CN203700910U - Paver and hydraulic transporting system thereof - Google Patents
Paver and hydraulic transporting system thereof Download PDFInfo
- Publication number
- CN203700910U CN203700910U CN201420010759.3U CN201420010759U CN203700910U CN 203700910 U CN203700910 U CN 203700910U CN 201420010759 U CN201420010759 U CN 201420010759U CN 203700910 U CN203700910 U CN 203700910U
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- oil
- pump
- motor
- valve
- oil circuit
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- 230000007480 spreading Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- 239000002828 fuel tank Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 37
- 239000010720 hydraulic oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model discloses a paver and a hydraulic transporting system thereof. The hydraulic transporting system for the paver comprises a pump, a first motor, a second motor, a first reversing valve, a second reversing valve, an oil tank, a switch valve, a first throttling gear and a second throttling gear, wherein an oil outlet of the pump is connected with a first oil way and a second oil way; the first oil way is used for controlling the first motor to work; the second oil way is used for controlling the second motor to work. Pressure oil provided by the pump drives the motor to rotate by two stages, so that impact of high pressure oil on the motor is reduced under the buffer action of the throttling gears, and meanwhile, the pavement efficiency is also ensured. In addition, shake of the paver is reduced due to reduction of pressure impact, the pavement quality is ensured, and furthermore, the service life of a hydraulic element is also prolonged.
Description
Technical field
The utility model relates to Hydraulic Field, particularly a kind of paver and conveying hydraulic system thereof.
Background technology
The problem that gets stuck causing due to a variety of causes in paving process in order to solve paver, generally need conveyer can realize rotating function, therefore existing spreading machine material conveying hydraulic system generally comprises hydraulic pump, overflow valve, fuel tank, two solenoid operated directional valves and two hydraulic motors, hydraulic pump is simultaneously for two hydraulic motors provide driving force, hydraulic motor drives conveyer to realize the conveying that paves and expect, oil circuit between hydraulic motor and hydraulic pump is provided with electromagnetism and changes reversal valve and overflow valve, in the time that needs are controlled hydraulic motor reversion, the spool transposition of solenoid operated directional valve, thereby realize rotating backward of conveyer, the releasing phenomenon that gets stuck, overflow valve plays overload protective function in addition, whole system is simple, it is convenient to control, but this hydraulic system exists and significantly starts shock problem, flow-rate ratio while startup due to hydraulic pump is larger, will inevitably cause larger impact to other Hydraulic Elements on hydraulic motor and oil circuit, the life-span of hydraulic pump and hydraulic motor is reduced, in addition, this impact also can make complete machine shake, affect paver effect.
Utility model content
In view of this, the utility model proposes a kind of paver and spreading machine material conveying hydraulic system, in not affecting construction with paving machine efficiency, reduced the impact to whole oil circuit when hydraulic pump starts, improve the application life of Hydraulic Elements, also improved paving effect.
On the one hand, the utility model provides a kind of spreading machine material conveying hydraulic system, comprises pump, the first motor, the second motor, the first reversal valve, the second reversal valve, fuel tank, switch valve, first throttle device and the second throttling arrangement; The oil-out of pump connects the first oil circuit and the second oil circuit, and the first oil circuit is used for controlling the first motor operations, and the second oil circuit is used for controlling the second motor operations;
The first oil circuit comprises the first branch road and the second branch road, on the oil circuit of the first branch road, the oil-in of first throttle device is connected with the oil-out of pump, the oil-out of first throttle device is connected with the P mouth of the first reversal valve, on the oil circuit of the second branch road, the first oil-in of switch valve is connected with the oil-out of pump, and the first oil-out of switch valve is connected with the P mouth of the first reversal valve, and the oil-out A of the first reversal valve is connected with two hydraulic fluid ports of the first motor respectively with oil-out B; The second oil circuit comprises the 3rd branch road and the 4th branch road, on the oil circuit of the 3rd branch road, the oil-in of the second throttling arrangement is connected with the oil-out of pump, the oil-out of the second throttling arrangement is connected with the P mouth of the second reversal valve, on the oil circuit of the 4th branch road, the second oil-in of switch valve is connected with the oil-out of pump, and the second oil-out of switch valve is connected with the P mouth of the second reversal valve, and the oil-out A of the second reversal valve is connected with two hydraulic fluid ports of the second motor respectively with oil-out B; The T mouth of the first reversal valve is connected with fuel tank respectively with the T mouth of the second reversal valve.
Further, pump comprises the first pump and the second pump, and the first pump is connected with the first hydraulic fluid port, and the second pump is connected with the second oil circuit.
Further, described pump is duplex pump, and two oil-outs of duplex pump connect respectively the first oil circuit and the second oil circuit.
Further, described throttling arrangement is flow regulator pieces, or throttle orifice, or elongated hole, or throttling joint.
Further, described the first reversal valve and/or the second reversal valve are three position four-way electromagnetic valve.
Further, described switch valve is two position four-way solenoid valves.
Further, described spreading machine material conveying hydraulic system also comprises the first overflow valve and the second overflow valve, and one end of the first overflow valve is connected with the oil-in of first throttle device and the first oil-in of switch valve, and the other end is connected with fuel tank; One end of the second overflow valve is connected with the oil-in of the second throttling arrangement and the second oil-in of switch valve, and the other end is connected with fuel tank.
On the other hand, the utility model also provides a kind of paver that above-mentioned any one spreading machine material conveying hydraulic system is installed.
A kind of spreading machine material conveying hydraulic system the utility model proposes, compared with prior art, owing to being connected throttling arrangement and switch valve on the oil circuit between pump and the first motor and the second motor, thereby change pump and driven the control procedure of the first motor and the second motor, the operating principle of this spreading machine material conveying hydraulic system is: pump can drive respectively the first motor and the second revolution by the first oil circuit and the second oil circuit, take the first oil circuit as example, under original state, switch valve is in closed condition, the hydraulic oil that pump provides flow through successively first throttle device and the first reversal valve, then drive the first revolution, after first revolution a period of time, switch valve is opened, now hydraulic oil transfers the switch valve of flowing through to, flow through again the first reversal valve and drive the first motor, pump drives the process of the second motor similar with the process of controlling the first motor, after pump starts to start, because hydraulic oil is through the throttling action of throttling arrangement, the pressure that initially arrives the hydraulic oil of the first motor or the second motor is decreased, reduce the percussion to the first motor and the second motor, thereby also reduce the shake of paver, improved paving effect, in addition, the efficiency that paves of paver also can not be affected, and the application life that reduces also to have extended Hydraulic Elements of compression shock, has saved use cost.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the hydraulic circuit schematic diagram of spreading machine material conveying hydraulic system in the utility model specific embodiment.
The specific embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model specific embodiment provides a kind of spreading machine material conveying hydraulic system, for controlling the conveying of paver, this spreading machine material conveying hydraulic system comprises the first pump 2, the second pump 1, the first motor 8, the second motor 9, the first reversal valve 7, the second reversal valve 6, fuel tank 10, switch valve 5, first throttle device 3 and the second throttling arrangement 4; The oil-out of the first pump 2 connects the first oil circuit, and the oil-out of the second pump 1 connects the second oil circuit, and the first oil circuit is used for controlling the first motor 8 works, and the second oil circuit is used for controlling the second motor 9 and works.
Particularly, the first reversal valve 7 and the second reversal valve 6 are three position four-way electromagnetic valve, and switch valve 5 is two position four-way solenoid valves, and the first motor 8 and the second motor 9 are reversing motor, and the first oil circuit comprises the first branch road and the second branch road; On the oil circuit of the first branch road, the oil-in of first throttle device 3 is connected with the oil-out of the first pump 2, and the oil-out of first throttle device 3 is connected with the P mouth of the first reversal valve 7; On the oil circuit of the second branch road, the first oil-in of switch valve 5 is connected with the oil-out of the first pump 2, the first oil-out of switch valve 5 is also connected with the P mouth of the first reversal valve 7, and the oil-out A of the first reversal valve 7 is connected with two hydraulic fluid ports of the first motor 8 respectively with oil-out B; The second oil circuit comprises the 3rd branch road and the 4th branch road, on the oil circuit of the 3rd branch road, the oil-in of the second throttling arrangement 4 is connected with the oil-out of the second pump 1, the oil-out of the second throttling arrangement 4 is connected with the P mouth of the second reversal valve 6, on the oil circuit of the 4th branch road, the second oil-in of switch valve 5 is connected with the oil-out of the second pump 1, the second oil-out of switch valve 5 is also connected with the P mouth of the second reversal valve 6, and the oil-out A of the second reversal valve 6 is connected with two hydraulic fluid ports of the second motor 9 respectively with oil-out B; The T mouth of the first reversal valve 7 is connected with fuel tank 10 respectively with the T mouth of the second reversal valve 6.
In order to prevent that oil circuit overload from causing damage to Hydraulic Elements, overflow valve is also set in hydraulic circuit, concrete, above-mentioned spreading machine material conveying hydraulic system also comprises the first overflow valve 11 and the second overflow valve 12, the oil-in of the first overflow valve 11 is connected with the oil-in of first throttle device 3 and the first oil-in of switch valve 5, and the oil-out of the first overflow valve 11 is connected with fuel tank 10; The oil-in of the second overflow valve 12 is connected with the oil-in of the second throttling arrangement 4 and the second oil-in of switch valve 5, and the oil-out of the second overflow valve 12 is connected with fuel tank 10.
Particularly, first throttle device 3 and the second throttling arrangement 4 can be flow regulator pieces, throttle orifice, elongated hole or throttling joint, as long as the hydraulic oil that can provide the first pump 2 and the second pump 1 is realized throttling action; In addition, preferably, the first pump 2 and the second pump 1 can be integrated into duplex pump, simplify the structure.
The operating principle of the spreading machine material conveying hydraulic system that the utility model specific embodiment provides is: first, the first pump 2 can drive the first motor 8 to rotate by the first oil circuit, the second pump 1 can drive the second motor 9 to rotate by the second oil circuit, because control mode and the process of the first oil circuit and the second oil circuit are similar, therefore describe as an example of the control of the first oil circuit example, when the first pump 2 starts, the first reversal valve 7 electric and its spool in right position, switch valve 5 is in power failure state, its spool is in right position, it is closed condition, the hydraulic oil that the first pump 2 provides is ended by switch valve 5 on the first branch road, but on the second branch road, hydraulic oil flow through successively first throttle device 3 and the first reversal valve 7, then drive the first motor 8 to rotate, behind certain hour interval, switch valve 5 obtains electric, spool moves to left position, in open mode, now hydraulic oil transfers the switch valve 5 of flowing through to, flow through again the first reversal valve 7 and continue to drive the first motor 8, in the meantime, the first pump 2 is always in driving the first motor 8 states, can not be interrupted during this time, therefore can not affect the conveying efficiency of conveyer, in the time that the spool of the first reversal valve 7 is positioned at left position, oil circuit is realized commutation, and the first motor 8 is realized reversion, in the time of conveying release, switch valve 5 dead electricity, the first electromagnetic valve 7 dead electricity behind a period of time interval, spool is positioned at meta, because the second pump 1 drives the process of the second motor 9 similar with the process of controlling the first motor 8, again do not elaborate.
It should be noted that, starting conveying when action, electromagnetic valve electric order be: the first reversal valve 7 and the second reversal valve 6 first electric, after the very short time interval, switch valve 5 must be electric; When conveying tenth skill, the dead electricity order of electromagnetic valve is: switch valve 5 dead electricity, and the first reversal valve 7 and the second reversal valve 6 dead electricity again after the very short time interval, the concrete time interval can be set according to concrete operating mode.
After the first pump 2 or the second pump 1 startup, because hydraulic oil is in the throttling action of throttling arrangement, the pressure that initially arrives the hydraulic oil of the first motor 8 or the second motor 9 is decreased, reduce the percussion to the first motor 8 and the second motor 9, thereby also reduce the shake of paver, improve paving effect, simultaneously the application life that reduces also to have extended Hydraulic Elements of compression shock, saved use cost; In addition, although the first pump 2 and the second pump 1 drive the step of the first motor 8 and the second motor 9 to divide for two steps, during can not make the first motor 8 and the second motor 9 stalls, therefore can not have influence on the conveying efficiency of conveyer.
