CN103968118A - Differential pressure type automatic snifting valve applied to air cushion workbench - Google Patents
Differential pressure type automatic snifting valve applied to air cushion workbench Download PDFInfo
- Publication number
- CN103968118A CN103968118A CN201310047500.6A CN201310047500A CN103968118A CN 103968118 A CN103968118 A CN 103968118A CN 201310047500 A CN201310047500 A CN 201310047500A CN 103968118 A CN103968118 A CN 103968118A
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- China
- Prior art keywords
- snifting valve
- air
- valve
- automatic snifting
- automatic
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Classifications
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Abstract
The invention discloses a differential pressure type automatic snifting valve applied to an air cushion workbench. The differential pressure type automatic snifting valve comprises the workbench, a snifting hole formed in the top of the workbench, air inlet channels supplying the air to an automatic snifting valve body, a valve core, the automatic snifting valve body, an air guide channel formed in the automatic snifting valve body, and atmospheric pressure balance air channels formed in the automatic snifting valve body and the workbench. The differential pressure type automatic snifting valve adopts air sources (an air pump or compressed air) with different pressures and can be widely applied to places needing air cushion devices; since the air cushion workbench of the differential pressure type automatic snifting valve only forms an air cushion below a loaded item, energy is saved efficiently, and the differential pressure type automatic snifting valve further has the advantages that structure is simple, cost is low and assembling and maintaining are facilitated.
Description
Technical field
The present invention relates to the automatic snifting valve of pressure difference dynamic formula, specifically relate to a kind of automatic snifting valve of pressure difference dynamic formula that is applied to air cushion worktable.
Background technique
The basic principle of the snifting valve on air cushion worktable is jet by the pore on table top, produces one deck air cushion between table top and carrying object, plays the effect that reduces frictional force, makes bearing material physical efficiency easily on table top, move or rotate.Current air cushion worktable mostly adopts spring steel ball formula snifting valve, the principle of spring steel ball formula snifting valve is: in the time that carrying object moves on pore, bearing material presses down the steel ball in pore, and unlatching pore makes to form air cushion between bearing material and table top and reduces frictional force; In the time that carrying object leaves pore top, steel ball is closed pore by spring return function, and air cushion is disappeared.
The major defect of conventional spring steel ball formula snifting valve is: its component are many, complex structure, and the air cushion worktable of formation is thick and heavy, and installation and processing technology require high, and manufacture cost is higher.Owing to using steel ball and spring members, air valve need to take certain space, the thickness of conventional spring steel ball formula snifting valve air cushion worktable generally all more than 30 millimeters, causes the volume of air cushion worktable and quality all very large, to install and the requirement of processing also very high; The steel ball tightness of this spring steel ball formula snifting valve air cushion worktable is unstable, easily in the time of stomatal closure, occurs the phenomenon of local gas leakage; Air cushion in the course of the work steel ball exists and directly contacts with carrying object, and steel ball easily comes off or damages, and causes air valve damage; If arbitrary air valve breaks down, will cause pore to leak gas in a large number, have a strong impact on air cushion and normally work; The labyrinth of this spring steel ball formula snifting valve and higher rate of fault make maintenance and all inconveniences of maintenance in its later stage; This spring steel ball formula snifting valve air cushion worktable can only use large flow, low-pressure air pump air feed, and low-pressure air pump noise is large, gas temperature is high, air pump rate of fault is high, returns working environment and brings impact.
Summary of the invention
Technical problem to be solved by this invention is to provide one can the efficient economizing energy, and also have source of the gas gas pressure wide accommodation, and simple in structure, cost is low, and installation and maintenance is easy to automatic snifting valve.
The present invention is achieved through the following technical solutions: a kind of automatic snifting valve of pressure difference dynamic formula that is applied to air cushion worktable, comprise worktable, and be arranged on the fumarole of table surface, and be automatic snifting valve air feed intake duct, and snifting valve spool and automatically snifting valve valve body automatically, and be arranged on the airtube on automatic snifting valve valve body, and be arranged on the atmospheric pressure air pressure balance duct on automatic snifting valve valve body and worktable, described airtube is connected and communicates with intake duct, the normal pressure end of described automatic snifting valve spool is connected and communicates with ambient atmosphere, described automatic snifting valve valve core housing is contained in the large of automatic snifting valve valve body, in small piston chamber.
The invention has the beneficial effects as follows:
1. the automatic snifting valve of this pressure difference dynamic formula has replaced steel ball and the spring of traditional air cushion worktable, the automatic snifting valve of this pressure difference dynamic formula is only assembled by spool simple in structure, volume is small and exquisite and valve body, and need not consider spring assembling and the steel ball tightness problem of traditional air cushion worktable, and worktable thin thickness, volume are little and lightweight;
2. the automatic snifting valve volume of this pressure difference dynamic formula is little, compare with 30 millimeters of above thickness of traditional air cushion worktable, the thickness of the air cushion worktable based on the automatic snifting valve of this pressure difference dynamic formula can be controlled in 15 millimeters, thereby the volume and weight of air cushion worktable can significantly be reduced, applied range;
3. whether the automatic snifting valve of this pressure difference dynamic formula can there is carrying object according to pore top, realize automatically cut-offfing of snifting valve, and the air cushion worktable based on the automatic snifting valve of this pressure difference dynamic formula only forms air cushion below carrying object, has saved efficiently the energy;
4. the automatic snifting valve of this pressure difference dynamic formula goes for different operating air pressures.Because the automatic snifting valve of this pressure difference dynamic formula is arranged on worktable inside, can bear higher pressure.By adjusting the cross-sectional sizes of intake duct of automatic snifting valve valve body, this kind of automatic snifting valve of pressure difference dynamic formula not only can use large flow, low-pressure air pump air feed, and can use the pressurized air air feed of high pressure, low discharge; Automation equipment is all used pressurized air mostly, uses after the automatic snifting valve of pressure difference dynamic formula of this invention, need not increase low pressure air pump again.
5. when the automatic snifting valve of this pressure difference dynamic formula uses pressurized air to make source of the gas, first, control compressed-air actuated start and stop by installing air-operated solenoid valve additional, can select whether to open air cushion according to bearing material state more easily.Secondly,, by air vent valve adjustable pressure size, can provide desirable air cushion effect for different carrying objects.Finally, the air cushion worktable based on the automatic snifting valve of this pressure difference dynamic formula can with equipment pneumatic element common compression air-source, solved low pressure air pump noise and problem of temperature rise;
6. the low cost of manufacture of the automatic snifting valve of this pressure difference dynamic formula.Because the automatic snifting valve of this pressure difference dynamic formula is simple in structure, spool and the valve body of snifting valve are easy to process automatically, and can select as required different materials, and for example metal or plastics etc., reduced manufacture cost from processing technology and material;
7. the automatic snifting valve of this pressure difference dynamic formula, can be convenient to use different materials and make, and therefore can adapt to different gas and make source of the gas, meets special occasions such as there being corrosion and uses.
8. the installation and maintenance of the automatic snifting valve of this pressure difference dynamic formula is convenient.Automatically the spool of snifting valve and valve body assembling are very simple, can significantly improve installation efficiency.Owing to there is no spring mechanism, avoid steel ball to contact with the direct of carrying object, thereby thoroughly eliminated the gentle sharp-tongued bad problem of tightness of steel ball.Air cushion worktable rate of fault is significantly reduced, after installation, need hardly to safeguard.
Brief description of the drawings
For ease of explanation, the present invention is described in detail by following specific embodiment and accompanying drawing.
Fig. 1 is that the automatic snifting valve of pressure difference dynamic formula of the present invention is in closed condition structure principle chart;
Fig. 2 is that the automatic snifting valve of pressure difference dynamic formula of the present invention is in opening state structure principle chart;
Embodiment
Shown in Fig. 1, a kind of automatic snifting valve of pressure difference dynamic formula that is applied to air cushion worktable of the present invention, comprise worktable 3, and be arranged on the fumarole 6 of worktable 3 table tops, and be automatic snifting valve air feed intake duct 4, and snifting valve spool 1 and automatically snifting valve valve body 2 automatically, and be arranged on the airtube 5 on automatic snifting valve valve body 2, and be arranged on the atmospheric pressure air pressure balance duct 7 on automatic snifting valve valve body 2 and worktable 3, described airtube 5 is connected and communicates with intake duct 4, the normal pressure end of described automatic snifting valve spool 1 is connected and communicates with ambient atmosphere, described automatic snifting valve spool 1 is sleeved on the large of automatic snifting valve valve body 2, inside, small piston chamber.
Its working principle is: gas enters automatic snifting valve by intake duct (4).In the time there is not carrying object in fumarole (6) top, automatically the large piston upper end of snifting valve spool (1) communicates with atmosphere, automatically the automatic mineralization pressure of small piston end of snifting valve spool (1) is poor, air pressure promotes automatic snifting valve spool (1) from small piston end and moves upward, close airtube (5) and fumarole (6), realize automatically shutting down of air-flow.Now pore is in closed condition.Because automatically having matching gap between snifting valve spool (1) and automatic snifting valve valve body (2), therefore still have trace gas stream to overflow from fumarole (6) afterwards by airtube (5).Now the air chamber between snifting valve spool (1) and automatic snifting valve valve body (2) is connected and communicates with ambient atmosphere by atmospheric equilibrium air flue (7) automatically.
In the time there is carrying object in fumarole (6) top, because intake duct (4) is connected with fumarole (6), so the air pressure convergence of the large and small piston end both sides of snifting valve spool (1) is identical automatically.Because the large piston end of snifting valve spool (1) and the area of small piston end there are differences automatically, automatically large piston end and the automatic mineralization pressure of small piston end of snifting valve spool (1) are poor, air pressure promotes automatic snifting valve spool (1) from large piston end and moves downward, open airtube (5) and fumarole (6), realize the automatic unlatching of air-flow.Now pore is in opening state.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. one kind is applied to the automatic snifting valve of pressure difference dynamic formula of air cushion worktable, it is characterized in that: the automatic snifting valve of this pressure difference dynamic formula is in two kinds of situations that whether have carrying object above fumarole, utilize air pressure differential principle mineralization pressure between large piston, small piston and the normal pressure end of automatic snifting valve spool poor, drive automatic snifting valve spool to move up and down, realize opening and closing automatically of snifting valve.
2. a kind of automatic snifting valve of pressure difference dynamic formula that is applied to air cushion worktable according to claim 1, it is characterized in that: comprise worktable, and be arranged on the fumarole of table surface, and be automatic snifting valve air feed intake duct, and snifting valve spool and automatically snifting valve valve body automatically, and be arranged on the airtube on automatic snifting valve valve body, and be arranged on the atmospheric pressure air pressure balance duct on automatic snifting valve valve body and worktable, described airtube is connected and communicates with intake duct, the normal pressure end of described automatic snifting valve spool is connected and communicates with ambient atmosphere, described automatic snifting valve valve core housing is contained in the big or small piston cavity of automatic snifting valve valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047500.6A CN103968118B (en) | 2013-02-06 | 2013-02-06 | A kind of automatic snifting valve of pressure differential dynamic formula applied to air cushion workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047500.6A CN103968118B (en) | 2013-02-06 | 2013-02-06 | A kind of automatic snifting valve of pressure differential dynamic formula applied to air cushion workbench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968118A true CN103968118A (en) | 2014-08-06 |
| CN103968118B CN103968118B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310047500.6A Active CN103968118B (en) | 2013-02-06 | 2013-02-06 | A kind of automatic snifting valve of pressure differential dynamic formula applied to air cushion workbench |
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| CN (1) | CN103968118B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142861A (en) * | 2019-05-30 | 2019-08-20 | 安徽智汇和专利技术开发有限公司 | Ceramic mold |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235098A (en) * | 1963-11-01 | 1966-02-15 | Clark Equipment Co | Snap-in ball check valve |
| CN2518682Y (en) * | 2002-02-09 | 2002-10-30 | 贾永康 | Paper cutting machine with vertical motion blade |
| CN1778528A (en) * | 2004-11-24 | 2006-05-31 | 宋文清 | Air-cushioned operation platform |
| CN101078447A (en) * | 2006-05-26 | 2007-11-28 | 宝山钢铁股份有限公司 | Differential pressure self-closing valve |
| RU2349438C2 (en) * | 2007-03-26 | 2009-03-20 | Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) | Controller for hydrostatic bearings |
| EP2210833A2 (en) * | 2009-01-27 | 2010-07-28 | Knut Lange | Device for conveying objects on an aircushion |
| CN203230929U (en) * | 2013-02-06 | 2013-10-09 | 熊浩名 | Pressure differential type automatic snifting valve applied to air cushion work bench |
-
2013
- 2013-02-06 CN CN201310047500.6A patent/CN103968118B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235098A (en) * | 1963-11-01 | 1966-02-15 | Clark Equipment Co | Snap-in ball check valve |
| CN2518682Y (en) * | 2002-02-09 | 2002-10-30 | 贾永康 | Paper cutting machine with vertical motion blade |
| CN1778528A (en) * | 2004-11-24 | 2006-05-31 | 宋文清 | Air-cushioned operation platform |
| CN101078447A (en) * | 2006-05-26 | 2007-11-28 | 宝山钢铁股份有限公司 | Differential pressure self-closing valve |
| RU2349438C2 (en) * | 2007-03-26 | 2009-03-20 | Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) | Controller for hydrostatic bearings |
| EP2210833A2 (en) * | 2009-01-27 | 2010-07-28 | Knut Lange | Device for conveying objects on an aircushion |
| EP2210833A3 (en) * | 2009-01-27 | 2011-03-16 | Knut Lange | Device for conveying objects on an aircushion |
| CN203230929U (en) * | 2013-02-06 | 2013-10-09 | 熊浩名 | Pressure differential type automatic snifting valve applied to air cushion work bench |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142861A (en) * | 2019-05-30 | 2019-08-20 | 安徽智汇和专利技术开发有限公司 | Ceramic mold |
| CN110142861B (en) * | 2019-05-30 | 2021-06-01 | 安徽智汇和科技服务有限公司 | Ceramic mould |
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| Publication number | Publication date |
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| CN103968118B (en) | 2017-08-01 |
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