CN108716490B - Hydraulic system of lifting appliance of stacker - Google Patents
Hydraulic system of lifting appliance of stacker Download PDFInfo
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- CN108716490B CN108716490B CN201810968745.5A CN201810968745A CN108716490B CN 108716490 B CN108716490 B CN 108716490B CN 201810968745 A CN201810968745 A CN 201810968745A CN 108716490 B CN108716490 B CN 108716490B
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- shifting
- pressure control
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Classifications
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- 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
- F15B13/025—Pressure reducing valves
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- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
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- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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- 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
Abstract
The invention discloses a hydraulic system of a lifting appliance of a stacker, wherein the flow setting of a throttle valve I and a throttle valve II and the area ratio of a rod cavity to a rodless cavity of a side-shifting oil cylinder are in a proportional relation, so that the oil return quantity and the oil inlet quantity of the rod cavity and the rodless cavity are ensured to be consistent in left-right side shifting speed, and the whole side shifting action of the lifting appliance is completed without shaking; the first position sensor, the second position sensor, the third position sensor and the position sensor are used for sensing the position change of the first telescopic oil cylinder and the second telescopic oil cylinder to acquire whether the two side arms of the lifting appliance reach the expansion or contraction limit position, at the moment, the first two-position two-way throttle solenoid valve, the second two-position two-way throttle solenoid valve, the third two-position two-way throttle solenoid valve and the fourth two-position two-way throttle solenoid valve are controlled to throttle, the expansion or contraction buffering of the two side arms of the lifting appliance is controlled, no impact is generated, and the work stability of the stacker is ensured.
Description
Technical Field
The invention belongs to the field of logistics transportation machinery, and particularly relates to a lifting appliance hydraulic system of a stacker.
Background
The container empty container stacking machine is a necessary quick flowing machine for ports, wharfs, goods yards and container production enterprises, realizes quick stacking, transferring and offline use of empty containers, is provided with a lifting appliance at the front part for grabbing containers, realizes the carrying and stacking of the containers, and has a lifting appliance left-right side shifting function, a locking head spin locking function and a left-right arm body stretching and shrinking function, thereby realizing the grabbing requirements that the lifting appliance drives the containers to move left and right and containers with different specifications, but the lifting appliance has the following problems in the use process: 1. in view of the limitation of the design of the structural member of the lifting appliance, the side-shifting oil cylinders are required to be arranged by adopting piston cylinders, the left-right shifting speed is uneven, when the lifting appliance grabs a container, the lifting appliance and the container are frequently shifted to the left and the right in the whole body, the speed of shifting to the left and the right is suddenly changed, the container is relatively rocked, and the transverse stability of the whole vehicle is influenced; 2. the hydraulic system of the lifting appliance does not buffer when the lifting appliance stretches and contracts in place, so that the impact is large, noise is generated, the service lives of stress components such as structural components, portal rollers and the like are influenced, the whole vehicle is rocked, and the feeling of a driver is poor.
Disclosure of Invention
The invention aims to provide a hydraulic system of a lifting appliance of a stacker, which ensures that the lifting appliance does not shake left and right when grabbing a container sideways, and ensures that the lifting appliance is buffered when rapidly stretching and shrinking in place.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the lifting appliance hydraulic system of the stacker comprises a main pressure reducing valve communicated with a main hydraulic system, wherein the main pressure reducing valve is provided with an oil inlet A and an oil outlet B, a port C of the main pressure reducing valve is communicated with a rodless cavity of a side-shifting oil cylinder through a side-shifting three-way electromagnetic valve, a side-shifting pressure control valve and a throttle valve II, and a rod cavity of the side-shifting oil cylinder is communicated with a port D of the main pressure reducing valve through a throttle valve I, a side-shifting pressure control valve and a side-shifting three-way electromagnetic valve; the C port of the main pressure reducing valve is communicated with rodless cavities of the first telescopic cylinder and the second telescopic cylinder respectively through a telescopic three-position two-way electromagnetic valve and a telescopic pressure control valve, and the rod cavities of the first telescopic cylinder and the second telescopic cylinder are communicated with the D port of the main pressure reducing valve through a telescopic pressure control valve and a telescopic three-position four-way electromagnetic valve respectively; the two-position two-way throttle solenoid valve I and the two-position two-way throttle solenoid valve II are provided with a first position sensor and a second position sensor which are used for sensing the position change of a rod cavity and a rodless cavity of the telescopic cylinder I, and the two-position two-way throttle solenoid valve III are provided with a rodless cavity and a position sensor III and a position sensor which are used for sensing the position change of the rod cavity of the telescopic cylinder II.
The inlet of the side-shifting three-position four-way electromagnetic valve is communicated with the inlet of the side-shifting three-position four-way electromagnetic valve, the oil outlet of the side-shifting three-position four-way electromagnetic valve is respectively communicated with the port A4 and the port A5 on the side-shifting pressure control valve, the port A2 on the side-shifting pressure control valve is communicated with the port A6 of the throttle valve I, the port A7 of the throttle valve I is communicated with the port A10 of the side-shifting oil cylinder, the port A3 on the side-shifting pressure control valve is communicated with the port A8 of the throttle valve II, the port A9 of the throttle valve II is communicated with the port A11 of the side-shifting oil cylinder, and the port A1 on the side-shifting pressure control valve is communicated with the port D of the main pressure reducing valve.
The C port is communicated with the inlet of the telescopic three-position two-way electromagnetic valve, the oil outlets of the telescopic three-position two-way electromagnetic valve are respectively communicated with the C6 port and the C7 port on the telescopic pressure control valve, the C2 port, the C3 port, the C4 port and the C5 port on the telescopic pressure control valve are respectively communicated with the C8 port, the C10 port, the C12 port and the C14 port on the two-position two-way electromagnetic valve, the three-position two-way electromagnetic valve and the four-position two-way electromagnetic valve, the ports C9, C11, C13 and C15 of the two-position two-way throttle solenoid valve I, the two-position two-way throttle solenoid valve II, the two-position two-way throttle solenoid valve III and the two-position two-way throttle solenoid valve IV are respectively communicated with the ports C16, C17, C18 and C19 of the telescopic cylinder I and the telescopic cylinder II, the signals of the position sensor I, the position sensor II and the position sensor III respectively control the operation opening of the two-position two-way throttle solenoid valve I, the two-position two-way throttle solenoid valve II, the two-position two-way throttle solenoid valve III and the two-position two-way throttle solenoid valve IV, and the port C1 of the telescopic pressure control valve is communicated with the port D of the main pressure reducing valve.
The hydraulic lock is characterized in that the port C is communicated with an inlet of a three-position four-way solenoid valve of the rotary lock, an oil outlet of the three-position four-way solenoid valve of the rotary lock is respectively communicated with a port B6 and a port B7 on a pressure control valve of the rotary lock, a port B2 and a port B3 on the pressure control valve of the rotary lock are respectively communicated with a port B8 and a port B9 on a second hydraulic lock, a port B11 and a port B10 of the second hydraulic lock are respectively communicated with a port B12 and a port B13 of a first hydraulic lock cylinder, a port B5 and a port B4 on the pressure control valve of the rotary lock are respectively communicated with a port B14 and a port B15 on the first hydraulic lock, a port B16 and a port B17 on the first hydraulic lock are respectively communicated with a port B18 and a port B19 on the second hydraulic lock cylinder, and a port B1 on the pressure control valve of the rotary lock is communicated with a port D of a main pressure reducing valve.
According to the technical scheme, when the whole machine works, the main hydraulic system of the empty container stacking machine feeds oil to the port A of the main pressure reducing valve through the port P, and feeds the oil to the hydraulic system of the lifting appliance through the port C of the main pressure reducing valve, when all lifting appliances do not act, hydraulic oil flows back to the port D of the main pressure reducing valve to enter the main pressure reducing valve, and then flows back to the hydraulic oil tank T from the port B of the main pressure reducing valve, so that a hydraulic loop cycle without action is completed; a throttle valve I and a throttle valve II are respectively arranged between the side-shifting pressure control valve and a rod cavity and a rodless cavity of the side-shifting oil cylinder, the flow rate of the throttle valve I and the throttle valve II is set in proportional relation with the area ratio of the rod cavity and the rodless cavity of the side-shifting oil cylinder, the oil return quantity and the oil inlet quantity of the rod cavity and the rodless cavity are ensured to be consistent in left-right side shifting speed, and thus the whole side shifting action of the lifting appliance is completed without shaking; the telescopic pressure control valve and the telescopic oil cylinder I are respectively provided with a first two-position two-way throttle solenoid valve and a second two-position two-way throttle solenoid valve between a rod cavity and a rodless cavity, the telescopic pressure control valve and the telescopic oil cylinder II are respectively provided with a third two-position two-way throttle solenoid valve and a fourth two-position two-way throttle solenoid valve between the rodless cavity and the rod cavity, and the position sensor is used for sensing the position change of the telescopic oil cylinder I and the telescopic oil cylinder II to acquire whether the two side arms of the lifting appliance reach the stretching or shrinking limit position or not by arranging the position sensor I, the position sensor II and the position sensor II, so that the first two-position two-way throttle solenoid valve, the second two-position two-way throttle solenoid valve II, the third two-position two-way throttle solenoid valve II and the fourth two-position two-way throttle solenoid valve II are controlled to throttle, the stretching or shrinking buffering of the arms of the lifting appliance are controlled, the lifting appliance is not to generate impact, and the working stability of the stacker is ensured.
Drawings
FIG. 1 is a schematic diagram of the connection of the components of the present invention.
Detailed Description
The invention is further described with reference to fig. 1:
the lifting appliance hydraulic system of the stacker comprises a main reducing valve 1 communicated with a main hydraulic system, wherein the main reducing valve 1 is provided with an oil inlet A and an oil outlet B, a port C of the main reducing valve 1 is communicated with a rodless cavity of a side shifting oil cylinder 16 through a side shifting three-way electromagnetic valve 2, a side shifting pressure control valve 3 and a throttle valve II 10, and a rod cavity of the side shifting oil cylinder 16 is communicated with a port D of the main reducing valve 1 through a throttle valve I9, a side shifting pressure control valve 3 and a side shifting three-way electromagnetic valve 2; the C port of the main pressure reducing valve 1 is communicated with rodless cavities of a first telescopic cylinder 19 and a second telescopic cylinder 20 through a second telescopic three-position two-way electromagnetic valve 11 and a third telescopic pressure control valve 8 respectively, and the rodless cavities of the first telescopic cylinder 19 and the second telescopic cylinder 20 are communicated with the D port of the main pressure reducing valve 1 through a first two-position two-way electromagnetic valve 12 and a fourth telescopic pressure control valve 8 and a fourth telescopic three-position four-way electromagnetic valve 11 respectively; the two-position two-way throttle solenoid valve I12 and the two-position two-way throttle solenoid valve II 13 are provided with a first position sensor 21 and a second position sensor 22 for sensing the position change of a rod cavity and a rodless cavity of the telescopic cylinder I19, and the two-position two-way throttle solenoid valve III 14 and the two-position two-way throttle solenoid valve III 15 are provided with a rodless cavity, a third position sensor 23 and a position sensor 24 for sensing the position change of the rod cavity of the telescopic cylinder II 20.
When the whole machine works, the main hydraulic system of the container empty-box stacking machine feeds oil to an A port of the main pressure reducing valve 1 through a P port, and feeds the oil to the lifting appliance hydraulic system through a C port on the main pressure reducing valve 1, when all lifting appliances do not act, hydraulic oil flows back to a D port on the main pressure reducing valve 1 to enter the main pressure reducing valve 1, and then flows back to the hydraulic oil tank T from a B port on the main pressure reducing valve 1, so that a hydraulic loop cycle without action is completed; a throttle valve I9 and a throttle valve II 10 are respectively arranged between the side-shifting pressure control valve 3 and the rod cavity and the rodless cavity of the side-shifting oil cylinder 16, the flow rate of the throttle valve I9 and the throttle valve II 10 is set in proportion to the area ratio of the rod cavity and the rodless cavity of the side-shifting oil cylinder 16, and the oil return quantity and the oil inlet quantity of the rod cavity and the rodless cavity are ensured to cause the left side shifting speed and the right side shifting speed to be consistent, so that the whole side shifting action of the lifting appliance is completed, and shaking does not occur; the two-position two-way throttle solenoid valve I12 and the two-position two-way throttle solenoid valve II 13 are respectively arranged between the telescopic pressure control valve 8 and the rod cavity and the rodless cavity of the telescopic cylinder I19, the two-position two-way throttle solenoid valve III 14 and the two-position two-way throttle solenoid valve IV 15 are respectively arranged between the telescopic pressure control valve 8 and the rodless cavity and the rod cavity of the telescopic cylinder II 20, and the position sensor I21, the position sensor II 22, the position sensor III 23 and the position sensor 24 are used for sensing whether the position change of the telescopic cylinder I19 and the telescopic cylinder II 20 reaches the stretching or shrinking limit position or not and controlling the two-position two-way throttle solenoid valve I12, the two-position two-way throttle solenoid valve II 13, the two-position two-way throttle solenoid valve III 14 and the two-position two-way throttle solenoid valve IV 15 to throttle, controlling stretching or shrinking buffering of arms of the two sides of the lifting appliance, so that no impact is generated and the working stability of the stacking machine is ensured.
The port C is communicated with the inlet of the side-shifting three-position four-way electromagnetic valve 2, the oil outlet of the side-shifting three-position four-way electromagnetic valve 2 is respectively communicated with the port A4 and the port A5 on the side-shifting pressure control valve 3, the port A2 on the side-shifting pressure control valve 3 is communicated with the port A6 of the throttle valve I9, the port A7 of the throttle valve I9 is communicated with the port A10 of the side-shifting oil cylinder 16, the port A3 on the side-shifting pressure control valve 3 is communicated with the port A8 of the throttle valve II 10, the port A9 of the throttle valve II 10 is communicated with the port A11 of the side-shifting oil cylinder 16, and the port A1 on the side-shifting pressure control valve 3 is communicated with the port D of the main pressure reducing valve 1. Wherein the port a11 is disposed at the rodless cavity end of the side shift cylinder 16 and the port a10 is disposed at the rod cavity end of the side shift cylinder 16.
The C port is communicated with the inlet of the telescopic three-position two-way electromagnetic valve 11, the oil outlet of the telescopic three-position two-way electromagnetic valve 11 is respectively communicated with the C6 port and the C7 port on the telescopic pressure control valve 8, the C2 port, the C3 port, the C4 port and the C5 port on the telescopic pressure control valve 8 are respectively communicated with the first 12 port, the second 13 port, the third 14 port, the C8 port, the C10 port, the C12 port and the C14 port on the fourth 15 port of the two-position two-way electromagnetic valve, the first 12 port, the second 13 port, the third 14 port, the C9 port, the C11 port, the C13 port and the C15 port on the fourth 15 port of the two-position two-way electromagnetic valve are respectively communicated with the first 19 port of the telescopic cylinder, the C16 port, the C17 port, the C18 port and the C19 port on the second 20 port of the telescopic cylinder, the first 21 port, the second 22 port of the position sensor, the third 23 port and the position sensor 24 are respectively communicated with the first 12 port, the second 13 port and the fourth 14 port of the two-position sensor, the two-way electromagnetic valve, the two-1 port and the two-port 15 port of the two-throttle electromagnetic valve are respectively controlled by the two-position sensor 24, and the two-way electromagnetic valve is respectively communicated with the two-1 port 1. The C17 port is arranged at the rodless cavity end part of the first telescopic cylinder 19, the C16 port is arranged at the rod cavity end part of the first telescopic cylinder 19, the C18 port is arranged at the rodless cavity end part of the second telescopic cylinder 20, and the C19 port is arranged at the rod cavity end part of the second telescopic cylinder 20.
The C port is communicated with the inlet of the three-position four-way solenoid valve 4 of the rotary lock, the oil outlet of the three-position four-way solenoid valve 4 of the rotary lock is respectively communicated with the B6 port and the B7 port on the rotary lock pressure control valve 5, the B2 port and the B3 port on the rotary lock pressure control valve 5 are respectively communicated with the B8 port and the B9 port on the hydraulic lock II 7, the B11 port and the B10 port of the hydraulic lock II 7 are respectively communicated with the B12 port and the B13 port of the rotary lock cylinder I17, the B5 port and the B4 port on the rotary lock pressure control valve 5 are respectively communicated with the B14 port and the B15 port on the hydraulic lock I6, the B16 port and the B17 port on the hydraulic lock I6 are respectively communicated with the B18 port and the B19 port on the rotary lock cylinder II 18, and the B1 port on the rotary lock pressure control valve 5 is communicated with the D port of the main pressure reducing valve 1. Wherein the port B13 is arranged at the rodless cavity end part of the first rotary lock cylinder 17, the port B12 is arranged at the rod cavity end part of the first rotary lock cylinder 17, the port B18 is arranged at the rodless cavity end part of the second rotary lock cylinder 18, and the port B19 is arranged at the rod cavity end part of the second rotary lock cylinder 18.
The working process is as follows:
when the lifting appliance needs to do side-shifting action, the handle switch signals control coils Y1 and Y2 on the side-shifting three-way four-way electromagnetic valve 2 to supply oil to the side-shifting pressure control valve 3, meanwhile, the pressure control valve in the side-shifting pressure control valve 3 controls the pressure of two cavities of the side-shifting oil cylinder 16, meanwhile, the flow setting of the throttle valve I9 and the throttle valve II 10 and the area ratio of the rod cavity to the rodless cavity of the side-shifting oil cylinder 16 are in proportional relation, oil return quantity and oil inlet quantity of the rod cavity and the rodless cavity are ensured to be consistent, so that the whole side-shifting action of the lifting appliance is completed, and shaking cannot occur.
When the lifting appliance needs to be in a screwing action, a handle switch signal controls coils Y3 and Y4 on the three-position four-way electromagnetic valve 4 of the screwing, hydraulic oil is supplied to the screwing pressure control valve 5 through the three-position four-way electromagnetic valve 4 of the screwing, meanwhile, the screwing pressure control valve 5 controls the pressures of two cavities of the first 17 and the second 18 of the screwing cylinders so as to meet the actual screwing pressure setting requirement, meanwhile, the first 6 and the second 7 of the hydraulic locks ensure that the screwing cannot be automatically released under the static working condition, the box grabbing safety is ensured, and the container cannot fall off from the lock head.
When the lifting appliance needs to extend and retract the two side arms, a handle switch signal controls coils Y5 and Y6 on the telescopic three-position two-way electromagnetic valve 11 to supply oil to the telescopic pressure control valve 8, a valve core inside the telescopic pressure control valve 8 ensures pressure requirements of two cavities of the telescopic oil cylinder I19 and the telescopic oil cylinder II 20, when the two side arms extend or retract to a limit position, the position sensor I21, the position sensor II 22, the position sensor III 23 and the position sensor 24 are triggered, signals of the position sensor I21, the position sensor II 22, the position sensor III 23 and the position sensor 24 control the two-position two-way electromagnetic valve I12, the two-position two-way electromagnetic valve II 13, the two-position two-way electromagnetic valve III 14 and the two-way electromagnetic valve IV 15 through a main electric control system, the effective opening stroke of the position sensor I21, the position sensor II 22, the position sensor III 23 and the position sensor 24 is guaranteed to be best in 45-60 mm, and the two-position two-way electromagnetic valve II 12, the two-way electromagnetic valve II 13 and the two-way electromagnetic valve IV are not required to be connected with a buffer bin, the two-side arm II/IV is connected with a buffer bin, the lifting appliance is not required to extend or retract by the two-way electromagnetic valve IV (the main electric control system is high-speed buffer, the two-speed buffer side arm Q and the two-throttle valve Q and the buffer container buffer device is guaranteed, the two-stop valve Q and the buffer container is 20 is full, or the buffer throttle valve is full).
Claims (2)
1. The utility model provides a stacker hoist hydraulic system, includes main relief pressure valve (1) with main hydraulic system intercommunication, main relief pressure valve (1) are equipped with oil inlet A, oil-out B, its characterized in that: the C port of the main pressure reducing valve (1) is communicated with a rodless cavity of the side shifting oil cylinder (16) through the side shifting three-way electromagnetic valve (2), the side shifting pressure control valve (3) and the throttle valve II (10), and a rod cavity of the side shifting oil cylinder (16) is communicated with the D port of the main pressure reducing valve (1) through the throttle valve I (9), the side shifting pressure control valve (3) and the side shifting three-way electromagnetic valve (2);
the C port of the main pressure reducing valve (1) is communicated with rodless cavities of a first telescopic cylinder (19) and a second telescopic cylinder (20) through a second telescopic three-position two-way electromagnetic valve (11) and a third telescopic pressure control valve (8) respectively, and the rod cavities of the first telescopic cylinder (19) and the second telescopic cylinder (20) are communicated with the D port of the main pressure reducing valve (1) through a first telescopic pressure control valve (8) and a fourth telescopic three-position four-way electromagnetic valve (11) respectively; the two-position two-way throttle solenoid valve I (12) and the two-position two-way throttle solenoid valve II (13) are provided with a first position sensor (21) and a second position sensor (22) for sensing the position change of a rod cavity and a rodless cavity of the telescopic cylinder I (19), and the two-position two-way throttle solenoid valve III (14) and the two-position two-way throttle solenoid valve III (15) are provided with a third position sensor (23) and a third position sensor (24) for sensing the position change of the rodless cavity and the rod cavity of the telescopic cylinder II (20);
the port C is communicated with an inlet of the side-shifting three-position four-way electromagnetic valve (2), an oil outlet of the side-shifting three-way electromagnetic valve (2) is respectively communicated with an A4 port and an A5 port on the side-shifting pressure control valve (3), an A2 port on the side-shifting pressure control valve (3) is communicated with an A6 port of the throttle valve I (9), an A7 port of the throttle valve I (9) is communicated with an A10 port of the side-shifting oil cylinder (16), an A3 port on the side-shifting pressure control valve (3) is communicated with an A8 port of the throttle valve II (10), an A9 port of the throttle valve II (10) is communicated with an A11 port of the side-shifting oil cylinder (16), and an A1 port on the side-shifting pressure control valve (3) is communicated with a D port of the main pressure reducing valve (1);
the C port is communicated with the inlet of the telescopic three-position two-way electromagnetic valve (11), the oil outlet of the telescopic three-position two-way electromagnetic valve (11) is respectively communicated with the C6 port and the C7 port on the telescopic pressure control valve (8), the C2 port, the C3 port, the C4 port and the C5 port on the telescopic pressure control valve (8) are respectively communicated with the C8 port, the C10 port, the C12 port and the C14 port on the two-position two-way electromagnetic valve I (12), the two-position two-way electromagnetic valve II (13), the two-position two-way electromagnetic valve III (14) and the two-position two-way electromagnetic valve IV (15), the two-position two-way throttle solenoid valve I (12), the two-position two-way throttle solenoid valve II (13), the two-position two-way throttle solenoid valve III (14), the C9, C11, C13 and C15 ports on the two-position two-way throttle solenoid valve IV (15) are respectively communicated with the C16, C17, C18 and C19 ports on the telescopic cylinder I (19) and the telescopic cylinder II (20), and the signals of the position sensor I (21), the position sensor II (22), the position sensor III (23) and the position sensor (24) respectively control the operation opening of the two-position two-way throttle solenoid valve I (12), the two-position two-way throttle solenoid valve II (13), the two-position two-way throttle solenoid valve III (14) and the two-position two-way throttle solenoid valve IV (15), and the C1 port of the telescopic pressure control valve (8) is communicated with the D port of the main pressure reducing valve (1).
2. The stacker spreader hydraulic system of claim 1, wherein: the hydraulic pressure control valve is characterized in that the port C is communicated with an inlet of a three-position four-way solenoid valve (4) of the rotary lock, an oil outlet of the three-position four-way solenoid valve (4) of the rotary lock is communicated with a port B6 and a port B7 of a rotary lock pressure control valve (5), a port B2 and a port B3 of the rotary lock pressure control valve (5) are communicated with a port B8 and a port B9 of a hydraulic lock II (7), a port B11 and a port B10 of the hydraulic lock II (7) are communicated with a port B12 and a port B13 of a rotary lock cylinder I (17), a port B5 and a port B4 of the rotary lock pressure control valve (5) are communicated with a port B14 and a port B15 of a hydraulic lock I (6), a port B16 and a port B17 of the hydraulic lock I (6) are communicated with a port B18 and a port B19 of a rotary lock cylinder II (18), and a port B1 of the rotary lock pressure control valve (5) is communicated with a port D of a main pressure reducing valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968745.5A CN108716490B (en) | 2018-08-23 | 2018-08-23 | Hydraulic system of lifting appliance of stacker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968745.5A CN108716490B (en) | 2018-08-23 | 2018-08-23 | Hydraulic system of lifting appliance of stacker |
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| Publication Number | Publication Date |
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| CN108716490A CN108716490A (en) | 2018-10-30 |
| CN108716490B true CN108716490B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810968745.5A Active CN108716490B (en) | 2018-08-23 | 2018-08-23 | Hydraulic system of lifting appliance of stacker |
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| US8056662B2 (en) * | 2007-03-23 | 2011-11-15 | Fairfield Manufacturing Company, Inc. | Lubrication system for right-angle drives used with utility vehicles |
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| CN108716490A (en) | 2018-10-30 |
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