CN111997637A - Shield constructs machine blade disc and shield constructs machine - Google Patents

Shield constructs machine blade disc and shield constructs machine Download PDF

Info

Publication number
CN111997637A
CN111997637A CN202010880418.1A CN202010880418A CN111997637A CN 111997637 A CN111997637 A CN 111997637A CN 202010880418 A CN202010880418 A CN 202010880418A CN 111997637 A CN111997637 A CN 111997637A
Authority
CN
China
Prior art keywords
cutter head
water tank
cutter
assembly
disc
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
Application number
CN202010880418.1A
Other languages
Chinese (zh)
Inventor
王昊
崔东升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Dinglu Construction Co ltd
Original Assignee
Shandong Dinglu Construction Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Dinglu Construction Co ltd filed Critical Shandong Dinglu Construction Co ltd
Priority to CN202010880418.1A priority Critical patent/CN111997637A/en
Publication of CN111997637A publication Critical patent/CN111997637A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention relates to a cutter head for a shield tunneling machine and the shield tunneling machine, wherein the cutter head for the shield tunneling machine comprises a cutter head and a plurality of earth breaking cutter assemblies arranged on the cutter head, and the earth breaking cutter assemblies are axially arranged on the cutter head; the ground breaking cutter assembly comprises an edge cutter, a scraper and a hob assembly, the hob assembly is driven to rotate by a driving mechanism embedded in the cutter head, and a tamping rod is arranged on a rotating shaft at one end, far away from the driving mechanism, of the hob assembly through a transmission assembly; the cutter head for the shield machine further comprises a cleaning mechanism, the cleaning mechanism comprises a cylindrical cavity arranged on the cutter head and a disc-shaped water tank arranged in the cylindrical cavity, a spray head is connected to the side wall of the disc-shaped water tank through a connecting assembly, the disc-shaped water tank is further connected with an adjusting mechanism, and the disc-shaped water tank is arranged in the adjusting mechanism and rotates under the action of the adjusting mechanism, the spray head extends out or retracts under the action of the connecting assembly to form the cylindrical cavity, so that the spray head can be effectively protected.

Description

Shield constructs machine blade disc and shield constructs machine
Technical Field
The invention relates to the technical field of tunnel excavation, in particular to a cutter head for a shield tunneling machine and the shield tunneling machine.
Background
The shield machine is widely applied to projects such as tunnel excavation and the like, has the advantages of high underground excavation speed, high quality, high safety performance, no influence on ground buildings, reduction of land acquisition and removal cost, no influence on overall planning of cities and the like, and is popularized and used in more and more cities with medium sizes.
Due to the complex underground soil condition, the viscous soil layer is easy to gather in a cutter head area to form mud cakes in the construction process of the shield tunneling machine for the viscous soil layer. The mud cake in the cutter head area can cause the phenomenon that although the cutter head can rotate, the shield tunneling machine cannot tunnel.
The current adoption sets up on the blade disc and washes the mechanism, realizes the self-cleaning of blade disc, but current cleaning head unanimously is in the state of exposing, when carrying out tunnel excavation, causes the damage to the cleaning head easily, influences the result of use.
Disclosure of Invention
The invention aims to provide a cutter head for a shield tunneling machine and the shield tunneling machine, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the cutter head for the shield tunneling machine comprises a cutter head and a plurality of ground breaking cutter assemblies arranged on the cutter head, wherein the plurality of ground breaking cutter assemblies are axially arranged on the cutter head;
the ground breaking cutter assembly comprises an edge cutter, a scraper and a hob assembly, the hob assembly is driven to rotate by a driving mechanism embedded in the cutter head, a tamping rod is mounted on a rotating shaft at one end, far away from the driving mechanism, of the hob assembly through a transmission assembly, and the driving mechanism drives the hob assembly to rotate and simultaneously drives the tamping rod to move in a reciprocating manner through the transmission assembly;
a knife edge is fixed on the tamping rod along the rotation direction of the cutter head;
the cutter head for the shield machine further comprises a cleaning mechanism, the cleaning mechanism comprises a cylindrical cavity arranged on the cutter head and a disc-shaped water tank arranged in the cylindrical cavity, a spray head is connected to the side wall of the disc-shaped water tank through a connecting assembly, the disc-shaped water tank is further connected with an adjusting mechanism, and the disc-shaped water tank is arranged in the adjusting mechanism and rotates under the action of the adjusting mechanism, and the spray head stretches out or retracts into the cylindrical cavity under the action of the connecting assembly.
As a further scheme of the invention: the hobbing cutter subassembly including rotate install set up in the installation roller in the embedded groove on the blade disc and install a plurality of hobbing cutters on the installation roller, the pivot one end and the actuating mechanism of installation roller are connected, the other end with drive assembly connects.
As a still further scheme of the invention: one at least two installation rollers are installed in the embedded groove, and the rotating shafts of the installation rollers are connected in a rotating mode through a transmission belt.
As a still further scheme of the invention: the driving mechanism comprises a motor embedded in the cutter head.
As a still further scheme of the invention: the transmission assembly comprises a driving disc which is arranged on the cutter head in a sliding and rotating mode, and a rotating shaft of the driving disc is connected with a rotating shaft of the mounting roller in a rotating mode through a bevel gear set;
the driving disc is provided with a guide slideway towards one side of the tamper, and the guide slideway is in sliding fit with a clamping piece arranged on the tamper through a sliding groove arranged on the guide slideway.
As a still further scheme of the invention: coupling assembling including articulate connecting rod on the dish type water tank lateral wall and with communicating pipe of the inboard intercommunication of dish type water tank, the connecting rod is kept away from the one end of dish type water tank articulates on the shower nozzle, keep away from communicating pipe the one end of dish type water tank with the inboard intercommunication of shower nozzle.
As a still further scheme of the invention: the shower nozzle comprises a cylindrical cavity, and is characterized in that a guide frame is further mounted on the inner side of the cylindrical cavity, the guide frame is arranged in an annular structure, a through groove for the shower nozzle to penetrate through is formed in the guide frame, and the shower nozzle is in sliding fit with the through groove.
The shield machine comprises the cutter head for the shield machine.
Compared with the prior art, the invention has the beneficial effects that: the soil breaking device is novel in design, the soil is broken through the arranged side cutter and the hob assembly, the broken soil is scraped out through the scraper, the soil breaking treatment is achieved, the arranged tamping rod moves in a reciprocating mode under the action of the transmission assembly, so that the soil is tamped, the side cutter and the hob assembly can conveniently break the soil, the arranged disc-shaped water tank is communicated with the spray head, the hob assembly can be cleaned through the spray head, the influence of a large amount of soil on the hob assembly can be effectively prevented, meanwhile, the disc-shaped water tank is connected with the spray head through the connecting assembly, the spray head can protrude or retract into the cylindrical cavity, the spray head is effectively protected, and the soil breaking device is high in practicability.
Drawings
Fig. 1 is a schematic structural diagram of a cutter head for a shield tunneling machine.
Fig. 2 is a schematic view of the connection state of a tamping rod and a transmission assembly in a cutter head for a shield tunneling machine.
Fig. 3 is an enlarged view of a structure at a in fig. 1.
Fig. 4 is a schematic structural diagram of a hob assembly in a cutter head for a shield machine.
In the figure: 1-cutterhead, 2-edge cutter, 3-scraper, 4-motor, 5-transmission belt, 6-hob, 7-mounting roller, 8-bevel gear set, 9-driving disc, 10-tamping bar, 11-cutting edge, 12-cylindrical cavity, 13-guide frame, 14-spray head, 15-connecting rod, 16-communicating pipe, 17-disc type water tank, 18-guide slideway and 19-clamping piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 4, in an embodiment of the present invention, a cutter head for a shield machine includes a cutter head 1 and a plurality of ground breaking cutter assemblies mounted on the cutter head 1, where the plurality of ground breaking cutter assemblies are axially disposed on the cutter head 1; the earth breaking cutter assembly comprises an edge cutter 2, a scraper 3 and a hob assembly, the hob assembly is driven to rotate by a driving mechanism embedded in the cutter head 1, a tamping rod 10 is mounted on a rotating shaft at one end, far away from the driving mechanism, of the hob assembly through a transmission assembly, and the driving mechanism drives the hob assembly to rotate and simultaneously drives the tamping rod 10 to reciprocate through the transmission assembly; a knife edge 11 is fixed on the tamping rod 10 along the rotation direction of the cutter head 1; shield constructs machine blade disc and still includes clean mechanism, clean mechanism is including installing cylindrical cavity 12 and setting on the blade disc 1 are in disc type water tank 17 in cylindrical cavity 12, be connected with shower nozzle 14 through coupling assembling on disc type water tank 17's the lateral wall, still be connected with adjustment mechanism on the disc type water tank 17, work as disc type water tank 17 is in when rotating under the adjustment mechanism effect, shower nozzle 14 stretches out or withdraws under coupling assembling's effect cylindrical cavity 12.
In the embodiment of the invention, the soil is crushed by the arranged side cutter 2 and the hob assembly, the crushed soil is scraped by the scraper 3, the soil crushing treatment is realized, the arranged tamping rod 10 reciprocates under the action of the transmission assembly so as to tamp the soil, the side cutter 2 and the hob assembly can conveniently crush the soil, the arranged disc-shaped water tank 17 is communicated with the spray head 14, the hob assembly can be cleaned by the spray head 14, the influence of a large amount of soil adhered to the hob assembly on the use effect can be effectively prevented, meanwhile, the disc-shaped water tank 17 is connected with the spray head 14 through the connecting assembly, the spray head 14 can protrude or retract into the cylindrical cavity 12, the spray head 14 can be effectively protected, and the practicability is strong.
In the embodiment of the invention, a plurality of conical teeth are fixed at one end of the tamper 10 away from the transmission assembly, and the conical teeth are arranged to facilitate the tamper 10 to crush soil.
In the embodiment of the present invention, it is understood that the adjusting mechanism may be connected to the disk-shaped water tank 17 by a driving motor, and is used for driving the disk-shaped water tank 17 to rotate and adjust, of course, the disk-shaped water tank 17 is further communicated with a water supply assembly, and is used for filling water into the disk-shaped water tank 17, and simultaneously, high pressure is generated in the disk-shaped water tank 17, so that water is sprayed out through the spray head 14, and a specific water supply assembly may be used by matching a water pump with an external water source or a storage water tank, and may be specifically selected according to requirements, which is not specifically limited in this application.
As an embodiment of the present invention, the hob assembly includes an installation roller 7 rotatably installed in an embedded groove provided on the cutter head 1, and a plurality of hobs 6 installed on the installation roller 7, one end of a rotating shaft of the installation roller 7 is connected to a driving mechanism, and the other end is connected to the transmission assembly.
In the embodiment of the invention, the installation roller 7 is driven to rotate by the arranged driving mechanism, and when the installation roller 7 rotates, the installation roller drives the plurality of rolling cutters 6 to rotate, so that the soil breaking treatment is realized, and the transmission assembly is driven to move at the same time, wherein the plurality of rolling cutters 6 are arranged on the installation roller 7 at equal intervals.
In one embodiment of the invention, at least two mounting rollers 7 are arranged in one embedded groove, and the rotating shafts of two adjacent mounting rollers 7 are rotatably connected through a transmission belt 5.
As an embodiment of the invention, the drive mechanism comprises a motor 4 embedded in the cutterhead 1.
As an embodiment of the present invention, the transmission assembly includes a driving disk 9 which is slidably mounted on the cutter head 1, and a rotating shaft of the driving disk 9 is rotatably connected with a rotating shaft of the mounting roller 7 through a bevel gear set 8;
the side of the driving disc 9 facing the tamper bar 10 is provided with a guide slideway 18, and the guide slideway 18 is in sliding fit with a clamping piece 19 arranged on the tamper bar 10 through a sliding groove arranged on the guide slideway 18.
In the embodiment of the invention, the driving disc 9 is driven to rotate by the bevel gear set 8 when the mounting roller 7 rotates, and the reciprocating motion of the tamper bar 10 is realized by the guide slide way 18 which is arranged on the driving disc 9 and matched with the clamping piece 19 when the driving disc 9 rotates.
In the embodiment of the present invention, it should be noted that the guide slideway 18 is in a curved sliding slope shape, that is, the upper end surfaces of the guide slideway 18 are not on the same horizontal plane, and when the guide slideway 18 rotates along with the driving disk 9, the ram 10 reciprocates along the direction parallel to the axial direction of the driving disk 9.
In the embodiment of the present invention, the bevel gear set 8 is composed of two bevel gears perpendicular to each other and engaged with each other to perform a force steering transmission function, and specifically, a transmission ratio of the bevel gear set 8 is not specifically limited in this application and can be selected according to a requirement.
As an embodiment of the present invention, the connection assembly includes a connection rod 15 hinged to a side wall of the disk-shaped water tank 17 and a communication pipe 16 communicated with an inner side of the disk-shaped water tank 17, an end of the connection rod 15 away from the disk-shaped water tank 17 is hinged to the spray head 14, and an end of the communication pipe 16 away from the disk-shaped water tank 17 is communicated with the inner side of the spray head 14.
In the embodiment of the present invention, the position adjustment of the head 14 is achieved by the action of the connecting rod 15 when the disk type tank 17 is rotated, and it can be understood that the distance of the head 14 from the disk type tank 17 is changed when the position of the head 14 is adjusted, and therefore the communicating pipe 16 specifically employs a bellows.
In the embodiment of the present invention, the spray head 14 is provided in plurality, and the plurality of spray heads 14 are circumferentially installed.
As an embodiment of the present invention, a guide frame 13 is further installed on the inner side of the cylindrical cavity 12, the guide frame 13 is arranged in an annular structure, a through groove for penetrating the spray head 14 is arranged on the guide frame 13, and the spray head 14 is in sliding fit with the through groove.
In the embodiment of the invention, the spray head 14 is limited by the arranged guide frame 13, so that the spray head 14 performs linear motion under the action of the connecting rod 15, and the spray head 14 can be effectively prevented from deviating in the adjusting process.
The invention further provides a shield tunneling machine which comprises the cutter head for the shield tunneling machine.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The cutter head for the shield machine is characterized by comprising a cutter head (1) and a plurality of ground breaking cutter assemblies arranged on the cutter head (1), wherein the plurality of ground breaking cutter assemblies are axially arranged on the cutter head (1);
the soil breaking cutter assembly comprises an edge cutter (2), a scraper (3) and a hob assembly, the hob assembly is driven to rotate by a driving mechanism embedded in the cutter head (1), a tamping rod (10) is mounted on a rotating shaft at one end, far away from the driving mechanism, of the hob assembly through a transmission assembly, and the driving mechanism drives the hob assembly to rotate and simultaneously drives the tamping rod (10) to move in a reciprocating manner through the transmission assembly;
a knife edge (11) is fixed on the tamping rod (10) along the rotation direction of the cutter head (1);
shield constructs machine blade disc and still includes clean mechanism, clean mechanism is including installing cylindrical cavity (12) and setting on blade disc (1) are in disc type water tank (17) in cylindrical cavity (12), be connected with shower nozzle (14) through coupling assembling on the lateral wall of disc type water tank (17), still be connected with adjustment mechanism on disc type water tank (17), work as disc type water tank (17) are in when rotating under the adjustment mechanism effect, shower nozzle (14) are stretched out or are withdrawed under coupling assembling's effect cylindrical cavity (12).
2. The cutter head for the shield tunneling machine according to claim 1, wherein the hob assembly comprises an installation roller (7) rotatably installed in an embedded groove formed in the cutter head (1) and a plurality of hobs (6) installed on the installation roller (7), one end of a rotating shaft of the installation roller (7) is connected with a driving mechanism, and the other end of the rotating shaft is connected with the transmission assembly.
3. The cutter head for the shield tunneling machine according to claim 2, wherein at least two of the installation rollers (7) are installed in one of the embedded grooves, and rotating shafts of two adjacent installation rollers (7) are rotatably connected through a transmission belt (5).
4. A cutterhead for a shield tunneling machine according to claim 3, wherein said drive mechanism includes a motor (4) embedded within the cutterhead (1).
5. The cutter head for the shield tunneling machine according to claim 2, wherein the transmission assembly comprises a driving disc (9) which is slidably and rotatably mounted on the cutter head (1), and a rotating shaft of the driving disc (9) is rotatably connected with a rotating shaft of the mounting roller (7) through a bevel gear set (8);
the drive plate (9) is provided with a guide slideway (18) towards one side of the tamper (10), and the guide slideway (18) is in sliding fit with a clamping piece (19) arranged on the tamper (10) through a sliding groove arranged on the guide slideway (18).
6. The cutter head for the shield tunneling machine according to claim 1, wherein the connecting assembly comprises a connecting rod (15) hinged to the side wall of the disk-shaped water tank (17) and a communicating pipe (16) communicated with the inner side of the disk-shaped water tank (17), one end, away from the disk-shaped water tank (17), of the connecting rod (15) is hinged to the spray head (14), and one end, away from the disk-shaped water tank (17), of the communicating pipe (16) is communicated with the inner side of the spray head (14).
7. The cutter head for the shield tunneling machine according to claim 6, wherein a guide frame (13) is further installed on the inner side of the cylindrical cavity (12), the guide frame (13) is arranged in an annular structure, a through groove for the nozzle (14) to penetrate through is formed in the guide frame (13), and the nozzle (14) is in sliding fit with the through groove.
8. A shield tunneling machine, characterized in that it comprises a cutterhead for a shield tunneling machine according to any one of claims 1-7.
CN202010880418.1A 2020-08-27 2020-08-27 Shield constructs machine blade disc and shield constructs machine Pending CN111997637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010880418.1A CN111997637A (en) 2020-08-27 2020-08-27 Shield constructs machine blade disc and shield constructs machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010880418.1A CN111997637A (en) 2020-08-27 2020-08-27 Shield constructs machine blade disc and shield constructs machine

Publications (1)

Publication Number Publication Date
CN111997637A true CN111997637A (en) 2020-11-27

Family

ID=73471736

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010880418.1A Pending CN111997637A (en) 2020-08-27 2020-08-27 Shield constructs machine blade disc and shield constructs machine

Country Status (1)

Country Link
CN (1) CN111997637A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112343609A (en) * 2020-12-26 2021-02-09 中铁工程装备集团有限公司 Hollow TBM cutter head, pilot tunnel expanding excavation TBM for inclined shaft and construction method
CN113638390A (en) * 2021-07-24 2021-11-12 王光伟 Construction engineering quality detects uses demolition ware

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3396029B2 (en) * 2000-11-02 2003-04-14 鹿島建設株式会社 Underground junction type shield machine
CN206376866U (en) * 2016-08-31 2017-08-04 辽宁恒耐科技有限公司 A kind of shield cutter hardfacing equipment
CN207847638U (en) * 2017-12-13 2018-09-11 常熟重型机械制造有限公司 A kind of shield machine cutterhead
CN207847639U (en) * 2017-12-13 2018-09-11 常熟重型机械制造有限公司 A kind of two-way cutterhead of shield machine
CN208184742U (en) * 2018-05-04 2018-12-04 邢安洲 A kind of shield machine cutterhead with self-cleaning function
CN109184712A (en) * 2018-09-06 2019-01-11 西安科技大学 A kind of shield machine impact hobboing cutter certainly and the method using its impact grinding scar
CN111173530A (en) * 2020-03-06 2020-05-19 浙江福仑德重工有限公司 Coaxial double-ring cutter head for shield machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3396029B2 (en) * 2000-11-02 2003-04-14 鹿島建設株式会社 Underground junction type shield machine
CN206376866U (en) * 2016-08-31 2017-08-04 辽宁恒耐科技有限公司 A kind of shield cutter hardfacing equipment
CN207847638U (en) * 2017-12-13 2018-09-11 常熟重型机械制造有限公司 A kind of shield machine cutterhead
CN207847639U (en) * 2017-12-13 2018-09-11 常熟重型机械制造有限公司 A kind of two-way cutterhead of shield machine
CN208184742U (en) * 2018-05-04 2018-12-04 邢安洲 A kind of shield machine cutterhead with self-cleaning function
CN109184712A (en) * 2018-09-06 2019-01-11 西安科技大学 A kind of shield machine impact hobboing cutter certainly and the method using its impact grinding scar
CN111173530A (en) * 2020-03-06 2020-05-19 浙江福仑德重工有限公司 Coaxial double-ring cutter head for shield machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112343609A (en) * 2020-12-26 2021-02-09 中铁工程装备集团有限公司 Hollow TBM cutter head, pilot tunnel expanding excavation TBM for inclined shaft and construction method
CN112343609B (en) * 2020-12-26 2022-04-29 中铁工程装备集团有限公司 Hollow TBM cutter head, pilot tunnel expanding excavation TBM for inclined shaft and construction method
CN113638390A (en) * 2021-07-24 2021-11-12 王光伟 Construction engineering quality detects uses demolition ware

Similar Documents

Publication Publication Date Title
CN111997637A (en) Shield constructs machine blade disc and shield constructs machine
KR100991297B1 (en) Apparatus for excavating sediment in closed conduit
CN113172051A (en) Hydraulic engineering pipeline equipment of removing obstacles
CN203675546U (en) Vertical rotary tiller
CN219210958U (en) Water conservancy and hydropower engineering pipeline silt cleaning device
CN110792122B (en) Milling device and double-wheel slot milling machine
CN212936588U (en) Farmland ditching machine of adjustable operation width
CN212487109U (en) Automatic blockage-clearing rotary cultivator
CN220952810U (en) Roadbed compacting device
CN211314215U (en) Rotatable tearing cutter of shield machine
CN210226125U (en) Rotary tillage and ditching system of full-automatic transplanting combined machine
CN213847491U (en) Saline and alkaline land soil loosening device convenient to adjust
CN216381405U (en) Intelligent supporting system of heading machine
CN217733675U (en) Highway construction flattening device
CN212876560U (en) Antifouling agricultural mechanical device
CN221167752U (en) Small-size suitable ground level and smooth car
CN214035669U (en) Full-automatic shield constructs machine knife plate frame
CN211128987U (en) Weeding device for agricultural facilities based on gobi environment
CN219260643U (en) Protective rolling machine
CN114100210B (en) Hydraulic reciprocating type high-thrust mud scraper
CN214919179U (en) Pollute soil restoration and administer device
CN213296256U (en) Hydraulic engineering is with trash rack that prevents stifled
CN216238725U (en) Soil rotating machine for highway engineering
CN219698400U (en) Multifunctional ridging machine
CN216894400U (en) Efficient shield constructs quick-witted mud cake detection device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20201127