CN104860230B - A kind of marine engineering equipment module dedicated hydraulic dolly and application method - Google Patents
A kind of marine engineering equipment module dedicated hydraulic dolly and application method Download PDFInfo
- Publication number
- CN104860230B CN104860230B CN201510267600.9A CN201510267600A CN104860230B CN 104860230 B CN104860230 B CN 104860230B CN 201510267600 A CN201510267600 A CN 201510267600A CN 104860230 B CN104860230 B CN 104860230B
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- jacking
- pressure
- valve
- accumulator
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/22—Lifting frames, e.g. for lifting vehicles; Platform lifts with tiltable platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of marine engineering equipment module dedicated hydraulic dolly, main body is small rail car, also include jacking pumping plant, jacking cylinder, accumulator and valve group, the jacking cylinder, accumulator and valve group are fixedly installed on trolley base upper surface, the jacking pumping station layout passes through high-pressure hose mutual conduction outside small rail car between the jacking pumping plant, jacking cylinder, accumulator and valve group.The present invention is automatically controlled by a set of synchronous control system.Jack-up system has horizontal synchronization function, can also eliminate jacking cylinder superpressure caused by ground injustice with pressure balance function, pressure balance function and destroy module steel construction.All hydraulic power units are loaded on dedicated track dolly by set of system centralized Control, are carried out with horizontal movement velocity.It is displacement closed-loop control in jacking, is controlled when mobile for pressure closed loop, pressure balanced precision when configuration accumulator can improve mobile.
Description
Technical field
The present invention relates to marine engineering equipment field, more particularly to a kind of marine engineering equipment module dedicated hydraulic dolly and
Application method.
Background technology
Ocean engineering refers to develop, utilization, protection, recover marine resources for the purpose of, and project subject is located at seashore
Newly-built, renovating and enlarging engineering of the line to extra large side.Specifically include：Perioperative cardiac events, marine dam construction, man-made island, sea and seabed
Goods and materials storage facilities, Oversea bridge, seabed tunnel engineering, submarine pipeline, seabed electricity（Light）Cable engineering, oceanic mineral resources exploration
Exploitation and its marine energy such as appurtenant work, marine tidal power station, wave energy power station, temperature difference power station utilization engineering, large-scale sea
The multipurpose use of sea water engineering such as water plant, Artificial Fish-Reefs, salt pan, desalinization, sea amusement and motion, sight exploitation
Engineering, and national marine authorities can be the same as other ocean engineerings as defined in environmental protection authorities of State Council.
Module mode of construction is a kind of relatively advanced mode of construction in ocean engineering, but be related in ocean engineering
Equipment profile, weight is all more huge, and traditional operating type price in the use of manpower and materials expends resource, and efficiency
It is more low.
The content of the invention
In order to solve the above problems, the invention provides a kind of simple in construction, realization easily passes through synchronous control system
Automatically controlled, possess horizontal synchronization function and pressure balance function, pressure balance function can be eliminated caused by ground injustice
Jacking cylinder superpressure and the technical scheme for destroying module steel construction：
A kind of marine engineering equipment module dedicated hydraulic dolly, main body are small rail car, including trolley base and drive
Group, driving wheel group are movably arranged on trolley base bottom, in addition to jacking pumping plant, jacking cylinder, accumulator and valve group, jacking oil
Cylinder, accumulator and valve group are fixedly installed on trolley base upper surface, and jacking pumping station layout is outside small rail car, the jacking pump
Stand, between jacking cylinder, accumulator and valve group by high-pressure hose mutual conduction.
Preferably, jacking pumping plant includes moving cart, fuel tank, electrical control cubicles, connecting tube, oil filter, liquid level gauge, air cooling
Device, hydraulic services, hydraulic pressure pump group, hydraulic valve bank and motor, moving cart are hollow cube structure, and moving cart bottom is set
Movable pulley is equipped with, sets fuel tank, electrical control cubicles, connecting tube, oil filter, liquid level gauge, forced air cooler, hydraulic pressure attached inside moving cart
Part, hydraulic pressure pump group, hydraulic valve bank and motor, fuel tank are arranged on moving cart inner cavity top, and top of oil-tank sets oil filter, oil
Case side is provided with liquid level gauge, and electrical control cubicles are mutual with forced air cooler, hydraulic services, hydraulic pressure pump group, hydraulic valve bank and motor respectively
Electrical connection, fuel tank, hydraulic services, hydraulic pressure pump group, hydraulic valve bank pass through connecting tube mutual conduction.
Preferably, jacking cylinder is one-way cylinder, the BAR of operating pressure 200 ~ 220, stroke jacks for 190 ~ 210mm
The drive shaft of oil cylinder is arranged on top, is flexibly connected rotary saddle in drive shaft, rotary saddle using drive shaft summit as midpoint to
Any direction tilts 5 °.
Preferably, accumulator is bellows structure, inside have can inflated with nitrogen rubbery human body.
Preferably, valve group include oil path block, pressure gauge, oil return valve, cut-off type magnetic valve, check valve, pressure sensor,
High-pressure ball valve, the jacking cylinder on dolly can be carried out to decline control for oil return valve, cut-off type magnetic valve and high-pressure ball valve can control
The make-break operation of accumulator.
The application method of such a marine engineering equipment module dedicated hydraulic dolly, comprises the following steps：
（1）Earlier machine prepares, the operational version of hydraulic trolley is designed it is pre- hold out against point A and hold out against point B in advance, according to
Design hydraulic trolley position is configured and connect fluid pressure line and electric wiring after start hydraulic power unit and to absolute
Shift value is reset；
（2）Jacking for the first time synchronously rises in the pre- point A operations jacking cylinder that holds out against with weighing, records pressure value and set
Parameter, the pressure value of each point is recorded, while each point fills according to pressure data record value according to 90% pair of accumulator
After pressure, control jacking cylinder synchronously declines and quick relief；
（3）Second of jacking synchronously rises, each point is according to step with place in the pre- point B operations jacking cylinder that holds out against（2）In
The 90% of pressure data record value synchronizes rising, and the pressure value of each point is recorded；
（4）Towing and pressure closed loop, according to actual requirement, according to step（2）Or step（3）Recorded in pressure value
Start workpiece pull, wait pull in place afterwards control jacking cylinder synchronously decline and quick relief, after oil cylinder is fully retracted, shut down
And electric wiring, oil pipe are gradually removed, finally remove hydraulic trolley.
The beneficial effects of the present invention are：
The present invention is automatically controlled by a set of synchronous control system.Jack-up system has horizontal synchronization function, also has
Pressure balance function, pressure balance function can eliminate jacking cylinder superpressure caused by ground injustice and destroy module steel construction.Institute
Some hydraulic power units are loaded on dedicated track dolly by set of system centralized Control, are carried out with horizontal movement velocity.
It is displacement closed-loop control during jacking, is controlled when mobile for pressure closed loop, pressure balanced essence when configuration accumulator can improve mobile
Degree.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention
Fig. 2 is jacking pump station structure schematic diagram；
Fig. 3 is jacking pumping plant side view；
Fig. 4 is jacking pumping plant bottom surface structure schematic diagram；
Fig. 5 is valve block structure schematic diagram.
Embodiment
To make the goal of the invention of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing to the present invention's
Embodiment is described in further detail.
As shown in figure 1, the small vehicle main body of marine engineering equipment module dedicated hydraulic is small rail car, including trolley base 1 and
Driving wheel group 2, driving wheel group 2 are movably arranged on the bottom of trolley base 1, in addition to jacking pumping plant 3, jacking cylinder 4, accumulator 5
And valve group 6, jacking cylinder 4, accumulator 5 and valve group 6 are fixedly installed on the upper surface of trolley base 1, jacking pumping plant 4 is arranged on track
Outside dolly, pass through high-pressure hose mutual conduction between the jacking pumping plant 3, jacking cylinder 4, accumulator 5 and valve group 6.
As shown in Fig. 2 ~ 4, jacking pumping plant 3 includes moving cart 3a, fuel tank 3b, electrical control cubicles 3c, connecting tube 3d, oil filter
3e, liquid level gauge 3f, forced air cooler 3g, hydraulic services 3h, hydraulic pressure pump group 3i, hydraulic valve bank 3j and motor 3k, moving cart 3a
For hollow cube structure, moving cart 3a bottoms are provided with movable pulley 3l, fuel tank 3b, electrical control cubicles are set inside moving cart 3a
3c, connecting tube 3d, oil filter 3e, liquid level gauge 3f, forced air cooler 3g, hydraulic services 3h, hydraulic pressure pump group 3i, hydraulic valve bank 3j and electricity
Motivation 3k, fuel tank 3b are arranged on moving cart 3a inner cavity tops, set oil filter 3e at the top of fuel tank 3b, fuel tank 3b sides are provided with liquid
Position meter 3f, electrical control cubicles 3c respectively with forced air cooler 3g, hydraulic services 3h, hydraulic pressure pump group 3i, hydraulic valve bank 3j and motor 3k phases
Mutually electrical connection, fuel tank 3b, hydraulic services 3h, hydraulic pressure pump group 3i, hydraulic valve bank 3j pass through connecting tube 3d mutual conductions.
Also, jacking cylinder 4 therein is one-way cylinder, and the BAR of operating pressure 200 ~ 220, stroke is 190 ~ 210mm
The drive shaft of jacking cylinder 4 is arranged on top, is flexibly connected rotary saddle 7 in drive shaft, rotary saddle 7 using drive shaft summit as
Midpoint tilts 5 ° to any direction.Accumulator 5 is bellows structure, inside have can inflated with nitrogen rubbery human body 8.
As shown in figure 5, valve group 6 includes oil path block 6a, pressure gauge 6b, oil return valve 6c, cut-off type magnetic valve 6d, check valve
6e, pressure sensor 6f, high-pressure ball valve 6g, oil return valve 6c therein, cut-off type magnetic valve 6d can be to the jacking cylinders 4 on dolly
Carry out declining control and high-pressure ball valve 6g can control the make-break operation of accumulator 5.The marine engineering equipment module dedicated hydraulic is small
Car is automatically controlled by a set of synchronous control system.Jack-up system has horizontal synchronization function, also with pressure balance function,
Pressure balance function can eliminate the superpressure of jacking cylinder 4 caused by ground injustice and destroy module steel construction.All hydraulic power units 4
By set of system centralized Control, and it is loaded on dedicated track dolly, carries out with horizontal movement velocity.It is displacement in jacking
Closed-loop control, controlled when mobile for pressure closed loop, pressure balanced precision when configuration accumulator 5 can improve mobile.
The application method of such a marine engineering equipment module dedicated hydraulic dolly, comprises the following steps：
（1）Earlier machine prepares, the operational version of hydraulic trolley is designed it is pre- hold out against point A and hold out against point B in advance, according to
Design hydraulic trolley position is configured and connect fluid pressure line and electric wiring after start hydraulic power unit and to absolute
Shift value is reset；
（2）Jacking for the first time synchronously rises in the pre- point A operations jacking cylinder 4 that holds out against with weighing, records pressure value and set
Parameter, the pressure value of each point is recorded, while each point is carried out according to pressure data record value according to 90% pair of accumulator 5
After pressurising, control jacking cylinder 4 is synchronous to decline simultaneously quick relief；
（3）Jack for the second time and in place, operate the synchronously rising of jacking cylinder 4 in the pre- point B that holding out against, each point is according to step（2）
The 90% of middle pressure data record value synchronizes rising, and the pressure value of each point is recorded；
（4）Towing and pressure closed loop, according to actual requirement, according to step（2）Or step（3）Recorded in pressure value
Start workpiece to pull, wait pull in place afterwards control jacking cylinder 4 is synchronous to decline and quick relief, after oil cylinder is fully retracted, stop
Machine simultaneously gradually removes electric wiring, oil pipe, finally removes hydraulic trolley.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
The technical scheme that can be realized on the basis of above-described embodiment without creative work, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (6)
1. a kind of marine engineering equipment module dedicated hydraulic dolly, main body is small rail car, including trolley base and driving wheel group,
Driving wheel group is movably arranged on trolley base bottom, it is characterised in that：Also include jacking pumping plant, jacking cylinder, accumulator and valve
Group, the jacking cylinder, accumulator and valve group are fixedly installed on trolley base upper surface, and the jacking pumping station layout is small in track
Outside car, pass through high-pressure hose mutual conduction between the jacking pumping plant, jacking cylinder, accumulator and valve group.
A kind of 2. marine engineering equipment module dedicated hydraulic dolly according to claim 1, it is characterised in that：The jacking
Pumping plant include moving cart, fuel tank, electrical control cubicles, connecting tube, oil filter, liquid level gauge, forced air cooler, hydraulic services, hydraulic pressure pump group,
Hydraulic valve bank and motor, the moving cart are hollow cube structure, and moving cart bottom is provided with movable pulley, and movement is small
In-car portion sets fuel tank, electrical control cubicles, connecting tube, oil filter, liquid level gauge, forced air cooler, hydraulic services, hydraulic pressure pump group, hydraulic valve
Group and motor；The fuel tank is arranged on moving cart inner cavity top, and top of oil-tank sets oil filter, and fuel tank side is provided with liquid level
Meter；The electrical control cubicles are electrically connected to each other with forced air cooler, hydraulic services, hydraulic pressure pump group, hydraulic valve bank and motor respectively；It is described
Fuel tank, hydraulic services, hydraulic pressure pump group, hydraulic valve bank pass through connecting tube mutual conduction.
A kind of 3. marine engineering equipment module dedicated hydraulic dolly according to claim 1, it is characterised in that：The jacking
Oil cylinder is one-way cylinder, and 200~220BAR of operating pressure, stroke is that the drive shaft of 190~210mm jacking cylinders is arranged on top
Portion, rotary saddle is flexibly connected in drive shaft, and rotary saddle tilts 5 ° using drive shaft summit as midpoint to any direction.
A kind of 4. marine engineering equipment module dedicated hydraulic dolly according to claim 1, it is characterised in that：The accumulation of energy
Device is bellows structure, inside have can inflated with nitrogen rubbery human body.
A kind of 5. marine engineering equipment module dedicated hydraulic dolly according to claim 1, it is characterised in that：The valve group
Including oil path block, pressure gauge, oil return valve, cut-off type magnetic valve, check valve, pressure sensor, high-pressure ball valve；The oil return valve,
The jacking cylinder on small rail car can be carried out to decline control for cut-off type magnetic valve and high-pressure ball valve can control the break-make of accumulator
Operation.
6. realize a kind of use of marine engineering equipment module dedicated hydraulic dolly in Claims 1 to 5 described in any one
Method, it is characterised in that：Comprise the following steps：
(1) earlier machine prepares, the operational version of hydraulic trolley is designed it is pre- hold out against point A and hold out against point B in advance, according to design
Scheme hydraulic trolley position is configured and connect fluid pressure line and electric wiring after start hydraulic power unit and to absolute displacement
Value is reset；
(2) jacking for the first time synchronously rises, record pressure value and setup parameter with weighing in the pre- point A operations jacking cylinder that holds out against,
The pressure value of each point is recorded, while each point carries out pressurising according to pressure data record value according to 90% pair of accumulator
Afterwards, jacking cylinder is controlled synchronously to decline simultaneously quick relief；
(3) second of jacking synchronously rises, each point is according to pressure in step (2) with place in the pre- point B operations jacking cylinder that holds out against
The 90% of data record value synchronizes rising, and the pressure value of each point is recorded；
(4) towing and pressure closed loop, according to actual requirement, start according to the pressure value recorded in step (2) or step (3)
Workpiece pull, wait pull in place afterwards control jacking cylinder synchronously decline and quick relief, after oil cylinder is fully retracted, shut down and by
Secondary dismounting electric wiring, oil pipe, finally remove hydraulic trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267600.9A CN104860230B (en) | 2015-05-25 | 2015-05-25 | A kind of marine engineering equipment module dedicated hydraulic dolly and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267600.9A CN104860230B (en) | 2015-05-25 | 2015-05-25 | A kind of marine engineering equipment module dedicated hydraulic dolly and application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104860230A CN104860230A (en) | 2015-08-26 |
