CN203981220U - A kind of fixed orifice Flow characteristic experiment device of adjustable clearance - Google Patents
A kind of fixed orifice Flow characteristic experiment device of adjustable clearance Download PDFInfo
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- CN203981220U CN203981220U CN201420418762.9U CN201420418762U CN203981220U CN 203981220 U CN203981220 U CN 203981220U CN 201420418762 U CN201420418762 U CN 201420418762U CN 203981220 U CN203981220 U CN 203981220U
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- fixed orifice
- baffle plate
- supporting plate
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Abstract
The utility model relates to a kind of fixed orifice Flow characteristic experiment device of adjustable clearance, fixed orifice, guiding supporting plate and axle sleeve are all placed in cylindrical sleeves with one heart, guiding supporting plate is arranged on sleeve lining, both as removable baffle plate bracket, while guaranteeing to regulate, the depth of parallelism of removable baffle plate and exit end face, leads simultaneously; Screw mandrel-gapping of spring regulating device, by the rotation of adjusting knob, drives moving forward and backward of removable baffle plate, changes the outlet gap of fixed orifice; Index dial on regulating sleeve and the scale on knob coordinate, and indicate the displacement of removable baffle plate, accurately read the outlet gap of fixed orifice.Utilize this device can form variable orifice, pneumatic element inside fixed restriction pore structure is simulated, and test its discharge characteristic.
Description
Technical field
The utility model relates to pneumatics field, particularly the Flow characteristic experiment device under the variable exit condition of pneumatic element.
Background technology
Pneumatic element inside is arranged in a combination according to different modes by multi-form fixed orifice, thereby the discharge characteristic of throttle orifice directly determines the discharge characteristic of pneumatic element, and the discharge characteristic of throttle orifice is mainly subject to the impact of diameter, length and outlet gap, at present, also there is no a set of complete device, can be used for the discharge characteristic test of fixed orifice, particularly for the regulating device of the variable outlet gap of throttle orifice.
Utility model content
For above-mentioned defect, the purpose of this utility model is to provide a kind of fixed orifice Flow characteristic experiment device of adjustable clearance, utilizes this device to simulate and to test its discharge characteristic to pneumatic element inside fixed restriction pore structure.
The utility model solves the technical scheme that its technical matters adopts:
A fixed orifice Flow characteristic experiment device for adjustable clearance, is characterized in that: comprise fixed orifice, guiding supporting plate, spring, removable baffle plate, axle sleeve, sleeve, regulating sleeve, knob, front end end cover and rear end cap; Fixed orifice, guiding supporting plate and axle sleeve are all placed in cylindrical sleeves with one heart, and sleeve two ends are by front end end cover and rear end cap fixed closed;
Fixed orifice is the step-like cylindrical shell of ring with chassis, and cylindrical shell center pit and upstream pressure measuring tube abutting end are from stretching out and pass the center pit of front end end cover in sleeve; Fixed orifice is positioned at sleeve left end and forms circumferential seal with sleeve lining; Removable baffle plate comprises adjuster bar and the baffle plate of one, and baffle plate is between fixed orifice and guiding supporting plate, and adjuster bar passes axle sleeve, rear end cap, regulating sleeve and knob concentric center pit separately after passing guiding supporting plate center pit successively; Spring be nested with adjuster bar between guiding supporting plate and axle sleeve outside and can precompression so that removable baffle plate between supporting plate, knob and regulating sleeve, fit tightly with leading;
Circumferential seal between axle sleeve and sleeve; Circumferential seal between axle sleeve center bore inner wall and adjuster bar outer wall; The sleeve of fixed orifice is near arrange downstream pressure measuring tube connecting through hole vertical with cylindrical shell center line on the barrel of axle sleeve; Removable baffle plate adjuster bar is divided into polished rod and screw mandrel part from left to right, between adjuster bar outer wall, before circumferential seal, is polished rod, is screw mandrel afterwards, screw mandrel and knob center pit screw-internal thread fit; Center pit is established at guiding supporting plate center, and peripheral circumferential is evenly equipped with three water conservancy diversion short slots, and the baffle plate of removable baffle plate can move left and right along guiding supporting plate center pit with adjuster bar; Regulating sleeve end face is provided with equally distributed index dial, has groove on knob, and groove coordinates with index dial; Screw mandrel pitch is set to associated with regulating sleeve index dial.
In technique scheme, along cener line direction, guiding supporting plate center pit left side also arranges the step shrinkage pool that diameter is greater than guiding supporting plate center pit, and the baffle plate of removable baffle plate is positioned at guiding supporting plate center step shrinkage pool and can along guiding supporting plate center pit, moves left and right with adjuster bar.
In technique scheme, the cylindrical shell center pit of fixed orifice extends to chassis and on center chassis, forms an anchor ring, anchor ring center is center chassis through hole, and cylindrical shell center pit forms the poroid throttle orifice of concentric step with center chassis through hole, and chassis arranges seal groove.
In technique scheme, when sleeve is horizontally disposed with, downstream pressure measuring tube connecting through hole is positioned at sleeve bottom side or leading flank.
In technique scheme, between axle sleeve and sleeve, by O RunddichtringO, seal; Between the adjuster bar outer wall of axle sleeve center bore inner wall and removable baffle plate, by QY RunddichtringO, sealed.
In technique scheme, all spacing by shoulder between front end end cover and rear end cap and sleeve, and all by threaded fastener, connect separately.
In technique scheme, between fixed orifice and sleeve lining, by shoulder, form right limit, between axle sleeve and sleeve lining, by shoulder, form left limit.
In technique scheme, index dial setting of printing is on regulating sleeve end face, and screw mandrel pitch is set to knob and often rotates a circle that removable baffle plate advances or a slow astern flight pitch.
Thus, the utility model is consisted of throttle orifice stationary installation, guide piece, screw mandrel-gapping of spring regulating device and locating device.Front end end cover is fixed fixed orifice; Guiding supporting plate is arranged on sleeve lining, and both as removable baffle plate bracket, while guaranteeing to regulate, the depth of parallelism of removable baffle plate and exit end face, leads simultaneously; Screw mandrel-gapping of spring regulating device, by the rotation of adjusting knob, drives moving forward and backward of removable baffle plate, changes the outlet gap △ of fixed orifice; Index dial on regulating sleeve and the scale on knob coordinate, and indicate the displacement of removable baffle plate, accurately read the outlet gap △ of fixed orifice.
The outlet gap △ of fixed orifice regulates by guide piece, regulate screw mandrel and locating device to realize, wherein guide piece coordinates installation with sleeve lining, removable baffle plate and the parallel installation of fixed orifice exit end face, polished rod in screw mandrel is partly through the QY RunddichtringO that is built in axle sleeve, spring fitting is between guiding supporting plate and axle sleeve, and spring is carried out to precompression, the tensile force of spring compresses and eliminates thread pitch removable baffle plate, and promote to move back and forth about removable baffle plate, simultaneously for compression and the reset of the supporting plate that leads, eliminate fit-up gap simultaneously.
Guiding supporting plate circumferencial direction is evenly equipped with three water conservancy diversion short slots, and gas can enter sleeve back cavity by water conservancy diversion short slot, not the mobile excessive resistance that causes to gas.
The adjuster bar of removable baffle plate is divided into polished rod and screw mandrel part from left to right, and screw mandrel is for the movement of controllable register, for gap adjustment.Polished rod guarantees that O-ring seal can positiver sealing.
Regulating sleeve end face is printed equally distributed index dial, has groove on adjusting knob, and groove coordinates with index dial, can read outlet gap.As, can be set to knob and often rotate a circle, removable baffle plate advances or a slow astern flight pitch.
Regulating sleeve can dismounting, according to the demand in different adjustment gap, and the regulating sleeve of replaceable different length, versatility is good.
The nonadjustable present situation of outlet gap △ with respect to existing fixed orifice, the beneficial effects of the utility model are, utilize fixed orifice, guiding supporting plate, threaded rod and spring and matching component, form variable orifice, regulate the outlet gap of fixed orifice.By this structure, simulation pneumatic element flow passage structure and multiple exit condition, and measure its discharge characteristic, realize the accurate adjusting of the outlet gap of fixed orifice.And this apparatus structure simple compactness, good airproof performance, be convenient to dismounting, have good versatility.
Accompanying drawing explanation
Fig. 1 is the cut-open view of the fixed orifice Flow characteristic experiment device of the utility model adjustable clearance.
Fig. 2 is the stereographic map of the utility model fixed orifice.
Fig. 3 is the partial sectional view of the utility model fixed orifice.
Fig. 4 is the stereographic map of the utility model guiding supporting plate.
Fig. 5 is the stereographic map of the removable baffle plate of the utility model.
Fig. 6 is the stereographic map of the utility model regulating sleeve.
Fig. 7 is the fixed orifice Flow characteristic experiment device assembly construction figure of adjustable clearance of the present utility model.
Each Reference numeral is corresponding as follows:
Front end end cover 1, fixed orifice 2, guiding supporting plate 3, spring 4, removable baffle plate 5, axle sleeve 6, sleeve 7, fastening bolt 8, regulating sleeve 9, knob 10, rear end cap 11, QY RunddichtringO 12, O RunddichtringO 13, downstream pressure measuring tube 14, upstream pressure measuring tube 15, outlet gap △.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is further illustrated.
The fixed orifice Flow characteristic experiment device of adjustable clearance of the present utility model referring to accompanying drawing 1 ?7, comprise front end end cover 1, fixed orifice 2, guiding supporting plate 3, spring 4, removable baffle plate 5, axle sleeve 6, sleeve 7, regulating sleeve 9, knob 10, rear end cap 11.Shown in Fig. 1, be the cut-open view of this device.Fixed orifice 2 is the step-like cylindrical shell of ring with chassis, cylindrical shell center pit extends to chassis and on center chassis, forms an anchor ring, anchor ring center is center chassis through hole, and cylindrical shell center pit forms the poroid throttle orifice of concentric step with center chassis through hole, and chassis arranges seal groove; Fixed orifice 2, guiding supporting plate 3 and axle sleeve 6 are all placed in cylindrical sleeves 7 with one heart.
Fixed orifice 2 is placed in cylindrical sleeves 7 left ends and the O RunddichtringO 13 by seal groove forms sealing with sleeve lining, and cylindrical shell center pit one end is from stretching out and pass the center pit of front end end cover 1 in sleeve 7; Removable baffle plate 5 comprises baffle plate and the adjuster bar of one, baffle plate between fixed orifice 2 and guiding supporting plate 3 and baffle plate be positioned at the center stepped hole of guiding supporting plate 3, adjuster bar through guiding supporting plate 3 center pits after successively through axle sleeve 6, rear end cap 11, regulating sleeve 9 and knob 10 concentric center pit separately; Spring 4 be nested with outside at adjuster bar and can be between guiding supporting plate 3 and axle sleeve 6 and can be compressed so that removable baffle plate 5 and leading between supporting plate 3, knob 10 and regulating sleeve 9, fit tightly; Between axle sleeve 6 and sleeve 7, by O RunddichtringO 13, seal; Between the adjuster bar outer wall of axle sleeve 6 center bore inner walls and removable baffle plate 5, by QY RunddichtringO 12, sealed.The cylindrical shell center bore inner wall of fixed orifice 2 arranges screw thread.Sleeve 7 is near arrange through hole vertical with cylindrical shell center line on the barrel of axle sleeve 7, and preferably when sleeve 7 is horizontally disposed with, through hole is positioned at sleeve bottom.
As shown in Figure 4, guiding supporting plate 3 circumferencial directions are evenly equipped with three water conservancy diversion short slots, and gas can enter sleeve 7 back cavities by water conservancy diversion short slot, gas mobile are not caused excessive.
7, front end end cover 1 and rear end cap 11 and sleeve are all spacing by shoulder, and all by threaded fastener (as fastening bolt 8), connect separately, are convenient to dismounting.
Between fixed orifice 2 and sleeve 7 inwalls, by shoulder, form right limit, between axle sleeve 6 and sleeve 7 inwalls, by shoulder, form left limit.
As Fig. 5, removable baffle plate is divided into polished rod and screw mandrel part from left to right, and the rod end that polished rod stretches out after QY RunddichtringO 12 is screw mandrel, screw mandrel and knob 10 center pit screw-internal thread fit.Screw mandrel is for the movement of controllable register, for gap adjustment.Preferably screw mandrel pitch is 0.5mm, and adjustable clearance is 0～30mm.Polished rod guarantees that QY RunddichtringO can positiver sealing.
The removable baffle plate 5 that rotarily drives of knob 10 moves left and right; Spring 4 is placed between guiding supporting plate 3 and axle sleeve 6, and the precompressed tensile force of spring 4 can be eliminated thread pitch, and when knob unclamps, the restoring force of spring fits tightly knob 10 and regulating sleeve 9 end faces; As Fig. 7, circumferentially uniform scale mark is carved with in regulating sleeve 9 right sides, and knob 10 often rotates a circle, and removable baffle plate 5 advances or a slow astern flight pitch.
The cylinder that stretches out that the inner face setting of axle sleeve 6 is turned right and protruded, stretches out the inner right-hand member of a center pit spacing shoulder is set, and spring 4 right-hand members are resisted against and stretch out on the inner spacing shoulder of cylinder; The inner left end of guiding supporting plate 3 center pits arranges spacing shoulder, and spring 4 right-hand members are resisted against on the spacing shoulder of guiding supporting plate 3 center pit inside.
Thus, the utility model is consisted of throttle orifice stationary installation, guide piece, screw mandrel-gapping of spring regulating device and locating device.Front end end cover is fixed fixed orifice; Guiding supporting plate is arranged on sleeve lining, and both as removable baffle plate bracket, while guaranteeing to regulate, the depth of parallelism of removable baffle plate and exit end face, leads simultaneously; Screw mandrel-gapping of spring regulating device, by the rotation of adjusting knob, drives moving forward and backward of removable baffle plate, changes the outlet gap △ of fixed orifice; Index dial on regulating sleeve and the scale on knob coordinate, and indicate the displacement of removable baffle plate, accurately read the outlet gap △ of fixed orifice.
The outlet gap △ of fixed orifice regulates by guide piece, regulate screw mandrel and locating device to realize, wherein guide piece coordinates installation with sleeve lining, removable baffle plate and the parallel installation of fixed orifice exit end face, polished rod in screw mandrel is partly through the QY RunddichtringO that is built in axle sleeve, spring fitting is between guiding supporting plate and axle sleeve, and spring is carried out to precompression, the tensile force of spring compresses and eliminates thread pitch removable baffle plate, and promote to move back and forth about removable baffle plate, simultaneously for compression and the reset of the supporting plate that leads, eliminate fit-up gap simultaneously.
As Fig. 7, during test, fixed orifice 2 arranges screw thread by cylindrical shell center bore inner wall and is connected with upstream pressure measuring tube 15, and sleeve 7 bottoms are connected with downstream pressure measuring tube 14 by through hole internal thread; After having assembled, by adjusting knob 10, drive removable baffle plate 5 to move left and right, according to experiment, need to regulate the outlet gap △ of fixed orifice; Because upstream pressure measuring tube 15 and downstream pressure measuring tube 14 all arrange sensor, both pressure datas arrive industrial computer through signals collecting with after processing, to measure in real time.
In the present embodiment, regulating sleeve 9 its right end face are printed 50 scale marks that have circumferentially average calibration, and the graticule on knob 10 coordinates and carries out reading with regulating sleeve 9 end face scale marks, every rotation one lattice of knob 10, and removable baffle plate 5 advances or retreats 0.01mm; Also be that knob 10 often rotates a circle, removable baffle plate 5 advances or a slow astern flight pitch 0.5mm.
Below be only a kind of example of the present utility model, according to above-mentioned design of the present utility model, those skilled in the art can also modify as required and convert, as the variation of throttle orifice shape, the variation of screw mandrel pitch, the variation of length sleeve and adjustable clearance, the distribution of regulating sleeve end face scale etc., however similar this variation and modification all belong to essence of the present utility model.
Claims (8)
1. a fixed orifice Flow characteristic experiment device for adjustable clearance, is characterized in that: comprise fixed orifice, guiding supporting plate, spring, removable baffle plate, axle sleeve, sleeve, regulating sleeve, knob, front end end cover and rear end cap; Fixed orifice, guiding supporting plate and axle sleeve are all placed in cylindrical sleeves with one heart, and sleeve two ends are by front end end cover and rear end cap fixed closed;
Fixed orifice is the step-like cylindrical shell of ring with chassis, and cylindrical shell center pit and upstream pressure measuring tube abutting end are from stretching out and pass the center pit of front end end cover in sleeve; Fixed orifice is positioned at sleeve left end and forms circumferential seal with sleeve lining; Removable baffle plate comprises adjuster bar and the baffle plate of one, and baffle plate is between fixed orifice and guiding supporting plate, and adjuster bar passes axle sleeve, rear end cap, regulating sleeve and knob concentric center pit separately after passing guiding supporting plate center pit successively; Spring be nested with adjuster bar between guiding supporting plate and axle sleeve outside and can precompression so that removable baffle plate between supporting plate, knob and regulating sleeve, fit tightly with leading;
Circumferential seal between axle sleeve and sleeve; Circumferential seal between axle sleeve center bore inner wall and adjuster bar outer wall; The sleeve of fixed orifice is near arrange downstream pressure measuring tube connecting through hole vertical with cylindrical shell center line on the barrel of axle sleeve; Removable baffle plate adjuster bar is divided into polished rod and screw mandrel part from left to right, between adjuster bar outer wall, before circumferential seal, is polished rod, is screw mandrel afterwards, screw mandrel and knob center pit screw-internal thread fit; Center pit is established at guiding supporting plate center, and peripheral circumferential is evenly equipped with three water conservancy diversion short slots, and the baffle plate of removable baffle plate can move left and right along guiding supporting plate center pit with adjuster bar; Regulating sleeve end face is provided with equally distributed index dial, has groove on knob, and groove coordinates with index dial; Screw mandrel pitch is set to associated with regulating sleeve index dial.
2. the fixed orifice Flow characteristic experiment device of adjustable clearance according to claim 1, it is characterized in that: along cener line direction, guiding supporting plate center pit left side also arranges the step shrinkage pool that diameter is greater than guiding supporting plate center pit, and the baffle plate of removable baffle plate is positioned at guiding supporting plate center step shrinkage pool and can along guiding supporting plate center pit, moves left and right with adjuster bar.
3. the fixed orifice Flow characteristic experiment device of adjustable clearance according to claim 1, it is characterized in that: the cylindrical shell center pit of fixed orifice extends to chassis and on center chassis, forms an anchor ring, anchor ring center is center chassis through hole, cylindrical shell center pit forms the poroid throttle orifice of concentric step with center chassis through hole, and chassis arranges seal groove.
4. according to the fixed orifice Flow characteristic experiment device of the adjustable clearance one of claim 1-3 Suo Shu, it is characterized in that: when sleeve is horizontally disposed with, downstream pressure measuring tube connecting through hole is positioned at sleeve bottom side or leading flank.
5. the fixed orifice Flow characteristic experiment device of adjustable clearance according to claim 1, is characterized in that: between axle sleeve and sleeve, by O RunddichtringO, seal; Between the adjuster bar outer wall of axle sleeve center bore inner wall and removable baffle plate, by QY RunddichtringO, sealed.
6. the fixed orifice Flow characteristic experiment device of adjustable clearance according to claim 1, is characterized in that: all spacing by shoulder between front end end cover and rear end cap and sleeve, and all by threaded fastener, connect separately.
7. the fixed orifice Flow characteristic experiment device of adjustable clearance according to claim 1, is characterized in that: between fixed orifice and sleeve lining, by shoulder, form right limit, between axle sleeve and sleeve lining, by shoulder, form left limit.
8. according to the fixed orifice Flow characteristic experiment device of the adjustable clearance one of claim 1-3 Suo Shu, it is characterized in that: index dial setting of printing is on regulating sleeve end face, and screw mandrel pitch is set to knob and often rotates a circle that removable baffle plate advances or a slow astern flight pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420418762.9U CN203981220U (en) | 2014-07-28 | 2014-07-28 | A kind of fixed orifice Flow characteristic experiment device of adjustable clearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420418762.9U CN203981220U (en) | 2014-07-28 | 2014-07-28 | A kind of fixed orifice Flow characteristic experiment device of adjustable clearance |
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| Publication Number | Publication Date |
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| CN203981220U true CN203981220U (en) | 2014-12-03 |
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| CN201420418762.9U Expired - Fee Related CN203981220U (en) | 2014-07-28 | 2014-07-28 | A kind of fixed orifice Flow characteristic experiment device of adjustable clearance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101388A (en) * | 2014-07-28 | 2014-10-15 | 武汉理工大学 | Gap-adjustable orifice flow characteristic experimental facility |
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2014
- 2014-07-28 CN CN201420418762.9U patent/CN203981220U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101388A (en) * | 2014-07-28 | 2014-10-15 | 武汉理工大学 | Gap-adjustable orifice flow characteristic experimental facility |
| CN104101388B (en) * | 2014-07-28 | 2017-03-08 | 武汉理工大学 | A kind of throttle orifice Flow characteristic experiment device of adjustable clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150728 |
|
| EXPY | Termination of patent right or utility model |