CN115095331A - Novel highway and railway dual-purpose tunnel construction operation vehicle - Google Patents
Novel highway and railway dual-purpose tunnel construction operation vehicle Download PDFInfo
- Publication number
- CN115095331A CN115095331A CN202210913297.5A CN202210913297A CN115095331A CN 115095331 A CN115095331 A CN 115095331A CN 202210913297 A CN202210913297 A CN 202210913297A CN 115095331 A CN115095331 A CN 115095331A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- highway
- railway
- dual
- lifting platform
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000005553 drilling Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- 230000036541 health Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000007562 laser obscuration time method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/024—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting having means for adapting to inclined terrain; having means for stabilizing the vehicle while drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/122—Working or loading platforms
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The utility model provides a novel dual-purpose tunnel construction operation car of highway railway mainly includes: the device comprises an automobile chassis, a hydraulic support leg assembly, a highway-railway dual-purpose switching device, a rotary telescopic lifting platform, a hydraulic lifting column grabbing device, a drilling device and a scissor type manual lifting platform. The rotary telescopic lifting platform can move longitudinally, lift in the vertical direction and rotate, the lifting problem in the tunnel construction process is solved, the longitudinal movement reduces the starting and stopping times of the operation vehicle, and the construction efficiency is greatly improved. The highway and railway dual-purpose switching device meets the requirement of dual purposes of highways and railways of the operation vehicle, and the application range of the operation vehicle is greatly improved. The drilling device adopts the six-axis manipulator controlled by the programmable control system to drill, so that the precision is effectively improved, and the construction efficiency is accelerated. The cooperation of hydraulic davit grabbing device and the manual elevating platform of scissors fork formula is used for making the davit installation become convenient and fast.
Description
Technical Field
The invention relates to the field of tunnel construction equipment, in particular to the field of highway and railway dual-purpose tunnel drilling and suspension column installation construction.
Background
In the railway construction of rapid development in China, accessories such as overhead contact system suspension posts, cables and the like in a tunnel are generally installed by drilling holes in the wall of the tunnel, and due to the fact that the number of tunnel holes is large, the precision requirement is high, the construction difficulty is high and the like. These problems will greatly reduce the efficiency of railway construction in our country. At present, the construction of drilling a tunnel is carried out by generally constructing a steel pipe scaffold operation platform in China. The construction method has the problems of low efficiency, high labor intensity, high danger, great harm to the health of constructors and the like. The invention designs a highway-railway dual-purpose operation vehicle for drilling in a railway tunnel and installing a suspension post, which can realize automatic drilling and also can realize suspension post installation. Through the dual-purpose auto-change over device of highway railway of simple structure, applicable in highway and railway construction, solved the consuming time problem of transition, improved tunnel efficiency of construction greatly. Compared with the traditional manual operation or single-function automatic equipment, the equipment provided by the invention has high integration, greatly reduces the construction difficulty of tunnel drilling and suspension column installation, and ensures the construction safety.
Disclosure of Invention
The invention provides a novel highway and railway dual-purpose tunnel construction operation vehicle, which mainly comprises: the device comprises an automobile chassis, a hydraulic support leg assembly, a highway and railway dual-purpose switching device, a rotary telescopic lifting platform, a hydraulic lifting column grabbing device, a drilling device, a scissor-fork type manual lifting platform, a hydraulic control system and an electrical control system.
The automobile chassis comprises a driver cab, a modified flat trailer and a driving rubber wheel; a group of hydraulic leg assemblies is respectively arranged at the front and the rear of the modified flat trailer, a rotary telescopic lifting platform is arranged on the modified flat trailer, and a highway-railway dual-purpose switching device is arranged at the bottom of the modified flat trailer; the rotary telescopic lifting platform mainly comprises a sliding track, a sliding base, a telescopic upright post, a multi-stage telescopic hydraulic cylinder and a working platform; the hydraulic support leg assembly, the highway-railway dual-purpose switching device, the rotary telescopic lifting platform, the hydraulic lifting column grabbing device and the scissor-type manual lifting platform are all controlled by a hydraulic control system in a cab.
Preferably, the operation vehicle needs to meet the requirements of dual purposes of highway and railway, the main body of the operation vehicle is an automobile chassis, the operation vehicle comprises a driver cab, a modified flat trailer and a driving rubber wheel, and a highway and railway dual-purpose switching device is installed on a bottom cross beam of the modified flat trailer.
Preferably, the highway-railway dual-purpose switching device mainly comprises rubber wheels, steel wheels, a hydraulic cylinder and a box body.
More preferably, the lifting of the switching device for both highway and railway is controlled by a hydraulic cylinder, so that the state switching can be conveniently and quickly realized. When the hydraulic cylinder extends out, the switching device for the highway and the railway falls down, the steel wheel is in contact with the rail surface, the automobile chassis is lifted, and the driving rubber wheel is in an idling state. In order to avoid power waste caused by idle running of the driving rubber wheel after the automobile chassis is lifted, the rubber wheel is in close contact with the driving rubber wheel, power is transmitted to the steel wheel from the rubber wheel through an internal gear set of the road-rail dual-purpose switching device, and the operation vehicle moves forward under the driving of the steel wheel.
Preferably, a rotary telescopic lifting platform is installed on the refitted flat trailer of the automobile chassis, and the rotary telescopic lifting platform mainly comprises a sliding track, a sliding base, a telescopic upright post, a multi-stage telescopic hydraulic cylinder and a working platform.
Preferably, the sliding rail is arranged on the modified flat trailer, a plurality of rollers are arranged below the sliding base, and the sliding base slides on the sliding rail under the action of the multistage telescopic hydraulic cylinder, so that the rotary telescopic lifting platform is driven to longitudinally move along the direction of the trailer.
Preferably, the telescopic upright post is connected with the sliding base through a worm gear, the hydraulic motor drives the screw rod to rotate, and the worm gear drives the telescopic upright post to rotate relative to the sliding base.
Preferably, the work platform is installed on the telescopic upright post, and the telescopic upright post is internally provided with another group of multi-stage telescopic hydraulic cylinders which can drive the work platform to lift in the vertical direction.
Preferably, the working platform is provided with a hydraulic lifting column gripping device, a drilling device and a scissor-fork type manual lifting platform, the drilling construction of the tunnel is completed through six mechanical arms of the drilling device, and the gripping installation construction of the lifting column is completed through the hydraulic lifting column gripping device.
Preferably, the drilling apparatus consists essentially of a six-axis robot, drive and control system. The six-axis manipulator is provided with an arm part, a wrist part and a hand part, can realize the control of the action sequence and the motion trail of the drilling operation, and realizes the accurate drilling of different heights and positions.
Preferably, the hydraulic lifting column grabbing device mainly comprises a crank arm, a telescopic arm, a clamping jaw, a corresponding hydraulic oil cylinder, a motor and a rotary base, the clamping jaw is controlled to be opened and closed through the hydraulic oil cylinder to grab the lifting column, the extension and the angle of the crank arm and the telescopic arm are controlled through the hydraulic oil cylinder to lift, and the rotary base is driven to rotate through the motor to realize accurate alignment of lifting column installation.
Preferably, the drilling device can meet the requirement that the drilling operation height range of the side wall of the double-line tunnel is 2000-4000 mm and the maximum height of the top drill hole is 8000mm through rotation, lifting and longitudinal movement of the rotary telescopic lifting platform; the operation vehicle can longitudinally move for 4000mm distance to complete drilling at a plurality of positions after being started and stopped once; the hydraulic davit grabbing device can meet the requirement that the farthest distance from the mounting position of the davit to the center of a line is 2750 mm.
More preferably, the scissor-type manual lifting platform is adjustable in height through a hydraulic oil cylinder, and can be used for manual auxiliary operation during construction operation inspection and suspension column installation.
Preferably, the hydraulic support leg assembly mainly comprises 4 groups of movable support leg oil cylinders, 4 groups of transverse moving oil cylinders, a transverse moving oil cylinder mounting box body, a pressure sensor and a limit switch; the transverse moving oil cylinder is arranged in the transverse moving oil cylinder mounting box body; according to the condition of the track bed, the positions of the movable support oil cylinder and the transverse moving oil cylinder can be adjusted, and the vehicle is prevented from overturning.
The technical scheme of the novel highway and railway dual-purpose tunnel construction operating vehicle provided by the invention comprises any combination of the parts, and the simple change or combination of the parts still belongs to the protection scope of the patent.
The utility model provides a novel dual-purpose tunnel construction operation car of highway railway is efficient, adaptability is strong, compares with prior art, and the advantage of this scheme lies in: (1) a plurality of devices are integrated on the same platform, and the punching and the installation are coordinated and matched with each other, so that the working efficiency can be improved; (2) the power of the rubber wheel can be transmitted to the steel wheel through the highway-railway dual-purpose switching device with a simple structure, so that a set of steel wheel bogie and a driving system are saved; (3) through hydraulic leg assembly, solve the railway switch and change the rail and change the consuming time of transition and overturn the security problem when the track of double-track railway.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment 1.1 of a novel highway and railway dual-purpose tunnel construction vehicle of the invention;
FIG. 2 is a schematic operation diagram of a preferred embodiment 1.2 of the novel highway and railway dual-purpose tunnel construction vehicle of the invention;
fig. 3 is a schematic diagram of an internal structure of the switching device for highway and railway in the embodiment 1.1 shown in fig. 1;
fig. 4 is a schematic view of the working principle of the switching device for highway and railway in the embodiment 1.1 shown in fig. 1;
FIG. 5 is a schematic structural view of the rotary telescopic lifting platform of embodiment 1.1 shown in FIG. 1;
FIG. 6 is a schematic structural diagram of a scissor-type artificial lift platform according to embodiment 1.1 shown in FIG. 1;
FIG. 7 is a schematic view of the embodiment 1.2 of FIG. 2 showing the operation of the rotary telescopic lifting platform;
the numerical designations in fig. 1-7 denote:
1-automobile chassis; 2-a hydraulic leg assembly; 3, a highway-railway dual-purpose switching device; 4, rotating the telescopic lifting platform; 5, a hydraulic davit grabbing device; 6, a drilling device; 7-scissor-fork type artificial lifting platform; 21-movable support oil cylinder; 22-a transverse moving oil cylinder; 23, transversely moving the oil cylinder to install a box body; 30-driving rubber wheels; 31-rubber wheel; 32-steel wheel; 33-a hydraulic cylinder; 34, a box body; 35 — an internal gear set; 41-a sliding track; 42-a slide base; 43-telescopic columns; 44-multi-stage telescopic hydraulic cylinder; 45, a working platform.
Detailed Description
For better understanding of the present invention, preferred embodiments of a novel highway and railway dual-purpose tunnel construction work vehicle according to the present invention will be described in detail below with reference to the accompanying drawings, respectively.
Example 1.1: a novel highway and railway dual-purpose tunnel construction operation vehicle is used for tunnel drilling and suspension column installation operation of railways or highways.
In the embodiment, the working vehicle enters the railway tunnel to reach a construction point, the hydraulic cylinder (33) in the highway-railway dual-purpose switching device (3) extends out, the steel wheel (32) is in contact with a rail surface at the moment, the automobile chassis (1) is lifted, the rubber wheel (31) is in contact with the driving rubber wheel (30), the driving rubber wheel (30) rubs to drive the rubber wheel (31) to rotate, the power of the rubber wheel (31) is transmitted to the steel wheel (32) through the internal gear set (35), and the working vehicle is switched to a steel wheel walking state. The movable supporting leg oil cylinder (21) and the transverse moving oil cylinder (22) of the hydraulic supporting leg assembly (2) extend out, the overturn prevention capacity is greatly improved, and construction operation is started.
In the embodiment, the sliding track (41) is arranged on a modified flat trailer of the automobile chassis (1); a plurality of rollers are arranged below the sliding base (42) and can slide on the sliding track (41) under the action of a multi-stage telescopic hydraulic cylinder (44). The telescopic upright column (43) is connected with the sliding base (42) through a group of worm gears and worms, so that the telescopic upright column (43) can rotate 360 degrees relative to the sliding base (42); the working platform (45) is arranged on the telescopic upright post (43), and the other group of multi-stage telescopic hydraulic cylinders are arranged in the telescopic upright post (43) and can drive the working platform (45) to lift in the vertical direction.
In the embodiment, one end of the working platform (45) is provided with a hydraulic lifting column grabbing device (5), and the other end of the working platform is provided with a drilling device (6). The drilling device (6) controls the movement of the arm part, the wrist part and the hand part of the six-axis manipulator through the driving and controlling system, so that the movement sequence and the movement track of the drilling operation can be controlled, and accurate drilling at different heights and positions can be realized. The hydraulic lifting column grabbing device (5) controls opening and closing of the clamping jaws through a hydraulic oil cylinder to realize grabbing of a lifting column, lifting is realized through extension and angles of the crank arm and the telescopic arm controlled by the hydraulic oil cylinder, and the lifting column is installed in an accurate alignment mode through rotation of the motor-driven rotating base. Still install on work platform (45) and cut artifical lift platform of fork (7), cut artifical lift platform of fork (7) and drive the connecting rod height-adjusting through a set of hydraulic cylinder is flexible, artifical auxiliary operation when can be used to construction operation inspection and davit installation.
Example 1.2: the utility model provides a novel dual-purpose tunnel construction operation car of highway railway, lies in with embodiment 1.1 difference, through the lifting and the clockwise rotation 90 of rotatory flexible lift platform (4), mainly used drilling equipment (6) carry out the drilling operation to the top in double track tunnel. The multistage telescopic hydraulic cylinder (44) is extended to push the sliding base (42) to drive the rotary telescopic lifting platform (4) to move along the direction of the vehicle, the operation vehicle is started and stopped once, and the operation vehicle can move within the longitudinal 4000mm distance to complete drilling at a plurality of positions.
In the embodiment, the drilling device (6) can meet the requirement that the drilling operation height range of the side wall of the double-line tunnel is 2000-4000 mm and the maximum top drilling height is 8000mm by rotating, lifting and longitudinally moving the rotary telescopic lifting platform (4); the hydraulic lifting column grabbing device (5) can meet the requirement that the farthest distance from the mounting position of the lifting column to the center of the line is 2750 mm.
The embodiment the novel highway and railway dual-purpose tunnel construction operation vehicle can meet the requirement of precise construction of tunnel drilling, greatly reduces the labor intensity of workers, controls a hydraulic system through an electric control system, greatly saves manpower for construction of the operation vehicle, and is simple and convenient to operate. The operation vehicle provided by the invention has the advantages of high efficiency, strong adaptability, high construction precision and simple and convenient operation.
Claims (5)
1. The utility model provides a novel dual-purpose tunnel construction operation car of public railway mainly includes: the device comprises an automobile chassis (1), a hydraulic support leg assembly (2), a highway and railway dual-purpose switching device (3), a rotary telescopic lifting platform (4), a hydraulic lifting column grabbing device (5), a drilling device (6), a scissor type manual lifting platform (7), a hydraulic oil tank, a hydraulic control system and an electric control system; the automobile chassis (1) comprises a cab, a modified flat trailer and a driving rubber wheel (30); hydraulic leg assemblies (2) are arranged in the front and at the back of the modified flat-bed trailer, a rotary telescopic lifting platform (4) is arranged on the modified flat-bed trailer, and a highway-railway dual-purpose switching device (3) is arranged at the bottom of the modified flat-bed trailer; the rotary telescopic lifting platform (4) mainly comprises a sliding track (41), a sliding base (42), a telescopic upright post (43), a multi-stage telescopic hydraulic cylinder (44) and a working platform (45); the hydraulic support leg assembly (2), the highway-railway dual-purpose switching device (3), the rotary telescopic lifting platform (4), the hydraulic lifting column grabbing device (5) and the scissor type manual lifting platform (7) are controlled by a hydraulic control system in a cab.
2. The novel highway and railway dual-purpose tunnel construction vehicle as claimed in claim 1, wherein: the highway-railway dual-purpose switching device (3) mainly comprises a rubber wheel (31), a steel wheel (32), a hydraulic cylinder (33) and a box body (34); the rubber wheel (31) and the driving rubber wheel (30) are in a close contact state; when the hydraulic cylinder (33) extends out, the highway and railway dual-purpose switching device (3) falls down, the steel wheels (32) are contacted with the rail surface, the automobile chassis (1) is lifted, and the railway running state is realized at the moment; when the railway runs, the driving rubber wheel (30) of the automobile chassis (1) is in an idle running state, the rubber wheel (31) is driven to rotate by friction, power is transmitted to the steel wheel (32) from the rubber wheel (31) through the internal gear set (35) of the highway-railway dual-purpose switching device (3), and the power problem of the operating vehicle in the railway running state is solved.
3. The novel highway and railway dual-purpose tunnel construction vehicle as claimed in claim 1, wherein: the working platform (45) is arranged on the telescopic upright post (43), and the working platform (45) is provided with a hydraulic lifting post gripping device (5), a drilling device (6) and a scissor type manual lifting platform (7); the sliding track (41) is arranged on a modified flat trailer of the automobile chassis (1); a plurality of rollers are arranged below the sliding base (42) and can slide on the sliding track (41) under the action of a multi-stage telescopic hydraulic cylinder (44); the telescopic upright column (43) is connected with the sliding base (42) through a group of worm gears and worms, so that the telescopic upright column (43) can rotate relative to the sliding base (42); another group of multi-stage telescopic hydraulic cylinders are arranged in the telescopic upright columns (43), so that the working platform (45) is lifted.
4. The novel highway and railway dual-purpose tunnel construction vehicle as claimed in claim 1, wherein: the scissor-fork type manual lifting platform (7) can be used for construction operation inspection and manual auxiliary operation during suspension column installation.
5. The novel highway and railway dual-purpose tunnel construction vehicle as claimed in claim 1, wherein: the hydraulic support leg assembly (2) mainly comprises 4 groups of movable support leg oil cylinders (21), 4 groups of transverse moving oil cylinders (22), a transverse moving oil cylinder mounting box body (23), a pressure sensor and a limit switch; the transverse moving oil cylinder (22) is arranged in the transverse moving oil cylinder mounting box body (23); according to the condition of the track bed, the positions of the movable support leg oil cylinder (21) and the transverse moving oil cylinder (22) can be adjusted, and the vehicle is prevented from overturning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913297.5A CN115095331A (en) | 2022-08-01 | 2022-08-01 | Novel highway and railway dual-purpose tunnel construction operation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913297.5A CN115095331A (en) | 2022-08-01 | 2022-08-01 | Novel highway and railway dual-purpose tunnel construction operation vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115095331A true CN115095331A (en) | 2022-09-23 |
Family
ID=83300995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210913297.5A Pending CN115095331A (en) | 2022-08-01 | 2022-08-01 | Novel highway and railway dual-purpose tunnel construction operation vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115095331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849261A (en) * | 2022-11-17 | 2023-03-28 | 华交智慧(江西)工程技术有限公司 | Multifunctional tunnel maintenance vehicle |
-
2022
- 2022-08-01 CN CN202210913297.5A patent/CN115095331A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849261A (en) * | 2022-11-17 | 2023-03-28 | 华交智慧(江西)工程技术有限公司 | Multifunctional tunnel maintenance vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114013975A (en) | Multi freedom goods upset transfer device | |
| CN210589165U (en) | Half-wheel pair overturning equipment | |
| CN115095331A (en) | Novel highway and railway dual-purpose tunnel construction operation vehicle | |
| CN111438811A (en) | Concrete prefabricated section upset shedder | |
| CN107605515A (en) | A kind of operation tunnel Disease Treatment steel arch-shelf fitting machine | |
| CN113279790B (en) | Working face support retracting robot and working method thereof | |
| CN113175194B (en) | Automatic multisection horizontal lift telescopic operation platform | |
| CN113945410A (en) | Road core extractor | |
| CN218265906U (en) | Novel highway and railway dual-purpose tunnel construction operation vehicle | |
| CN2785933Y (en) | Board and oil cylinder perpendicularly rerailer | |
| CN113074001A (en) | Multifunctional operation rack suitable for tunnel construction | |
| CN200971290Y (en) | Steering wheel-track grantries crane | |
| CN112320608A (en) | Rail type hydraulic prop transfer robot | |
| CN204370261U (en) | A kind of old rail rail relayer with hunting gear | |
| CN113120541B (en) | Obstacle clearing device for road tunnel and using method thereof | |
| CN110937555A (en) | Track maintenance car | |
| CN213838624U (en) | Many function combination crawler-type lift operation car | |
| CN214091699U (en) | Five-arm anchor rod drill carriage for coal mine | |
| CN213505665U (en) | Rail type hydraulic prop transfer robot | |
| CN212247708U (en) | Intelligent combined turnout laying and replacing unit | |
| CN208310801U (en) | A kind of working portable shifting formwork trolley of channel wall | |
| CN219732043U (en) | Ground slotting and precast block mounting equipment | |
| CN211871279U (en) | New energy automobile battery electric lifting vehicle | |
| CN221194148U (en) | Wallboard installation robot | |
| CN111734432B (en) | Multifunctional combined crawler type lifting operation vehicle |
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 |