CN105927601A - Promotion hydraulic system - Google Patents
Promotion hydraulic system Download PDFInfo
- Publication number
- CN105927601A CN105927601A CN201610334611.9A CN201610334611A CN105927601A CN 105927601 A CN105927601 A CN 105927601A CN 201610334611 A CN201610334611 A CN 201610334611A CN 105927601 A CN105927601 A CN 105927601A
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- hydraulic system
- mouth
- solenoid directional
- 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.)
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a promotion hydraulic system, and belongs to the field of hydraulic systems. The promotion hydraulic system comprises a balance valve, a first shuttle valve, a first electromagnetic reverse valve, a second electromagnetic reverse valve and a first throttle valve; an oil inlet of the balance valve is communicated with a first oil inlet of the first shuttle valve; an oil outlet of the balance valve is communicated with a port A of a motor; a port B of the motor is respectively communicated with a control oil port of the balance valve and a port A of the first electromagnetic reverse valve; the control oil port of the balance valve is also communicated with a port B of the first electromagnetic reverse valve; an oil inlet of the first throttle valve is communicated with the control oil port of the balance valve; an oil outlet of the first throttle valve is communicated with a port B of the first electromagnetic reverse valve; and a port C of the first electromagnetic reverse valve is communicated with a second oil inlet of the first shuttle valve. The balance valve in the promotion hydraulic system is a one-way balance valve; and the cost of the one-way balance valve is lower than the cost of a two-way balance valve, so that the cost of the promotion hydraulic system is reduced.
Description
Technical field
The present invention relates to hydraulic system field, promote hydraulic system particularly to one.
Background technology
Promote hydraulic system to be usually applied in the hydraulic system for lifting of crane hydraulic system and ocean platform.
In existing lifting hydraulic system, by entering of two actuator ports of Bidirectional balanced valve control motor
Oil mass, this Bidirectional balanced valve includes two balanced valves.
During realizing the present invention, inventor finds that prior art at least there is problems in that
Existing lifting hydraulic system is during making weight rise, and its balanced valve is the most inoperative, and
Bidirectional balanced valve price is high, improves the cost of this lifting hydraulic system.
Summary of the invention
The problem high in order to solve to promote in prior art the cost of hydraulic system, embodiments provides
A kind of lifting hydraulic system.Described technical scheme is as follows:
Embodiments providing a kind of lifting hydraulic system, described lifting hydraulic system includes: balanced valve,
First shuttle valve, the first solenoid directional control valve, the second solenoid directional control valve and first throttle valve, entering of described balanced valve
Hydraulic fluid port connects with the first oil-in of described first shuttle valve, and the oil-out of described balanced valve connects with the A mouth of motor
Logical, the B mouth of described motor respectively with the control port of described balanced valve and the A of described first solenoid directional control valve
Mouthful connection, the control port of described balanced valve also B mouth with described first solenoid directional control valve connects, and described the
The oil-in of one choke valve connects with the control port of described balanced valve, the oil-out of described first throttle valve with
The B mouth connection of described first solenoid directional control valve, the C mouth of described first solenoid directional control valve and described first shuttle valve
Second oil-in connection, the oil-out of described first shuttle valve connects with the A mouth of described second solenoid directional control valve,
The B mouth of described second solenoid directional control valve connects with the oil-in of brake, the C of described second solenoid directional control valve
Mouth connects with drain tap.
Specifically, described lifting hydraulic system also includes: second throttle and the first check valve, described second
The oil-in of choke valve and the oil-in of described first check valve are all with the C mouth of described second solenoid directional control valve even
Logical, the oil-out of described second throttle and the oil-out of described first check valve all with the entering of described brake
Hydraulic fluid port connects, and the oil-in of described second throttle also connects with described drain tap.
Further, described lifting hydraulic system also includes: the 3rd choke valve, entering of described 3rd choke valve
Hydraulic fluid port connects with the C mouth of described second solenoid directional control valve, the oil-out of described 3rd choke valve and described draining
Mouth connection.
Specifically, the first oil-in of described first shuttle valve is communicated with the first pressure measuring tie-in.
Specifically, the second oil-in of described first shuttle valve is communicated with the second pressure measuring tie-in.
Specifically, described lifting hydraulic system also includes: the second shuttle valve and the first pressure transducer, described
First oil-in of two shuttle valves connects with the A mouth of described motor, the second oil-in of described second shuttle valve and institute
Stating the B mouth connection of motor, the oil-out of described second shuttle valve connects with described first pressure transducer.
Further, the first oil-in of described second shuttle valve is communicated with the 3rd pressure measuring tie-in.
Further, the second oil-in of described second shuttle valve is communicated with the 4th pressure measuring tie-in.
Specifically, described brake is provided with the second pressure transducer.
Specifically, described first solenoid directional control valve and described second solenoid directional control valve are two-bit triplet electromagnetism and change
To valve.
The technical scheme that the embodiment of the present invention provides has the benefit that what the embodiment of the present invention provided carries
The balanced valve risen in hydraulic system is one-way balance valve, eliminates putting down at the motor B mouth promoting hydraulic system
Weighing apparatus valve, one-way balance valve price is low, reduces the cost promoting hydraulic system, additionally, when weight declines super
During speed, hydraulic oil is by the B mouth of the first solenoid directional control valve and the B mouth of inflow motor, the pressure at motor B mouth
Reduce so that at the control port of balanced valve, pressure reduces, and the opening of balanced valve diminishes, and reduces under weight
The speed of fall, makes weight decrease speed be easier to control, is difficult to stall, meanwhile, during heavy lift,
Hydraulic oil, by the oil-in oil-feed of balanced valve, is flowed out by the A mouth of the first solenoid directional control valve through motor, no
Through first throttle valve, this makes the fast efficiency of heavy lift speed high, and when weight declines, hydraulic oil is by the
The C mouth of one solenoid directional control valve flows into, through first throttle valve, under first throttle valve can make weight smoothly
Fall, improves the safety promoting hydraulic system.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the hydraulic schematic diagram of the lifting hydraulic system that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
Embodiment
Embodiments provide a kind of lifting hydraulic system, as it is shown in figure 1, this lifting hydraulic system bag
Include: balanced valve the 1, first shuttle valve the 2, first solenoid directional control valve the 3, second solenoid directional control valve 4 and first throttle
First oil-in connection of valve 5, the oil-in of balanced valve 1 and the first shuttle valve 2, the oil-out of balanced valve 1 with
The A mouth connection of motor a, the B mouth of motor a respectively with control port and first electromagnetic switch of balanced valve 1
The A mouth connection of valve 3, the control port of balanced valve 1 also B mouth with the first solenoid directional control valve 3 connects, the
The oil-in of one choke valve 5 connects with the control port of balanced valve 1, the oil-out of first throttle valve 5 and
The B mouth connection of one solenoid directional control valve 3, the C mouth of the first solenoid directional control valve 3 and the second of the first shuttle valve 2 enter
Hydraulic fluid port connects, and the oil-out of the first shuttle valve 2 and the A mouth connection of the second solenoid directional control valve 4, the second electromagnetism changes
Connect with the oil-in of brake b to the B mouth of valve 4, the C mouth of the second solenoid directional control valve 4 and drain tap L2
Connection.
Specifically, this lifting hydraulic system can also include: second throttle 6 and the first check valve 7, second
The oil-in of choke valve 6 and the oil-in of the first check valve 7 all C mouths with the second solenoid directional control valve 4 connect,
The oil-out of second throttle 6 and the oil-out of the first check valve 7 all oil-ins with brake b connect,
The oil-out of second throttle 6 also connects with drain tap L2.When brake b opens, control oil through the
One check valve 7, it is achieved the quick unlatching of brake b；When closing brake b, control oil through second section
Stream valve 6, slowly closing, it is achieved thereby that the quick closing valve of brake b closes slowly, and then, on startup, the most quickly
After opening brake b, motor a is rotated further by.
Further, this lifting hydraulic system can also include: the 3rd choke valve 8, entering of the 3rd choke valve 8
The C mouth connection of hydraulic fluid port and the second solenoid directional control valve 4, the oil-in of the 3rd choke valve 8 connects with drain tap L2.
When system fuel cut-off, the control oil of brake b realizes pressure release by the 3rd choke valve 8, makes brake b
Pressure leak process more steady.
Specifically, the first oil-in of the first shuttle valve 2 is communicated with the first pressure measuring tie-in 12, the first shuttle valve 2
Second oil-in is communicated with the second pressure measuring tie-in 13.First pressure measuring tie-in 12 is used for installing sensor, thus examines
Surveying the pressure at the A mouth of motor a, the second pressure measuring tie-in 13 is used for installing sensor, thus detects motor a
B mouth at pressure.
Specifically, this lifting hydraulic system can also include: the second shuttle valve 9 and the first pressure transducer 10,
First oil-in of the second shuttle valve 9 connects with the A mouth of motor a, the second oil-in of the second shuttle valve 9 and horse
Reaching the B mouth connection of a, oil-out and first pressure transducer 10 of the second shuttle valve 9 connect.Second shuttle valve 9
The first oil-in and the second oil-in respectively hydraulic oil is transferred to first by the oil-out of the second shuttle valve 9
On pressure transducer 10, the first oil-in of the second shuttle valve 9 can be compared by the first pressure transducer 10
With the pressure of the second oil-in both sides, and detect the force value of the higher side of pressure, thus judge motor a's
State.
Further, the first oil-in of the second shuttle valve 9 is communicated with the 3rd pressure measuring tie-in 14, the second shuttle valve 9
The second oil-in be communicated with the 4th pressure measuring tie-in 15.3rd pressure measuring tie-in 14 is used for installing sensor, thus
Pressure at the oil-in of detection balanced valve 1, i.e. promotes the pressure at hydraulic system oil-in A.4th surveys
Crimp head 15 is used for installing sensor, thus detects the pressure at the C mouth of the first solenoid directional control valve 3, i.e. carries
Rise the pressure at hydraulic system oil-in B.
Specifically, brake b can be provided with the second pressure transducer 11, the second pressure transducer 11 is straight
It is connected on brake b, can directly detect the pressure of brake b, thus judge the state of brake b.
Specifically, the first solenoid directional control valve 3 and the second solenoid directional control valve 4 can be all that two-bit triplet electromagnetism changes
To valve.
Following is a brief introduction of the operation principle of the lifting hydraulic system that the embodiment of the present invention provides:
Promoting under operating mode, hydraulic oil is divided into two-way hydraulic oil by the A mouth promoting hydraulic system after being flowed into, and one
Road hydraulic oil flows into the first oil-in of the first shuttle valve 2, the oil-out of the first shuttle valve 2 flow out, and flows into the
The A mouth of two solenoid directional control valves 4, is exited in brake b by the C mouth of the second solenoid directional control valve 4, uses
In control brake b, another road hydraulic oil flow flow to through balanced valve 1 and motor a, the first solenoid directional control valve 3
B mouth, the electromagnetism of the first solenoid directional control valve 3 obtains electric, i.e. DT1 obtains electric, and hydraulic oil is by the first electromagnetic switch
The C mouth of valve 3 flows out, the B mouth promoting hydraulic system flow out, and hydraulic oil can drive when flowing through motor a
Motor a rotates, thus realizes the lifting operation of motor a；
Under weight declines operating mode, hydraulic oil is divided into two-way hydraulic oil after being flowed into by the B mouth promoting hydraulic system,
One road hydraulic oil flows into the second oil-in of the first shuttle valve 2, the oil-out of the first shuttle valve 2 flow out, and flows into
The A mouth of the second solenoid directional control valve 4, is exited in brake b by the C mouth of the second solenoid directional control valve 4,
For control brake b, another road hydraulic oil is flowed into by the C mouth of the first solenoid directional control valve 3, by the first electromagnetism
The B mouth of reversal valve 3 flows out, and through first throttle valve 5, thus obtains the control port oil-feed of balanced valve 1, enters
And making balanced valve 1 open, hydraulic oil is through motor a and drives motor a to rotate, and makes weight decline, hydraulic oil
Flowed out by the A mouth promoting hydraulic system；
Damped condition: stop, to promoting hydraulic system fuel feeding, balanced valve 1 first weight equalizer weight, making horse
Reaching a to stop operating, motor a stall rear brake b is locked；
Maintenance or system exhaust operating mode: the electromagnetism of the second solenoid directional control valve 4 obtains electric, and brake b controls hydraulic pressure
Oil directly communicates with drain tap L2, it is ensured that brake b locks motor a completely, thus carries out overhauling or system
Exhaust work.
Balanced valve in the lifting hydraulic system that the embodiment of the present invention provides is one-way balance valve, eliminates lifting
Balanced valve at the motor B mouth of hydraulic system, one-way balance valve price is low, reduces and promotes hydraulic system
Cost, additionally, when weight declines hypervelocity, hydraulic oil is by the B mouth of the first solenoid directional control valve and flows into motor
B mouth, pressure at motor B mouth reduces so that at the control port of balanced valve, pressure reduces, balanced valve
Opening diminish, reduce weight decline speed, make weight decrease speed be easier to control, be difficult to stall,
Meanwhile, during heavy lift, hydraulic oil is by the oil-in oil-feed of balanced valve, through motor by first
The A mouth of solenoid directional control valve flows out, and without first throttle valve, this makes the fast efficiency of heavy lift speed high,
When weight declines, hydraulic oil is flowed into by the C mouth of the first solenoid directional control valve, through first throttle valve, and first
Choke valve can make weight decline smoothly, improves the safety promoting hydraulic system, additionally, at this liquid
When pressure system maintenance or maintenance, reversal valve DT2 obtains electric, and brake controls oil and directly communicates with drain tap, braking
Device is locked completely, and motor can be avoided to have the risk dropped, and meanwhile, brake can realize changing down pass soon,
Both brake was first opened, and rotated after motor；After motor comes to a complete stop, brake is locked again, this avoid braking
The abrasion of device.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (10)
1. one kind promotes hydraulic system, it is characterised in that described lifting hydraulic system includes: balanced valve (1),
First shuttle valve (2), the first solenoid directional control valve (3), the second solenoid directional control valve (4) and first throttle valve (5),
The oil-in of described balanced valve (1) connects with the first oil-in of described first shuttle valve (2), described balance
The oil-out of valve (1) connects with the A mouth of motor (a), and the B mouth of described motor (a) is flat with described respectively
The control port of weighing apparatus valve (1) connects with the A mouth of described first solenoid directional control valve (3), described balanced valve (1)
Control port also B mouth with described first solenoid directional control valve (3) connect, described first throttle valve (5)
Oil-in connect with the control port of described balanced valve (1), the oil-out of described first throttle valve (5)
Connect with the B mouth of described first solenoid directional control valve (3), the C mouth of described first solenoid directional control valve (3) with
Second oil-in connection of described first shuttle valve (2), the oil-out of described first shuttle valve (2) and described the
The A mouth connection of two solenoid directional control valves (4), the B mouth of described second solenoid directional control valve (4) and brake (b)
Oil-in connection, the C mouth of described second solenoid directional control valve (4) connects with drain tap (L2).
Lifting hydraulic system the most according to claim 1, it is characterised in that described lifting hydraulic system
Also include: second throttle (6) and the first check valve (7), the oil-in of described second throttle (6)
All C mouths with described second solenoid directional control valve (4) connect with the oil-in of described first check valve (7),
The oil-out of described second throttle (6) and the oil-out of described first check valve (7) all with described braking
Device (b) oil-in connection, the oil-in of described second throttle (6) also with described drain tap (L2)
Connection.
Lifting hydraulic system the most according to claim 2, it is characterised in that described lifting hydraulic system
Also include: the 3rd choke valve (8), the oil-in of described 3rd choke valve (8) and described second electromagnetic switch
The C mouth connection of valve (4), the oil-out of described 3rd choke valve (8) connects with described drain tap (L2).
Lifting hydraulic system the most according to claim 1, it is characterised in that described first shuttle valve (2)
The first oil-in be communicated with the first pressure measuring tie-in (12).
Lifting hydraulic system the most according to claim 1, it is characterised in that described first shuttle valve (2)
The second oil-in be communicated with the second pressure measuring tie-in (13).
Lifting hydraulic system the most according to claim 1, it is characterised in that described lifting hydraulic system
Also including: the second shuttle valve (9) and the first pressure transducer (10), the first of described second shuttle valve (9) enters
Hydraulic fluid port connects with the A mouth of described motor (a), the second oil-in of described second shuttle valve (9) and described horse
Reach the B mouth connection of (a), the oil-out of described second shuttle valve (9) and described first pressure transducer (10)
Connection.
Lifting hydraulic system the most according to claim 6, it is characterised in that described second shuttle valve (9)
The first oil-in be communicated with the 3rd pressure measuring tie-in (14).
Lifting hydraulic system the most according to claim 6, it is characterised in that described second shuttle valve (9)
The second oil-in be communicated with the 4th pressure measuring tie-in (15).
Lifting hydraulic system the most according to claim 1, it is characterised in that described brake (b)
On the second pressure transducer (11) is installed.
Lifting hydraulic system the most according to claim 1, it is characterised in that described first electromagnetism changes
It is two-bit triplet solenoid directional control valve to valve (3) and described second solenoid directional control valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334611.9A CN105927601B (en) | 2016-05-19 | 2016-05-19 | One kind lifting hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334611.9A CN105927601B (en) | 2016-05-19 | 2016-05-19 | One kind lifting hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927601A true CN105927601A (en) | 2016-09-07 |
| CN105927601B CN105927601B (en) | 2018-01-26 |
Family
ID=56840884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610334611.9A Active CN105927601B (en) | 2016-05-19 | 2016-05-19 | One kind lifting hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927601B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638533A (en) * | 2016-09-30 | 2017-05-10 | 江苏恒立液压科技有限公司 | Ocean platform seawater tower lifting system |
| CN107524661A (en) * | 2017-08-25 | 2017-12-29 | 武汉船用机械有限责任公司 | A kind of hydraulic system of rack-and-pinion lowering or hoisting gear |
| CN111608982A (en) * | 2020-04-07 | 2020-09-01 | 武汉船用机械有限责任公司 | Hydraulic system of lifting platform |
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|---|---|---|---|---|
| US3872671A (en) * | 1972-05-23 | 1975-03-25 | Verlinde Sa | Control device for a hydraulic drive motor |
| DE3012844A1 (en) * | 1979-04-05 | 1980-10-30 | Hitachi Construction Machinery | CIRCUIT FOR A HYDRAULIC LIFTING MACHINE |
| JPH10299706A (en) * | 1997-04-25 | 1998-11-10 | Komatsu Ltd | Drive system of hydraulic motor |
| CN201321358Y (en) * | 2008-11-25 | 2009-10-07 | 徐州重型机械有限公司 | Crane hoist control system and crane |
| CN202612232U (en) * | 2012-06-05 | 2012-12-19 | 郑州正弘桩工机械制造有限公司 | Hydraulic motor driving device and long spiral drilling machine main winch adopting same |
| CN103058085A (en) * | 2012-12-28 | 2013-04-24 | 三一重工股份有限公司 | Winding motor hydraulic system and rotary drilling rig |
| CN204079348U (en) * | 2014-06-30 | 2015-01-07 | 武汉船用机械有限责任公司 | A kind of electrohydraulic proportional control valve group for hydraulic wireline winch |
| CN104692254A (en) * | 2013-12-04 | 2015-06-10 | 北汽福田汽车股份有限公司 | Crane secondary ascension downslide prevention system |
-
2016
- 2016-05-19 CN CN201610334611.9A patent/CN105927601B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872671A (en) * | 1972-05-23 | 1975-03-25 | Verlinde Sa | Control device for a hydraulic drive motor |
| DE3012844A1 (en) * | 1979-04-05 | 1980-10-30 | Hitachi Construction Machinery | CIRCUIT FOR A HYDRAULIC LIFTING MACHINE |
| JPH10299706A (en) * | 1997-04-25 | 1998-11-10 | Komatsu Ltd | Drive system of hydraulic motor |
| CN201321358Y (en) * | 2008-11-25 | 2009-10-07 | 徐州重型机械有限公司 | Crane hoist control system and crane |
| CN202612232U (en) * | 2012-06-05 | 2012-12-19 | 郑州正弘桩工机械制造有限公司 | Hydraulic motor driving device and long spiral drilling machine main winch adopting same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638533A (en) * | 2016-09-30 | 2017-05-10 | 江苏恒立液压科技有限公司 | Ocean platform seawater tower lifting system |
| CN106638533B (en) * | 2016-09-30 | 2019-03-05 | 江苏恒立液压科技有限公司 | Ocean platform seawater column jacking system |
| CN107524661A (en) * | 2017-08-25 | 2017-12-29 | 武汉船用机械有限责任公司 | A kind of hydraulic system of rack-and-pinion lowering or hoisting gear |
| CN111608982A (en) * | 2020-04-07 | 2020-09-01 | 武汉船用机械有限责任公司 | Hydraulic system of lifting platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927601B (en) | 2018-01-26 |
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