CN2905911Y - High-speed slot milling machine - Google Patents
High-speed slot milling machine Download PDFInfo
- Publication number
- CN2905911Y CN2905911Y CN 200520008836 CN200520008836U CN2905911Y CN 2905911 Y CN2905911 Y CN 2905911Y CN 200520008836 CN200520008836 CN 200520008836 CN 200520008836 U CN200520008836 U CN 200520008836U CN 2905911 Y CN2905911 Y CN 2905911Y
- Authority
- CN
- China
- Prior art keywords
- milling head
- cutter spindle
- mill
- milling cutter
- milling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Gear Transmission (AREA)
Abstract
A high-speed milling cutter comprises a mill head assembly, a frame, a power mechanism and a movement mechanism. The mill head assembly comprises multiple mill head units that are placed horizontally and the structure of each mill head unit is: one milling cutter axle that is mounted in the front and rear bearing seats of the gas tank, and a cylindrical gear is mounted on the milling cutter axle between the front and rear bearings. The rear bearing seat is spontaneously supported in the jet water tank; the center of the milling cutter axle is joined with the jet water tank by a jet water pipe and a disc milling cutter is mounted on the protruding end of the milling cutter axle, and the jet water pipe of the milling cutter axle is joined with the jet water hole on the end side of the milling cutter. The milling cutter axles of various milling head units are placed in parallel with each other on a vertical plane or horizontal plane and the cylindrical gears of the various adjacent milling cutter axles are matched and meshed with each other. The disc gear of the upper-most milling head cutter is connected to the power mechanism. The utility model can mill such hard earth layers as frozen soil, weathered rocks and rocks and features high speed and high efficiency. It is suitable for use in such various industrial and agricultural operations as the laying of underground pipelines in municipal facilities, the laying of industrial pipelines, the laying of cables, the construction of embedded tunnels, sludge of rivers and afforestation as well as various kinds of earthwork.
Description
Technical field
The utility model relates to the construction equipment at land excavation groove.
Background technology
In worker, agricultural production, often need carry out the operation of ground trench digging, fluting, prior art generally uses cable operated excavator or manpower to excavate.Excavator ditching cost height, and can only excavate the groove of broad deeply.It is low that manpower excavates time-consuming rate, and powerless to rock land face and frozen soil.We once developed the equipment of water jets boring in the past, but should not be used for the ground fluting.In order to overcome the deficiencies in the prior art, we have developed with water jets and drill bit and have been combined into main motion and are " high-speed ditcher " of feed motion to advance forward, can cut firm hard formations such as frozen soil, decomposed rock and rock, drilling tool keeps the vertical ground state in the operation, can adapt to various geological environments.Thereafter we continue development, the speed of developing " high-speed ditching machine " of the present utility model faster again.
Summary of the invention
The purpose of this utility model provides a kind of high-speed ditching machine, can cut firm hard formations such as frozen soil, decomposed rock and rock, can adapt to various geological environments, and operating speed is fast, the efficient height.Can milling go out dark and narrow gully, little to the destruction on ground, the cost of excavation, landfill is lower.The scope of application is extensive, the various operations that can be applicable to municipal network of underground laying, industrial pipeline laying, cable laying, construct underwater dam, clear up workers such as riverway sludge, afforestation, agriculture field, and various ground works.
The purpose of this utility model is achieved in that
A kind of high-speed ditching machine, it has milling head assembly, frame, actuating unit and motion;
The milling head assembly is made of the many groups of milling head unit of laterally placing, the structure of each milling head unit is: a cutter spindle, be contained in fuel tank before, in the rear bearing block, before in this bearing support, the rear bearing supporting, before this, be fixed with a roller gear on the cutter spindle between the rear bearing, the oil seal circle respectively is equipped with in the outer end of this front and back bearings, this rear bearing block is bearing on the jet flow cistern simultaneously, waterstop ring is equipped with in the oil seal circle outside of this rear bearing block, this cutter spindle center has the jet water pipe to be communicated with jet flow cistern, this jet flow cistern is communicated with the peripheral hardware water source, be fixed with a circular peripheral-mill on the overhanging end of this cutter spindle, this circular peripheral-mill has the end face tooth, the jet water hole on this circular peripheral-mill end face of the jet cross current of this cutter spindle;
The combining structure of each milling head unit is: the cutter spindle of each milling head unit is placed in a perpendicular or the horizontal plane parallel to each other, a milling cutter thickness staggers before and after the circular peripheral-mill of adjacent two cutter spindles, adjacent discs milling cutter profile has the part that overlaps each other, and the roller gear of each adjacent cutter spindle aligns engagement mutually;
The roller gear of going up most cutter spindle of this milling head assembly connects actuating unit.
