CN203981248U - A kind of reciprocal pneuamtic displacement commutator - Google Patents
A kind of reciprocal pneuamtic displacement commutator Download PDFInfo
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- CN203981248U CN203981248U CN201420451793.4U CN201420451793U CN203981248U CN 203981248 U CN203981248 U CN 203981248U CN 201420451793 U CN201420451793 U CN 201420451793U CN 203981248 U CN203981248 U CN 203981248U
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Abstract
The utility model relates to a kind of reciprocal pneuamtic displacement commutator, 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.The utility model action is light and handy, and during commutation, straight line moves axially, and resistance is little, action is fast, and commutating period is poor little, can make pipeline produce relatively little vibrations during large flow verification, during commutation, produce relatively little noise, failure rate is little, can be widely used in liquid flow standard device.
Description
Technical field
The utility model 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, at preproduction phase liquid, from by-pass pipe, get back to pond; When work, regulated 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 during commutation, noise is very large, and its result not only directly affects the accuracy of measurement result, also to the serviceable life of equipment and environmental pollution causing negative effect.
Utility model content
For prior art middle open type commutator make that pipeline vibrations are large, measurement result accuracy is poor, etc. weak point, the technical problems to be solved in the utility model is to provide and a kind ofly makes 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 adopted in the utility model is:
A kind of reciprocal pneuamtic displacement of the utility model commutator, 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.
Tail end at cylinder is provided with the block being synchronized with the movement with piston rod, in a side of block, is provided with photoimpact converter, and the photoimpact transducer signal that signalling generator collects is forwarded to computing machine again and processes.
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 utlity model has following beneficial effect and advantage:
1. the utility model action is light and handy, and during 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 during large flow verification, produces relatively little noise during commutation.
2. the utility model reciprocal pneuamtic Yi 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 utility model is installed, 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 utility model has shortened commutation journey time, can be less than 10ms (national verification rules are to be less than 20ms), and measuring accuracy is improved, and device calibrating data are more accurate.
Accompanying drawing explanation
Fig. 1 is the structure of traditional open type commutator;
Fig. 2 is the utility model structural representation;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the left activation point schematic diagram of the movable part in the utility model;
Fig. 5 is the right activation point schematic diagram of the movable part in the utility model.
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 utility model is further elaborated.
As shown in Figure 2,3, a kind of reciprocal pneuamtic displacement of the utility model commutator 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.
Tail end at cylinder 13 is provided with the block being synchronized with the movement with piston rod, in a side of block, is provided with photoimpact converter, and the photoimpact transducer signal that signalling generator 15 collects is forwarded in control device again.
Principle of work of the present utility model is:
Water inflow nozzle 10 is fixedly installed in the top of a kind of reciprocal pneuamtic displacement of the utility model commutator, and water trap 14 is fixedly installed in the top of volumetric standard and by-pass pipe.(when liquid flows into volumetric standard, be the accuracy of calibrating flowmeter, flow into the just direct intake pool of by-pass pipe).By cylinder 13, drive movable part 11 by sliding bearing 16, on the two guide rails in housing 12, to do the minimum linear reciprocating motion of friction force, 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 during commutation.
The utility model action is light and handy, and during commutation, straight line moves axially, and resistance is little, and action is fast, and commutating period is poor little.During large flow verification, can make pipeline produce relatively little vibrations, during commutation, produce relatively little noise.
Claims (6)
1. 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: the tail end at cylinder is provided with the block being synchronized with the movement with piston rod, a side at block is provided with photoimpact converter, and the photoimpact transducer signal that signalling generator collects is forwarded to computing machine again and processes.
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 |
|---|---|---|---|
| CN201420451793.4U CN203981248U (en) | 2014-08-11 | 2014-08-11 | A kind of reciprocal pneuamtic displacement commutator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451793.4U CN203981248U (en) | 2014-08-11 | 2014-08-11 | A kind of reciprocal pneuamtic displacement commutator |
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| CN203981248U true CN203981248U (en) | 2014-12-03 |
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| CN201420451793.4U Active CN203981248U (en) | 2014-08-11 | 2014-08-11 | A kind of reciprocal pneuamtic displacement commutator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132715A (en) * | 2014-08-11 | 2014-11-05 | 丹东意邦计量仪器仪表有限公司 | Reciprocating type pneumatic shifting reverser |
| CN104568081A (en) * | 2014-12-19 | 2015-04-29 | 辽宁屹霖科技发展有限公司 | Gooseneck-type spraying nozzle |
| 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 |
-
2014
- 2014-08-11 CN CN201420451793.4U patent/CN203981248U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132715A (en) * | 2014-08-11 | 2014-11-05 | 丹东意邦计量仪器仪表有限公司 | Reciprocating type pneumatic shifting reverser |
| CN104568081A (en) * | 2014-12-19 | 2015-04-29 | 辽宁屹霖科技发展有限公司 | Gooseneck-type spraying nozzle |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |