CN107100059A - A kind of vibrating hydraulic device of overload protection - Google Patents
A kind of vibrating hydraulic device of overload protection Download PDFInfo
- Publication number
- CN107100059A CN107100059A CN201610094790.3A CN201610094790A CN107100059A CN 107100059 A CN107100059 A CN 107100059A CN 201610094790 A CN201610094790 A CN 201610094790A CN 107100059 A CN107100059 A CN 107100059A
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- CN
- China
- Prior art keywords
- vibrating
- solenoid directional
- directional control
- control valve
- variable pump
- 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
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Classifications
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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
- E01C19/22—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 consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of vibrating hydraulic device of overload protection, including a variable pump and a fuel tank, the variable pump is provided with control stroking mechanism, and the control stroking mechanism includes the manipulation cylinder that solenoid directional control valve two and solenoid directional control valve two are connected；Also include two vibrating motors that variable pump is controlled, the vibrating motor is connected to solenoid directional control valve one；Also include a fuel tank for being used to provide hydraulic pressure fuel feeding to each component, a high-pressure safety valve is additionally provided with fuel tank conduit.By setting overload protection arrangement, prevent that oil pressure exceedes the value set in circuit lines, improves safety and reliability.
Description
Technical field
The present invention relates to a kind of vibrated roller, and a kind of more particularly it relates to vibrating hydraulic device of overload protection.
Background technology
In road construction, compacting machinary is most important.With the mechanization of building operation degree more and more higher increased with compacting machinary of volume of transport, requirement of the department to compacting machinary also more and more higher of constructing.However, when pressure peak exceedes the pressure of setting on the pipeline of some road roller hydraulic systems, easy pipelines from bursting.Therefore, its safety and reliability still has improved necessity.
The content of the invention
It is an object of the invention to provide a kind of vibrating hydraulic device of overload protection.
A kind of vibrating hydraulic device of overload protection involved in the present invention, including：One variable pump and a fuel tank, the variable pump is provided with control stroking mechanism, and the control stroking mechanism includes the manipulation cylinder that solenoid directional control valve two and solenoid directional control valve two are connected；Also include two vibrating motors that variable pump is controlled, the vibrating motor is connected to solenoid directional control valve one；Also include a fuel tank for being used to provide hydraulic pressure fuel feeding to each component, a high-pressure safety valve is additionally provided with fuel tank conduit.
In a kind of vibrating hydraulic device of overload protection of the present invention, two described vibrating motors connect into series loop.
In a kind of vibrating hydraulic device of overload protection of the present invention, described variable pump is two-way variable displacement pump, so as to can not only continuously adjust vibration frequency, and changes the direction of rotation of ticker to obtain two amplitudes.
The beneficial effects of the present invention are there is provided a kind of vibrating hydraulic device of overload protection, by setting overload protection arrangement, prevent that oil pressure exceedes the value set in circuit lines, improves safety and reliability.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：Cooler 1；Fuel tank 2；Oil filter 3；Overflow valve 4；High-pressure safety valve 5；Slippage pump 6；Pressure reversal valve 7；Solenoid directional control valve 1；Vibrating motor 9；One-way overflow valve 10；Solenoid directional control valve 2 11；Manipulate cylinder 12；Variable pump 13；Repairing individual event overflow valve 14.
Embodiment
Below in conjunction with the accompanying drawings, by following detailed description, to be more clearly understood that the above and other objects, features and advantages of the invention.Hereinafter, the preferred embodiment of the invention will be described in detail with reference to the accompanying drawings.
As shown in figure 1, a kind of vibratory hydraulic system with recharging oil device in the invention preferred embodiment, including each component connected by hydraulic oil pipeline：
Including a variable pump 13, the variable pump 13 is provided with control stroking mechanism, and the control stroking mechanism includes the manipulation cylinder 12 that solenoid directional control valve 2 11 and solenoid directional control valve 2 11 are connected.
When 2 11 no power of solenoid directional control valve, the valve is in middle position, and now the swash plate of variable pump 13 is center-deadhead position, and hydraulic oscillating motor 9 does not drive eccentric shaft turns, i.e., do not produce vibration；When solenoid directional control valve 2 11 is powered, cylinder 12 is manipulated by the control of solenoid directional control valve 2 11, conjugates the swash plate in variable pump 13, so that discharge capacity and the direction of liquid stream of controlling pump.
Also include two vibrating motors 9 that variable pump 13 is controlled, the vibrating motor 9 is connected to solenoid directional control valve 1；The solenoid directional control valve 1 connects an one-way overflow valve 10.
Two vibrating motors 9 connect into series loop, can select the less variable pump 13 of discharge capacity.Described variable pump 13 is two-way variable displacement pump 13, so as to can not only continuously adjust vibration frequency, and changes the direction of rotation of ticker to obtain two amplitudes.
The mode of operation of two vibrating motors 9 can be controlled by solenoid directional control valve 1, single-wheel vibration or two-wheel vibration, amplitude oscillation or low amplitude vibrations are realized.
Described one-way overflow valve 10 can prevent the overload of motor under various working methods, play a part of super safety overflow.
Preferably, a pressure reversal valve 7 can be connected between the solenoid directional control valve 1 and one-way overflow valve 10.
Described pressure reversal valve 7 is a shuttle valve.The high side pressure of closed circuit vibrates the transposition of its valve element, allows the part deep fat of oil return side to pass through, through the oil return box 2 of cooler 1.
Pressure reversal valve 7 and solenoid directional control valve 1 during work include following state：
（1）Left and right motor series connection is rotated forward：Oil-feed on the left of major loop, right side oil return, pressure reversal valve 7 is operated in right position, and solenoid directional control valve 1 is in middle position；
（2）The series connection reversion of side-to-side vibrations motor 9：Oil-feed on the right side of major loop, left side oil return, pressure reversal valve 7 is operated in left position, and solenoid directional control valve 1 is in middle position；
（3）Left motor is rotated forward or the reversion of right motor：Pressure reversal valve 7 and solenoid directional control valve 1 are all in right position；
（4）Left motor or right motor are rotated forward：Pressure reversal valve 7 and solenoid directional control valve 1 are all in left position；
（5）Side-to-side vibrations motor 9 does not work, and variable pump 13 is in zero-displacement condition, and pressure reversal valve 7 and solenoid directional control valve 1 are all in middle position.
In addition, described variable pump 13 is connected to a slippage pump 6 being connected with cooler 1；The slippage pump 6 connects a repairing one-way overflow valve 14, and the repairing one-way overflow valve 14 connects an overflow valve 4, and the overflow valve 4 connects the housing of variable pump 13；
When closed oil circuit makes fluid not enough due to leakage, by slippage pump 6 the cold oil cooled down through cooler 1 can be by a repairing one-way overflow valve 14 to low tension loop repairing, and the oil temperature in pipeline is reduced, and repairing one-way overflow valve 14 is closed in the presence of pressure duct oil pressure.The oil pressure of low pressure is more than the pressure that overflow valve 4 is set, and the remaining oil of slippage pump 6 flows into the housing of variable pump 13 by overflow valve 4, pump is cooled down and lubricated, then oil return box 2.Because repairing amount is more much larger than amount of leakage, some total deep fat is replaced, and reaches cooling purpose.
In addition, being additionally provided with a high-pressure safety valve 5 on the conduit of fuel tank 2.
The pressure peak that described high-pressure safety valve 5 is used for place system two way circuit exceedes the pressure of setting and set.When circuit pressure exceedes this value, high-pressure safety valve 5, which is turned on, makes pressure limit in setting value, so as to protect Hydraulic Elements, increases the safety and reliability of system.
Although the preferred embodiment of the invention is disclosed for illustrative purpose, but those skilled in the art should be understood, on the premise of the scope and spirit created without departing substantially from appended claims present invention disclosed, various modifications, increase and adulterium are all possible, it should be noted that should all cover within the scope of authority of the invention without departing substantially from above-mentioned various modifications, increase and the adulterium on the premise of the invention scope and spirit.
Claims (3)
1. a kind of vibrating hydraulic device of overload protection, each component connected by hydraulic oil pipeline is constituted, it is characterised in that including：One variable pump and a fuel tank, the variable pump is provided with control stroking mechanism, and the control stroking mechanism includes the manipulation cylinder that solenoid directional control valve two and solenoid directional control valve two are connected；Also include two vibrating motors that variable pump is controlled, the vibrating motor is connected to solenoid directional control valve one；Also include a fuel tank for being used to provide hydraulic pressure fuel feeding to each component, a high-pressure safety valve is additionally provided with fuel tank conduit.
2. the vibrating hydraulic device of a kind of overload protection as claimed in claim 1, it is characterised in that two described vibrating motors connect into series loop.
3. the vibrating hydraulic device of a kind of overload protection as claimed in claim 1, it is characterised in that described variable pump is two-way variable displacement pump, so as to can not only continuously adjust vibration frequency, and changes the direction of rotation of ticker to obtain two amplitudes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094790.3A CN107100059A (en) | 2016-02-22 | 2016-02-22 | A kind of vibrating hydraulic device of overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094790.3A CN107100059A (en) | 2016-02-22 | 2016-02-22 | A kind of vibrating hydraulic device of overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100059A true CN107100059A (en) | 2017-08-29 |
Family
ID=59658305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610094790.3A Pending CN107100059A (en) | 2016-02-22 | 2016-02-22 | A kind of vibrating hydraulic device of overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111601928A (en) * | 2018-01-19 | 2020-08-28 | 酒井重工业株式会社 | Construction vehicle |
-
2016
- 2016-02-22 CN CN201610094790.3A patent/CN107100059A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111601928A (en) * | 2018-01-19 | 2020-08-28 | 酒井重工业株式会社 | Construction vehicle |
| CN111601928B (en) * | 2018-01-19 | 2022-07-26 | 酒井重工业株式会社 | Construction vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170829 |