CN101832846A - Workbench for detecting air tightness of air valve - Google Patents
Workbench for detecting air tightness of air valve Download PDFInfo
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- CN101832846A CN101832846A CN201010113382A CN201010113382A CN101832846A CN 101832846 A CN101832846 A CN 101832846A CN 201010113382 A CN201010113382 A CN 201010113382A CN 201010113382 A CN201010113382 A CN 201010113382A CN 101832846 A CN101832846 A CN 101832846A
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- air valve
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Abstract
The invention provides a workbench for detecting the air tightness of an air valve, belongs to the technical field of quality detection, and solves the problems that the conventional method for detecting the air tightness of the air valve has low detection efficiency and low accuracy. The workbench for detecting the air tightness of the air valve comprises a table top, wherein the table top is provided with an air inlet and a barrel-shaped supporting body; the air inlet is positioned in the barrel-shaped supporting body; the supporting body is hermetically contacted with the table top; the detected air valve can be arranged on the supporting body; and the table top is also provided with a pressing component which is used for pressing the detected air valve and making the detected air valve and the supporting body sealed. The workbench for detecting the air tightness of the air valve is used for testing the air tightness of the air valve, and has the advantages of high detection efficiency and accurate detection result; and kerosene is not used during detection, so the cost is saved, and the detected air valve is clean and beautiful.
Description
Technical field
The invention belongs to technical field of quality detection, relate to a kind of air-tightness detection device of compressor valve, particularly a kind of worktable that is used for the air tightness of air valve detection.
Background technology
The impermeability of air valve has material impact to compressor air-discharging amount, volume specific energy, inter-stage ratio of compression and delivery temperature.In the compressor air-discharging process, if air tightness of air valve is relatively poor, gas reduces air capacity outside gas admittance valve is leaked to compressor, and energy consumption increases, and increases the corrosion of valve block and sealing surface of seat.Expand and intake process in, if air tightness of air valve is relatively poor, gas by the discharge chamber cylinder that bleeds, not only makes air capacity reduce through vent valve, energy consumption increases, and also causes the increase of gas in the jar temperature, makes air valve surface carbon deposit, the minimizing of gas flow area.Thereby the impermeability of air valve to detect be a whether qualified most important procedure of check product.
Detect the sealing of air valve in the prior art mostly by kerosene leak test method, kerosene is poured in the gas channel of lift limiter, observe kerosene and whether produce continuous water clock, whether qualified to judge air tightness of air valve.The weak point of this method mainly contain following some: 1, adopt the kerosene leak test, waste kerosene; 2, accuracy in detection is not high, judges that with operator's experience whether it is qualified, is easy to generate erroneous judgement entirely; 3, the kerosene cleaning that detects in the air valve of back bothers, and it is attractive in appearance to influence product; 4, operator's labour intensity is big, detection efficiency is low.
Detecting impermeability by air pressure is a kind of detection method of habitually practising, but because the throughput of compressor valve is big, sealing property for pick-up unit is had relatively high expectations, the anchor clamps that do not have special-purpose air tightness of air valve to detect in the prior art, the method that causes utilizing draught head to detect air tightness of air valve is difficult to carry out.
Summary of the invention
The objective of the invention is to have the problems referred to above at existing technology, the worktable that a kind of air tightness of air valve detects has been proposed, by being provided with air intake opening, the air valve sealing clamping on worktable, is inflated in air valve to detect the impermeability of air valve by air intake opening in the worktable bottom.
Purpose of the present invention can realize by following technical proposal: the worktable that a kind of air tightness of air valve detects, comprise a table top, it is characterized in that, described table top is provided with air intake opening and tubular supporter, described air intake opening is arranged in described tubular supporter, described supporter contacts with the table top sealing, tested air valve can be positioned on the above-mentioned supporter, also be provided with on the described table top one be used to compress tested air valve and make tested air valve and described supporter between keep holding down assembly of sealing.
