CN110056552B - Integral slag turning workbench hydraulic system - Google Patents
Integral slag turning workbench hydraulic system Download PDFInfo
- Publication number
- CN110056552B CN110056552B CN201910238382.4A CN201910238382A CN110056552B CN 110056552 B CN110056552 B CN 110056552B CN 201910238382 A CN201910238382 A CN 201910238382A CN 110056552 B CN110056552 B CN 110056552B
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- electromagnet
- ports
- valve
- slag
- 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
Images
Classifications
-
- 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
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
-
- 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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Control And Safety Of Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses an integral slag-turning workbench hydraulic system which mainly comprises an oil tank, a hydraulic driving module and a pumping module for connecting the oil tank and the hydraulic driving module, wherein the hydraulic driving module comprises a large arm rotating oil cylinder unit, a lower gripper telescopic oil cylinder unit, a lower gripper transverse moving oil cylinder unit, an upper gripper rotating oil cylinder unit and a large arm stretching oil cylinder unit which are mutually connected in parallel through pipelines. The integrated control console is adopted, so that the operation is simple and convenient, and the construction efficiency is effectively improved; the automation degree is high, the labor intensity of workers is reduced, and the operation safety is improved; effectively reduces the operation cost and the potential safety hazard, and is convenient and quick to maintain.
Description
Technical Field
The invention belongs to the technical field of tunnel construction equipment, and particularly relates to an integral slag turning workbench hydraulic system.
Background
In the prior art, in the construction of subway tunnels, a slag transport vehicle is unloaded, the slag transport vehicle is transported to a steel rail at the bottom of a vertical shaft by a traction locomotive, a special slag unloading lifting appliance is adopted, and after a lifting hook of the special slag unloading lifting appliance is connected with a lifting shaft of a carriage of the slag transport vehicle by a gantry crane, the carriage of the slag transport vehicle is lifted out of the vertical shaft and transported to a slag abandoning field; then the overturning hook of the special slag unloading lifting appliance is connected to an overturning shaft of a carriage of the slag transport vehicle, and the carriage of the slag transport vehicle is inclined to one side by lowering the lifting hook of the special slag unloading lifting appliance or lifting the height of the overturning hook of the special slag unloading lifting appliance until the carriage is overturned to unload the slag soil; finally, the height of the turnover hook of the special slag unloading lifting appliance is reduced, so that the carriage of the slag transport vehicle returns to the horizontal state; the carriage of the slag transport vehicle is transported to a vertical shaft position through a gantry crane, and the carriage of the slag transport vehicle is placed into a chassis of the slag transport vehicle, so that the slag unloading process is completed.
The traditional slag unloading mode has the following disadvantages:
1. the construction efficiency is low, the depth of a common subway vertical shaft is 20-30m, the carriage of the slag car is lifted to the ground, then the carriage is conveyed to a slag yard for slag discharge, and then the carriage of the slag car is placed into the chassis of the slag car again. The whole slag unloading time is greatly influenced by the depth of the vertical shaft and the position of a slag field, and the slag unloading of the slag transport vehicle needs to occupy a gantry crane, so that the segment hoisting and the slag unloading of the slag transport vehicle need to be alternately carried out, and the construction time is occupied;
2. the safety hidden danger exists, the carriage of the slag transport vehicle needs to be vertically lifted in the vertical shaft, and if the slag soil contained in the carriage of the slag transport vehicle overflows excessively or the slag soil is stuck on the outer surface of the carriage and is easy to fall, the personal safety of constructors on the bottom surface of the vertical shaft can be influenced;
3. the environment pollution is easily caused, when the slag is dumped by the carriage of the slag transport vehicle, the carriage is higher from the bottom ground, the raised dust or the slag splashing is easily caused, and the surrounding environment is polluted to a certain extent;
4. the construction site planning is influenced, the current subway construction is mostly in the urban center, the construction site is limited, and the planning influence on the construction land is large due to the design of the area size of the slag yard.
Disclosure of Invention
The hydraulic system of the integral slag-turning workbench adopts automatic control to assist the normal work of the integral slag-turning workbench, effectively improves the construction efficiency and reduces the potential safety hazard.
The invention adopts the following technical scheme for solving the technical problems, the hydraulic system of the integral slag-turning workbench comprises an oil tank, a hydraulic driving module and a pumping module for connecting the oil tank and the hydraulic driving module, wherein the hydraulic driving module comprises a large arm rotating oil cylinder unit, a lower gripper telescopic oil cylinder unit, a lower gripper transverse moving oil cylinder unit, an upper gripper rotating oil cylinder unit and a large arm stretching oil cylinder unit which are mutually connected in parallel through pipelines;
a large arm rotary oil cylinder in the large arm rotary oil cylinder unit is connected with a valve control assembly I in an integrated valve block through a balance valve and a pipeline, a lower gripper telescopic oil cylinder in a lower gripper telescopic oil cylinder unit is connected with a valve control assembly II in the integrated valve block through a hydraulic lock and a pipeline, a lower gripper transverse oil cylinder in the lower gripper transverse oil cylinder unit is connected with a valve control assembly III in the integrated valve block through a hydraulic lock and a pipeline, an upper gripper rotary oil cylinder in the upper gripper rotary oil cylinder unit is connected with a valve control assembly IV in the integrated valve block through a hydraulic lock and a pipeline, a large arm stretching oil cylinder in the large arm stretching oil cylinder unit is connected with a valve control assembly V in the integrated valve block through a balance valve and a pipeline, and travel switches are respectively arranged on the large arm rotary oil cylinder, the lower gripper telescopic oil cylinder, the lower gripper transverse oil cylinder, the upper gripper rotary oil cylinder and the large arm telescopic oil cylinder;
the integrated valve block comprises a valve control assembly I, a valve control assembly II, a valve control assembly III, a valve control assembly IV, a valve control assembly V and an electromagnetic overflow valve connected with an input main pipe and an output main pipe, which are mutually connected in parallel through a pipeline, a large-drift-diameter electromagnetic directional valve and a stacked double one-way throttle valve I which are sequentially connected in series with each other in the valve control assembly I are connected with a large-arm rotary oil cylinder through a balance valve, a small-drift-diameter electromagnetic directional valve and a stacked double one-way throttle valve II which are sequentially connected in series with each other in the valve control assembly II are connected with a telescopic oil cylinder of a lower gripping apparatus through a hydraulic lock, a small-drift-diameter electromagnetic directional valve and a stacked double one-way throttle valve II which are sequentially connected in series with each other in the valve control assembly III are connected with a transverse oil cylinder of the lower gripping apparatus through a hydraulic lock, a large-drift-diameter electromagnetic, the large-drift-diameter electromagnetic reversing valve and the overlapped double one-way throttle valve I which are sequentially connected in series in the valve control assembly V are connected with the large-arm stretching oil cylinder through a balance valve, the output main pipe is sequentially connected with a one-way valve II, a pressure measuring joint, a pressure measuring pipeline and a pressure gauge through pipelines, and the input main pipe is sequentially connected with the input port of the oil tank through a water cooler and an oil return filter;
the pumping module comprises a three-phase asynchronous motor and an axial plunger pump, the three-phase asynchronous motor is connected with the axial plunger pump through a coupler, an output port of the axial plunger pump is connected with an input header pipe of the integrated valve block through a pipeline and a one-way valve I, and an input port of the axial plunger pump is connected with an oil suction filter on an oil tank through a pipeline.
Preferably, the oil tank is respectively provided with a liquid level meter, an oil absorption filter, a temperature transmitter, a liquid level relay, an oil discharge ball valve, an air filter and an oil return filter, the three-phase asynchronous motor is connected with the axial plunger pump through a coupler, and the axial plunger pump is connected with the oil absorption filter on the oil tank through a pipeline to form an integral slag turning workbench hydraulic pump station.
Preferably, the ports a3 and a4 of two groups of balance valves in the large-arm rotary oil cylinder unit are respectively connected with the liquid inlets of the rodless cavities of the two large-arm rotary oil cylinders through pipelines, the ports a1 and a2 of the two groups of balance valves are respectively connected with the port a of the integrated valve block through pipelines and joints, the ports B3 and B4 of the two groups of balance valves are respectively connected with the liquid outlets of the rod cavities of the two large-arm rotary oil cylinders through pipelines, and the ports B1 and B2 of the two groups of balance valves are respectively connected with the port B of the integrated valve block through pipelines.
Preferably, ports C3 and C4 of two sets of hydraulic locks in the lower gripper telescopic cylinder unit are respectively connected with liquid inlets of rodless cavities of the two lower gripper telescopic cylinders through pipelines, ports C1 and C2 of the two sets of hydraulic locks are respectively connected with ports C of the integrated valve block through pipelines, ports D3 and D4 of the two sets of hydraulic locks are respectively connected with liquid outlets of rod cavities of the two lower gripper telescopic cylinders through pipelines, and ports D1 and D2 of the two sets of hydraulic locks are respectively connected with ports D of the integrated valve block through pipelines.
Preferably, E3 ports and E4 ports of two groups of hydraulic locks in the lower gripper transverse oil cylinder unit are respectively connected with liquid inlets of rodless cavities of the two lower gripper transverse oil cylinders through pipelines, E1 ports and E2 ports of the two groups of hydraulic locks are respectively connected with E ports of the integrated valve block through pipelines, F3 ports and F4 ports of the two groups of hydraulic locks are respectively connected with liquid outlets of rod cavities of the two lower gripper transverse oil cylinders through pipelines, and F1 ports and F2 ports of the two groups of hydraulic locks are respectively connected with F ports of the integrated valve block through pipelines.
Preferably, G3 ports and G4 ports of two groups of hydraulic locks in the upper gripper rotary oil cylinder unit are respectively connected with liquid inlets of rodless cavities of the two upper gripper rotary oil cylinders through pipelines, G1 ports and G2 ports of the two groups of hydraulic locks are respectively connected with G ports of the integrated valve block through pipelines, H3 ports and H4 ports of the two groups of hydraulic locks are respectively connected with liquid outlets of rod cavities of the two upper gripper rotary oil cylinders through pipelines, and H1 ports and H2 ports of the two groups of hydraulic locks are respectively connected with H ports of the integrated valve block through pipelines.
Preferably, j3 ports and j4 ports of two groups of balance valves in the large arm stretching oil cylinder unit are respectively connected with liquid inlets of rodless cavities of the two large arm stretching oil cylinders through pipelines, j1 ports and j2 ports of the two groups of balance valves are respectively connected with M ports of the integration valve block through pipelines, k3 ports and k4 ports of the two groups of balance valves are respectively connected with liquid outlets of rod cavities of the two large arm stretching oil cylinders through pipelines, and k1 ports and k2 ports of the two groups of balance valves are respectively connected with N ports of the integration valve block through pipelines.
The invention relates to an operation method of an integral slag-turning worktable hydraulic system, which is characterized by comprising the following specific processes:
firstly, a tunnel traction locomotive pulls a slag transport vehicle to stop the slag transport vehicle in an operation area of an integral slag turning worktable, a three-phase asynchronous motor is started, and an axial plunger pump starts to run in a no-load mode;
then, a first control button is pressed down, an electromagnet Y1 for controlling an electromagnetic overflow valve and an electromagnet Y2 for controlling a large-diameter electromagnetic reversing valve of a large-arm rotary oil cylinder unit are powered on, a piston rod of a large-arm rotary oil cylinder extends L and then triggers a travel switch S1, an electromagnet Y2 is powered off, an electromagnet Y4 for controlling a small-diameter electromagnetic reversing valve of a lower gripper telescopic oil cylinder unit is powered on, a piston rod of a lower gripper telescopic oil cylinder extends L2 and then triggers a travel switch S2, an electromagnet Y4 is powered off, an electromagnet Y8 for controlling a small-diameter electromagnetic reversing valve of a lower gripper oil cylinder transverse moving unit is powered on, a piston rod of the upper gripper rotary oil cylinder extends completely and then triggers a travel switch S4, an electromagnet Y8 is powered off, an electromagnet Y8 for controlling a large-diameter electromagnetic reversing valve of an upper gripper rotary oil cylinder unit is powered on, a piston rod of the upper gripper rotary oil cylinder extends completely and then triggers a travel switch S4, an electromagnet Y8 is powered on, an electromagnet Y358 for controlling an integral large-diameter electromagnetic reversing valve of an electromagnet Y3527 and a slag discharging station for a large-arm rotary slag dumping car is prepared, and a slag dumping car is operated after the piston rod of the upper gripper rotary oil cylinder unit is extended and the large-dumping car is operated by an electromagnet Y1, and a slag dumping electric slag dumping car is operated by an electromagnet Y1, and a large-;
next, pressing a second control button, electrifying an electromagnet Y1 and an electromagnet Y3, triggering a travel switch S6 after a piston rod of the large-arm rotary oil cylinder is completely withdrawn, electrifying the electromagnet Y3, simultaneously electrifying an electromagnet Y11 of a large-diameter electromagnetic reversing valve for controlling a large-arm stretching oil cylinder unit, triggering a travel switch S7 after the piston rod of the large-arm stretching oil cylinder is completely withdrawn, simultaneously electrifying the electromagnet Y1 and the electromagnet Y11, unloading the system, and realizing the slag unloading of the carriage of the slag transport vehicle by the action of the turnover positioning mechanism of the integral slag turnover worktable;
finally, a third control button is pressed, an electromagnet Y1 and an electromagnet Y10 of a large-diameter electromagnetic reversing valve for controlling a large arm stretching oil cylinder unit are electrified, a piston rod of the large arm stretching oil cylinder completely extends to trigger a travel switch S8, the electromagnet Y10 is electrified, meanwhile, an electromagnet Y2 is electrified, a piston rod of the large arm rotating oil cylinder completely extends to trigger a travel switch S9, an electromagnet Y2 is electrified, the electromagnet Y9 for controlling the large-diameter electromagnetic reversing valve of the upper gripper rotating oil cylinder unit is electrified, the piston rod of the upper gripper rotating oil cylinder completely retracts to trigger a travel switch S10, an electromagnet Y9 is electrified, the electromagnet Y7 for controlling a small-diameter electromagnetic reversing valve of a lower gripper transverse moving oil cylinder unit is electrified, the piston rod of the lower gripper transverse moving oil cylinder completely extends to trigger a travel switch S11, the electromagnet Y7 is electrified, and the electromagnet Y5 for controlling a small-diameter electromagnetic reversing valve of the lower gripper stretching oil cylinder unit is electrified, the piston rod of the lower gripper telescopic oil cylinder completely retracts to trigger the travel switch S12, the electromagnet Y5 is powered off, the electromagnet Y3 is powered on, the piston rod of the large arm rotary oil cylinder completely retracts to trigger the travel switch S6, the electromagnet Y1 and the electromagnet Y3 are powered off simultaneously, the system is unloaded, the carriage of the slag transport vehicle returns to the state before slag unloading again through resetting of the overturning positioning mechanism of the integral slag overturning worktable, so that a working cycle is completed, and the next slag transport vehicle is waited to be in place. Electromagnet
The invention has the following beneficial effects:
1. the integrated control console is adopted, so that the operation is simple and convenient, and the construction efficiency is effectively improved;
2. the invention has high automation degree, reduces the labor intensity of workers and improves the operation safety;
3. the invention effectively reduces the operation cost and the potential safety hazard, and is convenient and rapid to maintain.
Drawings
FIG. 1 is a connection diagram of a control circuit according to the present invention.
In the figure: 1-an oil tank, 2-a liquid level meter, 3-an oil absorption filter, 4-a temperature transmitter, 5-a liquid level relay, 6-an oil discharge ball valve, 7-an air filter, 8-a three-phase asynchronous motor, 9-an axial plunger pump, 10-an oil return filter, 11-a water cooler, 12-check valves I, 13-check valves II, 14-a pressure measuring joint, 15-a pressure measuring pipeline, 16-a pressure gauge, 17-an electromagnetic overflow valve, 18-a small-drift-diameter electromagnetic reversing valve, 19-a large-drift-diameter electromagnetic reversing valve, 21-a stacked double-check throttle valve I, 21-a stacked double-check throttle valve II, 22-a check valve III, 23-a check valve IV, 24-a balance valve, 25-a hydraulic lock and 26-a travel switch, 27-big arm rotating cylinder, 28-lower gripper telescopic cylinder, 29-lower gripper transverse moving cylinder, 30-upper gripper rotating cylinder, 31-big arm stretching cylinder, 32-coupler, 33-integrated valve block and 34-pipeline.
Detailed Description
The technical scheme of the invention is described in detail with reference to the accompanying drawings.
An integral slag-turning workbench hydraulic system comprises an oil tank 1, a hydraulic driving module and a pumping module for connecting the oil tank 1 and the hydraulic driving module, wherein the hydraulic driving module comprises a large arm rotating oil cylinder unit, a lower gripper telescopic oil cylinder unit, a lower gripper transverse moving oil cylinder unit, an upper gripper rotating oil cylinder unit and a large arm stretching oil cylinder unit which are mutually connected in parallel through a pipeline 34;
a large arm rotary oil cylinder 27 in the large arm rotary oil cylinder unit is connected with a valve control assembly I in an integrated valve block 33 through a balance valve 24 and a pipeline, a lower gripper telescopic oil cylinder 28 in a lower gripper telescopic oil cylinder unit is connected with a valve control assembly II in the integrated valve block 33 through a hydraulic lock 25 and a pipeline, a lower gripper transverse moving oil cylinder 29 in the lower gripper transverse moving oil cylinder unit is connected with a valve control assembly III in the integrated valve block 33 through a hydraulic lock 25 and a pipeline, an upper gripper rotary oil cylinder 30 in the upper gripper rotary oil cylinder unit is connected with a valve control assembly IV in the integrated valve block 33 through a hydraulic lock 25 and a pipeline, a large arm stretching oil cylinder 31 in the large arm stretching oil cylinder unit is connected with a valve control assembly V in the integrated valve block 33 through the balance valve 24 and a pipeline, the large arm rotary oil cylinder 27 and the lower gripper telescopic oil cylinder 28, travel switches are respectively arranged on the lower gripper transverse moving oil cylinder 29, the upper gripper rotating oil cylinder 30 and the large arm telescopic oil cylinder 31;
the integrated valve block 33 comprises a valve control assembly I, a valve control assembly II, a valve control assembly III, a valve control assembly IV, a valve control assembly V which are mutually connected in parallel through pipelines, and an electromagnetic overflow valve 17 which is connected with an input main pipe and an output main pipe, wherein a large-drift-diameter electromagnetic directional valve 19 and a stacked double one-way throttle valve I21 which are sequentially mutually connected in series in the valve control assembly I are connected with a large-arm rotating oil cylinder 27 through a balance valve 24, a small-drift-diameter electromagnetic directional valve 18 and a stacked double one-way throttle valve II20 which are sequentially mutually connected in series in the valve control assembly II are connected with a lower gripper telescopic oil cylinder 28 through a hydraulic lock 25, a one-way valve III 22 is arranged on an input pipeline of the valve control assembly II, the small-drift-diameter electromagnetic directional valve 18 and the stacked double one-way throttle valve II20 which are sequentially mutually connected in series in the valve control assembly III are connected with a lower gripper, the large-drift-diameter electromagnetic reversing valve 19 and the overlapped double one-way throttle valve I21 which are sequentially connected in series in the valve control assembly IV are connected with an upper gripper rotating oil cylinder 30 through a hydraulic lock 25, the large-drift-diameter electromagnetic reversing valve 19 and the overlapped double one-way throttle valve I21 which are sequentially connected in series in the valve control assembly V are connected with a large-arm stretching oil cylinder 31 through a balance valve 24, a one-way valve IV23 is arranged on an input pipeline of the valve control assembly IV, a one-way valve II 13, a pressure measuring joint 14, a pressure measuring pipeline 15 and a pressure gauge 16 are sequentially connected onto an output main pipe through pipelines, and the input main pipe is connected with an input port of an oil tank 1 through a water cooler 11 and;
the pumping module comprises a three-phase asynchronous motor 8 and an axial plunger pump 9, the three-phase asynchronous motor 8 is connected with the axial plunger pump 9 through a coupler 32, an output port of the axial plunger pump 9 is connected with an input header pipe of an integrated valve block 33 through a pipeline and a one-way valve I12, and an input port of the axial plunger pump 9 is connected with an oil absorption filter 3 on the oil tank 1 through a pipeline.
The invention is characterized in that a liquid level meter 2, an oil absorption filter 3, a temperature transmitter 4, a liquid level relay 5, an oil drain ball valve 6, an air filter 7 and an oil return filter 10 are respectively arranged on an oil tank 1, a three-phase asynchronous motor 8 is connected with an axial plunger pump 9 through a coupler 32, and the axial plunger pump 9 is connected with the oil absorption filter 3 on the oil tank 1 through a pipeline to form an integral slag turning worktable hydraulic pump station.
The ports a3 and a4 of two groups of balance valves in the large-arm rotary oil cylinder unit are respectively connected with liquid inlets of rodless cavities of the two large-arm rotary oil cylinders through pipelines, the ports a1 and a2 of the two groups of balance valves are respectively connected with the port A of the integrated valve block through pipelines and joints, the ports B3 and B4 of the two groups of balance valves are respectively connected with liquid outlets of rod cavities of the two large-arm rotary oil cylinders through pipelines, and the ports B1 and B2 of the two groups of balance valves are respectively connected with the port B of the integrated valve block through pipelines.
The ports C3 and C4 of two groups of hydraulic locks in the lower gripper telescopic oil cylinder unit are respectively connected with the liquid inlets of rodless cavities of two lower gripper telescopic oil cylinders through pipelines, the ports C1 and C2 of the two groups of hydraulic locks are respectively connected with the port C of the integrated valve block through pipelines, the ports D3 and D4 of the two groups of hydraulic locks are respectively connected with the liquid outlets of rod cavities of the two lower gripper telescopic oil cylinders through pipelines, and the ports D1 and D2 of the two groups of hydraulic locks are respectively connected with the port D of the integrated valve block through pipelines.
The E3 port and E4 port of two groups of hydraulic locks in the lower gripper traversing oil cylinder unit are respectively connected with the liquid inlets of rodless cavities of two lower gripper traversing oil cylinders through pipelines, the E1 port and E2 port of two groups of hydraulic locks are respectively connected with the E port of an integrated valve block through pipelines, the F3 port and F4 port of two groups of hydraulic locks are respectively connected with the liquid outlets of rod cavities of two lower gripper traversing oil cylinders through pipelines, and the F1 port and F2 port of two groups of hydraulic locks are respectively connected with the F port of the integrated valve block through pipelines.
The G3 port and the G4 port of two groups of hydraulic locks in the upper gripper rotary oil cylinder unit are respectively connected with the liquid inlets of rodless cavities of two upper gripper rotary oil cylinders through pipelines, the G1 port and the G2 port of the two groups of hydraulic locks are respectively connected with the G port of an integrated valve block through pipelines, the H3 port and the H4 port of the two groups of hydraulic locks are respectively connected with the liquid outlets of rod cavities of the two upper gripper rotary oil cylinders through pipelines, and the H1 port and the H2 port of the two groups of hydraulic locks are respectively connected with the H port of the integrated valve block through pipelines.
The j3 port and the j4 port of two groups of balance valves in the large arm stretching oil cylinder unit are respectively connected with liquid inlets of rodless cavities of two large arm stretching oil cylinders through pipelines, the j1 port and the j2 port of the two groups of balance valves are respectively connected with the M port of an integrated valve block through pipelines, the k3 port and the k4 port of the two groups of balance valves are respectively connected with liquid outlets of rod cavities of the two large arm stretching oil cylinders through pipelines, and the k1 port and the k2 port of the two groups of balance valves are respectively connected with the N port of the integrated valve block through pipelines.
The invention relates to an operation method of an integral slag-turning worktable hydraulic system, which is characterized by comprising the following specific processes:
firstly, a tunnel traction locomotive pulls a slag car to stop the slag car in an operation area of an integral slag turning worktable, a three-phase asynchronous motor 8 is started, and an axial plunger pump 9 starts to run in a no-load mode;
then, a first control button is pressed down, an electromagnet Y1 for controlling the electromagnetic overflow valve 17 and an electromagnet Y2 for controlling a large-diameter electromagnetic reversing valve of a large-arm rotary oil cylinder unit are powered on, a piston rod of the large-arm rotary oil cylinder 27 is extended L and then triggers a travel switch S1, an electromagnet Y2 is powered off, an electromagnet Y4 for controlling a small-diameter electromagnetic reversing valve of a lower gripper telescopic oil cylinder unit is powered on, a piston rod of the lower gripper telescopic oil cylinder 28 is extended L and then triggers a travel switch S2, an electromagnet Y4 is powered off, an electromagnet Y6 for controlling a lower gripper transverse-moving oil cylinder unit is powered on, a piston rod of the lower gripper transverse-moving oil cylinder 29 is fully extended and then triggers a travel switch S3, an electromagnet Y6 is powered off, an electromagnet Y8 for controlling a small-diameter electromagnetic reversing valve of an upper gripper rotary oil cylinder unit is powered on, a piston rod of the upper gripper rotary oil cylinder 30 is fully extended and then triggers a travel switch S4, a Y8 is powered off, a large-diameter electromagnetic reversing oil cylinder Y3527 is used for controlling an integral large-arm rotary slag unloading work station, and a slag dumping car is prepared for overturning an electromagnet Y3527, and a slag dumping electric slag dumping car is operated by an electromagnet Y1 and an electromagnet Y366;
next, pressing a second control button, electrifying electromagnets Y1 and Y3, triggering a travel switch S6 after a piston rod of the large arm rotary oil cylinder 27 is completely retracted, electrifying an electromagnet Y3, simultaneously electrifying an electromagnet Y11 of a large-diameter electromagnetic reversing valve for controlling a large arm stretching oil cylinder unit, triggering a travel switch S7 after the piston rod of the large arm stretching oil cylinder 31 is completely retracted, simultaneously electrifying electromagnets Y1 and Y11, unloading the system, and realizing the slag unloading of the carriage of the slag transport vehicle by the action of a turnover positioning mechanism of the integral slag turning table;
finally, a third control button is pressed, an electromagnet Y1 and an electromagnet Y10 of a large-diameter electromagnetic reversing valve for controlling a large arm stretching oil cylinder unit are electrified, a piston rod of the large arm stretching oil cylinder 31 completely extends to trigger a travel switch S8, the electromagnet Y10 is electrified, the electromagnet Y2 is electrified, a piston rod of the large arm rotating oil cylinder 27 completely extends to trigger a travel switch S9, the electromagnet Y2 is electrified, the electromagnet Y9 of the large-diameter electromagnetic reversing valve for controlling the upper gripper rotating oil cylinder unit is electrified, the piston rod of the upper gripper rotating oil cylinder 30 completely retracts to trigger the travel switch S10, the electromagnet Y9 is electrified, the electromagnet Y7 of a small-diameter electromagnetic reversing valve for controlling the lower gripper transversely-moving oil cylinder unit is electrified, the piston rod of the lower gripper transversely-moving oil cylinder 29 completely extends to trigger a travel switch S11, the electromagnet Y7 is electrified, and the electromagnet Y5 of the small-diameter electromagnetic reversing valve for controlling the lower gripper telescoping oil cylinder unit is electrified, the piston rod of the lower gripper telescopic oil cylinder 28 is completely retracted to trigger the travel switch S12, the electromagnet Y5 is powered off, the electromagnet Y3 is powered on, the piston rod of the large arm rotary oil cylinder 27 is completely retracted to trigger the travel switch S6, the electromagnets Y1 and the Y3 are powered off simultaneously, the system is unloaded, the carriage of the slag transport vehicle returns to the state before slag unloading again through resetting of the turnover positioning mechanism of the integral slag turning worktable, so far, a working cycle is completed, and the next slag transport vehicle is waited to be in place.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, the invention further resides in various changes and modifications which fall within the scope of the invention as claimed.
Claims (8)
1. An integral slag-turning workbench hydraulic system is characterized by comprising an oil tank, a hydraulic driving module and a pumping module for connecting the oil tank and the hydraulic driving module, wherein the hydraulic driving module comprises a large arm rotating oil cylinder unit, a lower gripper telescopic oil cylinder unit, a lower gripper transverse moving oil cylinder unit, an upper gripper rotating oil cylinder unit and a large arm stretching oil cylinder unit which are mutually connected in parallel through pipelines;
a large arm rotary oil cylinder in the large arm rotary oil cylinder unit is connected with a valve control assembly I in an integrated valve block through a balance valve and a pipeline, a lower gripper telescopic oil cylinder in a lower gripper telescopic oil cylinder unit is connected with a valve control assembly II in the integrated valve block through a hydraulic lock and a pipeline, a lower gripper transverse oil cylinder in the lower gripper transverse oil cylinder unit is connected with a valve control assembly III in the integrated valve block through a hydraulic lock and a pipeline, an upper gripper rotary oil cylinder in the upper gripper rotary oil cylinder unit is connected with a valve control assembly IV in the integrated valve block through a hydraulic lock and a pipeline, a large arm stretching oil cylinder in the large arm stretching oil cylinder unit is connected with a valve control assembly V in the integrated valve block through a balance valve and a pipeline, and travel switches are respectively arranged on the large arm rotary oil cylinder, the lower gripper telescopic oil cylinder, the lower gripper transverse oil cylinder, the upper gripper rotary oil cylinder and the large arm telescopic oil cylinder;
the integrated valve block comprises a valve control assembly I, a valve control assembly II, a valve control assembly III, a valve control assembly IV, a valve control assembly V and an electromagnetic overflow valve connected with an input main pipe and an output main pipe, which are mutually connected in parallel through a pipeline, a large-drift-diameter electromagnetic directional valve and a stacked double one-way throttle valve I which are sequentially connected in series with each other in the valve control assembly I are connected with a large-arm rotary oil cylinder through a balance valve, a small-drift-diameter electromagnetic directional valve and a stacked double one-way throttle valve II which are sequentially connected in series with each other in the valve control assembly II are connected with a telescopic oil cylinder of a lower gripping apparatus through a hydraulic lock, a small-drift-diameter electromagnetic directional valve and a stacked double one-way throttle valve II which are sequentially connected in series with each other in the valve control assembly III are connected with a transverse oil cylinder of the lower gripping apparatus through a hydraulic lock, a large-drift-diameter electromagnetic, the large-drift-diameter electromagnetic reversing valve and the overlapped double one-way throttle valve I which are sequentially connected in series in the valve control assembly V are connected with the large-arm stretching oil cylinder through a balance valve, the input main pipe is sequentially connected with a one-way valve II, a pressure measuring joint, a pressure measuring pipeline and a pressure gauge through pipelines, and the output main pipe is sequentially connected with the input port of the oil tank through a water cooler and an oil return filter;
the pumping module comprises a three-phase asynchronous motor and an axial plunger pump, the three-phase asynchronous motor is connected with the axial plunger pump through a coupler, an output port of the axial plunger pump is connected with an input header pipe of the integrated valve block through a pipeline and a one-way valve I, and an input port of the axial plunger pump is connected with an oil suction filter on an oil tank through a pipeline.
2. The integrated slag turning table hydraulic system according to claim 1, characterized in that: the oil tank is respectively provided with a liquid level meter, an oil absorption filter, a temperature transmitter, a liquid level relay, an oil discharge ball valve, an air filter and an oil return filter, the three-phase asynchronous motor is connected with the axial plunger pump through a coupler, and the axial plunger pump is connected with the oil absorption filter on the oil tank through a pipeline to form an integral slag turning workbench hydraulic pump station.
3. The integrated slag turning table hydraulic system according to claim 1, characterized in that: the ports a3 and a4 of two groups of balance valves in the large-arm rotary oil cylinder unit are respectively connected with liquid inlets of rodless cavities of the two large-arm rotary oil cylinders through pipelines, the ports a1 and a2 of the two groups of balance valves are respectively connected with the port A of the integrated valve block through pipelines and joints, the ports B3 and B4 of the two groups of balance valves are respectively connected with liquid outlets of rod cavities of the two large-arm rotary oil cylinders through pipelines, and the ports B1 and B2 of the two groups of balance valves are respectively connected with the port B of the integrated valve block through pipelines.
4. The integrated slag turning table hydraulic system according to claim 1, characterized in that: the ports C3 and C4 of two groups of hydraulic locks in the lower gripper telescopic cylinder unit are respectively connected with the liquid inlets of the rodless cavities of the two lower gripper telescopic cylinders through pipelines, the ports C1 and C2 of the two groups of hydraulic locks are respectively connected with the port C of the integrated valve block through pipelines, the ports D3 and D4 of the two groups of hydraulic locks are respectively connected with the liquid outlets of the rod cavities of the two lower gripper telescopic cylinders through pipelines, and the ports D1 and D2 of the two groups of hydraulic locks are respectively connected with the port D of the integrated valve block through pipelines.
5. The integrated slag turning table hydraulic system according to claim 1, characterized in that: the E3 ports and E4 ports of two groups of hydraulic locks in the lower gripper transverse oil cylinder unit are respectively connected with liquid inlets of rodless cavities of the two lower gripper transverse oil cylinders through pipelines, the E1 ports and E2 ports of the two groups of hydraulic locks are respectively connected with the E port of the integrated valve block through pipelines, the F3 ports and F4 ports of the two groups of hydraulic locks are respectively connected with liquid outlets of rod cavities of the two lower gripper transverse oil cylinders through pipelines, and the F1 ports and F2 ports of the two groups of hydraulic locks are respectively connected with the F port of the integrated valve block through pipelines.
6. The integrated slag turning table hydraulic system according to claim 1, characterized in that: the G3 ports and the G4 ports of two groups of hydraulic locks in the upper gripper rotary oil cylinder unit are respectively connected with the liquid inlets of the rodless cavities of the two upper gripper rotary oil cylinders through pipelines, the G1 ports and the G2 ports of the two groups of hydraulic locks are respectively connected with the G port of the integrated valve block through pipelines, the H3 ports and the H4 ports of the two groups of hydraulic locks are respectively connected with the liquid outlets of the rod cavities of the two upper gripper rotary oil cylinders through pipelines, and the H1 ports and the H2 ports of the two groups of hydraulic locks are respectively connected with the H port of the integrated valve block through pipelines.
