CN102561165A - Milling machine and sprinkling and flushing device thereof - Google Patents
Milling machine and sprinkling and flushing device thereof Download PDFInfo
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- CN102561165A CN102561165A CN2012100071544A CN201210007154A CN102561165A CN 102561165 A CN102561165 A CN 102561165A CN 2012100071544 A CN2012100071544 A CN 2012100071544A CN 201210007154 A CN201210007154 A CN 201210007154A CN 102561165 A CN102561165 A CN 102561165A
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Abstract
The invention relates to a sprinkling and flushing device. The device comprises a low pressure water pump driving motor, a low pressure water pump, a reversing valve, a high pressure water pump driving motor and a high pressure water pump, wherein the low pressure water pump is connected with the low pressure water pump driving motor; the high pressure water pump is connected with the high pressure water pump driving motor; the oil inlet of the reversing valve is connected with a hydraulic oil circuit; the first oil through port of the reversing valve is connected with the low pressure water pump driving motor; the second oil through port of the reversing valve is connected with the high pressure water pump driving motor; when the reversing valve is in a first working state, the hydraulic oil circuit is connected from the reversing valve to the low pressure water pump driving motor to drive the low pressure water pump to work; and the reversing valve is in a second working state, the hydraulic oil circuit is connected from the reversing valve to the high pressure water pump driving motor to drive the high pressure water pump to work. The problems that water and hydraulic oil are mixed and the conventional sprinkling and flushing device is inconvenient to maintain, has a complicated integral structure and is high in cost in case of a fault are solved.
Description
Technical field
The present invention relates to the road maintenance construction machinery, particularly relate to a kind of milling machine and watering flusher thereof.
Background technology
Milling machine is one of main machine of asphalt pavement conserving construction machinery, is mainly used in asphalt concrete surface layers removings such as highway, urban road and gathers around bag, oil wave, reticulate pattern, rut etc.
The watering flusher of large-scale milling machine comprises low pressure watering unit and sprays water with high pressure the flushing unit.The effect of low pressure watering unit is that milling and planing drum is cooled off and eliminates dust; The effect of flushing unit of spraying water with high pressure is the residual asphalt that bonds on flushing cleaning complete machine, the flushing milling and planing drum etc.
As shown in Figure 1, for present state, inside and outside the formation sketch map of the existing watering of large-scale milling machine flusher.The flushing unit that sprays water with high pressure of this watering flusher mainly is made up of reversal valve 1, integrated form high-pressure hydraulic pump 2, water filler 3, giant 4, constant pressure liquid press pump 7, water tank 8, hydraulic oil container 9; Said integrated form high-pressure hydraulic pump 2 is high-pressure hydraulic pumps that a kind of hydraulic drive and water transmission are integrated, and hydraulic drive chamber, water drive cavity are sealed by same group of potted component in the high-pressure hydraulic pump.
The low pressure watering unit of the watering flusher of the large-scale milling machine of this kind is made up of hydraulic pump 5, electric hydraulic control valve 6, low-pressure pump 10, water tank 11, hydraulic oil container 9.
Yet; The watering flusher of the large-scale milling machine of this kind remains in following defective: during integrated form high-pressure hydraulic pump seal failure generation water leakage fault that (1) is adopted; Water in the integrated form high-pressure hydraulic pump and hydraulic oil can be ganged up, and pollute hydraulic oil, cause the hydraulic oil emulsification of going bad; Need change integrated form high-pressure hydraulic pump and hydraulic oil when (2) keeping in repair, maintenance cost is high; (3) flushing unit and the low pressure watering unit that sprays water with high pressure need adopt two hydraulic pumps, two electric hydraulic control valves to control respectively altogether, complex structure, cost height.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of watering flusher, to solve existing watering flusher water and hydraulic oil is ganged up, inconvenient maintenance, complicated integral structure and the high problem of cost when breaking down.
Technical problem to be solved by this invention also is to provide a kind of milling machine with above-mentioned watering flusher.
The present invention provides a kind of watering flusher; Comprise low-pressure pump CD-ROM drive motor, low-pressure pump, reversal valve, high-pressure hydraulic pump CD-ROM drive motor, reach high-pressure hydraulic pump; Low-pressure pump links to each other with the low-pressure pump CD-ROM drive motor, and high-pressure hydraulic pump links to each other with the high-pressure hydraulic pump CD-ROM drive motor, and the oiler of reversal valve links to each other with hydraulic circuit; The first logical hydraulic fluid port of reversal valve links to each other with the low-pressure pump CD-ROM drive motor, and the second logical hydraulic fluid port of reversal valve links to each other with the high-pressure hydraulic pump CD-ROM drive motor; When reversal valve was in first duty, hydraulic circuit was pulled to the low-pressure pump CD-ROM drive motor to drive low-pressure pump work from said reversal valve; When reversal valve was in second duty, hydraulic circuit was pulled to the high-pressure hydraulic pump CD-ROM drive motor to drive high-pressure hydraulic pump work from said reversal valve.
As further improvement of the present invention; Said reversal valve is a three position four-way directional control valve, and the low-pressure pump CD-ROM drive motor links to each other with the first logical hydraulic fluid port of three position four-way directional control valve, and the high-pressure hydraulic pump CD-ROM drive motor links to each other with the second logical hydraulic fluid port of three position four-way directional control valve; When reversal valve is in first duty; The oiler of three position four-way directional control valve and the first logical hydraulic fluid port are connected, and when reversal valve was in second duty, the oiler of three position four-way directional control valve and the second logical hydraulic fluid port were connected.
As further improvement of the present invention, also comprise hydraulic pump and hydraulic oil container, the oiler of hydraulic pump links to each other with hydraulic oil container, and the oiler of three position four-way directional control valve links to each other with the oil-out of hydraulic pump.
As further improvement of the present invention, also be connected with the hydraulic pressure overflow valve between the oiler of three position four-way directional control valve and the hydraulic oil container, the hydraulic pressure overflow valve also links to each other with the oil-out of hydraulic pump simultaneously.
As further improvement of the present invention, also comprise giant and water tank, giant and water tank all link to each other with high-pressure hydraulic pump.
As further improvement of the present invention, high-pressure hydraulic pump is the plunger type high-pressure water pump.
As further improvement of the present invention, high-pressure hydraulic pump and high-pressure hydraulic pump CD-ROM drive motor are two independently elements, and high-pressure hydraulic pump and high-pressure hydraulic pump CD-ROM drive motor are coupled to each other together.
As further improvement of the present invention, between high-pressure hydraulic pump and the high-pressure hydraulic pump CD-ROM drive motor connecting flange is installed, the power transmission shaft of high-pressure hydraulic pump CD-ROM drive motor connects with the axle of high-pressure hydraulic pump.
As further improvement of the present invention, the power transmission shaft of high-pressure hydraulic pump CD-ROM drive motor connects with the axle of high-pressure hydraulic pump through key.
The present invention also provides a kind of milling machine with above-mentioned watering flusher.
The invention has the beneficial effects as follows: when watering flusher of the present invention had avoided high-pressure hydraulic pump water leakage fault to occur, water bled hydraulic system and the generation of polluting hydraulic pressure oily condition; When high-pressure hydraulic pump generation water leakage fault, only need to change high-pressure hydraulic pump, the high-pressure hydraulic pump CD-ROM drive motor need not changed, and hydraulic oil can not leak contaminatedly and rotten because of high-pressure hydraulic pump yet, and the maintaining cost is effectively reduced; Watering flusher mesohigh hydroblasting function and low pressure sprinkle water function can a shared reversal valve and hydraulic pumps; Adopt two hydraulic pumps, two electric hydraulic control valves to compare with prior art, features simple structure is reliable, manufacturing and maintenance cost reduce greatly.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of manual, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the formation sketch map of the watering flusher of milling machine in the prior art.
Fig. 2 is the formation sketch map of the watering flusher of milling machine in the preferred embodiment of the present invention.
Fig. 3 is the connection sketch map of watering flusher mesohigh water pump shown in Figure 2 and high-pressure hydraulic pump CD-ROM drive motor.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the specific embodiment, structure, characteristic and the effect thereof that the present invention proposes, specify as after.