The tubular supporter is positioned on the table top and with the table top sealing and contacts, air intake opening is arranged on the table top equally and is arranged in supporter, when tested air valve is positioned on the supporter, by holding down assembly tested air valve is pressed on the supporter and forms sealing with supporter, under the effect that holds down assembly, keep sealing between supporter and the table top, thereby formation one air chamber between supporter and the tested air valve, air intake opening communicates with air chamber, during detection, by air intake opening after the gas interacvity air-filling makes it to reach the certain pressure value, stop inflation, behind certain hour, air pressure in the test gas chamber again, by pressure differential size before and after judging in the air chamber in allowed limits whether, thereby whether the impermeability of judging air valve is qualified.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described table top is provided with the annular groove that several radiuses do not wait, and described support physical efficiency is positioned in one of them annular groove and with table top and forms sealing.
Supporter is positioned in the annular groove, both can limit the supporter radial position, can strengthen the sealing between supporter and the table top again, air valve at various outer diameter, should adopt the supporter of various outer diameter during detection, thereby the supporter of the corresponding various outer diameters of a plurality of this annular grooves is set, each annular groove distributes with one heart and air intake opening is positioned at the circle centre position of annular groove.
In the worktable that above-mentioned a kind of air tightness of air valve detects, be provided with O-ring seal one between described annular groove and the supporter.When detecting impermeability, holding down assembly applies a pressure to tested air valve, and supporter is pressed on the O-ring seal one, thereby makes the maintenance sealing between supporter and the table top.
In the worktable that above-mentioned a kind of air tightness of air valve detects, the inboard that described supporter is used to place tested air valve one end offers a ring groove, makes described supporter inner ring form an annular boss, and described tested air valve can be positioned on this annular boss.It is inner and be lower than the supporter end that annular boss is positioned at supporter, thereby tested air valve is when being positioned on the annular boss, and slightly radius is greater than tested air valve radius in the supporter outer ring, and the radial position of tested air valve is defined.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described annular boss is provided with O-ring seal two.When tested air valve was positioned on the supporter, O-ring seal two was between annular boss and measured piece, and supporter and tested air valve sealing when guaranteeing to detect are good.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described holding down assembly comprises pressing plate and actuating unit, and described pressing plate can compress or unclamp tested air valve under the effect of actuating unit.When tested air valve is positioned on the supporter, drives pressing plate by actuating unit tested air valve is compressed, thereby make tested air valve and supporter sealing, supporter and table top sealing, after detection was finished, actuating unit drove pressing plate and rises, and unclamps tested air valve.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described actuating unit is four oil cylinders that are symmetrically distributed on the table top, and described pressing plate is connected on the piston rod of oil cylinder.By stretching of oil cylinder control piston bar, thereby the control pressing plate moves up and down, and reaches the purpose that compresses and unclamp tested air valve, and oil cylinder has certain surge capability, and snap-in force is steady.For guaranteeing that pressing plate is pressed on stressed being evenly distributed on the air valve, should remain level in the presser motion process, so the piston rod of each oil cylinder should keep being synchronized with the movement and each oil cylinder is symmetrically distributed with table top on.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described pressing plate is cruciform and the pressing plate center is provided with a through hole, and the piston rod of described oil cylinder is connected with the end of cruciform pressing plate respectively.When pressing plate was depressed, the bolt of tested air valve stretched out in through hole, and pressing plate then is pressed on the valve seat of tested air valve.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described pressing plate contacts one side and is fixed with backing plate with tested air valve.Damage air valve on the air valve for preventing that pressing plate is pressed on, one backing plate is set, utilize the shock-absorbing capacity of backing plate, air valve is played the certain protection effect at the surface of contact of pressing plate and air valve.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described oil cylinder is arranged at the table top lower end, and described piston rod spreads from the table and is connected with pressing plate.Oil cylinder is arranged at and helps the attractive in appearance of product under the table top.
As another kind of scheme, in the worktable that above-mentioned a kind of air tightness of air valve detects, described holding down assembly to being symmetrically distributed in the guide pole and the pressing plate that is set in the guide pole on the table top, described pressing plate drives it by an actuating unit and endwisely slips along guide pole.
In the worktable that above-mentioned a kind of air tightness of air valve detects, described actuating unit is a cylinder, and described pressing plate is connected on the piston rod of cylinder.
Compared with prior art, the worktable that this air tightness of air valve detects is used to measure the impermeability of air valve, detects and does not use kerosene, saves cost, and the air valve cleaning after the detection is attractive in appearance, and has the detection efficiency height, and testing result is advantage accurately.
Description of drawings
Fig. 1 is the structural representation of the worktable of this air tightness of air valve detection.
Fig. 2 is the structural representation of supporter in the worktable that detects of this air tightness of air valve.
Fig. 3 is the structural representation of table top in the worktable that detects of this air tightness of air valve.
Fig. 4 is the structural representation of the worktable center platen of this air tightness of air valve detection.
Among the figure, 1, table top; 11, annular groove; 2, air intake opening; 3, supporter; 31, annular boss; 32, O-ring seal one; 33, O-ring seal two; 34, air chamber; 4, tested air valve; 41, bolt; 42, valve seat; 5, oil cylinder; 51, piston rod; 6, pressing plate; 7, backing plate.
Embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Shown in Fig. 1～4, the worktable that this air tightness of air valve detects is installed on the air-leakage detector, comprise a table top 1, on table top 1, be provided with air intake opening 2 and tubular supporter 3, air intake opening 2 is arranged in tubular supporter 3, and air intake opening 2 is concentric with supporter 3, and table top 1 is provided with the annular groove 11 that is used to place supporter 3 that several radiuses do not wait, and each annular groove 11 distributes with one heart and the center of circle is positioned at air intake opening 2 places.Supporter 3 one ends can be positioned in one of them annular groove 11, and the inboard of the other end offers a ring groove, make the supporter 3 inboard annular boss 31 that form, and tested air valve 4 can be positioned on this annular boss 31.Also being provided with one on the table top 1 is used to compress tested air valve 4 and makes keep holding down assembly of sealing between tested air valve 4 and the described supporter 3.
Supporter 3 is positioned in the annular groove 11, and is provided with O-ring seal 1 between supporter 3 and annular groove 11, both can limit supporter 3 radial positions, can strengthen the sealing between supporter 3 and the table top 1 again.Tested air valve 4 is positioned in the supporter 3 and is supported on the annular boss 31 simultaneously, and tested air valve 4 radial positions are defined, and is provided with O-ring seal 2 33 between supporter 3 and annular boss 31, is used to strengthen the sealing of supporter 3 and tested air valve 4.At the air valve of various outer diameter, should adopt the supporter 3 of various outer diameter during detection, thereby the supporter 3 of a plurality of these annular groove 11 corresponding various outer diameters is set, each annular groove 11 concentric distribution and air intake opening 2 are positioned at the circle centre position of annular groove 11.
Supporter 3 seals with table top 1 and tested air valve 4 respectively, thereby in supporter 3, form an air chamber 34, the air intake opening 2 that is arranged on the table top 1 is connected with air chamber 34, and when tested air valve 4 was positioned on the supporter 3, air chamber 34 communicated with the gas channel of the outgassing direction of tested air valve 4.When detecting the impermeability of tested air valve 4, holding down assembly compresses tested air valve 4, and tested air valve 4 and supporter 3, supporter 3 are sealed mutually with table top 1, by air intake opening 2 in air chamber 34, inflate make it to reach the certain pressure value after, stop inflation, after keeping certain hour, test gas chamber 34 internal pressures, and compare with the force value before the test, if pressure differential in allowed limits, then tested air valve 4 impermeability are qualified, and greater than specialized range, then tested air valve 4 impermeability are defective as if the front and back pressure differential.
In the worktable of this air tightness of air valve test, it holds down assembly and comprises actuating unit and the pressing plate 6 that is connected on the actuating unit.Pressing plate 6 is cruciform, this actuating unit is four and is symmetrically distributed in oil cylinder 5 on the table top 1, the piston rod 51 of each oil cylinder 5 is synchronized with the movement and is connected in four ends of cruciform pressing plate 6 respectively, and pressing plate 6 centers are provided with the through hole that the bolt 41 for tested air valve 4 passes.For the purpose of attractive in appearance, oil cylinder 5 is arranged at table top 1 lower end, and the piston rod 51 of oil cylinder 5 spreads from the table 1 and enclose with pressing plate 6 and to connect.When tested air valve 4 is positioned on the supporter 3, drive pressing plate 6 motions by actuating unit, when pressing plate 6 is depressed, the bolt 41 of tested air valve 4 stretches out in the through hole of pressing plate 6, the valve seat 42 of 6 pairs of tested air valves 4 of pressing plate applies a pressure, thereby compress tested air valve 4, make tested air valve 4 and supporter 3 sealings, supporter 3 and table top 1 sealing; After detection was finished, actuating unit drove pressing plate 6 and rises, and unclamps tested air valve 4, finishes detecting operation.It is damaged when preventing that pressing plate 6 from compressing tested air valve 4, contact an end at pressing plate 6 with tested air valve 4 and also be provided with a backing plate 7, when pressing plate 6 compresses tested air valve 4, utilize the shock-absorbing capacity of backing plate 7, tested air valve 4 is played the certain protection effect.
The worktable that this air tightness of air valve detects, the charge pressure size of air intake opening 2, inflationtime, the snap-in force that holds down assembly is big or small and compress the time, and the measurement of air chamber 34 internal pressure values and feedback etc. are by the PLC control system control of air-leakage detector.Thereby tested air valve 4 carries out impermeability when detecting, and only need configure correlation parameter, and tested air valve 4 is positioned on the supporter 3, can finish impermeability automatically and detect, and by the PLC system feedback, shows whether tested air valve 4 is qualified.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (10)
1. the worktable that detects of an air tightness of air valve, comprise a table top (1), it is characterized in that, described table top (1) is provided with air intake opening (2) and tubular supporter (3), described air intake opening (2) is arranged in described tubular supporter (3), described supporter (3) contacts with table top (1) sealing, tested air valve (4) can be positioned on the above-mentioned supporter (3), also be provided with on the described table top (1) one be used to compress tested air valve (4) and make tested air valve (4) and described supporter (3) between keep holding down assembly of sealing.
2. the worktable that a kind of air tightness of air valve according to claim 1 detects, it is characterized in that, described table top (1) is provided with the annular groove (11) that several radiuses do not wait, and described supporter (3) can be positioned in one of them annular groove (11) and with table top (1) and form sealing.
3. the worktable that a kind of air tightness of air valve according to claim 1 and 2 detects, it is characterized in that, the inboard that described supporter (3) is used to place tested air valve (4) one ends offers a ring groove, make described supporter (3) inner ring form an annular boss (31), described tested air valve (4) can be positioned on this annular boss (31).
4. the worktable that a kind of air tightness of air valve according to claim 3 detects is characterized in that described annular boss (31) is provided with O-ring seal two (33).
5. the worktable that a kind of air tightness of air valve according to claim 1 detects is characterized in that described holding down assembly comprises pressing plate (6) and actuating unit, and described pressing plate (6) can compress or unclamp tested air valve (4) under the effect of actuating unit.
6. the worktable that a kind of air tightness of air valve according to claim 5 detects is characterized in that described actuating unit is four oil cylinders (5) that are symmetrically distributed on the table top (1), and described pressing plate (6) is connected on the piston rod (51) of oil cylinder (5).
7. the worktable that a kind of air tightness of air valve according to claim 6 detects, it is characterized in that, described pressing plate (6) is cruciform and pressing plate (6) center is provided with a through hole, and the piston rod (51) of described oil cylinder (5) is connected with the end of cruciform pressing plate (6) respectively.
8. according to the worktable of claim 6 or 7 described a kind of air tightness of air valve detections, it is characterized in that described oil cylinder (5) is arranged at table top (1) lower end, described piston rod (51) spreads from the table (1) and is connected with pressing plate (6).
9. the worktable that a kind of air tightness of air valve according to claim 1 detects, it is characterized in that, described holding down assembly to being symmetrically distributed in the guide pole on the table top (1) and being set in the interior pressing plate (6) of guide pole, described pressing plate (6) drives it by an actuating unit and endwisely slips along guide pole.
10. according to the worktable of claim 5 or 9 described a kind of air tightness of air valve detections, it is characterized in that described actuating unit is a cylinder, described pressing plate (6) is connected on the piston rod of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101133820A CN101832846B (en) | 2010-01-26 | 2010-01-26 | Workbench for detecting air tightness of air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101133820A CN101832846B (en) | 2010-01-26 | 2010-01-26 | Workbench for detecting air tightness of air valve |
Publications (2)
| Publication Number | Publication Date |
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| CN101832846A true CN101832846A (en) | 2010-09-15 |
| CN101832846B CN101832846B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101133820A Active CN101832846B (en) | 2010-01-26 | 2010-01-26 | Workbench for detecting air tightness of air valve |
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| Country | Link |
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| CN (1) | CN101832846B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998067A (en) * | 2012-12-14 | 2013-03-27 | 中粮包装（昆山）有限公司 | Device for detecting leakage of crimped edge of steel bucket |
| CN103439095A (en) * | 2013-08-07 | 2013-12-11 | 苏州凯虹高分子科技有限公司 | Method and device for automatically testing valve pressure of cell safety valve in open state and in closed state |
| CN103471790A (en) * | 2013-09-11 | 2013-12-25 | 浙江华龙巨水科技股份有限公司 | High-precision water-free micro-leakage detection device |
| CN106198238A (en) * | 2016-09-06 | 2016-12-07 | 珠海银隆新能源有限公司 | Burst disk pressure resistant testing device |
| CN110987311A (en) * | 2019-11-26 | 2020-04-10 | 台州科技职业学院 | Air tightness testing device suitable for stop valve |
| CN114061864A (en) * | 2021-10-20 | 2022-02-18 | 沈阳恒曼压缩机制造有限公司 | Sealing test device by air pressure drop method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4520655A (en) * | 1981-12-18 | 1985-06-04 | Gordon E. Eldridge | Valve testing apparatus |
| CN2210390Y (en) * | 1994-09-21 | 1995-10-18 | 孙广聚 | Valve type apparatus for testing pressure |
| CN100565157C (en) * | 2008-05-07 | 2009-12-02 | 常州市科信燃气设备有限公司 | Disc valve detection device |
| CN201637555U (en) * | 2010-01-26 | 2010-11-17 | 台州环天机械有限公司 | Working table for detecting air tightness of air valve |
-
2010
- 2010-01-26 CN CN2010101133820A patent/CN101832846B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998067A (en) * | 2012-12-14 | 2013-03-27 | 中粮包装（昆山）有限公司 | Device for detecting leakage of crimped edge of steel bucket |
| CN103439095A (en) * | 2013-08-07 | 2013-12-11 | 苏州凯虹高分子科技有限公司 | Method and device for automatically testing valve pressure of cell safety valve in open state and in closed state |
| CN103471790A (en) * | 2013-09-11 | 2013-12-25 | 浙江华龙巨水科技股份有限公司 | High-precision water-free micro-leakage detection device |
| CN103471790B (en) * | 2013-09-11 | 2016-04-20 | 浙江华龙巨水科技股份有限公司 | High-precision water-free micro-leakage detection device |
| CN106198238A (en) * | 2016-09-06 | 2016-12-07 | 珠海银隆新能源有限公司 | Burst disk pressure resistant testing device |
| CN110987311A (en) * | 2019-11-26 | 2020-04-10 | 台州科技职业学院 | Air tightness testing device suitable for stop valve |
| CN114061864A (en) * | 2021-10-20 | 2022-02-18 | 沈阳恒曼压缩机制造有限公司 | Sealing test device by air pressure drop method |
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| Publication number | Publication date |
|---|---|
| CN101832846B (en) | 2012-05-09 |
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Address after: Taizhou City, Zhejiang province 317608 Yuhuan City Economic Development Zone Yuhuan Xuanmen industrial city Patentee after: Taizhou ring world Polytron Technologies Inc Address before: 317600 City Road No. 518, Yucheng Street office, Yuhuan County, Zhejiang Patentee before: Taizhou Huantian Machinery Co., Ltd. |