CN204312416U - The little stroke pressure generator of diaphragm type - Google Patents
The little stroke pressure generator of diaphragm type Download PDFInfo
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- CN204312416U CN204312416U CN201420771741.5U CN201420771741U CN204312416U CN 204312416 U CN204312416 U CN 204312416U CN 201420771741 U CN201420771741 U CN 201420771741U CN 204312416 U CN204312416 U CN 204312416U
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Abstract
The utility model provides a kind of diaphragm type little stroke pressure generator, comprise two stiffener plate be parallel to each other, film that stiffener plate two, flexible material are made, stiffener plate one, stiffener plate two two sides are in opposite directions respectively A` face, B` face, and A` face, B` face are divided into three regions: the region I contacted all the time with film or liquid; With film or liquid discontiguous region II all the time; Other region III; Region I is not communicated with region II, make film separately or jointly form confined space with stiffener plate, two stiffener plate and film define an airtight space, pass in and out this confined space through a passage, make liquid volume and the pressure change of confined space, produce pressure; This device changes that wirking pressure generator is unnecessary for function during little stroke large pressure, price is high, bulky shortcoming, and structure is simple, easily keeps in repair, can use water as medium, the pressure hour needed, can with air as medium.
Description
Technical field
The utility model relates to the little stroke pressure generator of a kind of diaphragm type.
Background technique
Pressure generator is used for the pressure processing of material.Usual hydraulic pressure, spiral, the modes such as impact produce the pressure of needs.These technology can be satisfied the demand well.But for the needs of the very little stroke of very large pressure, common press has following shortcoming: 1. function is unnecessary; 2. price is high; 3. volume is large.Other produces the device of pressure as the airbag of automobile, and the air bag of rescue etc. can not bear large pressure too greatly due to surface curvature radius.
Model utility content
The purpose of this utility model is to provide the little stroke pressure generator of a kind of diaphragm type, by changing the sealed by film space of receiving fluids or air, producing pressure and displacement, can meet the needs of little stroke, solving the above-mentioned problems in the prior art.
Technical solution of the present utility model is:
The little stroke pressure generator of a kind of diaphragm type, comprise two stiffener plate be parallel to each other, film that stiffener plate two, flexible material are made, stiffener plate one, stiffener plate two two sides are in opposite directions respectively A` face, B` face, and two stiffener plate can do the relative movement perpendicular to A` face;
A` face, B` face are divided into three regions: the region I contacted all the time with film or liquid; With film or liquid discontiguous region II all the time; Other is region III; Region I is not communicated with region II, and film is only tightly connected with stiffener plate in region I, and the method for connection is bonding, flange screw connection, i.e. film and the stiffener plate being provided with passage, and in non-passage area, film is bonding with stiffener plate; Film or by screw, flange screw, make film separately or jointly form confined space with stiffener plate, two stiffener plate and film define an airtight space, pass in and out this confined space through a passage, make liquid volume and the pressure change of confined space, produce pressure.
Further, confined space is by passage, pipeline communication fluid pump, and fluid pump is by switch valve and pipeline, and inject fluid to confined space, switch valve is by the fluid expulsion of confined space.
Further, film is the maximum cross-section area being less than confined space with the bond area of the stiffener plate not arranging passage.
Further, the cross section in region II is semicircle or semiellipse.
The little stroke pressure generator of this diaphragm type, A` face, B` face are plane parallel to each other, adopt the non-leakage fexible film not easily extended, form the confined space of variable volume of a receiving fluids, and be used for injecting to confined space pressure source and the control gear of liquid.Two stiffener plate only have very little distance between two faces in opposite directions.Along with the injection of fluid, under the effect of internal pressure, film is a semicircle with the cross section of dull and stereotyped not contacting point, and its maximum radius R is slightly larger than amplitude A.Along with the injection of fluid, the pressure in confined space and volume will change, thus produce pressure and displacement, and the stress of film is directly proportional with becoming R and fluid pressure P, therefore work as the pressure that R just can satisfy the demand for enough hour.In addition, the thickness of thin-film material is very little, therefore can produce repeatedly bending and not produce fatigue ruption.This device can meet the needs of little stroke.Stroke can be increased with several such device series connection.
Large at needs pressure for prior art, the shortcoming of the occasion that stroke is little, the utility model proposes the little stroke pressure generator of a kind of diaphragm type.Film and A` face, B` face not Full connected, contact segment can free bend.Under the effect of internal pressure, film edge place is by outwardly, and its cross section forms a semicircle.Its radius equals R when the fluid volume injected increases, and R will increase, and namely export a motion.When the resistance of the relative movement of two rigid members increases, the pressure in confined space will increase, thus export a power.Special way of the present utility model is that stroke is very little, and the radius of curvature at film edge place is also very little, thus can allow larger pressure.The formula of pressure is: P=σ/R=2 σ/C. wherein σ is the pulling force of thin-film material unit length, by the intensity of existing thin-film material, when R=0.01 rice, pressure can reach 10MP S^a.In addition, the thickness of thin-film material is very little, thus can stand repeatedly bending and not damage.
The beneficial effects of the utility model are: this kind of little stroke pressure generator of diaphragm type, change that wirking pressure generator is unnecessary for function during little stroke large pressure, price is high, bulky shortcoming, structure is simple, easy maintenance, medium can be used water as, the pressure hour needed, can with air as medium.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation that embodiment's film and stiffener plate two flange are fixed;
Fig. 3 is that embodiment connects the structural representation of liquid storage pool by pump;
Fig. 4 is that embodiment applies the structural representation with press machine;
Wherein: 1-small gear, 2-motor, 3-combined wheels, 4-top slide block, 5-circlip, 6-column, 7-bottom slide block 7,8-film, 9-base, 10-sprocket wheel, 11-motor cabinet, 12-chain, 13-safety valve, 14-pipeline, 15-pump, 16-stop valve, 17-liquid storage pool, 18-stiffener plate one, 19-stiffener plate two.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment
For meeting the needs of the little stroke of large pressure, embodiment utilizes film 8 can bear the principle of larger pressure when radius of curvature is very little, by pump 15 inject in film 8 liquid make the thickness of film 8 increase and produce thin tail sheep and produce pressure.It does not have piston, thus overcome oil hydraulic cylinder leakage, wearing and tearing, the shortcomings such as power consumption is high, its major component is by two stiffener plate of parallel placement, the use be connected with two plate seal is not leaked, the film 8 that the flexible material not easily extended is made forms, three defines the airtight space of a variable volume, liquid can pass in and out this confined space through a passage, and under internal pressure effect, the free edge place of film 8 defines the very little curved surface of radius of curvature, stress is maximum herein, and stress is less because of contacting with stiffener plate for other parts.The area of film 8 is very large compared with oil hydraulic cylinder, and therefore very little pressure just can produce very large pressure.In order to the turnover of workpiece, embodiment devises the mechanism increasing space in an unstressed state.
The little stroke pressure machine of diaphragm type, comprise base 9, four columns be parallel to each other 6, top slide block 4, bottom slide block 7, lowering or hoisting gear, diaphragm pressure generators, base 9 is fixedly connected with column 6, bottom slide block 7 slides up and down along column 6, diaphragm pressure generator between base 9 and bottom slide block 7, as Fig. 4.
Diaphragm pressure generator is by two stiffener plate be parallel to each other 1, stiffener plate 2 19, form with the film 8 that the non-leakage flexible material not easily extended is made, as shown in Figure 1, Figure 2, Fig. 3, stiffener plate 1, stiffener plate 2 19 two sides are in opposite directions respectively A` face, B` face, the distance in A` face, B` face is very little, be no more than 30mm, two stiffener plate can do the relative movement perpendicular to A` face.
A` face, B` face can be divided into three regions:
All the time the region I contacted with film 8 or liquid;
With film 8 or liquid discontiguous region II all the time;
Other region III.
Region I is not communicated with region II, film 8 is only tightly connected with stiffener plate in region I, the method connected is that bonding, flange screw connects or only contact and not fixing, namely with the stiffener plate being provided with passage, in non-passage area, film 8 is bonding with stiffener plate, as Fig. 1, or by screw, flange screw, as Fig. 2, make film 8 separately or jointly form confined space with stiffener plate, and film 8 and another stiffener plate can part bonding or only contact and do not fix, enable stiffener plate perpendicular to the activity of A` face.
Two stiffener plate and film 8 define an airtight space, and liquid passes in and out this confined space through a passage, make liquid volume and the pressure change of confined space, produce displacement and the vibration force of stiffener plate.Liquid used normally water.
Base 9 is fixedly connected with four columns 6, bottom slide block 7 there are four holes and column 6 cylindrical are slidably matched, film 8 generator is arranged between the lower plane of plane and bottom slide block 7 on base 9 except pump 15, pipeline 14, stop valve 16, safety valve 13, liquid storage pool 17, and top slide block 4, decelerator 2, motor cabinet 11, combined wheels 3, three sprocket wheels 10, nut body chain 12, circlip 5, columns 6 constitute lowering or hoisting gear jointly.Sprocket wheel 10 nut body is made up of the sprocket wheel 10 on top and a cylinder.The internal thread of cylinder engages with the outside thread of column 6, and its cylindrical and the hole of top slide block 4 are slidably matched.The bottom of cylinder has a cross section to be the annular groove of rectangle, is provided with a circlip 5 in groove, the upper plane of circlip 5 to the distance of the top of cylinder slightly larger than the thickness of top slide block 4.Combined wheels 3 is except the upper plane at sprocket wheel 10 fixes a gearwheel, identical with sprocket wheel 10 nut body.The decelerator 2 being provided with small gear 1 is fixed on the upper plane of top slide block 4 by motor cabinet 11.Small gear 1 engages with gearwheel, and chain 12 engages with four sprocket wheels 10.When motor 2 rotates, by four nut rotating Vortexes during said mechanism, drive the above-mentioned component except column 6 to move up or down, meet the needs putting into or take out workpiece.
At ascent stage, do not have pressure in film 8, what hinder nut motion is gravity, and compared with working pressure, gravity is very little, so only the very little power of need just can drive nut.When there being pressure, nut is in self-locking state, so can bear power large arbitrarily and motionless.Patrix is fixed on the lower plane of top slide block 4, and counterdie is fixed on the upper plane of bottom slide block 7.During work, time first, top slide block 4 moves upward, and after putting into workpiece, stops after making top slide block 4 move down putting in place, and then, liquid injects film 8, and bottom slide block 7 is moved up.After completing compacting, stop after top slide block 4 moves up and puts in place, then take out workpiece.
The little stroke pressure generator of diaphragm type, utilize fexible film 8 can bear the principle of larger pressure when radius of curvature is very little, be connected with the fexible film 8 that the impermeable material not easily stretched is made by two parallel stiffener plate, film 8 and two flat boards define a confined space.Inject liquid through a passage to this confined space, under internal pressure effect, the cross section in region II is semicircle.Radius R approximates amplitude A.Stress σ=the P/R of film 8 unit length.As can be seen here, as long as the maximum value of R is enough little, just requirement of strength can be met.The stress in region II is not more than the stress in region I.When the liquid volume in confined space and pressure change, just can output displacement and power.In order to meet the needs putting into and take out workpiece, the utility model devises lowering or hoisting gear, under the state not having pressure, can complete the lifting of top slide block 4 with less power, under the state having pressure, the self-locking of screw thread is utilized to make top slide block 4 can bear enough pressure.
Claims (4)
1. the little stroke pressure generator of diaphragm type, it is characterized in that: comprise two stiffener plate be parallel to each other, film that stiffener plate two, flexible material are made, stiffener plate one, stiffener plate two two sides are in opposite directions respectively A` face, B` face, and two stiffener plate can do the relative movement perpendicular to A` face;
A` face, B` face are divided into three regions: the region I contacted all the time with film or liquid; With film or liquid discontiguous region II all the time; Other is region III; Region I is not communicated with region II, and film is only tightly connected with stiffener plate in region I, and the method for connection is bonding, flange screw connection, i.e. film and the stiffener plate being provided with passage, and in non-passage area, film is bonding with stiffener plate; Film or by screw, flange screw, make film separately or jointly form confined space with stiffener plate, two stiffener plate and film define an airtight space, pass in and out this confined space through a passage, make liquid volume and the pressure change of confined space, produce pressure.
2. the little stroke pressure generator of diaphragm type as claimed in claim 1, it is characterized in that: confined space is by passage, pipeline communication fluid pump, fluid pump is by switch valve and pipeline, and inject fluid to confined space, switch valve is by the fluid expulsion of confined space.
3. the little stroke pressure generator of diaphragm type as claimed in claim 1 or 2, is characterized in that: film is the maximum cross-section area being less than confined space with the bond area of the stiffener plate not arranging passage.
4. the little stroke pressure generator of diaphragm type as claimed in claim 3, is characterized in that: the cross section in region II is semicircle or semiellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771741.5U CN204312416U (en) | 2014-12-10 | 2014-12-10 | The little stroke pressure generator of diaphragm type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771741.5U CN204312416U (en) | 2014-12-10 | 2014-12-10 | The little stroke pressure generator of diaphragm type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312416U true CN204312416U (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771741.5U Expired - Fee Related CN204312416U (en) | 2014-12-10 | 2014-12-10 | The little stroke pressure generator of diaphragm type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454684A (en) * | 2014-12-10 | 2015-03-25 | 南京工程学院 | Membrane type small-stroke pressure generator |
| CN105651424A (en) * | 2015-12-30 | 2016-06-08 | 哈尔滨工业大学 | Flexible pressure detection device |
-
2014
- 2014-12-10 CN CN201420771741.5U patent/CN204312416U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454684A (en) * | 2014-12-10 | 2015-03-25 | 南京工程学院 | Membrane type small-stroke pressure generator |
| CN105651424A (en) * | 2015-12-30 | 2016-06-08 | 哈尔滨工业大学 | Flexible pressure detection device |
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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: 20150506 Termination date: 20151210 |
|
| EXPY | Termination of patent right or utility model |