Power source transmission one bevel gear pair of described actuating unit, perpendicular, the transverse axis of this bevel gear pair are installed in the bearing support of gear-box, install a roller gear on this transverse axis, and this roller gear is meshed with the roller gear of going up most cutter spindle of milling head assembly.
Roller gear on the cutter spindle of the most last milling head unit of described milling head assembly is the drive bevel gear of an affixed bevel gear pair simultaneously, install a circular peripheral-mill on the overhanging end that is contained in the driven wheel of differential axle in the bearing support of this bevel gear pair, this circular peripheral-mill has the end face tooth.
The circular peripheral-mill that is contained on the cutter spindle of described milling head assembly has circumferential cutting edge and face cutting edge, is respectively having the jet water hole to be communicated with the central blind hole of cutter spindle on the outer circumference surface that circumferential cutting edge is arranged of this milling cutter with on the outer face that face cutting edge is arranged.
The circular peripheral-mill of installing on the described cutter spindle overhanging end is detachable fixedlying connected of changing with cutter spindle.
The vertical pivot of described bevel gear pair and top power transmission shaft are hinged to integral body with gimbal joints, and described top power transmission shaft connects actuating unit; The vertical pivot of described bevel gear pair and top power transmission shaft are installed in respectively in the bearing support of the last stator of frame, following stator, this time stator has the connecting mode elasticity of certain lifting amount to be connected in frame to go up stator relatively, power transmission shaft peripheral equipment between this upper and lower stator is provided with and impels the milling head assembly to keep vertical coalignment, and its structure is: cylindrical compression spring suit that 1 to 8 downward stator is exerted pressure or the periphery that is distributed in power transmission shaft.
The periphery of the spring coalignment of installing between described upper and lower stator also is equiped with the damper coalignment, its structure is: 2 to 6 oil damping damper two ends that are made of oil cylinder piston respectively are articulated in upper and lower stator, and be distributed in the periphery of power transmission shaft, the extended line of the axial line of this each oil damping damper becomes an oblique angle with the drilling tool axial line.
The power source of described actuating unit is motor, hydraulic motor, a kind of in the motor.
Described motion be the rubber wheel or in orbit the walking metallic wheel, this motion is connected in frame.
The utility model has following actively useful effect:
This ditching machine under the lubricated and fluidization of water jets with the main motion of the face cutter assembly milling that laterally is arranged in parallel of a plurality of unit, and the feed motion of advancing forward, carry out the roughly the same milling action of lathe on the face of land, finish the open channels operation, it not only can cut ordinary soil, and can cut firm hard formations such as frozen soil, decomposed rock and rock, finish mechanical the working continuously of can not accomplishing of other trench digging.
2. this machine is with very high rotational speed milling cutter, thereby increases trench digging speed, strengthens the ability to work under abominable geological conditions.
3. the milling cutter tool of this machine is interchangeable, can adapt to different the trench digging width and the degree of depth.
4. water cavity of this machine and gear train are back-to-back settings, thereby can reduce the temperature rise of gear train.
5. this machine is avoided the long drill pipe high-speed structures, and vibrations are diminished, and prolongs equipment life.
6. this machine is provided with spring alignment and the alignment of oil damping damper two-stage coalignment altogether, and the work of also remaining valid in the time of can making the milling head assembly run into different geology resistance reduces peak power, reduce vibrations, add stiff stability, can adapt to various geological environments, guarantee the operation high-quality.
7. this machine adds the integration of operation that milling cutter rotates with water jets, thereby operating speed is fast, the efficient height.
8. the vertical milling cutter assembly of arranging of this machine can cut out dark and narrow gully, this also be other excavation machinery can not accomplish, it can cut out the true-to-size groove according to actual needs, compare with the domatic ditch that cable operated excavator digs out, it is little to the destruction on ground, and the cost of excavation, landfill is lower.
9. the horizontal milling cutter assembly of this machine can carry out horizontal milling.For example when transplanting, groove around cutting out with the milling cutter assembly of vertically arranging earlier carries out horizontal milling with horizontal milling cutter assembly again under tree root, just whole tree can be removed.
10. this machine can cut out the groove of different shapes such as linear, shaped form, circle, closed ring, polygon.
11. this machine scope of application is extensive, it can be applicable to the laying of municipal network of underground such as cable, optical cable, water pipe, blow-off pipe, gas pipe, and the laying of industrial pipeline such as oil pipe, natural gas tube, construct the various operations of workers such as underwater dam, cleaning riverway sludge, afforestation, agriculture field, and various ground works.With the tree planting is example, and this machine can be set turn up with the frozen soil around the tree root together with whole in the winter time fast, transplants, and has the not available function of other common apparatus at present.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the partial enlarged drawing of milling head unit among Fig. 1;
Fig. 4 is the milling head assembly among Fig. 1, the structural representation of embodiment that actuating unit combines with coalignment, is the embodiment that each milling head unit is vertically arranged;
The same Fig. 4 of Fig. 5 is the embodiment of each milling head unit horizontal arrangement;
Fig. 6 is the A-A sectional view of Fig. 5;
The same Fig. 4 of Fig. 7 is another embodiment;
Fig. 8 is the right view of the milling cutter assembly of Fig. 7 middle and lower part.
The specific embodiment
Accompanying drawing number
1. milling head assembly 11. milling head unit
101. cutter spindle 102. front-end bearing pedestals 103. rear bearing blocks
104. roller gear 105. oil seal circles 106. oil seal circles
107. waterstop ring 108. jet water pipes 109. circular peripheral-mills
110. jet water hole 111. circumferential cutting edge 112. face cutting edges
113. blind hole 114. circular peripheral-mills of cutter spindle are installed
2. frame
201. fuel tank 202. water tanks
203. 204. times stator 205. bearing supports of last stator
206. oil sealing 207. bearing supports 208. oil sealings
209. oil sealing 210. gear-boxes 211. water jets inlet
3. actuating unit
301. bevel gear pair 302. vertical pivots 303. transverse axis
304. roller gear 305. power transmission shafts 306. gimbal joints
307. belt pulley 308. bearing supports 309. middle part power transmission shafts
310. bevel gear pair
4. coalignment
401. compression spring 402.. oil damping damper
Please refer to Fig. 1, Fig. 4, Fig. 5, the utility model are a kind of high-speed ditching machines, and it has milling head assembly 1, frame 2, actuating unit 3 and motion;
Please refer to Fig. 3, Fig. 6, milling head assembly 1 is made of the many groups of milling head unit of laterally placing, the structure of each milling head unit 11 is: a cutter spindle 101, be contained in fuel tank 201 before, rear bearing block 102, in 103, before in this bearing support, the rear bearing supporting, before this, be fixed with a roller gear 104 on the cutter spindle between the rear bearing, before being somebody's turn to do, oil seal circle 105 (two) respectively is equipped with in the outer end of rear bearing, 106 (two), this rear bearing block is bearing on the jet flow cistern 202 simultaneously, waterstop ring 107 (two) is equipped with in oil seal circle 106 outsides of this rear bearing block 103, these cutter spindle 101 centers have jet water pipe 108 to be communicated with jet flow cistern 202, this jet flow cistern 202 has water jets inlet 211 to be communicated with the peripheral hardware water source, be fixed with a circular peripheral-mill 109 on the overhanging end of this cutter spindle 101, this circular peripheral-mill has the end face tooth, the jet water hole 110 that the jet water pipe 108 of this cutter spindle 101 is communicated with on these circular peripheral-mill 109 end faces;
Please refer to Fig. 1, Fig. 4, Fig. 5, the combining structure of each milling head unit 11 is: the cutter spindle 101 of each milling head unit is placed in a perpendicular (see figure 1) or the horizontal plane (see figure 5) parallel to each other, a milling cutter thickness staggers before and after the circular peripheral-mill of adjacent two cutter spindles, adjacent discs milling cutter profile has the part that overlaps each other, the diameter of this adjacent discs milling cutter can be inequality, and the roller gear 104 of each adjacent cutter spindle aligns engagement mutually;
Please refer to Fig. 1, Fig. 3, Fig. 6, the power source of actuating unit 3 (for example motor) transmission one bevel gear pair 301, perpendicular, the transverse axis 302,303 of this bevel gear pair are installed in the bearing support of gear-box 210, install a roller gear 304 on this transverse axis 303, this roller gear 304 is meshed with the roller gear of going up most cutter spindle 104 of milling head assembly 1.
Please refer to Fig. 7, Fig. 8, roller gear on the cutter spindle of the most last milling head unit of described milling head assembly is the drive bevel gear of an affixed bevel gear pair 310 simultaneously, install a circular peripheral-mill 114 on the overhanging end that is contained in the driven wheel of differential axle in the bearing support of this bevel gear pair, this circular peripheral-mill has the end face tooth.
Please refer to Fig. 3, Fig. 6, the circular peripheral-mill 109 and 114 that is contained on the cutter spindle 101 of described milling head assembly 1 has circumferential cutting edge 111 and face cutting edge 112, on the outer circumference surface of the circumferential cutting edge 111 of having of this milling cutter 109, and have on the outer face of face cutting edge 112, respectively there is jet water hole 110 to be communicated with the central blind hole 113 of cutter spindle.In the embodiment shown in fig. 1, to be circular arc excessive in the junction of this circumferential cutting edge 111 and face cutting edge 112.
The circular peripheral-mill of installing on described cutter spindle 101 overhanging ends 109 is detachable fixedlying connected of changing with cutter spindle 101; The described circular peripheral-mill 114 that is contained on the driven wheel of differential axle is detachable fixedlying connected of changing with bevel gear shaft.For example for being threaded, cutter is interchangeable, can adapt to different the trench digging width and the degree of depth.
Please refer to Fig. 4, the vertical pivot 302 and the top power transmission shaft 305 of described bevel gear pair 301 are hinged to integral body with gimbal joints 306, and described top power transmission shaft 305 connects actuating unit; The vertical pivot 302 of described bevel gear pair 301 and top power transmission shaft 305 are installed in respectively in the bearing support of the last stator 203 of frame 2, following stator 204, this time stator 204 has the connecting mode elasticity of certain lifting amount to be connected in frame 2 to go up stator 203 relatively, (in the embodiment shown in fig. 3, described resilient connection realizes by oil damping damper 402.) power transmission shaft 305 peripheral equipments between this upper and lower stator 203,204 are provided with and impel the milling head assembly to keep vertical coalignment 4, its structure is: 1 to 8 cylindrical compression spring that downward stator is exerted pressure 401 suit or be distributed in the periphery of power transmission shaft 305.In the embodiment shown in fig. 4, the periphery of the spring coalignment of installing also is equiped with the damper coalignment between described upper and lower stator 203,204, its structure is: 2 to 6 oil damping damper 402 two ends that are made of oil cylinder piston respectively are articulated in upper and lower stator 203,204, and be distributed in the periphery of power transmission shaft 305, the extended line of the axial line of this each oil damping damper 402 becomes an oblique angle with power transmission shaft 305 axial lines.The coalignment that this oil damping damper 402 constitutes is arranged at the periphery of the coalignment of spring 401 formations.Described oil damping reducer 402 can use the automobile absorber in the prior art.The structure of described actuating unit 3 is: the top power transmission shaft 305 that is contained in stator 203 bearing supports 205 connects motor with belt pulley 307, be set with bearing support 308 at top power transmission shaft 305 cylindricals, on this bearing support 205, there is oil sealing 206 lower end, 207 pairs of upper bearing (metal)s are realized sealing, these top power transmission shaft 305 lower ends with cross gimbal joints 306 member hinges in the upper end of middle part power transmission shaft 309, this middle part power transmission shaft 309 screw rod 310 that is spirally connected, this screw rod 310 is contained in down in the bearing support 207 of stator, on this bearing support 207, there is oil sealing 208 lower end, the 209 pairs of lower bearings are realized sealing, the be spirally connected vertical pivot 302 of bevel gear pair of this screw rod 310.
