CN104132715A - Reciprocating type pneumatic shifting reverser - Google Patents
Reciprocating type pneumatic shifting reverser Download PDFInfo
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- CN104132715A CN104132715A CN201410393242.1A CN201410393242A CN104132715A CN 104132715 A CN104132715 A CN 104132715A CN 201410393242 A CN201410393242 A CN 201410393242A CN 104132715 A CN104132715 A CN 104132715A
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Abstract
The invention relates to a reciprocating type pneumatic shifting reverser which comprises a water inlet nozzle, a movable component, a shell body, a water divider, an air cylinder and a pinger. The water inlet nozzle is fixedly arranged above the movable component, the movable component is arranged on two rails in the shell body in a sliding mode, a piston rod of the air cylinder is connected with the movable component, and the movable component is driven to do reciprocating linear motion on the two guide rails in the shell body through a sliding bearing. The movable component is provided with a left water dividing opening and a right water dividing opening, and when the movable component moves, an inlet of the left water dividing opening and an inlet of the right water dividing opening alternatively correspond to the water inlet nozzle, and an outlet of the left water dividing opening and an outlet of the right water dividing opening correspond to a left bucket and a right bucket of the water divider respectively. The pinger detects the reversing stroke time signal of the movable component and transmits the reversing stroke time signal into a control device. The reciprocating type pneumatic shifting reverser is flexible in action, moves linearly and axially in the reversing process, and is small in resistance, fast in action, and small in reversing time difference, a pipeline can relatively vibrate a little in the process of large-flow detection, relatively low noise is generated in the reversing process, the failure rate is small, and the reverser can be widely applied to liquid flow standard devices.
Description
Technical field
The present invention relates to a kind of liquid flow standard device, specifically a kind of reciprocal pneuamtic displacement commutator.
Background technology
The pneumatic commutator of moving type is the important composition equipment for liquid flow standard device, and liquid flow standard device is accuracy and repeatability for tracer liquid flow instrument.Wherein, can the acting body of commutator (be generally 30s) fast now within the calibrating time, will detect fully, accurately medium exchanges circulation from pipeline to standard measuring device between (or weighing container) and by-pass pipe, directly affect the accuracy of flow measurement result, thereby directly have influence on calibrating efficiency.At present conventional on domestic similar flow standard device have two kinds, open type commutator and an enclosed commutator.Wherein, pneumatic tipping bucket type commutator and oscillating nozzle formula commutator are the traditional structure forms of open type commutator.
As shown in Figure 1, in figure, 1 is water inlet pipe to the structure of traditional open type commutator, and 2 is nozzle, and 3 is dividing plate, and 4 is rotation axis, and 5 is movable part.Its principle of work is: liquid communication is crossed dividing plate 3 and pivoted and realize commutation function, in figure, can find, nozzle 2 and movable part 5 are all openings, in liquid flow standard device, because hydraulic fluid is worked at normal temperatures, do not have the impact of temperature.Adopt open type commutator, get back to pond at preproduction phase liquid from by-pass pipe; In the time of work, regulate working flow, liquid is entered weighing container from movable part 5.Therefrom can find, because commutator is opening, liquid leads to weighing container or by-pass pipe from nozzle 2 by movable part 5, downstream is opening, and downstream pressure is exactly atmospheric pressure, if when the large flow velocity of fluid flow is high and easily upwards splash, make pipeline produce large vibrations, and when commutation, noise is very large, and its result not only directly affects the accuracy of measurement result, and also the serviceable life to equipment and environmental pollution cause negative effect.
Summary of the invention
For prior art middle open type commutator make that pipeline vibrations are large, measurement result accuracy is poor, etc. weak point, the technical problem to be solved in the present invention is to provide one can make that medium a fluid stream stable spatters, measuring accuracy is high, device calibrating data reciprocal pneuamtic displacement more accurately commutator outward.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Reciprocal pneuamtic displacement commutator of the present invention, comprise: water inflow nozzle, movable part, housing, water trap, cylinder and signalling generator, wherein water inflow nozzle is fixed at the top of movable part, movable part is slidably mounted on the two-orbit of enclosure interior, the piston rod of cylinder is connected with movable part, drives movable part on the two guide rails in housing, to do linear reciprocating motion by sliding bearing; Movable part has bleeder, left and right, when movable part moves about the entrance of bleeder replace corresponding water inflow nozzle, the outlet of bleeder, left and right is the left and right bucket of corresponding water trap respectively; The commutation journey time signal of signalling generator detected activity parts also sends in control device.
Be provided with the block being synchronized with the movement with piston rod at the tail end of cylinder, be provided with photoimpact converter in a side of block, the photoimpact transducer signal that signalling generator collects is forwarded to computing machine processing again.
Described outside is provided with support, and the supporting leg of cylinder bottom is installed on this support,
Movable part is installed on two-orbit by sliding bearing.
Housing and water trap upper end are bolted to connection.
A corresponding measuring device of left and right bucket outlet of described water trap, a corresponding pond.The present invention has following beneficial effect and advantage:
1. the present invention moves lightly, and when commutation, straight line moves axially, and resistance is little, and action is fast, and commutating period is poor little, can make pipeline produce relatively little vibrations when large flow verification, produces relatively little noise when commutation.
2. reciprocal pneuamtic Yi of the present invention position commutator structure is simple, and technique is succinct, and failure rate is little, and fault judges well, maintenance maintenance convenience, and saving later maintenance expense, can be widely used in liquid flow standard device.
3. when the present invention installs, the fine adjustment of water-drop point, convenient and swift very clear, and its design feature has determined that medium a fluid stream is stable and do not understood outer spattering, safe and reliable.
4. it is poor that the present invention has shortened commutation journey time, can be less than 10ms (national verification code is to be less than 20ms), and measuring accuracy is improved, and device calibrating data are more accurate.
Brief description of the drawings
Fig. 1 is the structure of traditional open type commutator;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the left activation point schematic diagram of the movable part in the present invention;
Fig. 5 is the right activation point schematic diagram of the movable part in the present invention.
In figure, 10 is water inflow nozzle, and 11 is movable part, and 12 is housing, and 13 is cylinder, and 14 is water trap, and 15 is signalling generator, and 16 is sliding bearing.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
As shown in Figure 2,3, reciprocal pneuamtic displacement commutator of the present invention comprises: water inflow nozzle 10, movable part 11, housing 12, water trap 14, cylinder 13 and signalling generator 15, wherein water inflow nozzle 10 is fixed at the top of movable part 11, and movable part 11 is slidably mounted on the two-orbit of housing 12 inside by four sliding bearings 16; Housing 12 outsides are provided with support, and the supporting leg of cylinder 13 bottoms is installed on this support, and the piston rod of cylinder 13 is connected with movable part, drive movable part 11 on the two guide rails in housing 12, to do linear reciprocating motion by sliding bearing 16; Movable part 11 has bleeder, left and right, when movable part 11 moves about the entrance of bleeder replace corresponding water inflow nozzle 10, the outlet of bleeder, left and right is the left and right bucket of corresponding water trap 14 respectively; The commutation journey time signal of signalling generator 15 detected activity parts 11 also sends in control device.Housing 12 is bolted to connection with water trap 14 upper ends.A corresponding measuring device of left and right bucket outlet of water trap 14, a corresponding pond.
Be provided with the block being synchronized with the movement with piston rod at the tail end of cylinder 13, be provided with photoimpact converter in a side of block, the photoimpact transducer signal that signalling generator 15 collects is forwarded in control device again.
Principle of work of the present invention is:
Water inflow nozzle 10 is fixedly installed in the top of reciprocal pneuamtic displacement commutator of the present invention, and water trap 14 is fixedly installed in the top of volumetric standard and by-pass pipe.(in the time that liquid flows into volumetric standard, be the accuracy of calibrating flowmeter, flow into the just direct intake pool of by-pass pipe).Drive movable part 11 on the two guide rails in housing 12, to do the minimum linear reciprocating motion of friction force by sliding bearing 16 by cylinder 13, reach commutation order ground at short notice.In motion process, thereby movable part 11 moves in the left and right bucket that makes liquid enter respectively water trap 14, as shown in Figure 4,5 thereupon.The left bucket that parts the corresponding water trap in the mouth of a river on the left side of movable part, the right bucket that parts the corresponding water trap in the mouth of a river on the right side of movable part.
Liquid in water trap flows into respectively standard measuring device or by-pass pipe.Because water trap is connected on commutator and fixes with screw, state is steady, can not produce splash phenomena.The commutation journey time that movable part 11 reciprocating linears move is collected and in photoimpact converter, is forwarded to control system again by signalling generator, thereby it is poor accurately to calculate commutation journey time.Movable part 11 is held up by four bearings, light flexibly when commutation.
The present invention moves lightly, and when commutation, straight line moves axially, and resistance is little, and action is fast, and commutating period is poor little.When large flow verification, can make pipeline produce relatively little vibrations, when commutation, produce relatively little noise.
Claims (6)
1. a reciprocal pneuamtic displacement commutator, it is characterized in that comprising: water inflow nozzle, movable part, housing, water trap, cylinder and signalling generator, wherein water inflow nozzle is fixed at the top of movable part, movable part is slidably mounted on the two-orbit of enclosure interior, the piston rod of cylinder is connected with movable part, drives movable part on the two guide rails in housing, to do linear reciprocating motion by sliding bearing; Movable part has bleeder, left and right, when movable part moves about the entrance of bleeder replace corresponding water inflow nozzle, the outlet of bleeder, left and right is the left and right bucket of corresponding water trap respectively; The commutation journey time signal of signalling generator detected activity parts also sends in control device.
2. by reciprocal pneuamtic displacement commutator claimed in claim 1, it is characterized in that: be provided with the block being synchronized with the movement with piston rod at the tail end of cylinder, a side at block is provided with photoimpact converter, and the photoimpact transducer signal that signalling generator collects is forwarded to computing machine processing again.
3. by reciprocal pneuamtic displacement commutator claimed in claim 1, it is characterized in that: described outside is provided with support, the supporting leg of cylinder bottom is installed on this support,
4. by reciprocal pneuamtic displacement commutator claimed in claim 1, it is characterized in that: movable part is installed on two-orbit by sliding bearing.
5. by reciprocal pneuamtic displacement commutator claimed in claim 1, it is characterized in that: housing and water trap upper end are bolted to connection.
6. by reciprocal pneuamtic displacement commutator claimed in claim 1, it is characterized in that: a corresponding measuring device of left and right bucket outlet of described water trap, a corresponding pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393242.1A CN104132715A (en) | 2014-08-11 | 2014-08-11 | Reciprocating type pneumatic shifting reverser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393242.1A CN104132715A (en) | 2014-08-11 | 2014-08-11 | Reciprocating type pneumatic shifting reverser |
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| Publication Number | Publication Date |
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| CN104132715A true CN104132715A (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410393242.1A Pending CN104132715A (en) | 2014-08-11 | 2014-08-11 | Reciprocating type pneumatic shifting reverser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706081A (en) * | 2016-11-23 | 2017-05-24 | 辽宁屹霖科技发展有限公司 | Pull-rod swing nozzle reverser |
| CN107421607A (en) * | 2016-06-07 | 2017-12-01 | 西尼尔(南京)过程控制有限公司 | Fluid flow demarcates reversing arrangement |
| CN108225500A (en) * | 2018-04-10 | 2018-06-29 | 武汉市计量测试检定（研究）所 | A kind of fine liquid flow electromagnetic commutator |
| CN110595582A (en) * | 2019-09-04 | 2019-12-20 | 成都赫泰智能科技有限公司 | Closed electric commutator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165755A (en) * | 1999-12-07 | 2001-06-22 | Tokiko Techno Kk | Flow meter calibrator |
| CN201060035Y (en) * | 2007-07-10 | 2008-05-14 | 兰州市供水（集团）有限公司 | Commutalor with adjustable stroke speed and time difference |
| CN201622100U (en) * | 2010-02-11 | 2010-11-03 | 浙江省计量科学研究院 | Commutator in water flow standard device |
| CN203732138U (en) * | 2013-08-22 | 2014-07-23 | 开封仪表有限公司 | Pneumatic open movable reverser |
| CN203981248U (en) * | 2014-08-11 | 2014-12-03 | 丹东意邦计量仪器仪表有限公司 | A kind of reciprocal pneuamtic displacement commutator |
-
2014
- 2014-08-11 CN CN201410393242.1A patent/CN104132715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165755A (en) * | 1999-12-07 | 2001-06-22 | Tokiko Techno Kk | Flow meter calibrator |
| CN201060035Y (en) * | 2007-07-10 | 2008-05-14 | 兰州市供水（集团）有限公司 | Commutalor with adjustable stroke speed and time difference |
| CN201622100U (en) * | 2010-02-11 | 2010-11-03 | 浙江省计量科学研究院 | Commutator in water flow standard device |
| CN203732138U (en) * | 2013-08-22 | 2014-07-23 | 开封仪表有限公司 | Pneumatic open movable reverser |
| CN203981248U (en) * | 2014-08-11 | 2014-12-03 | 丹东意邦计量仪器仪表有限公司 | A kind of reciprocal pneuamtic displacement commutator |
Non-Patent Citations (1)
| Title |
|---|
| 马龙博 等: "基于换入换出同向方法的开式换向器设计及不确定度评定方法研究", 《制造业自动化》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421607A (en) * | 2016-06-07 | 2017-12-01 | 西尼尔(南京)过程控制有限公司 | Fluid flow demarcates reversing arrangement |
| CN106706081A (en) * | 2016-11-23 | 2017-05-24 | 辽宁屹霖科技发展有限公司 | Pull-rod swing nozzle reverser |
| CN108225500A (en) * | 2018-04-10 | 2018-06-29 | 武汉市计量测试检定（研究）所 | A kind of fine liquid flow electromagnetic commutator |
| CN108225500B (en) * | 2018-04-10 | 2024-01-23 | 武汉市计量测试检定（研究）所 | Micro liquid flow electromagnetic commutator |
| CN110595582A (en) * | 2019-09-04 | 2019-12-20 | 成都赫泰智能科技有限公司 | Closed electric commutator |
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Application publication date: 20141105 |
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