisting includes vertically movable movable plate；The drive
Driving wheel is fixed on movable plate；The support rod and reverse wheel can be extended downwardly across boom hoisting.It is lifted by movable plate
Support rod is sling support rod using movable plate, according to demand spreading chain type cutter and support rod after the completion of primary excavate.
Its structure is simple, convenient for operation.
Beneficial effects of the present invention are that can dig out narrow strip groove, and can be according to groove depth situation spreading chain type cutter
And support rod, meet the excavation demand of different depth；The operation is stable, structure is simple, convenient for operation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural schematic diagram of chain type cutter.
Fig. 4 is the right side structural representation of cutter head in Fig. 3.
Fig. 5 is the structural schematic diagram of chain type cutter and roller group contact position.
Fig. 6 is the structural schematic diagram that two support rods are connected.
In figure, chain type cutter 1, cutter head 1.1, boss 1.2, the first groove 1.3, driving wheel 2, reverse wheel 3, driving motor 4,
Support rod 5, the body of rod 5.1, ring flange 5.2, articulated shaft 6, blade 7, hemispherical protuberances 8, the second groove 9, pedestal 10, avoid holes
10.1, movable plate 11, hydraulic cylinder 12.
Specific embodiment
As shown in Figures 1 to 6, a kind of bar shaped deep trouth foundation excavation equipment, including successively hingedly formed by multiple cutter heads 1.1
The chain type cutter 1 of ring seal, the driving wheel 2 for driving 1 loopy moving of chain type cutter, and commutate for chain type cutter 1
Reverse wheel 3；Driving wheel 2 is driven by driving motor 4；Driving wheel 2 and reverse wheel 3 are located on support rod 5, for being tensioned the chain
Formula cutter 1；1.1 outer end of cutter head is formed with blade 7, and 1.1 inner end of cutter head has nibbles with the driving wheel 2 and 3 phase of reverse wheel
The engaging structure of conjunction.
Wherein, the driving wheel 2 is located at 5 upper end of support rod, and 5 lower end of support rod sets that there are two the reverse wheel 3, driving wheels
2 and two reverse wheels 3 in isosceles triangle arrange.The front and rear sides of the cutter head 1.1 are respectively equipped with can mutually matched
One groove 1.3 and boss 1.2 are cooperated by first groove 1.3 with boss 1.2 between two adjacent tool tips 1.1, and by wearing
If articulated shaft 6 it is hinged.The blade 7 is protruded forward in cutting groove depth direction by 1.1 ontology of cutter head, is in notch width direction
The arc being recessed inwardly.
Stable to guarantee, engaging structure includes the hemispherical protuberances 8 being formed on the cutter head 1.1, and is formed
On the driving wheel 2 and reverse wheel 3, and the second groove 9 matched with hemispherical protuberances 8.And support rod 5 is in extensible
Structure, the ring flange 5.2 including the body of rod 5.1 and set on 5.1 both ends of the body of rod.
For convenient for operation, the support rod 5 is located on boom hoisting；Boom hoisting includes pedestal 10 and is equipped on pedestal 10
The movable plate 11 of side；The hydraulic cylinder 12 for driving movable plate 11 vertically movable is equipped between pedestal 10 and movable plate 11；Pedestal
The avoid holes 10.1 for passing through for reverse wheel 3 are offered on 10；The driving wheel 2 is fixed on movable plate 11；The activity
Plate 11, which is able to drive support rod 5 and reverse wheel 3, can pass through avoid holes 10.1, move down.The driving motor 4 is fixed on work
On movable plate 11.Two reverse wheels 3 are mounted on the two sides of 5 lower end of support rod by connection frame.
Using technical solution of the present invention, sink to slotting by chain type cutter 1, groove width can be excavated not on the soil body (dam)
Slot greater than 50mm, and spreading chain type cutter 1 and support rod 5, adjusting groove depth can meet different according to the actual situation
Excavation demand.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (7)
1. a kind of bar shaped deep trouth foundation excavation equipment, which is characterized in that including successively hingedly forming annular by multiple cutter heads (1.1)
Closed chain type cutter (1), the driving wheel (2) for driving chain type cutter (1) loopy moving, and it is used for chain type cutter (1)
The reverse wheel (3) of commutation；Driving wheel (2) is driven by driving motor (4)；Driving wheel (2) and reverse wheel (3) are located at support rod (5)
On, for being tensioned the chain type cutter (1)；Cutter head (1.1) outer end is formed with blade (7), cutter head (1.1) inner end have with
The engaging structure that the driving wheel (2) and reverse wheel (3) are meshed.
2. bar shaped deep trouth foundation excavation equipment according to claim 1, which is characterized in that the driving wheel (2) is located at branch
Strut (5) upper end, support rod (5) lower end are set there are two the reverse wheel (3), and driving wheel (2) and two reverse wheels (3) are in isosceles
Triangular arrangement.
3. bar shaped deep trouth foundation excavation equipment according to claim 1 or 2, which is characterized in that before the cutter head (1.1)
Afterwards two sides be respectively equipped with can mutually matched first groove (1.3) and boss (1.2), lead between two adjacent tool tips (1.1)
It crosses first groove (1.3) and boss (1.2) cooperates, and the articulated shaft by wearing (6) is hinged.
4. bar shaped deep trouth foundation excavation equipment according to claim 3, which is characterized in that the blade (7) is in grooving depth
Degree direction is protruded forward by cutter head (1.1) ontology, is in the arc being recessed inwardly in notch width direction.
5. bar shaped deep trouth foundation excavation equipment according to claim 3, which is characterized in that the engaging structure includes being formed
Hemispherical protuberances (8) on the cutter head (1.1), and being formed on the driving wheel (2) and reverse wheel (3), and with half
The second groove (9) that ball bumps (8) match.
6. bar shaped deep trouth foundation excavation equipment according to claim 1, which is characterized in that the support rod (5) is in that can connect
Long structure, including the body of rod (5.1) and set on the ring flange (5.2) at the body of rod (5.1) both ends.
7. bar shaped deep trouth foundation excavation equipment according to claim 6, which is characterized in that the support rod (5) has been located at
On device for hoisting；Boom hoisting includes vertically movable movable plate (11)；The driving wheel (2) is fixed on movable plate (11)；
The support rod (5) and reverse wheel (3) can be extended downwardly across boom hoisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007645.0A CN109537660A (en) | 2019-01-04 | 2019-01-04 | Bar shaped deep trouth foundation excavation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007645.0A CN109537660A (en) | 2019-01-04 | 2019-01-04 | Bar shaped deep trouth foundation excavation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109537660A true CN109537660A (en) | 2019-03-29 |
Family
ID=65834146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910007645.0A Pending CN109537660A (en) | 2019-01-04 | 2019-01-04 | Bar shaped deep trouth foundation excavation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109537660A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405541A (en) * | 2019-09-04 | 2019-11-05 | 重庆长征重工有限责任公司 | A kind of cutting abrasion adjustment device |
| CN113898351A (en) * | 2021-09-23 | 2022-01-07 | 西南交通大学 | Special-shaped tunnel simulation excavating device |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526119Y (en) * | 2001-12-09 | 2002-12-18 | 张庆英 | Device for processing multi-head worm gear and spiral bevel gear |
| JP2004225343A (en) * | 2003-01-22 | 2004-08-12 | Raito Kogyo Co Ltd | Chain cutter for underground continuous wall excavator |
| JP2007070941A (en) * | 2005-09-08 | 2007-03-22 | Kobelco Cranes Co Ltd | Digger and continuous underground groove excavator |
| CN201056712Y (en) * | 2007-07-25 | 2008-05-07 | 刘延滨 | Cutting and ditching machine for dust stone material |
| US20090031591A1 (en) * | 2007-07-30 | 2009-02-05 | Vladimir Anatol Shreider | Apparatus and a method for constructing an underground continuous filling wall and stratum |
| CN201649066U (en) * | 2010-04-30 | 2010-11-24 | 杭州大通建筑工程有限公司 | Excavating device for construction of ditch type cutting and deep mixing soil-cement underground continuous wall |
| CN201932380U (en) * | 2011-01-04 | 2011-08-17 | 王庆禄 | Automatic packaging machine for sterilized tableware |
| CN202108064U (en) * | 2011-05-26 | 2012-01-11 | 上海工程机械厂有限公司 | Vertical slot milling machine |
| CN102518394A (en) * | 2011-12-01 | 2012-06-27 | 中国煤炭科工集团太原研究院 | Hydraulic driving two-stage feeding dovetail groove guiding asymmetrically-arranged anchor drilling machine |
| CN204837083U (en) * | 2015-09-01 | 2015-12-09 | 洪德河 | Miniature combine |
| CN206107314U (en) * | 2016-10-27 | 2017-04-19 | 厦门理工学院 | Express delivery transport vechicle |
| CN106930340A (en) * | 2017-04-22 | 2017-07-07 | 刘莉萍 | Hole milling equipment |
| CN107310049A (en) * | 2017-07-07 | 2017-11-03 | 厦门致力金刚石科技股份有限公司 | A kind of diamond chain saw and forming method |
| CN207047833U (en) * | 2017-01-18 | 2018-02-27 | 王燏斌 | A kind of groover for subterranean wall construction |
| CN207127969U (en) * | 2017-09-19 | 2018-03-23 | 河南伊赛牛肉股份有限公司 | A kind of novel efficient beef cutting machine |
| CN207143923U (en) * | 2017-07-07 | 2018-03-27 | 正宇科创（武汉）岩土工程有限公司 | A kind of digging rounding machine cutter for the construction of TRD engineering methods |
| CN207331796U (en) * | 2017-07-13 | 2018-05-08 | 上海广大基础工程有限公司 | A kind of saw chain formula slotter driving chain and milling cutter combination |
| CN207469341U (en) * | 2017-07-13 | 2018-06-08 | 上海广大基础工程有限公司 | A kind of saw chain formula slotter cutting mechanism |
| CN108457139A (en) * | 2018-05-27 | 2018-08-28 | 内蒙古工业大学 | A kind of railway Qing Zha mechanisms of adjustable face length |
| CN108532382A (en) * | 2018-05-27 | 2018-09-14 | 内蒙古工业大学 | A kind of clear tiny fragments of stone, coal, etc. machine of small-sized railway |
| CN207987912U (en) * | 2017-12-26 | 2018-10-19 | 中建三局集团有限公司 | A kind of synchronous cutting casting concrete continuous walls construction equipment |
| CN108868645A (en) * | 2017-05-12 | 2018-11-23 | 周兆弟 | Stake machine chain broaching with integrated cutting teeth |
| CN209353391U (en) * | 2019-01-04 | 2019-09-06 | 重庆长征重工有限责任公司 | Bar shaped deep trouth foundation excavation equipment |
-
2019
- 2019-01-04 CN CN201910007645.0A patent/CN109537660A/en active Pending
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526119Y (en) * | 2001-12-09 | 2002-12-18 | 张庆英 | Device for processing multi-head worm gear and spiral bevel gear |
| JP2004225343A (en) * | 2003-01-22 | 2004-08-12 | Raito Kogyo Co Ltd | Chain cutter for underground continuous wall excavator |
| JP2007070941A (en) * | 2005-09-08 | 2007-03-22 | Kobelco Cranes Co Ltd | Digger and continuous underground groove excavator |
| CN201056712Y (en) * | 2007-07-25 | 2008-05-07 | 刘延滨 | Cutting and ditching machine for dust stone material |
| US20090031591A1 (en) * | 2007-07-30 | 2009-02-05 | Vladimir Anatol Shreider | Apparatus and a method for constructing an underground continuous filling wall and stratum |
| CN201649066U (en) * | 2010-04-30 | 2010-11-24 | 杭州大通建筑工程有限公司 | Excavating device for construction of ditch type cutting and deep mixing soil-cement underground continuous wall |
| CN201932380U (en) * | 2011-01-04 | 2011-08-17 | 王庆禄 | Automatic packaging machine for sterilized tableware |
| CN202108064U (en) * | 2011-05-26 | 2012-01-11 | 上海工程机械厂有限公司 | Vertical slot milling machine |
| CN102518394A (en) * | 2011-12-01 | 2012-06-27 | 中国煤炭科工集团太原研究院 | Hydraulic driving two-stage feeding dovetail groove guiding asymmetrically-arranged anchor drilling machine |
| CN204837083U (en) * | 2015-09-01 | 2015-12-09 | 洪德河 | Miniature combine |
| CN206107314U (en) * | 2016-10-27 | 2017-04-19 | 厦门理工学院 | Express delivery transport vechicle |
| CN207047833U (en) * | 2017-01-18 | 2018-02-27 | 王燏斌 | A kind of groover for subterranean wall construction |
| CN106930340A (en) * | 2017-04-22 | 2017-07-07 | 刘莉萍 | Hole milling equipment |
| CN108868645A (en) * | 2017-05-12 | 2018-11-23 | 周兆弟 | Stake machine chain broaching with integrated cutting teeth |
| CN107310049A (en) * | 2017-07-07 | 2017-11-03 | 厦门致力金刚石科技股份有限公司 | A kind of diamond chain saw and forming method |
| CN207143923U (en) * | 2017-07-07 | 2018-03-27 | 正宇科创（武汉）岩土工程有限公司 | A kind of digging rounding machine cutter for the construction of TRD engineering methods |
| CN207331796U (en) * | 2017-07-13 | 2018-05-08 | 上海广大基础工程有限公司 | A kind of saw chain formula slotter driving chain and milling cutter combination |
| CN207469341U (en) * | 2017-07-13 | 2018-06-08 | 上海广大基础工程有限公司 | A kind of saw chain formula slotter cutting mechanism |
| CN207127969U (en) * | 2017-09-19 | 2018-03-23 | 河南伊赛牛肉股份有限公司 | A kind of novel efficient beef cutting machine |
| CN207987912U (en) * | 2017-12-26 | 2018-10-19 | 中建三局集团有限公司 | A kind of synchronous cutting casting concrete continuous walls construction equipment |
| CN108457139A (en) * | 2018-05-27 | 2018-08-28 | 内蒙古工业大学 | A kind of railway Qing Zha mechanisms of adjustable face length |
| CN108532382A (en) * | 2018-05-27 | 2018-09-14 | 内蒙古工业大学 | A kind of clear tiny fragments of stone, coal, etc. machine of small-sized railway |
| CN209353391U (en) * | 2019-01-04 | 2019-09-06 | 重庆长征重工有限责任公司 | Bar shaped deep trouth foundation excavation equipment |
Non-Patent Citations (1)
| Title |
|---|
| 王世彤: "《常用机械零件及机构图册》", vol. 200, 高等教育出版社, pages: 149 - 150 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405541A (en) * | 2019-09-04 | 2019-11-05 | 重庆长征重工有限责任公司 | A kind of cutting abrasion adjustment device |
| CN113898351A (en) * | 2021-09-23 | 2022-01-07 | 西南交通大学 | Special-shaped tunnel simulation excavating device |
| CN113898351B (en) * | 2021-09-23 | 2022-07-01 | 西南交通大学 | Special-shaped tunnel simulation excavation device and use method thereof |
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