During enforcement, the power source of described actuating unit 3 is a kind of in motor, hydraulic motor, the motor.During enforcement, described motion is the rubber wheel or the metallic wheel (accompanying drawing does not show) of walking in orbit, and this wheel connects frame 2, and for example rack support is on four wheels, and these four wheels divide two rows to be placed on the ground for the treatment of ditching groove both sides.The type of drive of this wheel is that machine driving or manpower are carried out, and this mechanical drive mode can use existing branch art.
During enforcement, described milling head unit vertically (vertical ground) is arranged, or two kinds of schemes of milling head unit horizontal (parallel ground) arrangement, can driven gear shaft position rotation 90 degree of actuating unit bevel gear pair be realized by a slotter; Also can use two slotters that are respectively vertical, horizontal.
Claims (9)
1. high-speed ditching machine, it has milling head assembly, frame, actuating unit and motion, it is characterized in that:
The milling head assembly is made of the many groups of milling head unit of laterally placing, the structure of each milling head unit is: a cutter spindle, be contained in fuel tank before, in the rear bearing block, before in this bearing support, the rear bearing supporting, before this, be fixed with a roller gear on the cutter spindle between the rear bearing, before being somebody's turn to do, the oil seal circle respectively is equipped with in the outer end of rear bearing, this rear bearing block is bearing on the jet flow cistern simultaneously, waterstop ring is equipped with in the oil seal circle outside of this rear bearing block, this cutter spindle center has the jet water pipe to be communicated with jet flow cistern, this jet flow cistern is communicated with the peripheral hardware water source, be fixed with a circular peripheral-mill on the overhanging end of this cutter spindle, this circular peripheral-mill has the end face tooth, the jet water hole on this circular peripheral-mill end face of the jet cross current of this cutter spindle;
The combining structure of each milling head unit is: the cutter spindle of each milling head unit is placed in a perpendicular or the horizontal plane parallel to each other, a milling cutter thickness staggers before and after the circular peripheral-mill of adjacent two cutter spindles, adjacent discs milling cutter profile has the part that overlaps each other, and the roller gear of each adjacent cutter spindle aligns engagement mutually;
The roller gear of going up most cutter spindle of this milling head assembly connects actuating unit.
2. high-speed ditching machine as claimed in claim 1, it is characterized in that: power source transmission one bevel gear pair of described actuating unit, perpendicular, the transverse axis of this bevel gear pair are installed in the bearing support of gear-box, install a roller gear on this transverse axis, this roller gear is meshed with the roller gear of going up most cutter spindle of milling head assembly.
3. high-speed ditching machine as claimed in claim 1, it is characterized in that: the roller gear on the cutter spindle of the most last milling head unit of described milling head assembly is the drive bevel gear of affixed-bevel gear pair simultaneously, install a circular peripheral-mill on the overhanging end that is contained in the driven wheel of differential axle in the bearing support of this bevel gear pair, this circular peripheral-mill has the end face tooth.
4. as claim l or 3 described high-speed ditching machines, it is characterized in that: the circular peripheral-mill that is contained on the cutter spindle of described milling head assembly has circumferential cutting edge and face cutting edge, is respectively having the jet water hole to be communicated with the central blind hole of cutter spindle on the outer circumference surface that circumferential cutting edge is arranged of this milling cutter with on the outer face that face cutting edge is arranged.
5. high-speed ditching machine as claimed in claim 1 is characterized in that: the circular peripheral-mill of installing on the described cutter spindle overhanging end is detachable fixedlying connected of changing with cutter spindle.
6. high-speed ditching machine as claimed in claim 2 is characterized in that: the vertical pivot of the bevel gear pair of described actuating unit and top power transmission shaft are hinged to integral body with gimbal joints, and described top power transmission shaft connects actuating unit; The vertical pivot of described bevel gear pair and top power transmission shaft are installed in respectively in the bearing support of the last stator of frame, following stator, this time stator has the connecting mode elasticity of certain lifting amount to be connected in frame to go up stator relatively, power transmission shaft peripheral equipment between this upper and lower stator is provided with and impels the milling head assembly to keep vertical coalignment, and its structure is: cylindrical compression spring suit that 1 to 8 downward stator is exerted pressure or the periphery that is distributed in power transmission shaft.
7. as claim 2 or 6 described high-speed ditching machines, it is characterized in that: the periphery of the spring coalignment of installing between the upper and lower stator of described actuating unit also is equiped with the damper coalignment, its structure is: 2 to 6 oil damping damper two ends that are made of oil cylinder piston respectively are articulated in upper and lower stator, and be distributed in the periphery of power transmission shaft, the extended line of the axial line of this each oil damping damper becomes an oblique angle with the drilling tool axial line.
8. high-speed ditching machine as claimed in claim 2 is characterized in that: the power source of described actuating unit is a kind of in motor, hydraulic motor, the motor.
9. high-speed ditching machine as claimed in claim 1 is characterized in that: described motion be the rubber wheel or in orbit the walking metallic wheel, this motion is connected in frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008836 CN2905911Y (en) | 2005-03-21 | 2005-03-21 | High-speed slot milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008836 CN2905911Y (en) | 2005-03-21 | 2005-03-21 | High-speed slot milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2905911Y true CN2905911Y (en) | 2007-05-30 |
Family
ID=38114546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520008836 Expired - Fee Related CN2905911Y (en) | 2005-03-21 | 2005-03-21 | High-speed slot milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2905911Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306325A (en) * | 2013-06-09 | 2013-09-18 | 胜利油田胜利工程建设（集团）有限责任公司 | Grooving method and grooving device for narrow and shallow engineering pit groove |
| CN101658950B (en) * | 2009-09-04 | 2015-06-10 | 简东灿 | Milling machine |
| CN104912148A (en) * | 2015-06-04 | 2015-09-16 | 重庆广播电视大学 | Excavator bucket and excavator |
| CN111926871A (en) * | 2020-09-18 | 2020-11-13 | 山东通广电子有限公司 | Multifunctional electric power engineering vehicle |
-
2005
- 2005-03-21 CN CN 200520008836 patent/CN2905911Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101658950B (en) * | 2009-09-04 | 2015-06-10 | 简东灿 | Milling machine |
| CN103306325A (en) * | 2013-06-09 | 2013-09-18 | 胜利油田胜利工程建设（集团）有限责任公司 | Grooving method and grooving device for narrow and shallow engineering pit groove |
| CN104912148A (en) * | 2015-06-04 | 2015-09-16 | 重庆广播电视大学 | Excavator bucket and excavator |
| CN111926871A (en) * | 2020-09-18 | 2020-11-13 | 山东通广电子有限公司 | Multifunctional electric power engineering vehicle |
| CN111926871B (en) * | 2020-09-18 | 2022-02-18 | 山东通广电子有限公司 | Multifunctional electric power engineering vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102277886B (en) | Tunnelling and excavating integrated machine cutting head | |
| CN108180260B (en) | Rotary drilling rig and power head torque increasing device thereof | |
| CN204212700U (en) | Drill bit in a kind of conduit jacking | |
| CN102003145B (en) | Hole driven type horizontal directional drilling reverse circulation hole dilating drill | |
| CN2905911Y (en) | High-speed slot milling machine | |
| CN104265998A (en) | Rotary excavating and mud discharging device of push bench | |
| CN100582392C (en) | High-speed ditching machine | |
| CN113863408B (en) | Trenching assembly of chain trencher | |
| CN114776227A (en) | Oil drilling equipment based on geology automatic adjustment rotational speed | |
| CN204187119U (en) | A kind of push-bench revolves and digs mud discharging device | |
| CN108612529A (en) | A kind of adjustable coal planer plough mechanism | |
| CN204984426U (en) | Shield tunnel entry driving machine | |
| CN100564709C (en) | High-speed ditcher | |
| CN2791119Y (en) | High-speed ditching machine | |
| CN211900463U (en) | Non-excavation pipe laying drilling machine | |
| JP2019002166A (en) | Cutting and crushing system, cutting and crushing method, reconstruction propelling method | |
| KR100598677B1 (en) | Propulsion apparatus of pipe tunnel for underground laying | |
| CN105625297A (en) | Construction technology of underground diaphragm wall | |
| CN204532355U (en) | Device is dug in milling | |
| CN219492198U (en) | Drill bit power head structure and square pile drill bit | |
| CN219547891U (en) | Seabed machinery cutting ditcher | |
| CN220957112U (en) | Non-excavation pipe jacking construction equipment | |
| CN114991655B (en) | Deep large-diameter annular well drilling system and working method | |
| CN211922775U (en) | Construction trencher | |
| CN215211214U (en) | Sprocket drive grooving mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |