CN108708888A - Fluid pressure line explosion-proof valve - Google Patents
Fluid pressure line explosion-proof valve Download PDFInfo
- Publication number
- CN108708888A CN108708888A CN201810791560.1A CN201810791560A CN108708888A CN 108708888 A CN108708888 A CN 108708888A CN 201810791560 A CN201810791560 A CN 201810791560A CN 108708888 A CN108708888 A CN 108708888A
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- CN
- China
- Prior art keywords
- valve
- valve pocket
- oil
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 82
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims abstract description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims abstract description 3
- 241000018646 Pinus brutia Species 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 34
- 239000010720 hydraulic oil Substances 0.000 abstract description 13
- 238000005474 detonation Methods 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract description 2
- 239000002828 fuel tank Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of fluid pressure line explosion-proof valves, it includes valve body, valve pocket, spool and spring, the both ends of the valve inner valve opening are respectively the first hydraulic fluid port and the second hydraulic fluid port, the valve pocket is fixed on the middle part of valve opening, in the assignment hole for being internally provided with connection valve pocket both sides oil pocket of valve pocket, the middle part pine of the spool is sleeved in the centre bore of valve pocket, spool one end corresponding with the first hydraulic fluid port is equipped with oil baffle corresponding with the assignment hole on valve pocket, one end corresponding with the second hydraulic fluid port is equipped with adjusting nut, the spring pocket is on spool, one end of spring is withstood on oil baffle, the other end is withstood on the halfpace on valve pocket center bore inner wall.When the present invention is connected in the oil feed line of hydraulic system, if booster or detonation accident occur for the rear part, oil baffle can shut the port of valve pocket under the action of pressure at both sides difference, oil feed line is set to be disconnected with defective pipe or executive component, to prevent a large amount of leakages of hydraulic oil, the further expansion of equipment breakdown is avoided.
Description
Technical field
In hydraulic system detonation can occur the present invention relates to one kind or when booster, the hydraulic pressure for preventing hydraulic oil from largely leaking
Valve belongs to fluid pressure actuator technical field.
Background technology
With the development of hydraulic technique, hydraulic test is more and more wider in the application of iron and steel metallurgical industry, many hydraulic tests
Apply high temperature, high pressure, high humidity environment in, inevitably result in the leakage of hydraulic oil.Hydraulic test oil leak not only can shadow
Being normally carried out for production is rung, and environmental pollution can be caused, therefore it is a very important job to control oil leakage of hydraulic system.
Hydraulic leak component is mainly the executive component of working site -- oil cylinder（Or motor）, it is exactly secondly from hydraulic control valve
Group arrives the fluid pressure line between the executive component at scene.When detonation or booster occurs, the hydraulic oil in hydraulic station is in hydraulic pump
Under the action of hydraulic pressure oil leakage in the extremely short time will make fuel tank it is complete, cause whole production line to be paralysed and cause a large amount of hydraulic pressure
Oil leakage.How to effectively prevent a large amount of leakages of hydraulic oil when detonation or booster is always the problem that related technical staff faces.
Invention content
It is an object of the invention to be directed to the drawback of the prior art, a kind of fluid pressure line explosion-proof valve is provided, to prevent hydraulic pressure
Hydraulic oil when detonation or booster occur for system in fuel tank largely leaks.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of fluid pressure line explosion-proof valve, composition include valve body, valve pocket, spool and spring, the both ends of the valve inner valve opening
Respectively the first hydraulic fluid port and the second hydraulic fluid port, the valve pocket are fixed on the middle part of valve opening, and connection valve pocket two is internally provided in valve pocket
The middle part pine of the assignment hole of side oil pocket, the spool is sleeved in the centre bore of valve pocket, spool one end corresponding with the first hydraulic fluid port
Equipped with oil baffle corresponding with the assignment hole on valve pocket, one end corresponding with the second hydraulic fluid port is equipped with adjusting nut, the bullet
Spring is sleeved on spool, and one end of spring is withstood on oil baffle, and the other end is withstood on the halfpace on valve pocket center bore inner wall.
Above-mentioned fluid pressure line explosion-proof valve, the assignment hole setting in the valve pocket is multiple, they are uniform around the centre bore of valve pocket
Distribution.
Above-mentioned fluid pressure line explosion-proof valve, spool one end corresponding with the second hydraulic fluid port is additionally provided with fastening nut, described
Fastening nut abuts against on adjusting nut.
Above-mentioned fluid pressure line explosion-proof valve, multiple assignment holes in the valve pocket are circular hole, and each assignment hole is close to gear oil
One end of plate and the centre bore of valve pocket converge.
Above-mentioned fluid pressure line explosion-proof valve, passes through screw-thread fit between the valve pocket and the inner wall of valve opening.
When the present invention is connected in the oil feed line of hydraulic system, if booster or detonation accident, oil baffle occur for the rear part
Valve pocket can be shut towards the port in the first hydraulic fluid port direction under the action of pressure at both sides difference, make oil feed line and defective pipe or
Executive component disconnects, and to prevent a large amount of leakages of hydraulic oil in fuel tank, avoids the further expansion of equipment breakdown.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is sectional view along A-A；
Fig. 3 is application schematic diagram of the present invention in hydraulic system.
It is marked in figure as follows：1, the first hydraulic fluid port, 2, valve body, 3, oil baffle, 4, spring, 5, valve opening, 6, valve pocket, 7, flow
Hole, 8, adjusting nut, the 9, second hydraulic fluid port, 10, spool, 11, fastening nut, the 12, first fluid pressure line explosion-proof valve, 13, hydraulic cylinder,
14, the second fluid pressure line explosion-proof valve, 15, check valve, 16, three position four-way directional control valve.
Specific implementation mode
The present invention is directed to the drawback of the prior art, provides a kind of fluid pressure line explosion-proof valve, when generation detonation or booster event
When barrier, which can cut off the pipeline of oil leak in time, prevent hydraulic oil from largely leaking.
As shown in Figure 1 and Figure 2, the invention mainly comprises valve body 2, spool 10, spring 4, valve pocket 6, adjusting nut 8 and fastenings
Nut 11, valve body 2 is interior to be equipped with valve opening 5, and the both ends of valve opening 5 are equipped with the hydraulic fluid port being connect with exterior line, 1 He of respectively the first hydraulic fluid port
Second hydraulic fluid port 9 has internal thread inside two hydraulic fluid ports, in order to be connected with fluid pressure line, valve pocket 6, valve pocket 6 is equipped in valve opening 5
Spool 10 is inside installed, is connected through a screw thread between the inner wall and the outer cylinder of valve pocket 6 of 2 inside valve opening 5 of valve body, 6 both ends of valve pocket
Oil pocket is connected to by the assignment hole 7 being arranged in valve pocket 6, and one end of spool 10 is equipped with oil baffle 3, and there are two spiral shells for other end installation
Mother, one is adjusting nut 8, and one is fastening nut 11, is equipped with spring 4 between valve pocket 6 and spool 10, the two of spring 4
End is withstood on respectively on the halfpace on 6 center bore inner wall of oil baffle 3 and valve pocket.When oil baffle 3 is bonded with the end face of valve pocket 6, match
The centre bore of discharge orifice 7 and valve pocket 6 is blocked by oil baffle 3, and the oil circuit between the first hydraulic fluid port 1 and the second hydraulic fluid port 9 disconnects, adjusting nut
8 for adjusting the elastic force mounted on the spring 4 between valve pocket 6 and spool 10, that is, the work of adjusting spool 10 and the closure of valve pocket 6
Firmly.
In its natural state, the oil baffle 3 of 10 end of spool leaves valve pocket 6 under spring force, remains certain
Valve port opening.Hydraulic oil can be flowed freely from the second hydraulic fluid port 9 to the first hydraulic fluid port 1.Liquid stream flows to the second hydraulic fluid port 9 from the first hydraulic fluid port 1
When, due to flow resistance, there are pressure differences for valve port, i.e., at 10 both ends of spool, there are one differential pressure actions identical with flow direction
Power.In normal operation, this power is no more than spring force, and valve port is to open, and hydraulic oil can normally circulate.If second
When the pipelines from bursting of 9 side of hydraulic fluid port or detonation, the flow of first the 1 to the second hydraulic fluid port of hydraulic fluid port 9 can sharply increase, when the stream by valve port
When dynamic resistance is more than spring force, the oil baffle 3 of 10 end of spool is pressed on the end face of valve pocket 6, and fluid pressure line explosion-proof valve can be at once
It closes, the hydraulic oil in hydraulic system is prevented to continue to leak.
Attached drawing 3 is a kind of application schematic diagram of the present invention in hydraulic system, and the hydraulic system in figure includes：3-position 4-way
Reversal valve 16, the first fluid pressure line explosion-proof valve 12, hydraulic cylinder 13 and the second fluid pressure line explosion-proof valve 14, check valve 15.First liquid
Pressure pipe road explosion-proof valve 12 and the second fluid pressure line explosion-proof valve 14 are mounted on the outlet of three position four-way directional control valve 16（A mouthfuls, B mouthfuls）Pipeline
On, and the first hydraulic fluid port of the first fluid pressure line explosion-proof valve 12 and the second fluid pressure line explosion-proof valve 14 is towards three position four-way directional control valve 16
Direction, hydraulic cylinder 13 is connected with the second hydraulic fluid port 9 of the first fluid pressure line explosion-proof valve 12 and the second fluid pressure line explosion-proof valve 14,
Check valve 15 is mounted in the oil return line of three position four-way directional control valve 16.The operation principle of the hydraulic system is as follows:
1, hydraulic cylinder piston right lateral
The electromagnet 1DT of three position four-way directional control valve 16 obtains electric, electromagnet 2DT dead electricity, and pressure oil is through three position four-way directional control valve 16,
One fluid pressure line explosion-proof valve 12 enters the rodless cavity of hydraulic cylinder 13, pushes piston to move right, the liquid of the rod chamber of hydraulic cylinder 13
Pressure oil returns to fuel tank through the second fluid pressure line explosion-proof valve 14, three position four-way directional control valve 16, check valve 15.Such as the first hydraulic tube at this time
Fluid pressure line explosion or hydraulic cylinder 13 rodless cavity of the road explosion-proof valve 12 with 13 centre of hydraulic cylinder leak, and the first fluid pressure line is explosion-proof
The hydraulic fluid flow rate of first the 1 to the second hydraulic fluid port of hydraulic fluid port 9 of valve 12 can sharply increase, when the flow resistance by valve port is more than spring
When power, the first fluid pressure line explosion-proof valve 12 immediately closes off, and prevents the hydraulic fluid leak in hydraulic system.If the second fluid pressure line
Fluid pressure line explosion or hydraulic cylinder 13 rod chamber of the explosion-proof valve 14 with 13 centre of hydraulic cylinder leak, and check valve 15 prevents hydraulic pressure system
Oil return leakage in system.
2, hydraulic cylinder piston left lateral
The electromagnet 2DT of three position four-way directional control valve 16 obtains electric, electromagnet 1DT dead electricity, and pressure oil is through three position four-way directional control valve 16,
Two fluid pressure line explosion-proof valves 14 enter the rod chamber of hydraulic cylinder 13, push piston to be moved to the left, the liquid of the rodless cavity of hydraulic cylinder 13
Pressure oil returns to fuel tank through the first fluid pressure line explosion-proof valve 12, three position four-way directional control valve 16, check valve 15, and such as during this time second
Fluid pressure line explosion or hydraulic cylinder 13 rod chamber of the fluid pressure line explosion-proof valve 14 with 13 centre of hydraulic cylinder leak, the second hydraulic tube
The hydraulic fluid flow rate of first the 1 to the second hydraulic fluid port of hydraulic fluid port 9 of road explosion-proof valve 14 can sharply increase, when the flow resistance by valve port is super
When crossing spring force, the second fluid pressure line explosion-proof valve 14 can immediately close off, and prevent the hydraulic fluid leak in hydraulic system.Such as at this
When the first fluid pressure line explosion-proof valve 12 among hydraulic cylinder 13 fluid pressure line explosion or 13 rodless cavity of hydraulic cylinder leak, it is single
The oil return leakage in hydraulic system is prevented to valve 15.
3, hydraulic cylinder piston is awaited orders
The electromagnet 1DT dead electricity of three position four-way directional control valve 16, electromagnet 2DT dead electricity are extra in fluid pressure line and hydraulic cylinder 13
Hydraulic oil flows back to fuel tank by check valve 13, and the hydraulic oil of oil return system is lockked by check valve 13.
Claims (5)
1. a kind of fluid pressure line explosion-proof valve, characterized in that composition includes valve body（2）, valve pocket（6）, spool（10）And spring
（4）, the valve body（2）Internal valve opening（5）Both ends be respectively the first hydraulic fluid port（1）With the second hydraulic fluid port（9）, the valve pocket（6）Gu
It is scheduled on valve opening（5）Middle part, in valve pocket（6）Be internally provided with connection valve pocket（6）The assignment hole of both sides oil pocket（7）, the spool
（10）Middle part pine be sleeved on valve pocket（6）Centre bore in, spool（10）With the first hydraulic fluid port（1）Corresponding one end is equipped with and valve pocket
（6）On assignment hole（7）Corresponding oil baffle（3）, with the second hydraulic fluid port（9）Corresponding one end is equipped with adjusting nut（8）, institute
State spring（4）It is sleeved on spool（10）On, spring（4）One end withstand on oil baffle（3）On, the other end withstands on valve pocket（6）Center
On halfpace on the inner wall of hole.
2. a kind of fluid pressure line explosion-proof valve according to claim 1, characterized in that the valve pocket（6）Interior assignment hole（7）
It is arranged multiple, they are around valve pocket（6）Centre bore be uniformly distributed.
3. a kind of fluid pressure line explosion-proof valve according to claim 1 or 2, characterized in that the spool（10）With the second oil
Mouthful（9）Corresponding one end is additionally provided with fastening nut（11）, the fastening nut（11）Abut against adjusting nut（8）On.
4. a kind of fluid pressure line explosion-proof valve according to claim 3, characterized in that the valve pocket（6）Interior multiple flows
Hole（7）It is circular hole, each assignment hole（7）Close to oil baffle（3）One end and valve pocket（6）Centre bore converge.
5. a kind of fluid pressure line explosion-proof valve according to claim 4, characterized in that the valve pocket（6）With valve opening（5）It is interior
Pass through screw-thread fit between wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791560.1A CN108708888A (en) | 2018-07-18 | 2018-07-18 | Fluid pressure line explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791560.1A CN108708888A (en) | 2018-07-18 | 2018-07-18 | Fluid pressure line explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108708888A true CN108708888A (en) | 2018-10-26 |
Family
ID=63875079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810791560.1A Withdrawn CN108708888A (en) | 2018-07-18 | 2018-07-18 | Fluid pressure line explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108708888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251012A (en) * | 2021-06-04 | 2021-08-13 | 萨驰智能装备股份有限公司 | Explosion-proof hydraulic system and tire vulcanizer |
| CN115367628A (en) * | 2021-12-03 | 2022-11-22 | 湘潭市恒欣实业有限公司 | Novel mining monorail crane and control method thereof |
-
2018
- 2018-07-18 CN CN201810791560.1A patent/CN108708888A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251012A (en) * | 2021-06-04 | 2021-08-13 | 萨驰智能装备股份有限公司 | Explosion-proof hydraulic system and tire vulcanizer |
| CN115367628A (en) * | 2021-12-03 | 2022-11-22 | 湘潭市恒欣实业有限公司 | Novel mining monorail crane and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181026 |
|
| WW01 | Invention patent application withdrawn after publication |