In addition, this use and novel specific embodiment also provide a kind of paver, and due to above-mentioned any one spreading machine material conveying hydraulic system being installed, the complete machine shake while therefore having reduced conveying action, has improved spreading quality; In addition, due to reducing of compression shock, reduce the damage to Hydraulic Elements, improved Hydraulic Elements application life, therefore saved use cost.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a spreading machine material conveying hydraulic system, comprise pump, the first motor (8), the second motor (9), the first reversal valve (7), the second reversal valve (6) and fuel tank (10), it is characterized in that, also comprise switch valve (5), first throttle device (3) and the second throttling arrangement (4); The oil-out of pump connects the first oil circuit and the second oil circuit, and the first oil circuit is used for controlling the first motor (8) work, and the second oil circuit is used for controlling the second motor (9) work;
The first oil circuit comprises the first branch road and the second branch road, on the oil circuit of the first branch road, the oil-in of first throttle device (3) is connected with the oil-out of pump, the oil-out of first throttle device (3) is connected with the P mouth of the first reversal valve (7), on the oil circuit of the second branch road, the first oil-in of switch valve (5) is connected with the oil-out of pump, the first oil-out of switch valve (5) is connected with the P mouth of the first reversal valve (7), and the oil-out A of the first reversal valve (7) is connected with two hydraulic fluid ports of the first motor (8) respectively with oil-out B; The second oil circuit comprises the 3rd branch road and the 4th branch road, on the oil circuit of the 3rd branch road, the oil-in of the second throttling arrangement (4) is connected with the oil-out of pump, the oil-out of the second throttling arrangement (4) is connected with the P mouth of the second reversal valve (6), on the oil circuit of the 4th branch road, the second oil-in of switch valve (5) is connected with the oil-out of pump, the second oil-out of switch valve (5) is connected with the P mouth of the second reversal valve (6), and the oil-out A of the second reversal valve (6) is connected with two hydraulic fluid ports of the second motor (9) respectively with oil-out B; The T mouth of the first reversal valve (7) is connected with fuel tank (10) respectively with the T mouth of the second reversal valve (6).
2. spreading machine material conveying hydraulic system according to claim 1, is characterized in that, pump comprises the first pump (2) and the second pump (1), and the first pump (2) is connected with the first hydraulic fluid port, and the second pump (1) is connected with the second oil circuit.
3. spreading machine material conveying hydraulic system according to claim 1, is characterized in that, described pump is duplex pump, and two oil-outs of duplex pump connect respectively the first oil circuit and the second oil circuit.
4. spreading machine material conveying hydraulic system according to claim 1, is characterized in that, described throttling arrangement is flow regulator pieces, or throttle orifice, or elongated hole, or throttling joint.
5. spreading machine material conveying hydraulic system according to claim 1, is characterized in that, described the first reversal valve (7) and/or the second reversal valve (6) are three position four-way electromagnetic valve.
6. spreading machine material conveying hydraulic system according to claim 1, is characterized in that, described switch valve (5) is two position four-way solenoid valves.
7. according to the spreading machine material conveying hydraulic system described in claim 1-6 any one, it is characterized in that, also comprise the first overflow valve (11) and the second overflow valve (12), one end of the first overflow valve (11) is connected with the first oil-in of switch valve (5) with the oil-in of first throttle device (3), and the other end is connected with fuel tank (10); One end of the second overflow valve (12) is connected with the second oil-in of switch valve (5) with the oil-in of the second throttling arrangement (4), and the other end is connected with fuel tank (10).
8. a paver, is characterized in that, described paver is provided with the spreading machine material conveying hydraulic system described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010759.3U CN203700910U (en) | 2014-01-08 | 2014-01-08 | Paver and hydraulic transporting system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010759.3U CN203700910U (en) | 2014-01-08 | 2014-01-08 | Paver and hydraulic transporting system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203700910U true CN203700910U (en) | 2014-07-09 |
Family
ID=51051368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010759.3U Expired - Lifetime CN203700910U (en) | 2014-01-08 | 2014-01-08 | Paver and hydraulic transporting system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203700910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286441A (en) * | 2016-08-04 | 2017-01-04 | 湖南三路面机械有限公司 | Paver power hydraulic system and paver |
| CN110159606A (en) * | 2019-06-25 | 2019-08-23 | 山推工程机械股份有限公司 | A kind of hydraulic system and paver |
-
2014
- 2014-01-08 CN CN201420010759.3U patent/CN203700910U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286441A (en) * | 2016-08-04 | 2017-01-04 | 湖南三路面机械有限公司 | Paver power hydraulic system and paver |
| CN106286441B (en) * | 2016-08-04 | 2019-05-14 | 湖南三一路面机械有限公司 | Paver power hydraulic system and paver |
| CN110159606A (en) * | 2019-06-25 | 2019-08-23 | 山推工程机械股份有限公司 | A kind of hydraulic system and paver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200416 Address after: 413000 Yiyang Industrial Park, 31, East New District, Yiyang hi tech Zone, Yiyang City, Hunan Province Patentee after: Hunan Sany Zhongyi Machinery Co.,Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: HUNAN SANY ROAD MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |