CN204553937U - Parallel reducer unit - Google Patents
Parallel reducer unit Download PDFInfo
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- CN204553937U CN204553937U CN201520183415.7U CN201520183415U CN204553937U CN 204553937 U CN204553937 U CN 204553937U CN 201520183415 U CN201520183415 U CN 201520183415U CN 204553937 U CN204553937 U CN 204553937U
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- reduction valve
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Abstract
The utility model discloses a kind of parallel reducer unit, comprise multiple reduction valve, the valve body of the plurality of reduction valve is made, wherein, the filler opening of the plurality of reduction valve all communicates with each other and forms a total filler opening, and the oil outlet of the plurality of reduction valve is all independent of one another.Apply it, the installation of hydraulic system, operation can be simplified, and the Security of hydraulic system, stability and reliability can be improved.
Description
Technical field
The utility model relates to hydraulic valve, is specifically related to parallel reducer unit.
Background technique
Reduction valve is very important hydraulic element in Hydraulic Equipment, and according to the operating load of reality, different circuit provides the fluid of different pressures by respective reduction valve.
Generally, several equipment are often only with a set of hydraulic system (or hydraulic station).In the course of the work, distinct device load is different, and required pressure may be different, just need provide different pressure with different reduction valve.The maximum pressure of set pressure needed for system of hydraulic main circuit relief valve, the lower pressure needed for other duplexure is realized by different reduction valve.
Traditional hydraulic system multi-step pressure reduction is in the majority forms pressure reducing circuit realization decompression by one or several piloted reducer and several direct-acting overflow valve, selector valve etc.When to need several pressure simultaneously, need several reduction valve and pressure reducing circuit.Needed for this pressure reducing mode, hydraulic element are many, and loop is long, and installation, complicated operation, add the out of order risk of hydraulic system, hydraulic system stability and reliability decrease.Meanwhile, because loop is many, too increase the pressure loss of hydraulic system, reduce the efficiency of hydraulic system.
For this reason, expect to seek a kind of technological scheme, at least to alleviate the problems referred to above.
Summary of the invention
The technical problems to be solved in the utility model is, provides a kind of parallel reducer unit, applies it, can simplify the installation of hydraulic system, operation, and can improve the Security of hydraulic system, stability and reliability.
In order to solve the problems of the technologies described above, the utility model adopts following technical proposals.
A kind of parallel reducer unit, comprise multiple reduction valve, the valve body of the plurality of reduction valve is made, and wherein, the filler opening of the plurality of reduction valve all communicates with each other and forms a total filler opening, and the oil outlet of the plurality of reduction valve is all independent of one another.
The drain tap of described multiple reduction valve all communicates with each other and forms a total drain tap.
The utility model has following Advantageous Effects.
The filler opening of multiple reduction valve of the present utility model all communicates with each other thus forms a total filler opening, and the oil outlet of multiple reduction valve is all independent of one another.When the parallel reducer unit of this spline structure is applied to hydraulic system, by the corresponding pipeline communication of total filler opening with hydraulic system, the oil outlet of multiple reduction valve is communicated with can completes with the equipment of corresponding required pressure respectively, hydraulic element quantity can be reduced, reduce hydraulic circuit, pipeline is shortened greatly, the pressure loss reduces, thus simplify installation, the operation of hydraulic system, reduce fault ratio of hydraulic pressure system, increase work efficiency, make hydraulic system Security, reliability, stability obtain larger raising.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
For can technical characteristics of the present utility model and effect be described in detail, and can realize according to the content of this specification, below in conjunction with accompanying drawing, mode of execution of the present utility model be further illustrated.
Fig. 1 diagrammatically illustrates the parallel reducer unit of one of the present utility model, its valve body 5 is made into integration, this valve body 5 have two cavitys 51, valve body 5 also has two filler openings, 52, two drain taps 53 and two oil outlets 54,55, these filler openings 52, drain tap 53 and oil outlet 54,55 and cavity 51 respectively one_to_one corresponding are communicated with.All arrange a spool 4 in each cavity 51, spool 4 can to-and-fro motion in cavity 51, and mounting spring 3 between one end of spool 4 and valve rod 6, forms seal space between the end face of spool 4 and the respective inner walls of cavity 51.Be communicated with respectively by damping hole 56,57 with between corresponding seal space at oil outlet 54,55.The other end of valve rod 6 is outer and fixing with adjusting knob 1 through stretching out valve body 5 after valve gap 2, and have outside thread outside this end of valve rod 6, the internal thread in the hole that this valve rod of the confession of this outside thread and valve gap 2 passes screws formation feed screw nut pair.Valve gap 2 is fixed on valve body 5.Rotation of adjustment knob 1, can adjust the distance between spool 4 and valve rod 6, and then the tensioning degree of adjustment spring 3.Like this, valve body 5, valve gap 2 form two reduction valve respectively with respective knob 1, spring 3, spool 4 and valve rod 6.Wherein, the filler opening 52 of these two reduction valve all communicates with each other and forms a total oil inlet P, and the oil outlet 56,57 of these two reduction valve is all independent of one another.
In order to simplify the connection of job site pipeline, the drain tap 53 of above-mentioned two reduction valve all communicates with each other and forms a total drain tap L.
But iting is noted that the quantity of above-mentioned reduction valve is not particular value, can also be more, such as three, four etc., concrete quantity pressure regulation progression needed for engineering site hydraulic system is determined, thus realizes the multi-stage pressure regulating of a reduction valve.
Working principle of the present utility model is as follows.
When spool 4 is in initial position, total oil inlet P and oil outlet 54,55 are on state.When total oil inlet P oil-feed, fluid is flowed out by oil outlet 54,55, and simultaneously fluid enters seal space bottom spool by damping hole 56,57, and spool 4 is subject to hydraulic coupling upwards.When oil liquid pressure is less, the hydraulic coupling upwards that spool 4 is subject to is not enough to overcome the downward active force of spring 3, and it is motionless that spool 4 is in original position.The pressure of now oil outlet 54,55 outflow fluid is equal with the pressure that total oil inlet P flows into fluid, and the utility model does not reduce pressure.The pressure flowing into fluid when total oil inlet P raises gradually, by damping hole 56, 57 hydraulic couplings entered bottom spool 4 also raise gradually, when the hydraulic coupling upwards that spool 4 is subject to be greater than certain spring 3(as Fig. 1 in the spring in left side) downward active force and be less than another spring (in as Fig. 1 right side spring) downward active force time, in Fig. 1, the spool 4 in left side moves up, in Fig. 1, the spool 4 in left side diminishes with the opening degree of the oil circuit of oil outlet 54, fluid local pressure loss herein strengthens, the hydraulic coupling of the oil circuit of oil outlet 54 diminishes, oil liquid pressure bottom the spool 4 being entered in Fig. 1 left side by damping hole 56 is also diminished, hydraulic coupling upwards diminishes, in Fig. 1, the spool 4 in left side reaches a kind of new state of equilibrium and position gradually, now in Fig. 1, the spool 4 on right side does not move.Because spring force change is less, if think that spring force is constant, then the hydraulic coupling balanced with it also should be certain, and the pressure of oil outlet 54 is also constant.Namely when total oil inlet P place pressure is greater than spring force, no matter always how oil inlet P place pressure changes, and the pressure of oil outlet 54 is constant after decompression.
The pressure flowing into fluid when total oil inlet P continues to raise, and when the oil liquid pressure bottom the spool 4 being entered right side in Fig. 1 by damping hole 57 is greater than the spring 3 on right side in Fig. 1 downward active force, process is the same.Now in Fig. 1, the reduction valve in left side oil outlet 54 delivery pressure after decompression remains unchanged, and in Fig. 1, the reduction valve on right side oil outlet 55 delivery pressure after decompression remains unchanged for set up value.
By turning adjusting knob 1, spring 3 initial tension being changed, thus reaches the object of regulator solution pressing system duplexure working pressure.
It should be noted that, each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any applicable mode.In order to avoid unnecessary repetition, the utility model is no longer described various possible compound mode.
Being described in detail the utility model above with reference to embodiment, is illustrative and not restrictive, in the change do not departed under the utility model general plotting and amendment, all within protection domain of the present utility model.
Claims (2)
1. a parallel reducer unit, is characterized in that, comprises multiple reduction valve, the valve body of the plurality of reduction valve is made, wherein, the filler opening of the plurality of reduction valve all communicates with each other and forms a total filler opening, and the oil outlet of the plurality of reduction valve is all independent of one another.
2. parallel reducer unit according to claim 1, is characterized in that, the drain tap of described multiple reduction valve all communicates with each other and forms a total drain tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520183415.7U CN204553937U (en) | 2015-03-30 | 2015-03-30 | Parallel reducer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520183415.7U CN204553937U (en) | 2015-03-30 | 2015-03-30 | Parallel reducer unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553937U true CN204553937U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520183415.7U Active CN204553937U (en) | 2015-03-30 | 2015-03-30 | Parallel reducer unit |
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| Country | Link |
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| CN (1) | CN204553937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644167A (en) * | 2018-05-04 | 2018-10-12 | 广州市海同机电设备有限公司 | A kind of speed stabilizing mechanism and pressure feedback formula speed stabilizing valve of control valve |
| CN114321065A (en) * | 2021-12-28 | 2022-04-12 | 靖江市新博液压件有限公司 | Improved structure of pilot one-way overflow valve |
-
2015
- 2015-03-30 CN CN201520183415.7U patent/CN204553937U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644167A (en) * | 2018-05-04 | 2018-10-12 | 广州市海同机电设备有限公司 | A kind of speed stabilizing mechanism and pressure feedback formula speed stabilizing valve of control valve |
| CN114321065A (en) * | 2021-12-28 | 2022-04-12 | 靖江市新博液压件有限公司 | Improved structure of pilot one-way overflow valve |
| CN114321065B (en) * | 2021-12-28 | 2022-12-02 | 靖江市新博液压件有限公司 | Improved structure of pilot one-way overflow valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |