CN110656558A - Four-crawler intelligent slip form paver and upright post floating electro-hydraulic control system thereof - Google Patents

Four-crawler intelligent slip form paver and upright post floating electro-hydraulic control system thereof Download PDF

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Publication number
CN110656558A
CN110656558A CN201911118506.1A CN201911118506A CN110656558A CN 110656558 A CN110656558 A CN 110656558A CN 201911118506 A CN201911118506 A CN 201911118506A CN 110656558 A CN110656558 A CN 110656558A
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China
Prior art keywords
valve
oil
upright post
floating
hydraulic
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CN201911118506.1A
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Chinese (zh)
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CN110656558B (en
Inventor
赵国普
黄烨
蔡志浦
于勤玲
蔡峰
陆晨
卞晓峰
王吉
张洪昌
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JIANGSU SIMING ENGINEERING MACHINERY Co Ltd
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JIANGSU SIMING ENGINEERING MACHINERY Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/4886—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ for forming in a continuous operation kerbs, gutters, berms, safety kerbs, median barriers or like structures in situ, e.g. by slip-forming, by extrusion
    • E01C19/4893—Apparatus designed for railless operation
    • 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
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • 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
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • 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
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31588—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and multiple output members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)

Abstract

Four-crawler intelligent slip form paver and upright post floating electro-hydraulic control system thereof relate to the technical field of pavement machinery. The hydraulic oil cylinder control system is used for controlling hydraulic oil cylinders in a left front upright post, a left rear upright post, a right front upright post and a right rear upright post of the four-crawler intelligent slip form paver and comprises a controller, a hydraulic oil source, an oil tank, a first electric control reversing valve, a second electric control reversing valve, a third electric control reversing valve, a fourth electric control reversing valve, a floating valve group, a fifth electromagnetic reversing valve, a two-position six-way reversing valve, a first double-balance valve, a second double-balance valve and a third double-balance valve. The upright posts with the built-in hydraulic oil cylinders are all in a floating state, the problems of poor paving flatness caused by frame deformation and structural direction precision reduction caused by unstable walking caused by suspension of a certain upright post crawler assembly in the background technology are effectively solved, and the structural precision of the four-crawler intelligent slip form paver during side-mounted mold mode construction is ensured.

Description

Four-crawler intelligent slip form paver and upright post floating electro-hydraulic control system thereof
Technical Field
The invention relates to the technical field of pavement machinery, in particular to a four-crawler intelligent cement concrete sliding formwork paver.
Background
The four-crawler intelligent cement concrete slip form paver (hereinafter referred to as slip form paver) is driven by four crawlers to travel, a stand column is arranged on each crawler assembly and comprises inner guide pipes and outer guide pipes, a main frame of the paver is rigidly connected between the outer guide pipes, a hydraulic oil cylinder is arranged in each inner guide pipe, one end (generally, the end of a piston rod) of each hydraulic oil cylinder is connected with the crawler assemblies through U-shaped yokes (not shown) below the inner guide pipes, the other end of each hydraulic oil cylinder is connected with the top end of each outer guide pipe and used for adjusting the height and the gradient of the main frame, and the main frame is further provided with a power system, a working mechanism and other structures.
When the slipform paver is configured with a middle mold for paving a pavement, the flatness of the pavement (comprising a longitudinal slope and a transverse slope) is automatically controlled by four longitudinal slope sensors (each longitudinal slope sensor is respectively arranged near one upright post), and the flatness is controlled by hydraulic oil cylinders in the corresponding upright posts.
When a side-mounted mould (the mould is arranged on one side of a main frame) mode is configured, the side-mounted mould is mainly used for paving concrete structures such as kerbs, ditches, protective walls and the like, the flatness of the structures is automatically controlled by adopting two longitudinal slope sensors and a transverse slope sensor, the two longitudinal slope sensors are arranged on the front position and the rear position close to one side of the mould and are respectively used for controlling hydraulic oil cylinders in the front upright post and the rear upright post of the side, and the transverse slope sensor is arranged on a cross beam of the frame close to the position of the mould and is used for controlling the hydraulic oil cylinder in the upright post of the transverse slope sensor on the other. The general combination mode of two longitudinal slope sensors and one transverse slope sensor can only control hydraulic oil cylinders in three stand columns, the hydraulic oil cylinder in the fourth stand column is not automatically controlled by a sensor, the height position of the stand column cannot be automatically adjusted during automatic paving, and a main frame of the slip form paver deforms when a track assembly connected with the stand column meets a raised roadbed or a concave roadbed to influence the flatness of a structure. Moreover, if the column caterpillar assemblies are suspended when pits are met, or other column caterpillar assemblies are suspended when the bulges are met, the column is jacked, and therefore the walking stability of the slip form paver is affected, and therefore the direction accuracy of the structure is reduced.
Disclosure of Invention
One of the purposes of the invention is to provide a column floating electro-hydraulic control system for a four-track intelligent slip-form paver, which can effectively solve the problems in the background art.
The technical scheme for realizing the purpose is as follows: the upright post floating electro-hydraulic control system for the four-crawler intelligent slip-form paver is used for controlling hydraulic oil cylinders in a left front upright post, a left rear upright post, a right front upright post and a right rear upright post of the four-crawler intelligent slip-form paver, one side of the four-crawler intelligent slip-form paver is provided with a mold mechanism, one side of the mold mechanism is connected with a front-side longitudinal slope sensor and a rear-side longitudinal slope sensor, and the rear side of the four-crawler intelligent slip-form paver is provided with a cross slope sensor;
the method is characterized in that: the electro-hydraulic control system comprises a controller, a hydraulic oil source, an oil tank, a first electric control reversing valve, a second electric control reversing valve, a third electric control reversing valve, a fourth electric control reversing valve, a floating valve group, a fifth electromagnetic reversing valve, a two-position six-way reversing valve, a first double-balance valve, a second double-balance valve and a third double-balance valve;
the pressure oil ports P of the first electric control reversing valve, the second electric control reversing valve, the third electric control reversing valve and the fourth electric control reversing valve are connected in parallel and connected with a hydraulic oil source and an oil return port T and connected in parallel and connected with an oil tank, and a working oil port A, B of the first electric control reversing valve is connected with a hydraulic oil cylinder in the left rear upright post through a first double-balance valve; a working oil port A, B of the second electric control reversing valve is connected with a hydraulic oil cylinder in the right rear upright post through a second double-balanced valve; a working oil port A, B of the third electric control reversing valve is connected with an oil inlet A, B of a two-position six-way reversing valve through a third double-balance valve, and oil outlets A1 and B1 of the two-position six-way reversing valve are connected with a hydraulic oil cylinder in the right front upright post; a working oil port A, B of the fourth electric control reversing valve is connected with a hydraulic oil cylinder in the left front upright post and oil inlets C1 and C2 of the two-position six-way reversing valve through a floating valve group;
the floating valve bank is provided with oil outlets C1, C2, C3, C4, oil inlets V1, V2, a pressure oil port P and an oil return port T, the pressure oil port P on the floating valve bank is connected with a hydraulic oil source, the T port is connected with an oil tank, the oil inlets V1 and V2 are connected with a working oil port A, B of a fourth electric control reversing valve, oil outlets C1 and C2 are connected with oil inlets C1, C2, oil outlets C3 and C4 of a two-position six-way reversing valve, and the oil inlets C1, C2, oil outlets C3 and C4 are connected with;
a first electromagnetic directional valve, a second electromagnetic directional valve, a third electromagnetic directional valve, a fourth electromagnetic directional valve, an adjustable pressure reducing valve, a one-way valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve and a single balance valve are arranged in the floating valve group, a pressure oil port P of the first electromagnetic directional valve is sequentially connected with the adjustable pressure reducing valve and the one-way valve in series and then connected with the pressure oil port P of the floating valve group, a pressure relief port L of the adjustable pressure reducing valve is connected with an oil return port T of the floating valve group after being connected with the first hydraulic control one-way valve in series, a working oil port A of the first electromagnetic directional valve is connected with an oil outlet C4 of the floating valve group, and a working oil; a pressure oil port P of the second electromagnetic directional valve is connected with a pressure oil port P of the first electromagnetic directional valve, a working oil port A of the second electromagnetic directional valve is connected with an oil outlet C3 of the floating valve group, and a working oil port B of the second electromagnetic directional valve is connected with an oil outlet C1 of the floating valve group; a pressure oil port P of the third electromagnetic directional valve is connected with a second hydraulic control one-way valve in series and then is connected with an oil inlet V2 of the floating valve group, a hydraulic control port K of the second hydraulic control one-way valve is connected with a hydraulic control port K of the first hydraulic control one-way valve in parallel and is connected with the pressure oil port P of the floating valve group, a working oil port A of the third electromagnetic directional valve is connected with an oil outlet C2 of the floating valve group, and a working oil port B of the third electromagnetic directional valve is connected with an oil outlet; a pressure oil port P of the fourth electromagnetic directional valve is connected with a single balance valve in series and then is connected with an oil inlet V1 of the floating valve group, a control port K of the single balance valve is connected with an oil inlet V2 of the floating valve group, a working oil port A of the fourth electromagnetic directional valve is connected with an oil outlet C1 of the floating valve group, and a working oil port B of the fourth electromagnetic directional valve is connected with an oil outlet C3 of the floating valve group;
the transverse slope sensor, the front side longitudinal slope sensor and the rear side longitudinal slope sensor are respectively connected with the input end of the controller, and the control ends of the first electric control reversing valve, the second electric control reversing valve, the third electric control reversing valve and the fourth electric control reversing valve are respectively connected with the output end of the controller.
Furthermore, the first electric control reversing valve, the second electric control reversing valve, the third electric control reversing valve and the fourth electric control reversing valve adopt electromagnetic proportional reversing valves or electro-hydraulic servo valves.
Further, the hydraulic oil source is supplied with oil by adopting a fixed displacement pump or a variable displacement pump.
Furthermore, the upright post floating electro-hydraulic control system further comprises a fifth electromagnetic directional valve, the two-position six-way directional valve adopts a hydraulic directional valve, a control oil port P of the hydraulic directional valve is connected with a working oil port A of the fifth electromagnetic directional valve, a pressure oil port P of the fifth electromagnetic directional valve is connected with a hydraulic oil source, an oil return port is connected with an oil tank, and the control end of the fifth electromagnetic directional valve is connected with the controller.
Further, the two-position six-way reversing valve is a manual or electric reversing valve, and when the electric reversing valve is adopted, the control end of the electric reversing valve is connected with the controller.
The invention also aims to provide a four-track intelligent slip form paver, which comprises a host and an upright post floating electro-hydraulic control system, wherein the host comprises four two pairs of track assemblies which are arranged in front and back, a left front upright post is installed on the track assembly at the left front side, a left rear upright post is installed on the track assembly at the left rear side, a right front upright post is installed on the track assembly at the right front side, a right rear upright post is installed on the track assembly at the right rear side, a rack is connected among the left front upright post, the left rear upright post, the right front upright post and the right rear upright post, a power mechanism, a mold mechanism and a feeding device for feeding materials to the mold mechanism are installed on the rack, the mold mechanism is fixedly installed at one side of the rack, a cross slope sensor is installed at the rear end of the rack, and one side where the mold mechanism is installed is connected with;
the left front upright post, the left rear upright post, the right front upright post and the right rear upright post have the same structure and comprise inner guide pipes, outer guide pipes are sleeved outside the inner guide pipes, the rack is connected with the outer guide pipes, and hydraulic oil cylinders for driving the outer guide pipes to lift are arranged in the inner guide pipes;
the upright post floating electro-hydraulic control system for the four-track intelligent sliding-mode paver is the upright post floating electro-hydraulic control system for the four-track intelligent sliding-mode paver of any one of claims 1 to 5.
The invention has the beneficial effects that:
the four-crawler intelligent slip form paver disclosed by the invention is provided with the upright post floating electro-hydraulic control system, so that the upright posts with the built-in hydraulic oil cylinders are in a floating state, the problems of poor paving flatness caused by frame deformation and structural direction precision reduction caused by unstable walking caused by suspension of a certain upright post crawler assembly in the background art are effectively solved, and the structural precision of the four-crawler intelligent slip form paver during side-mounted mold mode construction is ensured.
The invention can change the pressure of the oil source in the upper cavity and the lower cavity (a rodless cavity and a rod cavity) of the hydraulic oil cylinder through the adjustable pressure reducing valve.
The invention is provided with a first double-balance valve, a second double-balance valve and a third double-balance valve, and can lock four upright posts to not automatically descend in a non-working state; the hydraulic oil cylinders in the left front upright post, the left rear upright post, the right front upright post and the right rear upright post can play a role in buffering in an electric control lifting state.
Drawings
FIG. 1 is a schematic diagram of an electro-hydraulic control system;
FIG. 2 is a schematic structural diagram of a four-track intelligent slipform paver with a mold mechanism arranged on the left side;
fig. 3 is a structural schematic diagram of a four-track intelligent slipform paver with a mold mechanism arranged on the right side;
fig. 4 is a schematic view of a pillar structure.
Detailed Description
As shown in fig. 1-4, the invention discloses a four-track intelligent slip form paver, the structure of which is the same as the prior art, comprising a host 1, the host 1 comprises four two pairs of track assemblies 3 arranged in front and back, a right rear upright post 4 is arranged on the track assembly 3 at the right rear side, a right front upright post 5 is arranged on the track assembly 3 at the right front side, a left front upright post 6 is arranged on the track assembly 3 at the left front side, a left rear upright post 7, a right rear upright post 4 and a right front upright post 5 are arranged on the track assembly 3 at the left rear side, be connected with frame 8 between left front column 6, the left back stand 7, install power unit 9, die mechanism 2 and to the feedway 10 of die mechanism 2 feed on the frame 8, die mechanism 2 fixed mounting is in one side of frame 8, and cross slope sensor 11 is installed to the frame 8 rear end, and one side of installing die mechanism 2 is connected with front side longitudinal gradient sensor 12 and rear side longitudinal gradient sensor 13.
The right rear upright post 4, the right front upright post 5, the left front upright post 6 and the left rear upright post 7 have the same structure and comprise an inner guide pipe 38 connected to the crawler belt assembly 3, an outer guide pipe 39 is sleeved outside the inner guide pipe 38, and the frame 8 is connected with the outer guide pipe 39; a right rear upright hydraulic cylinder 41 for driving the outer guide pipe 39 to lift is arranged in the inner guide pipe 38 of the right rear upright 4, a right front upright hydraulic cylinder 42 for driving the outer guide pipe 39 to lift is arranged in the inner guide pipe 38 of the right front upright 5, a left front upright hydraulic cylinder 43 for driving the outer guide pipe 39 to lift is arranged in the inner guide pipe 38 of the left front upright 6, and a left rear upright hydraulic cylinder 40 for driving the outer guide pipe 39 to lift is arranged in the inner guide pipe 38 of the left rear upright 7.
The invention mainly aims to provide a column floating electro-hydraulic control system for a four-track intelligent sliding-mode paver, which comprises a controller 14, a hydraulic oil source 15, an oil tank 16, an electric control reversing valve group 27, a floating valve group 21, a fifth electromagnetic reversing valve 22, a hydraulic reversing valve 23, a first double-balance valve 24, a second double-balance valve 25 and a third double-balance valve 26, wherein the controller 14 can adopt a single chip microcomputer or a general controller, such as an MC series controller of a DANFOS.
The electrically controlled direction valve set 27 includes a first electrically controlled direction valve 17, a second electrically controlled direction valve 18, a third electrically controlled direction valve 19, a fourth electrically controlled direction valve 20 and a valve block 28, the valve block 28 is provided with oil outlets a1 and B1 respectively correspondingly connected with a working oil port A, B of the first electrically controlled direction valve 17, oil outlets a2 and B2 respectively correspondingly connected with a working oil port A, B of the second electrically controlled direction valve 18, oil outlets A3 and B3 respectively correspondingly connected with a working oil port A, B of the third electrically controlled direction valve 19, oil outlets a4 and B4 respectively correspondingly connected with a working oil port A, B of the fourth electrically controlled direction valve 20, and a pressure oil port P1 and an oil return port T1 respectively correspondingly connected with a pressure oil port P and an oil return port T of the first electrically controlled direction valve 17, the second electrically controlled direction valve 18, the third electrically controlled direction valve 19 and the fourth electrically controlled direction valve 20, and the pressure oil port P1 on the valve block 28 is connected with a hydraulic oil source 15, a hydraulic oil source 1, The oil return port T1 is connected to the oil tank 16.
The floating valve group 21 is provided with oil outlets C1, C2, C3, C4, oil inlets V1, V2, a pressure oil port P and an oil return port T, the pressure oil port P on the floating valve group 21 is connected with a hydraulic oil source 15, the oil return port T is connected with an oil tank 16, a first electromagnetic directional valve 29, a second electromagnetic directional valve 30, a third electromagnetic directional valve 31, a fourth electromagnetic directional valve 32, an adjustable pressure reducing valve 33, a one-way valve 34, a first hydraulic control one-way valve 35, a second hydraulic control one-way valve 36 and a single balance valve 37 are arranged in the floating valve group 21, the pressure oil port P of the first electromagnetic directional valve 29 is connected with an oil outlet C1 of the adjustable pressure reducing valve 33, an oil inlet V1 of the adjustable pressure reducing valve 33 is connected with an oil outlet B of the one-way valve 34, an oil inlet A of the one-way valve 34 is connected with the pressure P of the floating valve group 21, a pressure oil return port L of the adjustable pressure reducing valve 33 is connected with an oil outlet B, a working oil port A of the first electromagnetic directional valve 29 is connected with an oil outlet C4 of the floating valve group 21, and a working oil port B is connected with an oil outlet C2 of the floating valve group 21; a pressure oil port P of the second electromagnetic directional valve 30 is connected with a pressure oil port P of the first electromagnetic directional valve 29, a working oil port A of the second electromagnetic directional valve 30 is connected with an oil outlet C3 of the floating valve group 21, a working oil port B is connected with an oil outlet C1 of the floating valve group 21, a pressure oil port P of the third electromagnetic directional valve 31 is connected with an oil outlet B of the second hydraulic control one-way valve 36, an oil inlet A of the second hydraulic control one-way valve 36 is connected with an oil inlet V2 of the floating valve group 21, and a hydraulic control port K of the second hydraulic control one-way valve 36 is connected with a hydraulic control port K of the first hydraulic control one-way valve 35 in parallel and is connected with the pressure; a working oil port A of the third electromagnetic directional valve 31 is connected with an oil outlet C2 of the floating valve group 21, a working oil port B is connected with an oil outlet C4 of the floating valve group 21, a pressure oil port P of the fourth electromagnetic directional valve 32 is connected with an oil outlet C1 of the single balance valve 37, an oil inlet V1 of the single balance valve 37 is connected with an oil inlet V1 of the floating valve group 21, and a control port K of the single balance valve 37 is connected with an oil inlet V2 of the floating valve group 21; the working oil port a of the fourth electromagnetic directional valve 32 is connected to the oil outlet C1 of the floating valve group 21, and the working oil port B is connected to the oil outlet C3 of the floating valve group 21.