7. The integrated slag turning table hydraulic system according to claim 1, characterized in that: j3 ports and j4 ports of two groups of balance valves in the large arm stretching oil cylinder unit are respectively connected with liquid inlets of rodless cavities of the two large arm stretching oil cylinders through pipelines, j1 ports and j2 ports of the two groups of balance valves are respectively connected with M ports of the integrated valve block through pipelines, k3 ports and k4 ports of the two groups of balance valves are respectively connected with liquid outlets of rod cavities of the two large arm stretching oil cylinders through pipelines, and k1 ports and k2 ports of the two groups of balance valves are respectively connected with N ports of the integrated valve block through pipelines.
8. An operation method of the hydraulic system of the integral slag turning table according to claim 1 is characterized by comprising the following specific processes:
firstly, a tunnel traction locomotive pulls a slag transport vehicle to stop the slag transport vehicle in an operation area of an integral slag turning worktable, a three-phase asynchronous motor is started, and an axial plunger pump starts to run in a no-load mode;
then, a first control button is pressed down, an electromagnet Y1 for controlling an electromagnetic overflow valve and an electromagnet Y2 for controlling a large-diameter electromagnetic reversing valve of a large-arm rotary oil cylinder unit are powered on, a piston rod of a large-arm rotary oil cylinder extends L and then triggers a travel switch S1, an electromagnet Y2 is powered off, an electromagnet Y4 for controlling a small-diameter electromagnetic reversing valve of a lower gripper telescopic oil cylinder unit is powered on, a piston rod of a lower gripper telescopic oil cylinder extends L2 and then triggers a travel switch S2, an electromagnet Y4 is powered off, an electromagnet Y8 for controlling a small-diameter electromagnetic reversing valve of a lower gripper oil cylinder transverse moving unit is powered on, a piston rod of the upper gripper rotary oil cylinder extends completely and then triggers a travel switch S4, an electromagnet Y8 is powered off, an electromagnet Y8 for controlling a large-diameter electromagnetic reversing valve of an upper gripper rotary oil cylinder unit is powered on, a piston rod of the upper gripper rotary oil cylinder extends completely and then triggers a travel switch S4, an electromagnet Y8 is powered on, an electromagnet Y358 for controlling an integral large-diameter electromagnetic reversing valve of an electromagnet Y3527 and a slag discharging station for a large-arm rotary slag dumping car is prepared, and a slag dumping car is operated after the piston rod of the upper gripper rotary oil cylinder unit is extended and the large-dumping car is operated by an electromagnet Y1, and a slag dumping electric slag dumping car is operated by an electromagnet Y1, and a large-;
next, pressing a second control button, electrifying an electromagnet Y1 and an electromagnet Y3, triggering a travel switch S6 after a piston rod of the large-arm rotary oil cylinder is completely withdrawn, electrifying the electromagnet Y3, simultaneously electrifying an electromagnet Y11 of a large-diameter electromagnetic reversing valve for controlling a large-arm stretching oil cylinder unit, triggering a travel switch S7 after the piston rod of the large-arm stretching oil cylinder is completely withdrawn, simultaneously electrifying the electromagnet Y1 and the electromagnet Y11, unloading the system, and realizing the slag unloading of the carriage of the slag transport vehicle by the action of the turnover positioning mechanism of the integral slag turnover worktable;
finally, a third control button is pressed, an electromagnet Y1 and an electromagnet Y10 of a large-diameter electromagnetic reversing valve for controlling a large arm stretching oil cylinder unit are electrified, a piston rod of the large arm stretching oil cylinder completely extends to trigger a travel switch S8, the electromagnet Y10 is electrified, meanwhile, an electromagnet Y2 is electrified, a piston rod of the large arm rotating oil cylinder completely extends to trigger a travel switch S9, an electromagnet Y2 is electrified, the electromagnet Y9 for controlling the large-diameter electromagnetic reversing valve of the upper gripper rotating oil cylinder unit is electrified, the piston rod of the upper gripper rotating oil cylinder completely retracts to trigger a travel switch S10, an electromagnet Y9 is electrified, the electromagnet Y7 for controlling a small-diameter electromagnetic reversing valve of a lower gripper transverse moving oil cylinder unit is electrified, the piston rod of the lower gripper transverse moving oil cylinder completely extends to trigger a travel switch S11, the electromagnet Y7 is electrified, and the electromagnet Y5 for controlling a small-diameter electromagnetic reversing valve of the lower gripper stretching oil cylinder unit is electrified, the piston rod of the lower gripper telescopic oil cylinder completely retracts to trigger the travel switch S12, the electromagnet Y5 is powered off, the electromagnet Y3 is powered on, the piston rod of the large arm rotary oil cylinder completely retracts to trigger the travel switch S6, the electromagnet Y1 and the electromagnet Y3 are powered off simultaneously, the system is unloaded, the carriage of the slag transport vehicle returns to the state before slag unloading again through resetting of the overturning positioning mechanism of the integral slag overturning worktable, so that a working cycle is completed, and the next slag transport vehicle is waited to be in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238382.4A CN110056552B (en) | 2019-03-27 | 2019-03-27 | Integral slag turning workbench hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238382.4A CN110056552B (en) | 2019-03-27 | 2019-03-27 | Integral slag turning workbench hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056552A CN110056552A (en) | 2019-07-26 |
| CN110056552B true CN110056552B (en) | 2020-07-10 |
Family
ID=67317486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910238382.4A Active CN110056552B (en) | 2019-03-27 | 2019-03-27 | Integral slag turning workbench hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056552B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439796B (en) * | 2021-11-16 | 2024-05-03 | 无锡华联科技集团有限公司 | Hydraulic equipment for large-scale thin plate overturning multi-group independent modularized pump station |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL157689B1 (en) * | 1988-06-01 | 1992-06-30 | Polmag | Loader's hydraulic system |
| CN102251996A (en) * | 2011-07-05 | 2011-11-23 | 天津柳工机械有限公司 | Engineering mechanical load sensing hydraulic system |
| CN203022763U (en) * | 2012-11-30 | 2013-06-26 | 中煤科工集团重庆研究院 | Hydraulic control system of drill loader |
| CN203157804U (en) * | 2013-03-20 | 2013-08-28 | 上海宝钢工业技术服务有限公司 | Hydraulic system of tilting mechanism of self-discharging type carrier vehicle |
| CN203516248U (en) * | 2013-08-23 | 2014-04-02 | 包头职业技术学院 | Hydraulic system of underground slag trolley tilter |
| CN203783997U (en) * | 2014-04-25 | 2014-08-20 | 四川万冠机电技术有限公司 | Constant-power hydraulic power system for waste compacting station |
| CN203879828U (en) * | 2014-06-09 | 2014-10-15 | 徐州徐工随车起重机有限公司 | Hydraulic control system for lateral-loading compression-type garbage truck |
| CN105041732B (en) * | 2015-09-18 | 2018-01-02 | 上海中联重科桩工机械有限公司 | With the control system and rotary drilling rig for trembling native function automatically |
| CN206017292U (en) * | 2016-06-25 | 2017-03-15 | 山东普锐赛斯智能科技有限公司 | A kind of hydraulic means for the two-way container tipping machine of binary channels |
| CN206206301U (en) * | 2016-08-24 | 2017-05-31 | 中铁隧道股份有限公司 | A kind of shield/TBM quickly misses the stop the hydraulic control circuit of stepping platform |
| CN206159147U (en) * | 2016-09-30 | 2017-05-10 | 济南金钟电子衡器股份有限公司 | Formula hydraulic pressure of turning on one's side turns over board liquid accuse system |
| CN107191439B (en) * | 2017-06-23 | 2018-07-27 | 武汉科技大学 | A kind of overturning machine hydraulic system |
| CN107559250A (en) * | 2017-08-28 | 2018-01-09 | 上海诺倬力机电科技有限公司 | Digit Control Machine Tool hydraulic station |
| CN108316096B (en) * | 2018-01-22 | 2023-08-04 | 柳工无锡路面机械有限公司 | Integrated control hydraulic system of road paver and control method thereof |
-
2019
- 2019-03-27 CN CN201910238382.4A patent/CN110056552B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110056552A (en) | 2019-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204354880U (en) | Dumping car driving and lifting combined control system | |
| CN110056552B (en) | Integral slag turning workbench hydraulic system | |
| CN206203297U (en) | Cubic metre of earth and stone transmitting device | |
| CN104527702A (en) | Rail construction engineering van capable of changing rails | |
| CN107059716B (en) | Hydraulic control sprinkling cleaning system | |
| CN101444781A (en) | Device for cleaning vanadium-removing copper wire balls | |
| CN107061430A (en) | The hoisting system of minus flow hydraulic circuit control | |
| CN206510811U (en) | A kind of long-range supply and discharge waterwheel | |
| CN212868045U (en) | Hydraulic system of aerial work platform | |
| CN103216097A (en) | Multifunctional concrete pump truck | |
| CN202672742U (en) | Multi-function concrete pump truck | |
| CN107761641A (en) | A kind of pure electric road cleaning vehicle | |
| CN105314547A (en) | Hydraulic lifting equipment for constructional engineering and operation method | |
| CN205955753U (en) | Lining cutting platform truck concrete fills diverging device | |
| CN110092217B (en) | Integral slag turning workbench for dumping slag soil in carriage of slag car in tunnel | |
| CN204383486U (en) | A kind of rail-variable track construction engineering truck | |
| CN207566824U (en) | A kind of fuel and electric hybrid controls high-altitude operation vehicle | |
| CN202754177U (en) | Cast pipe turning, lifting and rotating machine | |
| CN206278000U (en) | Flat-bed transport vehicle with hydraulic lifting system | |
| CN105822103A (en) | Hydraulic system for intelligent, three-dimensional and avoiding-free parking | |
| CN203393756U (en) | Novel loading and unloading vehicle | |
| CN103216098A (en) | Small concrete conveying pump truck | |
| CN207063990U (en) | A kind of automatic inverted arch trestle | |
| CN205168275U (en) | Hydraulic control draws brick car | |
| CN218141757U (en) | Hydraulic control box of rubber-tyred 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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Junhua Inventor after: Liu Erzhao Inventor after: Yang Bin Inventor after: Zhang Weimin Inventor after: Ding Xizhao Inventor after: Xue Jiangsong Inventor after: Chen Yisheng Inventor after: Wan Xiaojun Inventor after: Chen Hongming Inventor after: Wang Peichuan Inventor after: Hu Fangzhao Inventor after: Ye Zhong Inventor after: Shen Huiyu Inventor after: Lu Haojie Inventor after: Xing Xunke Inventor after: Yuan Youchao Inventor before: Yang Junhua Inventor before: Zhang Weimin Inventor before: Ding Xizhao Inventor before: Zhang Long Inventor before: Xue Jiangsong Inventor before: Wan Xiaojun Inventor before: Ding Yonghua Inventor before: Hu Fangzhao Inventor before: Wang Peichuan Inventor before: Shen Huiyu Inventor before: Lu Haojie Inventor before: Xing Xunke Inventor before: Liu Erzhao Inventor before: Yang Bin Inventor before: Xu Jia |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |