CN108799220A - Hydraulic support system, implement and hydraulic pressure support method - Google Patents
Hydraulic support system, implement and hydraulic pressure support method Download PDFInfo
- Publication number
- CN108799220A CN108799220A CN201710293624.0A CN201710293624A CN108799220A CN 108799220 A CN108799220 A CN 108799220A CN 201710293624 A CN201710293624 A CN 201710293624A CN 108799220 A CN108799220 A CN 108799220A
- Authority
- CN
- China
- Prior art keywords
- support
- rod chamber
- rodless cavity
- implement
- communicating valve
- 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.)
- Pending
Links
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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
-
- 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
Abstract
The invention discloses a kind of hydraulic support systems, including at least two for the support cylinder (1) by implement support from the ground, support cylinder (1) is connect by reversal valve with pressure oil-source, fuel tank, further include rodless cavity communicating valve (2), rod chamber communicating valve (3), passes through rodless cavity communicating valve (2), rod chamber communicating valve (3) connection between the rodless cavity of at least two support cylinders (1), between rod chamber respectively or disconnect.The present invention is connected to the rodless cavity of each support cylinder by rodless cavity communicating valve, the rod chamber of each support cylinder is connected to by rod chamber communicating valve, connection when can simultaneously oil inlet, realize that oil inlet distributes automatically according to each supporting leg stressing conditions, the dead-weight balanced supporting leg stressing conditions of vehicle are utilized simultaneously, to Fast-Balance supporting leg stress, quickly support is completed.The invention also discloses a kind of implement with above-mentioned hydraulic support system and implement hydraulic pressure support methods.
Description
Technical field
The present invention relates to hydraulic support systems, and in particular to a kind of hydraulic support system of implement.
Background technology
Existing implement with supporting leg such as fire fighting truck, concrete mixer, crane etc., before operation, needs
Vehicle is supported with supporting leg, to ensure operation stability.After supporting, also to ensure as possible vehicle levelness and
The stress equalization degree of each supporting leg.General support leveling mode is to monitor vehicle angle and respectively in real time using sensor at present
The stressing conditions of supporting leg, while with the oil inlet quantity of each support cylinder of proportional valve control, this support leveling mode needs to adjust repeatedly
It is whole, it is entire to support the leveling time longer.
Implement such as fire fighting truck is because of the particularity of its operation, and the time is most important Consideration, and therefore, it is necessary to liquid
Pressure support leveling system makes improvements, and leveling efficiency is supported to improve.
Invention content
In view of this, the present invention propose one kind can Fast-Balance supporting leg stress, realize quickly support leveling hydraulic pressure support
System, implement and hydraulic pressure support method.
On the one hand, the present invention proposes a kind of hydraulic support system, including at least two liftoff for supportting implement
The support cylinder in face, support cylinder are connect by reversal valve with pressure oil-source, fuel tank, further include rodless cavity communicating valve, rod chamber
Communicating valve between the rodless cavity of at least two support cylinders, passes through rodless cavity communicating valve, rod chamber respectively between rod chamber
Communicating valve is connected to or disconnects.
As a further improvement, including four support cylinders, two of which be front leg strut support cylinder, two be after prop up
Leg support cylinder, the rodless cavity communicating valve, rod chamber communicating valve are two, the rodless cavities of two front leg strut support cylinders it
Between, pass through a rodless cavity communicating valve, the connection of rod chamber communicating valve respectively between rod chamber or disconnect, two rear support leg branch
Connected respectively by another rodless cavity communicating valve, another rod chamber communicating valve between the rodless cavity of support oil cylinder, between rod chamber
On-off is opened.
As a further improvement, between the rodless cavity hydraulic fluid port of the support cylinder, rod chamber hydraulic fluid port and reversal valve
Hydraulic lock is provided on oil circuit, the hydraulic lock is provided with outside control mouth, and outside control mouth is connected to control pressure by two position two-way valve
Oil sources.
Hydraulic support system proposed by the present invention, including at least two for by implement support from the ground support oil
Cylinder, support cylinder are connect by reversal valve with pressure oil-source, fuel tank, further include rodless cavity communicating valve, rod chamber communicating valve, at least
It is connected to respectively by rodless cavity communicating valve, rod chamber communicating valve between the rodless cavity of two support cylinders, between rod chamber
Or it disconnects.It is connected to the rodless cavity of each support cylinder by rodless cavity communicating valve, each support cylinder is connected to by rod chamber communicating valve
Rod chamber, connection when can simultaneously oil inlet, realize oil inlet distributed automatically according to each supporting leg stressing conditions, while using vehicle from
Weight balance supporting leg stressing conditions need not adjust the flexible of each supporting leg, it can be achieved that quickly repeatedly to Fast-Balance supporting leg stress
Support leveling.
On the other hand, the present invention provides a kind of implement, including chassis, and there are two front leg strut and two for setting on chassis
Rear support leg, which is characterized in that further include hydraulic support system as described above, each front leg strut, the end of each rear support leg are equal
There are one support cylinders for setting.
As a further improvement, further include controller and monitoring device, the monitoring device is for monitoring each supporting leg
Expand in place situation and monitoring signals be sent to controller, the controller control rodless cavity communicating valve, rod chamber connection
The break-make of valve.
As a further improvement, the supporting leg is oscillating support leg, and the monitoring device is monitoring supporting leg swing angle
Angle sensor, and/or, the supporting leg is telescopic outrigger, and the monitoring device is to monitor the displacement sensing of leg stretching length
Device.
As a further improvement, the implement is fire fighting truck or forcible entry vehicle or concrete mixer or automobile crane
Machine.
Due to having above-mentioned hydraulic support system on implement, should have identical with hydraulic support system beneficial
Effect is no longer described in detail.
In another aspect, the present invention also provides a kind of implement hydraulic pressure support method, implement includes chassis, on chassis
Setting there are two front leg strut and two rear support legs, each front leg strut, each rear support leg end be respectively provided with that there are one for that will make
The support cylinder of industry equipment support from the ground, the hydraulic pressure support method include the following steps：
After S1, four support cylinders all land, support cylinder extends the predetermined time simultaneously, ensure chassis tire all from
Ground；
The collapsing length of S2, each support cylinder of control, level is adjusted to by implement vehicle；
S3, make that the rodless cavity of at least two support cylinders is connected, rod chamber is connected, and keep whole support cylinders 1 same
The Shi Shenchang predetermined times.
As a further improvement, in step s3, the support cylinder rodless cavity of two front leg struts is made to be connected, rod chamber
It is connected, makes that the support cylinder rodless cavity of two rear support legs is connected, rod chamber is connected.
As a further improvement, before step S3, monitor each supporting leg expands in place situation, when the exhibition of each supporting leg
Open in place after, execute step S3.
Then hydraulic pressure support method proposed by the present invention is connected to supporting leg again after implement vehicle angle is adjusted to level
Oil pocket simultaneously jacks oil inlet simultaneously, realizes that oil inlet distributes automatically according to each supporting leg stressing conditions, while utilizing the dead-weight balanced branch of vehicle
Leg stressing conditions complete quickly support to Fast-Balance supporting leg stress.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of hydraulic support system proposed by the present invention.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the hydraulic support system that the embodiment of the present invention proposes, including at least two for supportting implement
Support cylinder 1 from the ground, support cylinder 1 are connect by reversal valve with pressure oil-source, fuel tank, further include rodless cavity communicating valve 2,
Rod chamber communicating valve 3 is connected to by rodless cavity respectively between the rodless cavity of at least two support cylinders 1, between rod chamber
Valve 2, the connection of rod chamber communicating valve 3 disconnect.The present embodiment is connected to the rodless cavity of each support cylinder by rodless cavity communicating valve, leads to
Cross the rod chamber that rod chamber communicating valve is connected to each support cylinder, connection when can simultaneously oil inlet, realize oil inlet according to each supporting leg by
Power situation is distributed automatically, while utilizing the dead-weight balanced supporting leg stressing conditions of vehicle, to Fast-Balance supporting leg stress, is completed quick
Support.
As further preferred embodiment, hydraulic support system includes four support cylinders 1, and two of which is preceding branch
Leg support cylinder, two be rear support leg support cylinder, the rodless cavity communicating valve 2, rod chamber communicating valve 3 are two, two
Between the rodless cavity of front leg strut support cylinder, pass through 2, the rod chamber connections of a rodless cavity communicating valve between rod chamber respectively
Valve 3 is connected to or disconnects, and is connected respectively by another rodless cavity between the rodless cavity of two rear support leg support cylinders, between rod chamber
Port valve 2, the connection of another rod chamber communicating valve 3 disconnect.In this way, front leg strut support cylinder and rear support leg support cylinder connect respectively
Logical, can reduce the difference of front leg strut and rear support leg actual loading situation influences caused by vehicle levelness.
As further preferred embodiment, rodless cavity hydraulic fluid port, rod chamber hydraulic fluid port and the commutation of the support cylinder 1
Hydraulic lock 4 is provided on oil circuit between valve, the hydraulic lock 4 is provided with outside control mouth, and outside control mouth is connected by two position two-way valve 5
To control pressure oil sources.In this way, hydraulic lock can play the role of oil cylinder locking in oil pipe booster, need to realize oil pocket connection
When, hydraulic lock is opened using two position two-way valve 5, it is easy to operate.
On the other hand, the embodiment of the present invention provides implement, including chassis, and there are two front leg strut and two for setting on chassis
A rear support leg, further includes described as described above hydraulic support system, each front leg strut, each rear support leg end be both provided with
One support cylinder 1.Since implement has above-mentioned hydraulic support system, should have identical with hydraulic support system
Advantageous effect is no longer described in detail.
As further preferred embodiment, implement further includes controller and monitoring device, the monitoring device
For monitoring expanding in place situation and monitoring signals being sent to controller for each supporting leg, the controller control rodless cavity connects
The break-make of port valve 2, rod chamber communicating valve 3.If the supporting leg is oscillating support leg, then the monitoring device is monitoring supporting leg angle of oscillation
The angle sensor of degree；If the supporting leg is telescopic outrigger, then the monitoring device is to monitor the displacement biography of leg stretching length
Sensor.By monitoring device monitor supporting leg be unfolded situation, when any of which supporting leg it is not deployed in place when, controller is forbidden propping up
To avoid because the support stress of each supporting leg is different vehicle inclination occurs for the oil pocket connection for supportting oil cylinder.
As further preferred embodiment, the implement is fire fighting truck or forcible entry vehicle or concrete mixer or vapour
Vehicle crane.Above-mentioned all types of implement, the hydraulic support system of use can not be needed with Fast-Balance supporting leg stress
It adjusts repeatedly, so as to shorten the support leveling time, realizes quickly support.
The embodiment of the present invention additionally provides a kind of implement hydraulic pressure support method, and implement includes chassis, on chassis
Setting there are two front leg strut and two rear support legs, each front leg strut, each rear support leg end be respectively provided with that there are one for that will make
The support cylinder 1 of industry equipment support from the ground, the hydraulic pressure support method include the following steps：S1, four support cylinders 1 are all
Behind ground, support cylinder 1 extends the predetermined time (such as 5-7s) simultaneously, ensures that chassis tire is all liftoff；It is S2, whole according to implement
Vehicle angle level condition, controls the collapsing length of each support cylinder 1, and implement vehicle is adjusted to level；S3, make at least two
The rodless cavity of a support cylinder 1 is connected, rod chamber is connected, and makes whole support cylinders 1 while extending predetermined time (such as 1-
5s).Then hydraulic pressure support method provided in this embodiment is connected to supporting leg oil again after implement vehicle angle is adjusted to level
Chamber simultaneously jacks oil inlet simultaneously, realizes that oil inlet distributes automatically according to each supporting leg stressing conditions, while utilizing the dead-weight balanced supporting leg of vehicle
Stressing conditions, to Fast-Balance supporting leg stress, this supporting way need not adjust the flexible, it can be achieved that fast of each supporting leg repeatedly
Speed support leveling.
As further preferred embodiment, in step s3,1 rodless cavity of support cylinder of two front leg struts is made to be connected
Logical, rod chamber is connected, and makes that 1 rodless cavity of support cylinder of two rear support legs is connected, rod chamber is connected.In this way, front leg strut
Support cylinder and rear support leg support cylinder are respectively communicated with, and can reduce the difference of front leg strut and rear support leg actual loading situation to vehicle
Influence caused by levelness.
As further preferred embodiment, before step S3, monitor each supporting leg expands in place situation, when each
The expansion of supporting leg in place after, execute step S3.When any of which supporting leg it is not deployed in place when, forbid execute step S3,
Vehicle inclination occurs to avoid because the support stress of each supporting leg is different.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of hydraulic support system, including at least two for the support cylinder (1) by implement support from the ground, support oil
Cylinder (1) is connect by reversal valve with pressure oil-source, fuel tank, it is characterised in that：Further include rodless cavity communicating valve (2), rod chamber company
Port valve (3) between the rodless cavity of at least two support cylinders (1), passes through rodless cavity communicating valve respectively between rod chamber
(2), rod chamber communicating valve (3) connection or disconnection.
2. hydraulic support system according to claim 1, which is characterized in that including four support cylinders (1), two of which
It is rear support leg support cylinder for front leg strut support cylinder, two, the rodless cavity communicating valve (2), rod chamber communicating valve (3) are
Two, between the rodless cavity of two front leg strut support cylinders, pass through rodless cavity communicating valve (2), one between rod chamber respectively
A rod chamber communicating valve (3) connection disconnects, and passes through respectively between the rodless cavity of two rear support leg support cylinders, between rod chamber
Another rodless cavity communicating valve (2), the connection of another rod chamber communicating valve (3) disconnect.
3. hydraulic support system according to claim 2, which is characterized in that the rodless cavity oil of the support cylinder (1)
It is provided with hydraulic lock (4) on oil circuit between mouth, rod chamber hydraulic fluid port and reversal valve, the hydraulic lock (4) is provided with outside control mouth, outside
Control mouth is connected to control pressure oil sources by two position two-way valve (5).
4. a kind of implement, including chassis, there are two front leg strut and two rear support legs for setting on chassis, which is characterized in that also
Including the hydraulic support system described in claims 1 or 2 or 3, each front leg strut, each rear support leg end be respectively provided with there are one
Support cylinder (1).
5. implement according to claim 4, which is characterized in that further include controller and monitoring device, the monitoring
Device is used to monitor expanding in place situation and monitoring signals being sent to controller for each supporting leg, and the controller control is without bar
The break-make of chamber communicating valve (2), rod chamber communicating valve (3).
6. implement according to claim 5, which is characterized in that the supporting leg is oscillating support leg, the monitoring device
For monitor supporting leg swing angle angle sensor, and/or, the supporting leg be telescopic outrigger, the monitoring device be monitoring branch
The displacement sensor of leg collapsing length.
7. the implement according to claim 4 or 5 or described in 6, which is characterized in that the implement is fire fighting truck or forcible entry
Vehicle or concrete mixer or autocrane.
8. a kind of implement hydraulic pressure support method, implement includes chassis, and there are two front leg strut and two for setting on chassis
Rear support leg, each front leg strut, each rear support leg end be respectively provided with there are one for by implement support from the ground support oil
Cylinder (1), the hydraulic pressure support method include the following steps：
After S1, four support cylinders (1) all land, support cylinder (1) while the predetermined time is extended, ensures that chassis tire is whole
It is liftoff；
S2, the collapsing length for controlling each support cylinder (1), level is adjusted to by implement vehicle；
S3, make that the rodless cavity of at least two support cylinders (1) is connected, rod chamber is connected, and keep whole support cylinders (1) same
The Shi Shenchang predetermined times.
9. implement hydraulic pressure support method according to claim 8, which is characterized in that in step s3, before making two
Support cylinder (1) rodless cavity of supporting leg is connected, rod chamber is connected, and makes support cylinder (1) rodless cavity phase of two rear support legs
Connection, rod chamber are connected.
10. implement hydraulic pressure support method according to claim 8 or claim 9, which is characterized in that before step S3, monitoring
Each supporting leg expands in place situation, when each supporting leg expansion in place after, execute step S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293624.0A CN108799220A (en) | 2017-04-28 | 2017-04-28 | Hydraulic support system, implement and hydraulic pressure support method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293624.0A CN108799220A (en) | 2017-04-28 | 2017-04-28 | Hydraulic support system, implement and hydraulic pressure support method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108799220A true CN108799220A (en) | 2018-11-13 |
Family
ID=64069629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293624.0A Pending CN108799220A (en) | 2017-04-28 | 2017-04-28 | Hydraulic support system, implement and hydraulic pressure support method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108799220A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236771A (en) * | 2018-11-26 | 2019-01-18 | 徐工集团工程机械股份有限公司 | Leveling hydraulic system and engineering truck |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996553A (en) * | 2012-11-27 | 2013-03-27 | 三一重工股份有限公司 | Support leg hydraulic system and engineering machinery |
| CN103671314A (en) * | 2013-12-04 | 2014-03-26 | 中联重科股份有限公司 | Swing support leg mounting structure, control device, control system, control method and engineering machinery |
| CN205207302U (en) * | 2015-10-30 | 2016-05-04 | 长安大学 | Adjusting device is assisted to hydraulic leg |
-
2017
- 2017-04-28 CN CN201710293624.0A patent/CN108799220A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996553A (en) * | 2012-11-27 | 2013-03-27 | 三一重工股份有限公司 | Support leg hydraulic system and engineering machinery |
| CN103671314A (en) * | 2013-12-04 | 2014-03-26 | 中联重科股份有限公司 | Swing support leg mounting structure, control device, control system, control method and engineering machinery |
| CN205207302U (en) * | 2015-10-30 | 2016-05-04 | 长安大学 | Adjusting device is assisted to hydraulic leg |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236771A (en) * | 2018-11-26 | 2019-01-18 | 徐工集团工程机械股份有限公司 | Leveling hydraulic system and engineering truck |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
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| RJ01 | Rejection of invention patent application after publication |