CN204512017U - A kind of Novel pilot control valve group - Google Patents
A kind of Novel pilot control valve group Download PDFInfo
- Publication number
- CN204512017U CN204512017U CN201520122072.3U CN201520122072U CN204512017U CN 204512017 U CN204512017 U CN 204512017U CN 201520122072 U CN201520122072 U CN 201520122072U CN 204512017 U CN204512017 U CN 204512017U
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- valve
- control valve
- accumulator
- pilot control
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Abstract
The utility model discloses a kind of Novel pilot control valve group, comprise valve block, reduction valve, safety valve, one-way valve, solenoid directional control valve, accumulator, it is characterized in that: described valve block is integrated by reduction valve, safety valve, one-way valve, solenoid directional control valve, accumulator and instruction processing unit.There is provided pilot pressure oil can to excavator main valve by the utility model guide oil source valve group, promote main valve plug commutation, thus just can reduce by a low pressure pump, replace duplex pump with simplex pump, reduce cost of production, also reduce installation footprint simultaneously; Meanwhile, when equipment downtime, the fault offset that accumulator can store by the utility model out, continue control bound core commutation work, stablize, and ensure that excavator production safety by voltage supply; In addition, the setting of safety valve ensure that the utility model safety in utilization is higher.
Description
Technical field
The utility model relates to control valve technical field, is specifically related to a kind of Novel pilot control valve group by providing pilot pressure oil to promote main valve plug commutation.
Background technique
Current most of excavator hydraulic system uses duplex pump, a high-pressure service pump and a low pressure pump composition, and high-pressure service pump provides high-pressure high-flow fluid for digging machine excacation; Low pressure pump is that main valve plug commutation is for low-pressure, small flow fluid.Its cost of duplex pump is higher, needs larger installing space simultaneously.
Therefore, we need a kind of high pressure oil pump that can directly utilize to get the commutation that oil carrys out control bound core, thus can reduce by a low pressure pump, replace duplex pump with simplex pump, thus reduce cost of production, reduce the device of installation footprint simultaneously.
Summary of the invention
The purpose of this utility model to solve the problems of the prior art, a kind of directly utilize high pressure oil pump to get commutation that oil carrys out control bound core is provided, thus can reduce by a low pressure pump, duplex pump is replaced with simplex pump, thus reduction cost of production, reduce the Novel pilot control valve group of installation footprint simultaneously.
For achieving the above object, the technological scheme that adopts of the utility model is as follows:
A kind of Novel pilot control valve group, comprise valve block, reduction valve, safety valve, one-way valve, solenoid directional control valve, accumulator, it is characterized in that: described valve block is integrated by reduction valve, safety valve, one-way valve, solenoid directional control valve, accumulator and instruction processing unit.
Described valve block sidewall is provided with filler opening and oil outlet.
The position of described oil outlet on valve block sidewall is higher than described filler opening.
The caliber size of described filler opening and oil outlet is G1/4 ".
Be provided with two bottom described valve block and tapped hole is installed.
Described valve block is made up of spheroidal graphite cast iron.
Described valve block surface is coated with nickel.
Described accumulator is arranged on the sidewall of valve block.
The volume of described accumulator is 0.2L ~ 0.4L.
The volume of described accumulator is 0.3L.
Compared with prior art, the utility model has the advantage of:
1) provide pilot pressure oil can to excavator main valve by the utility model guide oil source valve group, promotion main valve plug commutates, to complete the actions such as excavation, two-speed switchover, fragmentation, thus just can reduce by a low pressure pump, duplex pump is replaced with simplex pump, reduce cost of production, also reduce installation footprint simultaneously;
2) accumulator that arranges of the utility model is except providing stable pilot pressure, also has stored energy function, can the hydraulic energy in system be changed into compression energy, when equipment downtime, the fault offset that accumulator can be stored out, continues control bound core commutation work, thus the utility model voltage supply is stablized, and can urgency be successfully managed, ensure excavator production safety;
3) setting of safety valve ensure that the utility model guide oil source valve group safety in utilization is higher.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of Novel pilot control valve group of the utility model embodiment;
Fig. 2 is the structure front elevational schematic of a kind of Novel pilot control valve group of the utility model embodiment;
Fig. 3 is the structure elevational schematic view of a kind of Novel pilot control valve group of the utility model embodiment.
In figure:
1, valve block; 11, filler opening; 12, oil outlet; 13, tapped hole is installed; 2, reduction valve; 3, safety valve; 4, one-way valve; 5, solenoid directional control valve; 6, accumulator.
Embodiment
Below in conjunction with accompanying drawing, introduce a kind of embodiment of the present utility model in detail.