| CN104860230B true CN104860230B (en) | 2017-11-28 |
Family
ID=53906480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510267600.9A Active CN104860230B (en) | 2015-05-25 | 2015-05-25 | A kind of marine engineering equipment module dedicated hydraulic dolly and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104860230B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107840282A (en) * | 2017-11-30 | 2018-03-27 | 广州市远能物流自动化设备科技有限公司 | A kind of fluid pressure type lifting structures for AGV dollies |
| CN113753791B (en) * | 2021-09-18 | 2023-04-07 | 广东韶钢松山股份有限公司 | Special tool and method for replacing and sealing energy accumulator joint |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201514271U (en) * | 2009-09-18 | 2010-06-23 | 中国海洋石油总公司 | Computer logic control synchronous jacking weighing device |
| CN102101629B (en) * | 2009-12-18 | 2013-06-19 | 中国海洋石油总公司 | Hierarchical synchronous hydraulic jacking process for large-tonnage ocean engineering structure |
| KR101230082B1 (en) * | 2011-03-09 | 2013-02-05 | 인하대학교 산학협력단 | Current power device applied to offshore wind power system |
| CN102556909B (en) * | 2012-01-17 | 2013-08-21 | 大连理工大学 | Torque-free automatic correction hydraulic thrustor used for flat ground shipbuilding and land and sea transportation |
| CN202449818U (en) * | 2012-02-20 | 2012-09-26 | 大连理工大学 | Hydraulic pushing device for building ship on flat ground |
-
2015
- 2015-05-25 CN CN201510267600.9A patent/CN104860230B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104860230A (en) | 2015-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106088788B (en) | A kind of electric pole mounting robot | |
| CN103758687A (en) | Wave energy and ocean current energy integrated generator and power generation method thereof | |
| AU2022201203B2 (en) | Mechanical energy storage | |
| CN204677360U (en) | The wave energy collection device of self adaption tidal level | |
| CN205184149U (en) | Ocean double skin duct welding equipment of being geared to needs of job | |
| CN102587363A (en) | Method for assembling truss framed leg of self-elevating drilling platform | |
| CN101761032A (en) | Jack-in erection equipment for bridge | |
| CN203224347U (en) | Towing tank trailer | |
| CN104860230B (en) | A kind of marine engineering equipment module dedicated hydraulic dolly and application method | |
| CN107031790A (en) | Three-dimensional adjustment instrument closes up large-scale total group of segment process method | |
| CN105527402A (en) | Three-dimensional model testing apparatus and method for water outburst and mud outburst of deeply-buried long tunnel | |
| CN102261517B (en) | Method for installing prestressed steel cylinder concrete pipe in narrow space in casing pipe | |
| CN106814179A (en) | The test method of fluid structurecoupling analog simulation experimental rig | |
| CN102435396A (en) | Water jacket of cylinder block of diesel engine as well as watertightness detection device and method of water jacket of cylinder block | |
| CN109406759B (en) | Assembled multifunctional geotechnical engineering test model box | |
| CN201843159U (en) | Movable grab sewage disposal apparatus | |
| CN117173981A (en) | Cross-fault tunnel physical model experiment system device and method | |
| CN104100439A (en) | Method for power generation through gravity and buoyancy and in-liquid double-force engine (unit) | |
| CN103075613B (en) | Roadway work surface hydraulic roof connecting device | |
| CN103035163B (en) | Supporting and reverse propelling device of shield testing machine | |
| CN202706019U (en) | Foundation steel column of solar photovoltaic power station | |
| CN102101629B (en) | Hierarchical synchronous hydraulic jacking process for large-tonnage ocean engineering structure | |
| CN102464094A (en) | Man-made sea island electricity generating platform | |
| CN202229887U (en) | Water tightness detection device for diesel engine cylinder block water jacket and cylinder sleeve water jacket | |
| CN203844562U (en) | Rail and land dual-purpose emergency water drainage vehicle for coal mine inclined laneway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226000 No. 1, COSCO Road, Jiangsu, Nantong Patentee after: Nantong COSCO Shipping Engineering Co., Ltd. Address before: 226000 No. 1, COSCO Road, Jiangsu, Nantong Patentee before: COSCO Shipyard Group Co., Ltd. |