An oil outlet A1 of the valve block 28 is connected with an oil inlet V1 of a first double-balance valve 24, an oil outlet B1 is connected with an oil inlet V2 of the first double-balance valve 24, an oil outlet C1 of the first double-balance valve 24 is connected with a rodless cavity of the left rear upright hydraulic cylinder 40, and an oil outlet C2 is connected with a rod cavity of the left rear upright hydraulic cylinder 40; an oil outlet A2 of the valve block 28 is connected with an oil inlet V1 of a second double balance valve 25, an oil outlet B2 is connected with an oil inlet V2 of the second double balance valve 25, an oil outlet C1 of the second double balance valve 25 is connected with a rodless cavity of the right rear upright post hydraulic cylinder 41, and an oil outlet C2 is connected with a rod cavity of the right rear upright post hydraulic cylinder 41; an oil outlet A3 of the valve block 28 is connected with an oil inlet V2 of a third double-balance valve 26, an oil outlet B3 is connected with an oil inlet V1 of the third double-balance valve 26, an oil outlet C1 of the third double-balance valve 26 is connected with an oil inlet B of a hydraulic reversing valve 23, an oil outlet C2 is connected with an oil inlet A of the hydraulic reversing valve 23, an oil outlet B1 of the hydraulic reversing valve 23 is connected with a rodless cavity of a right front upright post hydraulic oil cylinder 42, an oil outlet A1 is connected with a rod cavity of the right front upright post hydraulic oil cylinder 42, a control oil port P of the hydraulic reversing valve 23 is connected with a working oil port A of a fifth electromagnetic reversing valve 22, and a pressure oil port P of the fifth electromagnetic reversing valve 22 is connected with a hydraulic oil source; an oil outlet A4 of the valve block 28 is connected with an oil inlet V2 of the floating valve group 21, an oil outlet B4 is connected with an oil inlet V1 of the floating valve group 21, an oil outlet C1 of the floating valve group 21 is connected with an oil inlet C1 of the hydraulic reversing valve, an oil outlet C2 is connected with an oil inlet C2 of the hydraulic reversing valve 23, an oil outlet C3 is connected with a rodless cavity of the left front upright hydraulic cylinder 43, and an oil outlet C4 is connected with a rod cavity of the left front upright hydraulic cylinder 43.
The cross slope sensor 11, the front side longitudinal slope sensor 12 and the rear side longitudinal slope sensor 13 are respectively connected with the input end of the controller 14, and the control ends of the first electric control reversing valve 17, the second electric control reversing valve 18, the third electric control reversing valve 19, the fourth electric control reversing valve 20 and the fifth electromagnetic reversing valve 22 are respectively connected with the output end of the controller.
As a further description of the present embodiment, the hydraulic oil source 15 in the present embodiment may be supplied with oil by a fixed displacement pump or a variable displacement pump; the first electrically controlled reversing valve 17, the second electrically controlled reversing valve 18, the third electrically controlled reversing valve 19 and the fourth electrically controlled reversing valve 20 can adopt electromagnetic proportional reversing valves or electro-hydraulic servo valves.
As a further explanation of the present embodiment, the mold mechanism 2 may be disposed on the left side or the right side of the paver during construction, and when the mold mechanism 2 is disposed on the left side, the front longitudinal-slope sensor 12 and the rear longitudinal-slope sensor 13 are also disposed on the left side, and when the mold mechanism 2 is disposed on the right side, the front longitudinal-slope sensor 12 and the rear longitudinal-slope sensor 13 are also disposed on the right side.
The working principle of the invention is as follows:
when the die mechanism 2 is configured on the left side of the paver for construction, and when the controller 14 receives a road surface unevenness change signal sent by the rear side longitudinal slope sensor 13, the first electronic control reversing valve 17 is controlled to act, so that the left rear upright post hydraulic oil cylinder 40 automatically controls the lifting action of the left rear upright post 7.
When the controller 14 receives a road surface unevenness change signal sent by the front side longitudinal slope sensor 13, the controller 14 controls the third electromagnetic directional valve 31, the fourth electromagnetic directional valve 32 and the fourth electronic directional valve 20 to act, and hydraulic oil controls the left front upright hydraulic cylinder 43 to act through the fourth electronic directional valve 20, the single balance valve 37 of the floating valve group 21, the second electronic control one-way valve 36, the third electromagnetic directional valve 31 and the fourth electronic directional valve 32, so that the automatic lifting action of the left front upright 6 is realized.
When the controller 14 receives a road surface unevenness change signal sent by the cross slope sensor 11, the second electrically controlled reversing valve 18 is controlled to act, so that the right rear upright post hydraulic oil cylinder 41 automatically controls the lifting action of the right rear upright post 4.
When the right rear column 4 goes up and down, the right front column 5 follows the height of the right rear column 4 through the floating valve group 21 to realize up-down floating, and the concrete principle is as follows: when the controller 14 receives a road surface unevenness change signal sent by the cross slope sensor 11, the controller 14 simultaneously controls the coils of the first electromagnetic directional valve 29, the second electromagnetic directional valve 30, the third electromagnetic directional valve 31, the fourth electromagnetic directional valve 32 and the fifth electromagnetic directional valve 22 of the floating valve group 21 to be electrified, pressure oil of the hydraulic oil source 15 acts on a control oil port P of the hydraulic directional valve 20 through the fifth electromagnetic directional valve 22, so that oil inlets C2 and C1 of the hydraulic directional valve 23 are respectively communicated with oil outlets a1 and B1, the pressure oil of the hydraulic oil source 15 passes through the adjustable pressure reducing valve 33 and then respectively flows through the first electromagnetic directional valve 29 and the second electromagnetic directional valve 30 to reach oil outlets C2 and C1 of the floating valve group 21, and then the oil inlets C2, C1, oil outlets a1 and B1 of the hydraulic directional valve 23 act on a rod cavity and a rodless cavity of the right front hydraulic cylinder 42, the right front pillar hydraulic cylinder 42 is brought into a floating state by adjusting the pressure of the adjustable relief valve 33.
When the die mechanism 2 is configured on the right side of the paver for construction, and when the controller 14 receives a road surface unevenness change signal sent by the rear side longitudinal slope sensor 13, the second electrically controlled reversing valve 18 is controlled to act, so that the right rear upright post hydraulic oil cylinder 41 automatically controls the lifting action of the right rear upright post 4.
When the controller 14 receives a road surface unevenness change signal sent by the front side longitudinal slope sensor 13, the controller 14 controls the right front upright hydraulic cylinder 42 to act through the third electrically controlled reversing valve 19 so as to realize the lifting action of the right front upright 5.
When the controller 14 receives a road surface unevenness change signal sent by the cross slope sensor 11, the first electronic control reversing valve 17 is controlled to act, so that the left rear upright post hydraulic oil cylinder 40 automatically controls the lifting action of the left rear upright post 7.
The left front upright post 6 floats up and down along with the height of the left rear upright post 7 through the floating valve group 7. The floating principle is as follows: when the controller 14 receives a road surface unevenness change signal sent by the cross slope sensor 11, the controller 14 simultaneously controls the coils of the first electromagnetic directional valve 29, the second electromagnetic directional valve 30, the third electromagnetic directional valve 31, the fourth electromagnetic directional valve 32 and the fifth electromagnetic directional valve 22 of the floating valve group 21 to lose power, pressure oil of the hydraulic oil source 15 flows through the adjustable pressure reducing valve 33, then flows through the first electromagnetic directional valve 29 and the second electromagnetic directional valve 30 in two ways, respectively reaches oil inlets C4 and C3 of the floating valve group 7, respectively acts on a rod cavity and a rodless cavity of the left front upright post oil cylinder 43, and the left front upright post hydraulic cylinder 43 is in a floating state by adjusting the pressure of the adjustable pressure reducing valve 33.
Second embodiment
The second embodiment is substantially the same as the first embodiment, except that the hydraulic directional valve 23 is replaced by a manual or electric directional valve, the fifth electromagnetic directional valve 22 in the first embodiment is omitted, and when an electric directional valve is used, the control end of the electric directional valve 22 is connected to the output end of the controller 14.

Claims (6)

1. The four-crawler intelligent slip-form paver and the upright post floating electro-hydraulic control system thereof are used for controlling hydraulic oil cylinders in a left front upright post, a left rear upright post, a right front upright post and a right rear upright post of the four-crawler intelligent slip-form paver, one side of the four-crawler intelligent slip-form paver is provided with a die mechanism, one side of the die mechanism is connected with a front-side longitudinal slope sensor and a rear-side longitudinal slope sensor, and the rear side of the four-crawler intelligent slip-form paver is provided with a cross slope sensor;
the method is characterized in that: the electro-hydraulic control system comprises a controller, a hydraulic oil source, an oil tank, a first electric control reversing valve, a second electric control reversing valve, a third electric control reversing valve, a fourth electric control reversing valve, a floating valve group, a fifth electromagnetic reversing valve, a two-position six-way reversing valve, a first double-balance valve, a second double-balance valve and a third double-balance valve;
the pressure oil ports P of the first electric control reversing valve, the second electric control reversing valve, the third electric control reversing valve and the fourth electric control reversing valve are connected in parallel and connected with a hydraulic oil source and an oil return port T and connected in parallel and connected with an oil tank, and a working oil port A, B of the first electric control reversing valve is connected with a hydraulic oil cylinder in the left rear upright post through a first double-balance valve; a working oil port A, B of the second electric control reversing valve is connected with a hydraulic oil cylinder in the right rear upright post through a second double-balanced valve; a working oil port A, B of the third electric control reversing valve is connected with an oil inlet A, B of a two-position six-way reversing valve through a third double-balance valve, and oil outlets A1 and B1 of the two-position six-way reversing valve are connected with a hydraulic oil cylinder in the right front upright post; a working oil port A, B of the fourth electric control reversing valve is connected with a hydraulic oil cylinder in the left front upright post and oil inlets C1 and C2 of the two-position six-way reversing valve through a floating valve group;
the floating valve bank is provided with oil outlets C1, C2, C3, C4, oil inlets V1, V2, a pressure oil port P and an oil return port T, the pressure oil port P on the floating valve bank is connected with a hydraulic oil source, the T port is connected with an oil tank, the oil inlets V1 and V2 are connected with a working oil port A, B of a fourth electric control reversing valve, oil outlets C1 and C2 are connected with oil inlets C1, C2, oil outlets C3 and C4 of a two-position six-way reversing valve, and the oil inlets C1, C2, oil outlets C3 and C4 are connected with;
a first electromagnetic directional valve, a second electromagnetic directional valve, a third electromagnetic directional valve, a fourth electromagnetic directional valve, an adjustable pressure reducing valve, a one-way valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve and a single balance valve are arranged in the floating valve group, a pressure oil port P of the first electromagnetic directional valve is sequentially connected with the adjustable pressure reducing valve and the one-way valve in series and then connected with the pressure oil port P of the floating valve group, a pressure relief port L of the adjustable pressure reducing valve is connected with an oil return port T of the floating valve group after being connected with the first hydraulic control one-way valve in series, a working oil port A of the first electromagnetic directional valve is connected with an oil outlet C4 of the floating valve group, and a working oil; a pressure oil port P of the second electromagnetic directional valve is connected with a pressure oil port P of the first electromagnetic directional valve, a working oil port A of the second electromagnetic directional valve is connected with an oil outlet C3 of the floating valve group, and a working oil port B of the second electromagnetic directional valve is connected with an oil outlet C1 of the floating valve group; a pressure oil port P of the third electromagnetic directional valve is connected with a second hydraulic control one-way valve in series and then is connected with an oil inlet V2 of the floating valve group, a hydraulic control port K of the second hydraulic control one-way valve is connected with a hydraulic control port K of the first hydraulic control one-way valve in parallel and is connected with the pressure oil port P of the floating valve group, a working oil port A of the third electromagnetic directional valve is connected with an oil outlet C2 of the floating valve group, and a working oil port B of the third electromagnetic directional valve is connected with an oil outlet; a pressure oil port P of the fourth electromagnetic directional valve is connected with a single balance valve in series and then is connected with an oil inlet V1 of the floating valve group, a control port K of the single balance valve is connected with an oil inlet V2 of the floating valve group, a working oil port A of the fourth electromagnetic directional valve is connected with an oil outlet C1 of the floating valve group, and a working oil port B of the fourth electromagnetic directional valve is connected with an oil outlet C3 of the floating valve group;
the transverse slope sensor, the front side longitudinal slope sensor and the rear side longitudinal slope sensor are respectively connected with the input end of the controller, and the control ends of the first electric control reversing valve, the second electric control reversing valve, the third electric control reversing valve and the fourth electric control reversing valve are respectively connected with the output end of the controller.
2. The upright post floating electro-hydraulic control system for the four-track intelligent slip form paver of claim 1, which is characterized in that: the first electric control reversing valve, the second electric control reversing valve, the third electric control reversing valve and the fourth electric control reversing valve adopt electromagnetic proportional reversing valves or electro-hydraulic servo valves.
3. The upright post floating electro-hydraulic control system for the four-track intelligent slip form paver of claim 1, which is characterized in that: the hydraulic oil source adopts a fixed displacement pump or a variable displacement pump to supply oil.
4. The upright post floating electro-hydraulic control system for the four-track intelligent slip form paver of claim 1, which is characterized in that: the upright post floating electro-hydraulic control system further comprises a fifth electromagnetic directional valve, the two-position six-way directional valve adopts a hydraulic directional valve, a control oil port P of the hydraulic directional valve is connected with a working oil port A of the fifth electromagnetic directional valve, a pressure oil port P of the fifth electromagnetic directional valve is connected with a hydraulic oil source, an oil return port is connected with an oil tank, and the control end of the fifth electromagnetic directional valve is connected with a controller.
5. The upright post floating electro-hydraulic control system for the four-track intelligent slip form paver of claim 1, which is characterized in that: the two-position six-way reversing valve is a manual or electric reversing valve, and when the electric reversing valve is adopted, the control end of the electric reversing valve is connected with the controller.
6. A four-track intelligent slip form paver comprises a host and an upright floating electro-hydraulic control system, wherein the host comprises four two pairs of track assemblies which are arranged in front and back, a left front upright is mounted on the track assembly at the left front side, a left rear upright is mounted on the track assembly at the left rear side, a right front upright is mounted on the track assembly at the right front side, a right rear upright is mounted on the track assembly at the right rear side, a rack is connected among the left front upright, the left rear upright, the right front upright and the right rear upright, a power mechanism, a mold mechanism and a feeding device for feeding materials to the mold mechanism are mounted on the rack, the mold mechanism is fixedly mounted at one side of the rack, a transverse slope sensor is mounted at the rear end of the rack, and a front longitudinal slope sensor and a rear longitudinal slope sensor are connected to one side on which the mold mechanism;
the left front upright post, the left rear upright post, the right front upright post and the right rear upright post have the same structure and comprise inner guide pipes, outer guide pipes are sleeved outside the inner guide pipes, the rack is connected with the outer guide pipes, and hydraulic oil cylinders for driving the outer guide pipes to lift are arranged in the inner guide pipes;
the method is characterized in that: the upright post floating electro-hydraulic control system for the four-track intelligent sliding-mode paver is the upright post floating electro-hydraulic control system for the four-track intelligent sliding-mode paver of any one of claims 1 to 5.
CN201911118506.1A 2019-09-10 2019-11-15 Four-crawler intelligent slipform paver and upright post floating electrohydraulic control system thereof Active CN110656558B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090169300A1 (en) * 2007-12-27 2009-07-02 Allen J Dewayne Hydraulic riding trowel with automatic load sensing system
CN202789784U (en) * 2012-08-09 2013-03-13 郑州新大方重工科技有限公司 Hydraulic system with fine adjustment function
CN104047914A (en) * 2014-07-03 2014-09-17 戴纳派克（中国）压实摊铺设备有限公司 Floating screed control system of paver and paver
CN204942123U (en) * 2015-06-25 2016-01-06 徐工集团工程机械股份有限公司 The anti-suction sky of a kind of paver promotes hydraulic system and paver
CN206144887U (en) * 2016-10-21 2017-05-03 江苏真绩机械制造有限公司 Harvester chassis lift hydraulic control system
CN108442213A (en) * 2018-05-04 2018-08-24 徐工集团工程机械股份有限公司 The multifunction control system of paver screed
CN208587339U (en) * 2018-07-26 2019-03-08 青岛理工大学 A kind of hydraulic system floated for agricultural machinery and implement
CN211689783U (en) * 2019-09-10 2020-10-16 江苏四明工程机械有限公司 Four-crawler intelligent slip form paver and upright post floating electro-hydraulic control system thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090169300A1 (en) * 2007-12-27 2009-07-02 Allen J Dewayne Hydraulic riding trowel with automatic load sensing system
CN202789784U (en) * 2012-08-09 2013-03-13 郑州新大方重工科技有限公司 Hydraulic system with fine adjustment function
CN104047914A (en) * 2014-07-03 2014-09-17 戴纳派克（中国）压实摊铺设备有限公司 Floating screed control system of paver and paver
CN204942123U (en) * 2015-06-25 2016-01-06 徐工集团工程机械股份有限公司 The anti-suction sky of a kind of paver promotes hydraulic system and paver
CN206144887U (en) * 2016-10-21 2017-05-03 江苏真绩机械制造有限公司 Harvester chassis lift hydraulic control system
CN108442213A (en) * 2018-05-04 2018-08-24 徐工集团工程机械股份有限公司 The multifunction control system of paver screed
CN208587339U (en) * 2018-07-26 2019-03-08 青岛理工大学 A kind of hydraulic system floated for agricultural machinery and implement
CN211689783U (en) * 2019-09-10 2020-10-16 江苏四明工程机械有限公司 Four-crawler intelligent slip form paver and upright post floating electro-hydraulic control system thereof

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