As shown in FIG. 1 to 3, a kind of Novel pilot control valve group of the utility model embodiment, comprise valve block 1, reduction valve 2, safety valve 3, one-way valve 4, solenoid directional control valve 5, accumulator 6, meanwhile, valve block 1 is integrated by reduction valve 2, safety valve 3, one-way valve 4, solenoid directional control valve 5, accumulator 6 and instruction processing unit.Wherein, after reduction valve 2 receives instruction, its embedded instruction processing unit runs spool action, and control software design realizes the function of setting, thus realizes complicated systemic-function; Accumulator 6 can be eliminated pulsation, absorb hydraulic shock, ensures the pressure stability that pilot valves exports; Accumulator, except providing stable pilot pressure, also has stored energy function, changes the hydraulic energy in system into compression energy, and when equipment downtime, the fault offset that accumulator can be stored out, continues control bound core commutation work.
The present embodiment valve block 1 is made up of spheroidal graphite cast iron, and is coated with nickel on valve block 1 surface.Accumulator 6 is arranged on the sidewall of valve block 1, and the volume of this accumulator 6 is 0.3L.Meanwhile, valve block 1 sidewall is provided with filler opening 11 and oil outlet 12, and the caliber size of filler opening 11 and oil outlet 12 is G1/4 ", and the position of oil outlet 12 on valve block 1 sidewall is higher than filler opening 11.In addition, be provided with two bottom valve block 1 and tapped hole 13 is installed.
In use, the utility model embodiment filler opening 11 pressure maximum is 350Bar, and delivery pressure is 35 ± 2Bar.When reduction valve 2 lost efficacy, filler opening 11 pressure be greater than 50Bar and above time, safety valve 3 is opened, and filler opening 11 maintains 45 ± 5Bar, guarantees system process low-pressure state, play protection main valve effect.
Below by reference to the accompanying drawings mode of execution of the present utility model is explained in detail; but the utility model is not limited to above-mentioned mode of execution; in the ken that those of ordinary skill in the art possess; can also make various changes and modifications under the prerequisite not departing from the utility model aim, these changes and improvements all fall in the protection domain of the utility model requirement.
Claims (10)
1. a Novel pilot control valve group, comprise valve block (1), reduction valve (2), safety valve (3), one-way valve (4), solenoid directional control valve (5), accumulator (6), it is characterized in that: described valve block (1) is integrated by reduction valve (2), safety valve (3), one-way valve (4), solenoid directional control valve (5), accumulator (6) and instruction processing unit.
2. a kind of Novel pilot control valve group according to claim 1, is characterized in that: described valve block (1) sidewall is provided with filler opening (11) and oil outlet (12).
3. a kind of Novel pilot control valve group according to claim 2, is characterized in that: the position of described oil outlet (12) on valve block (1) sidewall is higher than described filler opening (11).
4. a kind of Novel pilot control valve group according to claim 2, is characterized in that: the caliber size of described filler opening (11) and oil outlet (12) is G1/4 ".
5. a kind of Novel pilot control valve group according to claim 1, is characterized in that: described valve block (1) bottom is provided with two and installs tapped hole (13).
6. a kind of Novel pilot control valve group according to any one of Claims 1 to 5, is characterized in that: described valve block (1) is made up of spheroidal graphite cast iron.
7. a kind of Novel pilot control valve group according to claim 6, is characterized in that: described valve block (1) surface is coated with nickel.
8. a kind of Novel pilot control valve group according to claim 1, is characterized in that: described accumulator (6) is arranged on the sidewall of valve block (1).
9. a kind of Novel pilot control valve group according to claim 1, is characterized in that: the volume of described accumulator (6) is 0.2L ~ 0.4L.
10. a kind of Novel pilot control valve group according to claim 9, is characterized in that: the volume of described accumulator (6) is 0.3L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520122072.3U CN204512017U (en) | 2015-03-03 | 2015-03-03 | A kind of Novel pilot control valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520122072.3U CN204512017U (en) | 2015-03-03 | 2015-03-03 | A kind of Novel pilot control valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512017U true CN204512017U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520122072.3U Active CN204512017U (en) | 2015-03-03 | 2015-03-03 | A kind of Novel pilot control valve group |
Country Status (1)
| Country | Link |
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| CN (1) | CN204512017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061428A (en) * | 2017-01-24 | 2017-08-18 | 王安基 | Energy regenerating reuse means and energy recycling system |
| CN108506265A (en) * | 2018-06-12 | 2018-09-07 | 裕泰液压技术(上海)有限公司 | A kind of fluid pressure type automatic adjusting balance valve group |
| CN114321040A (en) * | 2021-12-23 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Short-time high-power hydraulic energy system and method |
-
2015
- 2015-03-03 CN CN201520122072.3U patent/CN204512017U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061428A (en) * | 2017-01-24 | 2017-08-18 | 王安基 | Energy regenerating reuse means and energy recycling system |
| CN108506265A (en) * | 2018-06-12 | 2018-09-07 | 裕泰液压技术(上海)有限公司 | A kind of fluid pressure type automatic adjusting balance valve group |
| CN114321040A (en) * | 2021-12-23 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Short-time high-power hydraulic energy system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |