CN206917954U - Quick pressure releasing protecting against shock hydraulic control unit - Google Patents
Quick pressure releasing protecting against shock hydraulic control unit Download PDFInfo
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- CN206917954U CN206917954U CN201720759742.1U CN201720759742U CN206917954U CN 206917954 U CN206917954 U CN 206917954U CN 201720759742 U CN201720759742 U CN 201720759742U CN 206917954 U CN206917954 U CN 206917954U
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Abstract
The utility model discloses a kind of quick pressure releasing protecting against shock hydraulic control unit, belongs to hydraulic system.It is a difference in that increase two-stage lets out plug-in unit in advance compared with general pressure release control unit, plays cushioning effect, adds the control oil that hydraulic control guiding valve control plug-in unit has quickly let out the big plug-in unit that stimulates the menstrual flow, the quick oil-discharging after pressure lowers.Impact is reduced, reduces the hydraulic control unit of venting duration.Suitable for hydraulic forging press, the various high speed hydraulic press such as hot extrusion hydraulic press.
Description
Technical field
It the utility model is related to field of hydraulic control, and in particular to a kind of hydraulic pressure unloading control unit, especially have
The hydraulic control unit of quick pressure releasing and protecting against shock function.
Background technology
As people pursue high efficiency, and the requirement of some new technologies, the discharge rate requirement to hydraulic press is increasingly
It is high.Or the former big pressure release of pressure relief device plug-in unit valve is fast, hydraulic shock is big, produces strong vibration and noise, reduces hydraulic pressure system
The reliability and stability of system, hydraulic seal is damaged, reduce the service life of Hydraulic Elements, impacting caused vibration can also shadow
Ring the machining accuracy of equipment.The small pressure release of plug-in unit is slow, and hydraulic shock is small, venting duration length, influences operating efficiency, it is impossible to simultaneously
Meet quick pressure releasing and impact small requirement.
The content of the invention
The purpose of this utility model be to provide one kind can quick pressure releasing, can prevent again due to punching caused by quick pressure releasing
Hit the quick pressure releasing protecting against shock hydraulic control unit that the problem of excessive occurs.
To achieve these goals, the utility model includes, the first two-way plug-in valve, the second two-way plug-in valve, the three or two
Logical inserted valve, first throttle valve, second throttle, check valve, two-position three-way electromagnetic ball valve, hydraulic control guiding valve；
First two-way plug-in valve, the second two-way plug-in valve, the 3rd two-way plug-in valve include a control mouth C and two
Individual fluid gateway A, B；
The two-bit triplet Solenoid ball valve, including fluid gateway D, E positioned at homonymy and the F mouths positioned at opposite side, two
Position threeway Solenoid ball valve includes two kinds of working conditions, and for the first working position D mouths under unpowered state to F mouth oil-feeds, E mouths are obstructed,
The second working position after energization, F mouths are to E mouth oil-feeds, and D mouths are obstructed, and the F mouths connect with the C mouths of the second two-way plug-in valve；
The hydraulic control guiding valve, also it is two-bit triplet structure, wherein the first working position J mouths, to I mouth oil-feeds, H mouth oil circuits are obstructed,
I mouths are to H mouth oil-feeds in second working position, and J mouths are obstructed, and J mouths connect with the C mouths of the 3rd two-way plug-in valve；
Also include the first control oil circuit, first control oil circuit one end connects with working connection, the other end and two-position three-way electromagnetic
The D mouths connection of ball valve；
Fluid enters working connection through oil pump, enters tie point by first throttle valve through working connection and the 3rd two-way inserts
The A mouths of valve；
Tie point connects oil communication, the C mouths and second of the first connection two-way plug-in valve of oil communication first with first
The A mouths of two-way plug-in valve, the B mouths of the second two-way plug-in valve connect with oil return circuit；
The second throttle is arranged on the first connection oil circuit, and the check valve is arranged on annular oil circuit, annular oil
The oil inlet end and oil outlet end on road are located at the both ends of second throttle, and the check valve control fluid is only capable of in annular oil circuit to the
The C mouth oil-feeds of one two-way plug-in valve,
Also include second branch road, the second branch road connects the A mouths and working connection of the first two-way plug-in valve, and the first two-way is inserted
The B mouths of dress valve connect with oil return circuit；
Also include one second control oil circuit, one end of the second control oil circuit connects with working connection, the other end and hydraulic control
The hydraulic control oil inlet connection of guiding valve；
Also include one second connection oil circuit, second connection oil circuit one end and first second throttle for connecting oil circuit and
Connected between first two-way plug-in valve, the other end connects with the J mouths of hydraulic control guiding valve；
Also include one the 4th connection oil circuit, the H mouths and oil return circuit of the 4th connection oil communication hydraulic control guiding valve；
Also include a third connecting oil circuit, the E mouths of third connecting oil communication two-position three-way electromagnetic ball valve and oil return oil
Road.
Two-position three-way electromagnetic ball valve, when being not powered on, the first working position D mouths are to F mouth oil-feeds, and E mouths are obstructed, now the second two-way
Cartridge valve controlled donsole oil pressure is identical with working connection, and A mouths and B mouths are obstructed, now first and the 3rd two-way plug-in valve be also at closure
State.
After energization, two-position three-way electromagnetic ball valve enters the second working position, and fluid is discharged into oil return oil by F mouths to E mouth oil-feeds
Road, the control mouth pressure release of the second two-way plug-in valve, the connection of A mouth B mouths, a part of fluid of working connection pass through the second two-way plug-in valve
Into oil return circuit,
Meanwhile first two-way plug-in valve under the control of check valve and second throttle, part is opened, and allows fluid by the
One two-way plug-in valve is discharged into oil return circuit.Now, fluid has discharged part by the first two-way plug-in valve, the second two-way plug-in valve
Fluid, two inserted valves while emptying, while ensureing discharge velocity, avoid the occurrence of to impact caused by quick emptying under high pressure and shake
It is dynamic, realize that two-stage is let out in advance, reduce oil pressure.
Hereafter, remaining fluid, because the oil pressure in working connection declines, hydraulic control guiding valve changes to the second working position, now liquid
3rd two-way plug-in valve C mouths control fluid is discharged into oil return circuit, the 3rd two-way plug-in valve is beaten by control slide valve, I mouths to H mouth oil-feeds
Open, A mouths connect with B mouths, and now, the control fluid of the first two-way plug-in valve connects oil circuit through the 3rd two-way plug-in valve by second
B mouths enter the second two-way plug-in valve after flowing into tie point from A mouths, are discharged into oil return circuit, and now, the first two-way plug-in valve is whole
Open, fluid quick pressure releasing under shock-free state.
By arrangement above, the control unit only needs to control the i.e. achievable two-stage of opening and closing of electromagnetism two-position three way ball valve pre-
Let out, and quick pressure releasing, quickly, without impact.Further it can be suitable for by the opening-closing size for adjusting two choke valves at adjustment
The optimal working condition of different oil liquid pressures, working environment and equipment.Whole control unit, simple for structure, easy to control, work
Make efficiency high, service life length, later maintenance is simple, is promoted suitable for a wide range of.
Brief description of the drawings
Fig. 1 is state when control unit does not work.
Fig. 2 is control unit working condition.
Fig. 3 is two-way plug-in valve schematic diagram.
Fig. 4 is two-position three-way electromagnetic ball valve schematic diagram.
Fig. 5 is the schematic diagram of hydraulic control guiding valve 6.
In figure, including the first two-way plug-in valve 1, the second two-way plug-in valve 4, the 3rd two-way plug-in valve 7, first throttle valve 8,
Second throttle 3, check valve 2, two-position three-way electromagnetic ball valve 5, hydraulic control guiding valve 6；
101st, working connection, the 102, tie point, 103, first connection oil circuit, 104, annular oil circuit, the 105, first control oil
Road, 106, oil return circuit, the 107, second branch road, the 108, second control oil circuit, the 109, second connection oil circuit, 110, third connecting oil
Road, the 111, the 4th connection oil circuit.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, the utility model includes, a kind of quick pressure releasing protecting against shock hydraulic control unit, including the one or two
Logical inserted valve 1, the second two-way plug-in valve 4, the 3rd two-way plug-in valve 7, first throttle valve 8, second throttle 3, check valve 2, two
Position threeway Solenoid ball valve 5, hydraulic control guiding valve 6；
First two-way plug-in valve 1, the second two-way plug-in valve 4, the 3rd two-way plug-in valve 7 include a control mouth C
With two fluid gateways A, B；
The two-bit triplet Solenoid ball valve 5, including fluid gateway D, E positioned at homonymy and the F mouths positioned at opposite side, two
Position threeway Solenoid ball valve 5 includes two kinds of working conditions, and for the first working position D mouths under unpowered state to F mouth oil-feeds, E mouths are obstructed,
The second working position after energization, F mouths are to E mouth oil-feeds, and D mouths are obstructed, and the F mouths connect with the C mouths of the second two-way plug-in valve 4；
The hydraulic control guiding valve 6, also it is two-bit triplet structure, wherein the first working position J mouths, to I mouth oil-feeds, H mouths oil circuit is not
Logical, I mouths are to H mouth oil-feeds in the second working position, and J mouths are obstructed, and J mouths connect with the C mouths of the 3rd two-way plug-in valve 7；
Also include the first control oil circuit 105, first control one end of oil circuit 105 connects with working connection 101, the other end and two
The D mouths connection of threeway Solenoid ball valve 5；
Fluid enters working connection 101 through oil pump P, enters the He of tie point 102 by first throttle valve 8 through working connection 101
The A mouths of 3rd two-way plug-in valve 7；
Tie point 102 connects oil circuit 103 with first and connected, and the first connection oil circuit 103 connects the first two-way plug-in valve 1
The A mouths of C mouths and the second two-way plug-in valve 4, the B mouths of the second two-way plug-in valve 4 connect with oil return circuit 106；
The second throttle 3 is arranged on the first connection oil circuit 103, and the check valve 2 is arranged on annular oil circuit 104
On, the oil inlet end and oil outlet end of annular oil circuit 104 are located at the both ends of second throttle 3, and the check valve 2 controls fluid in annular
The C mouth oil-feeds to the first two-way plug-in valve 1 are only capable of in oil circuit 104,
Also including second branch road 107, the second branch road 107 connects the A mouths and working connection 101 of the first two-way plug-in valve 1,
The B mouths of first two-way plug-in valve 1 connect with oil return circuit 106；
Also include one second control oil circuit 108, one end of the second control oil circuit 108 connects with working connection 101, another
End connects with the hydraulic control oil inlet of hydraulic control guiding valve 6；
Also include one second connection oil circuit 109, the second connection one end of oil circuit 109 connects the of oil circuit 103 with first
Connected between two choke valves 3 and the first two-way plug-in valve 1, the other end connects with the J mouths of hydraulic control guiding valve 6；
Also include one the 4th connection oil circuit 111, the 4th connection oil circuit 111 connects the H mouths and oil return circuit of hydraulic control guiding valve 6
106；
Also include a third connecting oil circuit 110, third connecting oil circuit 110 connect two-position three-way electromagnetic ball valve 5 E mouths and
Oil return circuit 106.
When needing pressure release, two-position three-way electromagnetic ball valve is opened, controls the unlatching size of the first and second choke valves.
Claims (1)
1. a kind of quick pressure releasing protecting against shock hydraulic control unit, it is characterised in that including the first two-way plug-in valve (1), the two or two
Logical inserted valve (4), the 3rd two-way plug-in valve (7), first throttle valve (8), second throttle (3), check valve (2), two-position three way
Solenoid ball valve (5), hydraulic control guiding valve (6)；
First two-way plug-in valve (1), the second two-way plug-in valve (4), the 3rd two-way plug-in valve (7) include a control mouth
C and two fluid gateway A, B；
The two-bit triplet Solenoid ball valve (5), including fluid gateway D, E positioned at homonymy and the F mouths positioned at opposite side, two
Threeway Solenoid ball valve (5) includes two kinds of working conditions, and for the first working position D mouths under unpowered state to F mouth oil-feeds, E mouths are obstructed,
The second working position after energization, F mouths are to E mouth oil-feeds, and D mouths are obstructed, and the F mouths connect with the C mouths of the second two-way plug-in valve (4)；
The hydraulic control guiding valve (6), also it is two-bit triplet structure, wherein the first working position J mouths, to I mouth oil-feeds, H mouth oil circuits are obstructed,
I mouths are to H mouth oil-feeds in second working position, and J mouths are obstructed, and J mouths connect with the C mouths of the 3rd two-way plug-in valve (7)；
Also include the first control oil circuit (105), first control oil circuit (105) one end connects with working connection (101), the other end and two
The D mouths connection of position threeway Solenoid ball valve (5)；
Fluid enters working connection (101) through oil pump (P), enters tie point by first throttle valve (8) through working connection (101)
(102) and the 3rd two-way plug-in valve (7) A mouths；
Tie point (102) connects oil circuit (103) connection with first, and the first connection oil circuit (103) connects the first two-way plug-in valve
(1) C mouths and the A mouths of the second two-way plug-in valve (4), the B mouths of the second two-way plug-in valve (4) connect with oil return circuit (106)；
The second throttle (3) is arranged on the first connection oil circuit (103), and the check valve (2) is arranged on annular oil circuit
(104) on, the oil inlet end and oil outlet end of annular oil circuit (104) are located at the both ends of second throttle (3), check valve (2) control
Liquefaction liquid is only capable of the C mouth oil-feeds to the first two-way plug-in valve (1) in annular oil circuit (104),
Also include second branch road (107), the second branch road (107) connects the A mouths and working connection of the first two-way plug-in valve (1)
(101), the B mouths of the first two-way plug-in valve (1) connect with oil return circuit (106)；
Also include one second control oil circuit (108), one end of the second control oil circuit (108) connects with working connection (101), separately
One end connects with the hydraulic control oil inlet of hydraulic control guiding valve (6)；
Also include one second connection oil circuit (109), the second connection oil circuit (109) one end connects oil circuit (103) with first
Connected between second throttle (3) and the first two-way plug-in valve (1), the other end connects with the J mouths of hydraulic control guiding valve (6)；
Also include one the 4th connection oil circuit (111), the H mouths and oil return oil of the 4th connection oil circuit (111) connection hydraulic control guiding valve (6)
Road (106)；
Also include a third connecting oil circuit (110), the E mouths of third connecting oil circuit (110) connection two-position three-way electromagnetic ball valve (5)
With oil return circuit (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759742.1U CN206917954U (en) | 2017-06-28 | 2017-06-28 | Quick pressure releasing protecting against shock hydraulic control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759742.1U CN206917954U (en) | 2017-06-28 | 2017-06-28 | Quick pressure releasing protecting against shock hydraulic control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917954U true CN206917954U (en) | 2018-01-23 |
Family
ID=61322705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720759742.1U Active CN206917954U (en) | 2017-06-28 | 2017-06-28 | Quick pressure releasing protecting against shock hydraulic control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206917954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343884A (en) * | 2020-11-05 | 2021-02-09 | 北京航天发射技术研究所 | Two-stage pilot-controlled high-speed large-flow switch valve and method |
-
2017
- 2017-06-28 CN CN201720759742.1U patent/CN206917954U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343884A (en) * | 2020-11-05 | 2021-02-09 | 北京航天发射技术研究所 | Two-stage pilot-controlled high-speed large-flow switch valve and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xuzhou Industrial Park Jiawang District 221000 Jiangsu city of Xuzhou Province on the west side of the new road Patentee after: Xuzhou Da Heavy Forging Technology Co., Ltd. Address before: Xuzhou Industrial Park Jiawang District 221000 Jiangsu city of Xuzhou Province on the west side of the new road Patentee before: XUZHOU YIZHONG FORGING EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |