CN203420201U - Control loop with vibration absorption function for open-type vibration system of vibratory roller - Google Patents
Control loop with vibration absorption function for open-type vibration system of vibratory roller Download PDFInfo
- Publication number
- CN203420201U CN203420201U CN201320418996.9U CN201320418996U CN203420201U CN 203420201 U CN203420201 U CN 203420201U CN 201320418996 U CN201320418996 U CN 201320418996U CN 203420201 U CN203420201 U CN 203420201U
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- China
- Prior art keywords
- oil
- valve
- control loop
- directional valve
- vibratory roller
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- Expired - Fee Related
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- 238000010521 absorption reaction Methods 0.000 title abstract 3
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 17
- 230000035939 shock Effects 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to a control loop with the vibration absorption function for an open-type vibration system of a vibratory roller. The control loop is characterized by comprising a gear pump (1) connected with the oil inlet of an electromagnetic directional valve (4), wherein the oil return opening of the electromagnetic directional valve (4) is connected with an oil tank through a filter (2); a safety valve (3) is arranged between the oil inlet and the oil return opening of the electromagnetic directional valve (4); two working ports of the electromagnetic directional valve (4) are respectively connected with the oil inlets of two bidirectional balance valve groups (6); the oil outlets of the two bidirectional balance valve groups (6) are respectively connected with a port A and a port B of a motor (5). The control loop with the vibration absorption function for the open-type vibration system of the vibratory roller is stable in vibration start and vibration stop, effectively absorbs pressure impact, is short in vibration stop time, cannot easily cause failures of electric apparatus elements, and is comfortable in operation.
Description
Technical field
The utility model relates to a kind of control loop with shock sucking function vibratory roller open type vibrational system.
Background technology
At present in the open type vibrational system of road roller, during failure of oscillation, existence due to the vibrator inertia force running up, vibrator drives motor to do the running of pump operating mode, until overcome friction stops completely, its steel wheel failure of oscillation time obviously extends, and the low speed rotation part in whole failure of oscillation process can cause driver's cabin, motor, vehicle frame resonance, affects pavement compaction quality and operation comfort; Fierce resonance simultaneously easily causes the initial failure of electric elements, even can cause the fracture of some structural members, sheet member etc.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of open shake, failure of oscillation is steady, effective Absorbing hydraulic pulsation, the failure of oscillation time is short, be difficult for causing that electric elements lost efficacy, operate the comfortable control loop with shock sucking function vibratory roller open type vibrational system.
The purpose of this utility model is achieved in that
The utility model is with the control loop of shock sucking function vibratory roller open type vibrational system, comprise gear pump, described gear pump is connected with the oil-in of solenoid operated directional valve, the oil return opening of solenoid operated directional valve is connected with fuel tank by strainer, between the oil-in of described solenoid operated directional valve and oil return opening, be provided with safety valve, two actuator ports of described solenoid operated directional valve are connected with the oil-in of two Bidirectional balanced valve groups respectively, and the oil-out of described two Bidirectional balanced valve groups is connected with B mouth with the A mouth of motor respectively.
Described Bidirectional balanced valve group substitutes with one group of bidirectional hydraulic lock or two groups of one-way throttle valves.
Described solenoid operated directional valve is three position four-way electromagnetic valve, and Median Function is H type function.
The utility model has the following advantages with the control loop of shock sucking function vibratory roller open type vibrational system:
1, by one way valve, increase oil-feed back pressure, play to extend and open the time of shaking, reduce to open hydraulic pressure moment impact while shaking.
2, the return oil pressure by the sequence valve increase motor in equalizing valve group makes failure of oscillation steady.
3, simultaneously when after failure of oscillation, the back pressure of sequence valve is pressed and is had the inertia force that has overcome motor, and motor is stopped operating very soon, greatly shortens the failure of oscillation time, avoids low speed resonance region, greatly shortens the driver's cabin shake time, improves operation comfort.
Accompanying drawing explanation
Fig. 1 is that the utility model is with the structural representation of the control loop of shock sucking function vibratory roller open type vibrational system.
Fig. 2 is that the utility model is with the structural representation of the second embodiment of the control loop of shock sucking function vibratory roller open type vibrational system.
In figure: gear pump 1, strainer 2, safety valve 3, solenoid operated directional valve 4, motor 5, Bidirectional balanced valve group 6.
The specific embodiment
Referring to Fig. 1, the utility model relates to a kind of control loop with shock sucking function vibratory roller open type vibrational system, comprise gear pump 1, described gear pump 1 is connected with the oil-in of solenoid operated directional valve 4, the oil return opening of solenoid operated directional valve 4 is connected with fuel tank by strainer 2, between the oil-in of described solenoid operated directional valve 4 and oil return opening, be provided with safety valve 3, this solenoid operated directional valve 4 is three position four-way electromagnetic valve, Median Function is H type function, play meta Unloading Effect, two actuator ports of described solenoid operated directional valve 4 are connected with the oil-in of two Bidirectional balanced valve groups 6 respectively, the oil-out of described two Bidirectional balanced valve groups 6 is connected with B mouth with the A mouth of motor 5 respectively.
Before the A of described Bidirectional balanced valve group 6 connecting motors 5, B mouth, in equalizing valve group, sequence valve opening pressure is adjustable, by regulating the opening pressure of sequence valve, can obtain different failure of oscillation time and effectiveness in vibration suppression.The effect of this Bidirectional balanced valve group 6 is mainly: by one way valve, increase oil-feed back pressure, play to extend and open the time of shaking, reduce to open hydraulic pressure instant impact while shaking; The return oil pressure that increases motor by the sequence valve in equalizing valve group makes failure of oscillation steady; When after failure of oscillation, the back pressure of sequence valve is pressed and is had the inertia force that has overcome motor, and motor is stopped operating very soon, greatly shortens the failure of oscillation time, avoids low speed resonance region simultaneously, greatly shortens the driver's cabin shake time, improves operation comfort.
And Bidirectional balanced valve group 6 can substitute with one group of bidirectional hydraulic lock or two groups of one-way throttle valves, as shown in Figure 2.
In addition, different clients sets value by adjusting the opening pressure of sequence valve in equalizing valve, can obtain the own failure of oscillation time needing (about 3s left and right is good), obtains good vibration damping, shock attenuation result.
Claims (3)
1. the control loop with shock sucking function vibratory roller open type vibrational system, it is characterized in that: it comprises gear pump (1), described gear pump (1) is connected with the oil-in of solenoid operated directional valve (4), the oil return opening of solenoid operated directional valve (4) is connected with fuel tank by strainer (2), between the oil-in of described solenoid operated directional valve (4) and oil return opening, be provided with safety valve (3), two actuator ports of described solenoid operated directional valve (4) are connected with the oil-in of two Bidirectional balanced valve groups (6) respectively, the oil-out of described two Bidirectional balanced valve groups (6) is connected with B mouth with the A mouth of motor (5) respectively.
2. a kind of control loop with shock sucking function vibratory roller open type vibrational system according to claim 1, is characterized in that: described Bidirectional balanced valve group (6) substitutes with one group of bidirectional hydraulic lock or two groups of one-way throttle valves.
3. a kind of control loop with shock sucking function vibratory roller open type vibrational system according to claim 1 and 2, is characterized in that: described solenoid operated directional valve (4) is three position four-way electromagnetic valve, and meta is H type function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320418996.9U CN203420201U (en) | 2013-07-13 | 2013-07-13 | Control loop with vibration absorption function for open-type vibration system of vibratory roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320418996.9U CN203420201U (en) | 2013-07-13 | 2013-07-13 | Control loop with vibration absorption function for open-type vibration system of vibratory roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420201U true CN203420201U (en) | 2014-02-05 |
Family
ID=50019301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320418996.9U Expired - Fee Related CN203420201U (en) | 2013-07-13 | 2013-07-13 | Control loop with vibration absorption function for open-type vibration system of vibratory roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230611A (en) * | 2019-07-02 | 2019-09-13 | 中国铁建重工集团股份有限公司 | Hydraulic system and engineering mechanical equipment |
| CN110670451A (en) * | 2019-10-22 | 2020-01-10 | 柳工无锡路面机械有限公司 | Reversing valve group for open type vibration system of road roller |
-
2013
- 2013-07-13 CN CN201320418996.9U patent/CN203420201U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230611A (en) * | 2019-07-02 | 2019-09-13 | 中国铁建重工集团股份有限公司 | Hydraulic system and engineering mechanical equipment |
| CN110230611B (en) * | 2019-07-02 | 2024-03-08 | 中国铁建重工集团股份有限公司 | Hydraulic system and engineering machinery equipment |
| CN110670451A (en) * | 2019-10-22 | 2020-01-10 | 柳工无锡路面机械有限公司 | Reversing valve group for open type vibration system of road roller |
| CN110670451B (en) * | 2019-10-22 | 2024-05-24 | 柳工无锡路面机械有限公司 | Reversing valve group for open type vibration system of road roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20160713 |