Please with reference to Fig. 2, be the formation sketch map of watering flusher in the preferred embodiment of the present invention, it can apply in the milling machine.This watering flusher comprises low-pressure pump CD-ROM drive motor 20, low-pressure pump 19, reversal valve 21, high-pressure hydraulic pump 22, giant 23, hydraulic pump 24, hydraulic oil container 25, high-pressure hydraulic pump CD-ROM drive motor 26, water tank 27.Wherein, The oiler of hydraulic pump 24 links to each other with hydraulic oil container 25; The oiler of reversal valve 21 links to each other with the oil-out of hydraulic pump 24; Low-pressure pump CD-ROM drive motor 20 links to each other with one of them logical hydraulic fluid port (the first logical hydraulic fluid port) of reversal valve 21, and high-pressure hydraulic pump CD-ROM drive motor 26 links to each other with another logical hydraulic fluid port (the second logical hydraulic fluid port) of reversal valve 21, and the oil return opening of reversal valve 21 links to each other with hydraulic oil container 25; High-pressure hydraulic pump 22 is coupled to each other with high-pressure hydraulic pump CD-ROM drive motor 26, and giant 23 and water tank 27 all link to each other with high-pressure hydraulic pump 22.
For the oiler pressure of keeping reversal valve 21 is bordering on constant and based on the safeguard protection effect, also is connected with hydraulic pressure overflow valve 29 between the oiler of reversal valve 21 and the hydraulic oil container 25, this hydraulic pressure overflow valve 29 also links to each other with the oil-out of hydraulic pump 24 simultaneously.
Low-pressure pump 19 links to each other with low-pressure pump CD-ROM drive motor 20, and low-pressure pump 19 is driven by low-pressure pump CD-ROM drive motor 20, and low-pressure pump 19 also links to each other with water tank 27.High-pressure hydraulic pump CD-ROM drive motor 26 is driven through reversal valve 21 controls by hydraulic pump 24; High-pressure hydraulic pump 22 links to each other with high-pressure hydraulic pump CD-ROM drive motor 26; High-pressure hydraulic pump 22 is driven by high-pressure hydraulic pump CD-ROM drive motor 26; High-pressure hydraulic pump 22 is two independently elements with high-pressure hydraulic pump CD-ROM drive motor 26, and high-pressure hydraulic pump 22 is independent sealed for separately with high-pressure hydraulic pump CD-ROM drive motor 26.For the impurity in the filtered water, also be connected with water filler 28 between water tank 27 and the high-pressure hydraulic pump 22.High-pressure hydraulic pump 22 is preferably the plunger type high-pressure water pump.
Please be the connection sketch map of high-pressure hydraulic pump 22 and high-pressure hydraulic pump CD-ROM drive motor 26 simultaneously with reference to Fig. 3, high-pressure hydraulic pump 22 is coupled to each other together through draw bail 30 with high-pressure hydraulic pump CD-ROM drive motor 26.Particularly; High-pressure hydraulic pump 22 is fixed on the frame 40 of milling machine; Draw bail 30 comprises bolt 32, packing ring 33, key 34, joint bolt 35, packing ring 36 and connecting flange 37; Wherein connecting flange 37 is arranged between high-pressure hydraulic pump 22 and the high-pressure hydraulic pump CD-ROM drive motor 26, and connecting flange 37 is connected on the high-pressure hydraulic pump 22 through joint bolt 35 and packing ring 36, and high-pressure hydraulic pump CD-ROM drive motor 26 is connected on the connecting flange 37 through bolt 32 and packing ring 33; The power transmission shaft of high-pressure hydraulic pump CD-ROM drive motor 26 (figure does not show) connects with the axle 221 of high-pressure hydraulic pump 22 through key 34, thereby realizes transmission of power.Wherein, key 34 can be flat key or spline.
In present embodiment shown in Figure 2, reversal valve 21 is the solenoid operated directional valve of 3-position 4-way, and it has side a and b, and the meta function is the Y type, and below to be example with this solenoid operated directional valve shown in Figure 2 describe the operating principle of watering flusher:
When reversal valve 21 did not connect electricity, hydraulic circuit was disconnected, and this moment, low-pressure pump CD-ROM drive motor 20 can not turn round with high-pressure hydraulic pump CD-ROM drive motor 26, and low-pressure pump 19 is not worked with high-pressure hydraulic pump 22.
When the B of reversal valve 21 termination electricity; Reversal valve 21 is in first duty; The oiler of reversal valve 21 and the first logical hydraulic fluid port are connected; Hydraulic circuit is pulled to low-pressure pump CD-ROM drive motor 20 from reversal valve 21, drives low-pressure pump 19 work by low-pressure pump CD-ROM drive motor 20, can realize the low pressure sprinkle water function; High-pressure hydraulic pump CD-ROM drive motor 26 does not turn round at this moment, and high-pressure hydraulic pump 22 is not worked, and high-pressure hydraulic pump 22 is in off working state.
When the A of reversal valve 21 termination electricity, reversal valve 21 is in second duty, and the oiler of reversal valve 21 and the second logical hydraulic fluid port are connected; Hydraulic circuit is pulled to high-pressure hydraulic pump CD-ROM drive motor 26 from reversal valve 21; 26 runnings of high-pressure hydraulic pump CD-ROM drive motor also drive high-pressure hydraulic pump 22 work, can realize the washing capacity that sprays water with high pressure, and high-pressure hydraulic pump 22 is in running order; Low-pressure pump CD-ROM drive motor 20 does not turn round at this moment, and low-pressure pump 19 is not worked.
In the above-mentioned watering flusher; Having made up the sprinkle water design scheme of a shared hydraulic pump and a reversal valve of spray water with high pressure flushing and low pressure; The watering flusher that can be used as large-scale milling machine; Adopt two hydraulic pumps, two electric hydraulic control valves to compare with prior art, features simple structure is reliable, manufacturing and maintenance cost reduce greatly; Owing to adopted independently independently high-pressure hydraulic pump of high-pressure hydraulic pump drive motor; When having avoided that water leakage fault appears in the integrated form high-pressure hydraulic pump in the prior art; Water bleeds hydraulic system and pollutes the defective of hydraulic oil; And when the water leakage fault maintenance appears in high-pressure hydraulic pump, only need to change high-pressure hydraulic pump, high-pressure hydraulic pump CD-ROM drive motor and hydraulic oil need not to change.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (10)
1. watering flusher; It is characterized in that: comprise low-pressure pump CD-ROM drive motor, low-pressure pump, reversal valve, high-pressure hydraulic pump CD-ROM drive motor, reach high-pressure hydraulic pump; Low-pressure pump links to each other with the low-pressure pump CD-ROM drive motor, and high-pressure hydraulic pump links to each other with the high-pressure hydraulic pump CD-ROM drive motor, and the oiler of reversal valve links to each other with hydraulic circuit; The first logical hydraulic fluid port of reversal valve links to each other with the low-pressure pump CD-ROM drive motor, and the second logical hydraulic fluid port of reversal valve links to each other with the high-pressure hydraulic pump CD-ROM drive motor; When reversal valve was in first duty, hydraulic circuit was pulled to the low-pressure pump CD-ROM drive motor to drive low-pressure pump work from said reversal valve; When reversal valve was in second duty, hydraulic circuit was pulled to the high-pressure hydraulic pump CD-ROM drive motor to drive high-pressure hydraulic pump work from said reversal valve.
2. watering flusher as claimed in claim 1; It is characterized in that: said reversal valve is a three position four-way directional control valve; The low-pressure pump CD-ROM drive motor links to each other with the first logical hydraulic fluid port of three position four-way directional control valve; The high-pressure hydraulic pump CD-ROM drive motor links to each other with the second logical hydraulic fluid port of three position four-way directional control valve, and when reversal valve was in first duty, the oiler of three position four-way directional control valve and the first logical hydraulic fluid port were connected; When reversal valve was in second duty, the oiler of three position four-way directional control valve and the second logical hydraulic fluid port were connected.
3. watering flusher as claimed in claim 2 is characterized in that: also comprise hydraulic pump and hydraulic oil container, the oiler of hydraulic pump links to each other with hydraulic oil container, and the oiler of three position four-way directional control valve links to each other with the oil-out of hydraulic pump.
4. watering flusher as claimed in claim 3 is characterized in that: also be connected with the hydraulic pressure overflow valve between the oiler of three position four-way directional control valve and the hydraulic oil container, the hydraulic pressure overflow valve also links to each other with the oil-out of hydraulic pump simultaneously.
5. watering flusher as claimed in claim 1 is characterized in that: also comprise giant and water tank, giant and water tank all link to each other with high-pressure hydraulic pump.
6. watering flusher as claimed in claim 1 is characterized in that: high-pressure hydraulic pump is the plunger type high-pressure water pump.
7. watering flusher as claimed in claim 1 is characterized in that: high-pressure hydraulic pump and high-pressure hydraulic pump CD-ROM drive motor are two independently element and high-pressure hydraulic pump and high-pressure hydraulic pump CD-ROM drive motor are coupled to each other together.
8. watering flusher as claimed in claim 7 is characterized in that: between high-pressure hydraulic pump and the high-pressure hydraulic pump CD-ROM drive motor connecting flange is installed, the power transmission shaft of high-pressure hydraulic pump CD-ROM drive motor connects with the axle of high-pressure hydraulic pump.
9. watering flusher as claimed in claim 7 is characterized in that: the power transmission shaft of high-pressure hydraulic pump CD-ROM drive motor connects with the axle of high-pressure hydraulic pump through key.
10. milling machine, it is characterized in that: this milling machine has each described watering flusher of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210007154.4A CN102561165B (en) | 2012-01-11 | 2012-01-11 | Milling machine and sprinkling and flushing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210007154.4A CN102561165B (en) | 2012-01-11 | 2012-01-11 | Milling machine and sprinkling and flushing device thereof |
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| CN102561165A true CN102561165A (en) | 2012-07-11 |
| CN102561165B CN102561165B (en) | 2014-03-26 |
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| CN201210007154.4A Active CN102561165B (en) | 2012-01-11 | 2012-01-11 | Milling machine and sprinkling and flushing device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828460A (en) * | 2012-09-12 | 2012-12-19 | 三一重工股份有限公司 | High and low pressure integrated water sprinkler system and engineering machine |
| CN103290773A (en) * | 2013-06-17 | 2013-09-11 | 广西柳工机械股份有限公司 | Milling device |
| CN103696350A (en) * | 2014-01-10 | 2014-04-02 | 戴纳派克（中国）压实摊铺设备有限公司 | Milling machine watering control system and control method thereof |
| WO2015043377A1 (en) * | 2013-09-24 | 2015-04-02 | 三一汽车制造有限公司 | Auxiliary hydraulic system and concrete pumping device |
| CN104791230A (en) * | 2015-04-02 | 2015-07-22 | 徐州徐工筑路机械有限公司 | Control system for changing pressure of single water pump |
| CN107354852A (en) * | 2017-07-14 | 2017-11-17 | 徐州徐工筑路机械有限公司 | A kind of high-pressure cleaning device control system and milling mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762898B (en) * | 2016-11-22 | 2018-07-10 | 柳工无锡路面机械有限公司 | A kind of pavement milling machine height hydraulic pressure switching mechanism and water injection system and method |
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| CN2858744Y (en) * | 2005-12-27 | 2007-01-17 | 三一重工股份有限公司 | Poleless speed regulation driving device for whole course of milling machine |
| CN101205938A (en) * | 2007-12-04 | 2008-06-25 | 镇江华晨华通路面机械有限公司 | Floating hydraulic system for end gate of pavement milling and planning machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102828460A (en) * | 2012-09-12 | 2012-12-19 | 三一重工股份有限公司 | High and low pressure integrated water sprinkler system and engineering machine |
| WO2014040350A1 (en) * | 2012-09-12 | 2014-03-20 | 湖南三一智能控制设备有限公司 | High and low pressure integrated water sprinkler system and engineering machinery |
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| CN103290773A (en) * | 2013-06-17 | 2013-09-11 | 广西柳工机械股份有限公司 | Milling device |
| CN103290773B (en) * | 2013-06-17 | 2015-08-12 | 广西柳工机械股份有限公司 | Milling equipment |
| WO2015043377A1 (en) * | 2013-09-24 | 2015-04-02 | 三一汽车制造有限公司 | Auxiliary hydraulic system and concrete pumping device |
| CN103696350A (en) * | 2014-01-10 | 2014-04-02 | 戴纳派克（中国）压实摊铺设备有限公司 | Milling machine watering control system and control method thereof |
| WO2015103908A1 (en) * | 2014-01-10 | 2015-07-16 | 戴纳派克（中国）压实摊铺设备有限公司 | Water sprinkling control system of milling machine and control method therefor |
| CN103696350B (en) * | 2014-01-10 | 2016-01-20 | 戴纳派克（中国）压实摊铺设备有限公司 | Milling machine sprinkling control system and control method thereof |
| CN104791230A (en) * | 2015-04-02 | 2015-07-22 | 徐州徐工筑路机械有限公司 | Control system for changing pressure of single water pump |
| CN107354852A (en) * | 2017-07-14 | 2017-11-17 | 徐州徐工筑路机械有限公司 | A kind of high-pressure cleaning device control system and milling mechanism |
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