CN208858535U - The non-equipotential flexural deformations control structure of diaphragm pump diaphragm - Google Patents
The non-equipotential flexural deformations control structure of diaphragm pump diaphragm Download PDFInfo
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- CN208858535U CN208858535U CN201821738602.7U CN201821738602U CN208858535U CN 208858535 U CN208858535 U CN 208858535U CN 201821738602 U CN201821738602 U CN 201821738602U CN 208858535 U CN208858535 U CN 208858535U
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Abstract
The utility model relates to the non-equipotential flexural deformations control structure of diaphragm pump diaphragm, including cylinder body, it is equipped with diaphragm in cylinder body, the entire edge of diaphragm is in the same plane, which is mid-plane；The side of diaphragm is hydraulic oil chamber, and the other side is medium chamber；Inboard wall of cylinder block has to hydraulic oil chamber side by the restriction section of contracting；The geometric center of diaphragm towards hydraulic oil chamber side is connected with trigger by guide rod, is communicated with oil extraction and repairing controller with hydraulic oil chamber；It is calculated from mid-plane, diaphragm agitates respectively to the working limit position of hydraulic oil side and works normally initial position, and trigger stroke is respectively C and A；When diaphragm is agitated respectively to the normal work final position of side medium and working limit position, trigger stroke is respectively B and D, B < D < A < C, and repairing controller corresponds to A point, and oil extraction controller corresponds to D point.The utility model can extend diaphragm service life while not influence medium in the indoor mobility of dielectric cavity.
Description
Technical field
The utility model belongs to the technical field pumped in fluid varactor machine, and in particular to a kind of diaphragm pump diaphragm is non-etc.
Position flexural deformations control structure.
Background technique
The working principle of diaphragm pump is agitated back and forth by the intracorporal diaphragm of cylinder, so that the volume for changing medium chamber reaches
The purpose of sucking and discharge pumped medium.The side of diaphragm is drive part, and the other side is medium chamber, and drive part is to drive
The driving mechanism that diaphragm is agitated back and forth, drive form have machine driving, hydraulic drive and Pneumatic Transmission etc., and application is relatively broad
Be hydraulic drive, i.e., drive the hydraulic oil in hydraulic fluid chamber room to drive the diaphragm to agitate back and forth by driving mechanism.Work as diaphragm
It agitates to hydraulic oil side, the sucking valve group of medium chamber is because medium is opened and sucked to negative pressure, when diaphragm is agitated to media side,
The sucking valve group of medium chamber is because positive pressure is closed, while the discharge valve group of medium chamber is because positive pressure is opened and medium is discharged.
Diaphragm is that identical, current diaphragm pump is substantially using diaphragm towards the greatest limit deformation quantity that two sides are agitated
The work deformation quantity that equipotential flexural deformations working forms, i.e. diaphragm are agitated to two sides is symmetrical and is equal to greatest limit substantially
Deformation quantity, since diaphragm agitates movement back and forth always at work, edge and the root position connecting with inboard wall of cylinder block are most
It is easy damaged and diaphragm pump is caused to fail.For the service life for extending diaphragm, such as Fig. 1, intrinsic diaphragm pump is by making cylinder body
Inner wall forms one section since diaphragm 2 to the restriction section 11 of 3 side of hydraulic oil chamber gradually undergauge, the restriction section 11 and diaphragm 2
Ultimate deformation shape towards 3 side of hydraulic oil chamber is corresponding, in this way, when diaphragm 2 is agitated to hydraulic oil side, the deformation meeting of diaphragm 2
The limitation of section 11 is restricted to protect the edge of diaphragm 2, diaphragm 2 will not be destroyed because of abnormal deformation；But in medium chamber 4
Side is not provided with similar restriction section 11, and the diaphragm 2 of current diaphragm pump is all equipotential flexural deformations form, i.e. A=B, every
When film 2 is agitated to side medium, deformation is protected from control, the situation damaged due to abnormal deformation of diaphragm 2 because being not affected by limitation
Still frequent occurrence.Be not the reason of similar restriction section is arranged in 4 side of medium chamber because medium needs are inhaled into and are discharged, if
Similar restriction section is also provided in 4 side of medium chamber or restriction plate will affect mobility of the medium in medium chamber 4, to subtract
The working efficiency of low pump increases the energy consumption of pump, also will increase the volume of the side section to a certain extent, if what is especially pumped is
When ore pulp class medium, similar restriction section or restriction plate can seriously affect pumping flow or even medium in diaphragm and the lateral confinement system
It is accumulated between plate, and then leads to not pump, and the pumped medium object at the beginning of diaphragm pump is researched and developed (is needed using diaphragm pump
Occasion), the exactly bad slurry class medium of mobility.
Meanwhile when diaphragm pump work, the hydraulic oil in driving mechanism driving hydraulic oil chamber 3 drives diaphragm 2 to agitate back and forth,
The work deformation quantity that diaphragm 2 is agitated to two sides is also determined by the stroke range of driving mechanism and path increment, in order to avoid due to driving
The reasons such as the exception of motivation structure drives, the consumption of hydraulic oil or the row's of benefit The hydraulic oil are unreasonable cause diaphragm 2 because of ultralimit deformation
It measures and is destroyed, also repairing controller 32 and oil extraction controller 31 are set in hydraulic oil chamber 3 to further prevent diaphragm 2 to surpass
Ultimate deformation amount out, the work deformation quantity (A, B) that current design septation 2 is agitated to two sides are symmetrical and are slightly less than maximum
Ultimate deformation amount C, the spacing L=A+B between repairing controller 32 and oil extraction controller 31.About repairing controller 32 and row
Involved by the technology of oily controller 31 also has in CN102562549A, CN203962353U, but solving how to extend diaphragm 2
Service life the problem of on all need to be advanced optimized.
Summary of the invention
For the above-mentioned deficiency of the prior art, the technical problem to be solved by the present invention is to provide a kind of diaphragm pump diaphragms
Non- equipotential flexural deformations control structure avoids diaphragm from being easy damaged influence diaphragm service life in the course of work agitated back and forth
The problem of, obtaining does not influence the effect that pumped medium effectively extends diaphragm service life while dielectric cavity indoor mobility
Fruit.
In order to solve the above technical problems, the utility model adopts the following technical solution:
The non-equipotential flexural deformations control structure of diaphragm pump diaphragm, including cylinder body, the cylinder body is interior to be equipped with diaphragm, the side of diaphragm
Along with inboard wall of cylinder block be tightly connected and it is in the same plane, the plane be mid-plane；The side of diaphragm is hydraulic fluid chamber
Room, the other side are medium chamber, are communicated with sucking valve group and discharge valve group with the medium chamber；Hydraulic oil chamber is far from diaphragm
Side be equipped with driving mechanism and drive diaphragm to agitate back and forth to drive the hydraulic oil in hydraulic fluid chamber room；Inboard wall of cylinder block have from
The mid-plane starts the restriction section to hydraulic oil chamber side gradually undergauge；Diaphragm is towards hydraulic oil chamber side side
Geometric center is equipped with guide rod, and the free end of guide rod is directed away from the direction of diaphragm and is connected with trigger, with the hydraulic fluid chamber
Room is communicated with oil extraction controller and repairing controller, and the oil extraction controller is between repairing controller and diaphragm；
Diaphragm is agitated from mid-plane to hydraulic oil chamber to working limit position, and the stroke of trigger is C,
Diaphragm is agitated from mid-plane to hydraulic oil chamber to initial position is worked normally, and the stroke of trigger is A；
Diaphragm is agitated from mid-plane to medium chamber to final position is worked normally, and the stroke of trigger is B,
Diaphragm is agitated from mid-plane to medium chamber to working limit position, and the stroke of trigger is D, B < D < A
< C；
In the stroke directions of trigger, the setting position of repairing controller and diaphragm are agitated to hydraulic oil chamber to normal
The position of its trigger is corresponding when work starting position, and the setting position of oil extraction controller and diaphragm are agitated to medium chamber to work
The position for making its trigger when extreme position is corresponding.
The non-equipotential flexural deformations control structure of the diaphragm pump diaphragm of the utility model, by the stroke range of driving mechanism and
Path increment and diaphragm agitate the Corresponding matching of stroke, and the work deformation quantity for agitating diaphragm to side medium is less than to hydraulic oil side drum
Dynamic work deformation quantity, i.e. B < A realize the non-equipotential flexural deformations working forms of diaphragm；When diaphragm is agitated to hydraulic oil side
When, the deformation of diaphragm is restricted the limitation of section to protect the edge of diaphragm, and diaphragm will not be destroyed because of abnormal deformation, works as diaphragm
When agitating to side medium, due to B < D < A, the work deformation quantity that diaphragm is agitated to side medium is relatively small, the root of diaphragm and
Edge would not generate excessive abnormal deformation, also reduce diaphragm to medium chamber agitate to work normally final position and
The flexural stress and tensile stress born when working limit position, makes diaphragm also be effectively protected in side medium；In this way, diaphragm
Movement deformation to two sides is all restricted protection, effectively extends the service life of diaphragm；Meanwhile the dielectric cavity of the utility model
The structure for similar restriction section that no setting is required for room, will not influence pumped medium in the indoor mobility of dielectric cavity, prevents slurry medium
It is accumulated in diaphragm root, improves the working efficiency of pump, reduced energy consumption, diaphragm pump is allow to be applied more broadly in various occasions,
The more preferable slurry class medium bad applied to pumping flow.Meanwhile devising the setting of repairing controller and oil extraction controller
Position, guarantee under any circumstance, diaphragm to two sides agitate all will not ultralimit deformation quantity, and diaphragm hydraulic oil side bend
Amount is greater than in side medium deflection.If indicated with mathematical expression, that is, sets diaphragm and agitate to hydraulic oil side to normal work starting
When position, the distance of trigger to mid-plane is X, and the distance of repairing controller to mid-plane is determined as Y, then Y=X；
In the stroke directions of trigger, between repairing controller and diaphragm, repairing controller and oil extraction control oil extraction controller
The spacing of device is L, L=A+D, and when diaphragm works normally, agitating stroke back and forth is A+B, and because of L=A+D, repairing control
Device carries out repairing to hydraulic oil chamber after monitoring to need repairing, all diaphragm can be made to medium chamber side after the completion of each repairing
Its trigger will not trigger repairing controller when deviateing diaphragm in the normal work initial position of hydraulic oil side, therefore working on
With oil extraction controller, i.e. diaphragm works by non-equipotential flexural deformations form, because of special circumstances (such as hydraulic oil is reduced because of consumption)
Diaphragm is agitated to hydraulic oil side to when working normally initial position, and trigger triggers the work of repairing controller, repairing controller
The external hydraulic oil with oil compensation pressure is filled into hydraulic oil chamber in time, due to triggering repairing controller Shi Caijin in trigger
Row repairing, and diaphragm may continue to continue to move to hydraulic oil side far from the direction of diaphragm center plane when repairing, pass through repairing
The matching of speed, in oil replenishing process, diaphragm is at most agitated to the working limit position of hydraulic oil side, avoids diaphragm breakup, is triggered
After device returns between repairing controller and oil extraction controller, stop replenishing；Similarly, because of special circumstances (such as repairing is excessive) diaphragm
To side medium agitate to its trigger trigger oil extraction controller when (i.e. diaphragm is in the working limit position of side medium, because of L=A
+ D), oil extraction controller works and the section hydraulic oil of hydraulic oil chamber is discharged in time, avoids diaphragm breakup, trigger returns to benefit
After between oily controller and oil extraction controller, stop oil extraction；In this way, controlling the non-equipotential flexural deformations of diaphragm, make effectively
The effect for extending diaphragm service life is preferably ensured.
Above-mentioned technical proposal is further improved, the cylinder body includes the driving cylinder mutually fastened and medium cylinder, the driving
Cylinder and medium cylinder are respectively provided with annular and fasten plane and be fastened and connected by the way that two annular fastening planes are opposite, the edge of the diaphragm
It is folded in two annulars and fastens the sealed connection realized between plane with inboard wall of cylinder block, annular fastens plane and the mid-plane
It is coplanar.
In this way, the manufacture of cylinder body is easy to assembly, it is simple and reliable with the sealed connection of diaphragm.
Further, the hydraulic oil chamber and driving mechanism are set to driving cylinder, and driving mechanism includes piston, the piston
Be slidably coupled in the piston channel in driving cylinder, the piston channel is connected to the small end of restriction section, piston to diaphragm it
Between space be formed as the hydraulic oil chamber；The stroke directions of its trigger are same when the axial direction of piston channel is agitated with diaphragm
To the oil extraction controller and repairing controller are set to piston channel in one end of diaphragm, and the free end of the guide rod is prolonged
It protrudes into piston channel and makes the movement travel of trigger also in piston channel.
In this way, making the small end of agitating direction consistent and be directly connected to restriction section of the piston channel with diaphragm, without indirect
Space connects the small end of piston channel and restriction section, driving cylinder inner cavity to be manufactured process simpler, reduce manufacturing cost,
And the acting direction of piston agitates direction identical back and forth with diaphragm, and piston effect is more efficient in hydraulic oil power transmission, keeps away
The fluid energy losses for exempting from hydraulic oil reduce the energy consumption of pump.It is without indirect space and direct using piston channel and restriction section
The mode of connection, can also make the length of restriction section that can suitably lengthen, and play better protecting effect to diaphragm, because spacing is empty
Between the mode that connects need biggish space to guarantee the mobility and power transmission efficiency of hydraulic oil.
Further, the medium chamber be set to medium cylinder, in the stroke directions of trigger, medium chamber diaphragm from
Mid-plane is agitated to medium chamber to the stroke range of greatest limit position, and cross-sectional area is equal；The inlet valve
Group and dump valve are mounted on the casing wall of medium cylinder.
In this way, being not provided with limit section in medium chamber, medium is in the indoor good fluidity of dielectric cavity；Medium chamber can be complete
Portion is isometrical section, facilitates the manufacture of medium cylinder, and medium cylinder volume is smaller, occupies less space, and applicability is more preferable.
Further, the oil extraction controller includes oil extraction valve group, and the repairing controller includes repairing valve group.
In this way, improving the position of the implementation of benefit, oil extraction process, oil extraction controller and repairing controller for detection triggers
It sets.When position is arranged in trigger movement to repairing controller, repairing controller controls repairing valve group and opens simultaneously repairing, works as triggering
When device moves to oil extraction controller setting position, oil extraction controller controls oil extraction valve group and opens simultaneously oil extraction.Realize that the function has very
More prior arts, details are not described herein again.
Compared with prior art, the utility model has the following beneficial effects:
1, the utility model proposes the working forms of the non-equipotential flexural deformations of diaphragm, devise what diaphragm was agitated to two sides
Relationship between working limit position and working normally is begun, final position is set protects diaphragm to reach hydraulic oil provided with restriction section
Be not destroyed when chamber side working limit position, extend the service life of diaphragm, and by the repairing controller of Corresponding matching and
Oil extraction controller guarantees that the non-equipotential flexural deformations of diaphragm are all controlled in all cases, while diaphragm is in side medium working limit
Position is much smaller than the deformation limit of diaphragm itself, ensures the effect for extending diaphragm service life preferably；Meanwhile medium
In the indoor good fluidity of dielectric cavity, work efficiency is high for pump, and low energy consumption, strong applicability.
2, the cylinder body of the utility model manufactures, assembles simple and convenient, reduction manufacturing cost；The sealed connection of cylinder body and diaphragm
It is simple and reliable, it is also beneficial to the extension of diaphragm service life.
3, the piston channel of the utility model is directly connected to and the acting direction of piston and rousing back and forth for diaphragm with restriction section
Dynamic direction is identical, connects the form of piston channel and restriction section relative to biggish indirect space is used, piston effect is in liquid
Pressure oil power transmission it is more efficient, the fluid energy losses of hydraulic oil are small, reduce the energy consumption of pump.
Detailed description of the invention
The schematic diagram of the intrinsic diaphragm pump diaphragm equipotential flexural deformations control method of Fig. 1-；
The schematic diagram of the non-equipotential flexural deformations control structure of Fig. 2-specific embodiment diaphragm pump diaphragm；
Fig. 3-specific embodiment diaphragm is agitated to the schematic diagram of hydraulic oil side working limit position；
Fig. 4-specific embodiment diaphragm agitates to hydraulic oil side the schematic diagram for working normally initial position；
Fig. 5-specific embodiment diaphragm agitates to side medium the schematic diagram for working normally final position；
Fig. 6-specific embodiment diaphragm is agitated to the schematic diagram of side medium working limit position；
The position the E enlarged drawing of Fig. 7-Fig. 2；
The ranging implementation diagram of the non-equipotential flexural deformations control method of Fig. 8-specific embodiment diaphragm pump diaphragm；
What each arrow shown in attached drawing indicated be corresponding valve group at work, be not special by the flow direction of the valve group
Refer to valve group working condition corresponding with each attached drawing.
Wherein, cylinder body 1, restriction section 11, driving cylinder 12, medium cylinder 13, piston channel 14, diaphragm 2, mid-plane 21, liquid
Pressure oil chamber 3, oil extraction controller 31, repairing controller 32, priming valve 33, medium chamber 4 suck valve group 41, and valve group 42 is discharged,
Guide rod 5, trigger 51, piston 6, measuring tool tool 7.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Referring to fig. 2-6, the non-equipotential flexural deformations control structure of diaphragm pump diaphragm, including cylinder body 1 are equipped in the cylinder body 1
Diaphragm 2, the edge of diaphragm 2 are tightly connected and in the same plane with 1 inner wall of cylinder body, and the plane is mid-plane 21；Every
The side of film 2 is hydraulic oil chamber 3, and the other side is medium chamber 4, is communicated with sucking valve group 41 and row with the medium chamber 4
Valve group 42 out；Hydraulic oil chamber 3 is equipped with driving mechanism far from the side of diaphragm 2 to drive the hydraulic oil in hydraulic oil chamber 3
Diaphragm 2 is driven to agitate back and forth；1 inner wall of cylinder body has since the mid-plane 21 to 3 side of hydraulic oil chamber gradually undergauge
Restriction section 11；The geometric center of diaphragm 2 towards 3 side side of hydraulic oil chamber is equipped with guide rod 5, the free end direction of guide rod 5
Direction far from diaphragm 2 is simultaneously connected with trigger 51, is communicated with oil extraction controller 31 with the hydraulic oil chamber 3 and repairing controls
Device 32, the oil extraction controller 31 is between repairing controller 32 and diaphragm 2；
Referring to Fig. 3, diaphragm 2 is agitated from mid-plane 21 to hydraulic oil chamber 3 to working limit position, trigger 51
Stroke is C, because trigger 51 is connected to geometric center of the diaphragm 2 towards 3 side side of hydraulic oil chamber, the row of trigger 51
The stroke of the geometric center position of journey i.e. diaphragm 2；
Referring to fig. 4, diaphragm 2 is agitated from mid-plane 21 to hydraulic oil chamber 3 to normal work initial position, trigger
51 stroke is A and A < C；The distance of trigger 51 to mid-plane 21 is X；Repairing controller 32 to mid-plane 21 away from
From for Y and Y=X, i.e., in the stroke directions of trigger 51, the setting position of repairing controller 32 and diaphragm 2 are to hydraulic fluid chamber
Agitate the position to its trigger 51 when working normally initial position corresponding in room 3；
Referring to Fig. 5, diaphragm 2 is agitated from mid-plane 21 to medium chamber 4 to normal work final position, trigger 51
Stroke is B and B < A；
Referring to Fig. 6, diaphragm 2 is agitated from mid-plane 21 to medium chamber 4 to working limit position, the row of trigger 51
Journey is D and B < D < A；In the stroke directions of trigger 51, the setting position of oil extraction controller 31 and diaphragm 2 are to medium chamber
The position of 4 its trigger 51 when agitating to working limit position is corresponding, i.e. the spacing of repairing controller 32 and oil extraction controller 31
For L, L=A+D,
Wherein, the cylinder body 1 includes the driving cylinder 12 mutually fastened and medium cylinder 13, the driving cylinder 12 and medium cylinder 13
It is respectively provided with annular to fasten plane and be fastened and connected by the way that two annular fastening planes are opposite, the edge of the diaphragm 2 is folded in two
Annular fastens the sealed connection realized between plane with 1 inner wall of cylinder body, and referring to Fig. 7, annular fastens plane and the centre is flat
Face 21 is coplanar.In this way, the manufacture of cylinder body 1, assembly it is simple and convenient, it is simple and reliable with the sealed connection of diaphragm 2.The hydraulic fluid chamber
Room 3 and driving mechanism are set to driving cylinder 12, and driving mechanism includes piston 6, and the piston 6 is slidably coupled in driving cylinder 12
In piston channel 14, restriction section 11 agitates the shape to working limit position corresponding with diaphragm 2 towards hydraulic oil chamber 3；Piston
Channel 14 is connected to form funnel shaped with the small end of restriction section 11, and piston 6 to the space between diaphragm 2 is formed as the hydraulic oil
Chamber 3；The stroke directions of its trigger 51 are in the same direction when the axial direction of piston channel 14 is agitated with diaphragm 2, the oil extraction controller 31
Piston channel 14 is set in one end of diaphragm 2 with repairing controller 32, and the free end of the guide rod 5 extends into piston channel
14 and make the movement travel of trigger 51 also in piston channel 14.In this way, piston channel 14 and restriction section 11 be directly connected to and
The acting direction of piston 6 agitates direction identical back and forth with diaphragm 2, and piston 6 acts on the high-efficient of hydraulic oil power transmission, hydraulic oil
Fluid energy losses it is small, low energy consumption for pump；The length of restriction section 11 is longer, plays better protecting effect to diaphragm 2.It is described
Medium chamber 4 is set to medium cylinder 13, and in the stroke directions of trigger 51, the cross-sectional area of entire medium chamber 4 is equal；Institute
It states sucking valve group 41 and the casing wall that valve group 42 is set to medium cylinder 13 is discharged.In this way, good fluidity of the medium in medium chamber 4,
Medium cylinder 13 is simple to manufacture conveniently, and 13 volume of medium cylinder is smaller, occupies less space, and applicability is more preferable.The oil extraction control
Device 31 processed includes oil extraction valve group, and the repairing controller 32 includes repairing valve group.
Referring to Fig. 8, for convenient for further implementing, the determination process of stroke A, B, C and D are described below, can design
It is used when manufacture or assembly.The process of measurement stroke C includes: that a ranging tool 7, measuring tool tool 7 is arranged in 13 inner wall of medium cylinder
Laser range finder can be used, be arranged on the extended line that the geometric center position of diaphragm 2 is agitated back and forth, measuring distance of target point is diaphragm
2 towards 4 side side of medium chamber geometric center position, piston 6 is moved away to the pistons work initial position of diaphragm 2
(i.e. after dead point), not servicing fluids pressure oil in hydraulic oil chamber 3, applying design pressure in medium chamber 4 makes diaphragm 2 to hydraulic oil
Chamber 3 is agitated to 2 edge of diaphragm and is bonded with restriction section 11, i.e. working limit position of the diaphragm 2 in hydraulic oil side, detecting distance,
Because the distance of the detection initial point of ranging tool 7 to mid-plane 21 is fixed value, fixed value is subtracted according to detecting distance, can be counted
Calculate the value of C；
The process for measuring stroke A includes: to pass through the oiling being connected to the hydraulic oil chamber 3 on the basis of obtaining C value
Valve 33 injects hydraulic oil until the exhaust valve (not shown) row being connected to the hydraulic oil chamber 3 into hydraulic oil chamber 3
Priming valve 33 is closed when most gas and discharge hydraulic oil, after filling hydraulic oil into hydraulic oil chamber 3, closes priming valve 33 and row
Air valve；Because of hydraulic oil gravity, diaphragm 2 is bent to 4 side of medium chamber, and position, that is, diaphragm 2 after flexure is in hydraulic oil side
It works normally initial position and the value of A is calculated by 7 detecting distance of measuring tool tool；
The process of measurement stroke B includes: on the basis of obtaining the state of A value, by piston 6 by the piston work far from diaphragm 2
Make the pistons work final position (preceding dead point) that initial position (rear dead point) moves to close diaphragm 2, passes through and drive hydraulic oil chamber 3
Interior hydraulic oil drives diaphragm 2 to agitate to normal work final position and calculates the value of B by 7 detecting distance of measuring tool tool；
The process for obtaining stroke D includes: that can obtain the appearance that diaphragm 2 contains between A and B stroke after obtaining A, B and C value
Product is denoted as V1(i.e. diaphragm 2 from initial position is worked normally and agitates appearance corresponding to normal work the scratched overtravel of final position
Long-pending and piston 6 goes to the corresponding volume in preceding dead point from rear dead point), if the volume that diaphragm contains between C and D stroke is V2
(i.e. diaphragm 2 agitates volume corresponding to the scratched overtravel in side medium working limit position from hydraulic oil side working limit position)；
Enabling V2=k × V1, k is coefficient and k >=1.35, can obtain D value, and it is also an interval value that D, which refers to, can pass through formula meter
It calculates or three-dimensional modeling show that obtained D value should be able to meet the condition of B < D < A and k >=1.35, otherwise need to adjust B or C value,
Until the D value taken is able to satisfy B < D < A and k >=1.35.When adjusting C value, because restriction section 11 and diaphragm 2 are towards hydraulic fluid chamber
Room 3 agitates the shape to working limit position corresponding, so adjustment C value, while the planform of restriction section 11 is namely adjusted,
When implementation, the adjustment for carrying out restriction section 11 can be reprocessed on material object, or adjusts setting for restriction section 11 in the design process
Meter manufacture size.
Wherein, in later period normal use process, priming valve 33 is normal closed gate, is needing replacing hydraulic oil or other are different
Also openable use when reason condition needs.The assembly and disassembly of ranging tool 7 can be by implementing when assembly and disassembly medium cylinder 13, can also be in medium
Special window is arranged on cylinder 13 to carry out assembly and disassembly or assembled and disassembled and (sealed when pressure by sucking valve group 41, discharge 42 position of valve group
Close), the utility model is not specifically limited.
Referring to fig. 2-6, the non-equipotential flexural deformations control structure of the diaphragm pump diaphragm of the utility model, by piston 6 in work
Path increment and diaphragm 2 in plug channel 14 agitate the Corresponding matching of stroke, the work deformation quantity that diaphragm 2 can be made to agitate to side medium
Less than the work deformation quantity agitated to hydraulic oil side, i.e. B < A, the non-equipotential flexural deformations working forms of diaphragm 2 are realized；When every
When film 2 is agitated to hydraulic oil side, the deformation of diaphragm 2 is restricted the limitation of section 11 to protect the edge of diaphragm 2, and diaphragm 2 will not
It is destroyed because of abnormal deformation, when diaphragm 2 is agitated to side medium, due to B < D < A, the work shape that diaphragm 2 is agitated to side medium
Variable is relatively small, and the root and edge of diaphragm 2 would not generate excessive abnormal deformation, also reduces diaphragm 2 to medium
The flexural stress and tensile stress that chamber 4 is born when agitating to working limit position, protect diaphragm 2 also effectively in side medium
Shield；In this way, movement deformation of the diaphragm 2 to two sides is all restricted protection, effectively extend the service life of diaphragm 2；Meanwhile it designing
The setting position of repairing controller 32 and oil extraction controller 31 guarantees that diaphragm 2 agitates not to two sides under any circumstance
Meeting ultralimit deformation quantity, wherein the setting position of repairing controller 32 and diaphragm 2 are agitated to normal work to hydraulic oil side and originated
Its 51 position of trigger is corresponding when position, i.e. Y=X, and the setting position of oil extraction controller 31 and diaphragm 2 are to medium chamber 4
The position of its trigger 51 is corresponding when agitating to working limit position, i.e. L=A+D；In this way, when the flexure of diaphragm 2 to normal work
When initial position, illustrate 3 oil starvation of hydraulic oil chamber, thus trigger 51 trigger repairing controller 32 by repairing valve group open and incite somebody to action
Outside fills into hydraulic oil chamber 3 with the hydraulic oil of oil compensation pressure in time, and piston 6 has run to rear dead point at this time, by repairing
Afterwards, piston 6 is run to medium chamber 4 pushes diaphragm 2 to bend in the same direction, in the process, mends if 3 leakage rate of hydraulic oil chamber is less than
Oil mass, then when piston 6 runs to preceding dead-centre position, then the flexure of diaphragm 2 will be more than to work normally final position, even up to every
Film 2 triggers oil extraction in the working limit position of side medium, and in backhaul next time, piston 6 runs to rear dead-centre position again
When, diaphragm 2, which will not arrive at, works normally initial position, because of D < A, then diaphragm 2 is exactly in non-equipotential flexural deformations form
Lower work.If 3 leakage rate of hydraulic chamber is more than that (i.e. topping up of oil is small for topping up of oil during repairing metacneme 2 is bent to medium chamber 4
In leakage rate), then diaphragm 2, at dead-centre position before piston 6 is run to, diaphragm 2 does not exceed normal work final position, and
Diaphragm 2 will reach again when backhaul works normally initial position and triggers repairing, because of B < A, diaphragm 2 is also non-etc.
It works under the flexural deformations form of position.The non-equipotential flexural deformations of diaphragm 2 are controlled, and the effect for extending 2 service life of diaphragm is obtained
It is ensured to better.
When implementation, those skilled in the art be will be appreciated that, what the shapes of materials itself that above-mentioned stroke C should also be less than diaphragm 2 determined
The stroke of its geometric center position when agitating from mid-plane 21 to its elastic deformation extreme position.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (5)
1. the non-equipotential flexural deformations control structure of diaphragm pump diaphragm, including cylinder body, the cylinder body is interior to be equipped with diaphragm, the edge of diaphragm
It is tightly connected with inboard wall of cylinder block and in the same plane, the plane is mid-plane；The side of diaphragm is hydraulic oil chamber,
The other side is medium chamber, is communicated with sucking valve group and discharge valve group with the medium chamber；Hydraulic oil chamber is far from diaphragm
Side is equipped with driving mechanism and drives diaphragm to agitate back and forth to drive the hydraulic oil in hydraulic fluid chamber room；Inboard wall of cylinder block has from institute
It states mid-plane and starts restriction section to hydraulic oil chamber side gradually undergauge；Diaphragm is several towards hydraulic oil chamber side side
What center is equipped with guide rod, and the free end of guide rod is directed away from the direction of diaphragm and is connected with trigger, with the hydraulic oil chamber
It is communicated with oil extraction controller and repairing controller；
It is characterized by: diaphragm is agitated from mid-plane to hydraulic oil chamber to working limit position, the stroke of trigger is
C,
Diaphragm is agitated from mid-plane to hydraulic oil chamber to initial position is worked normally, and the stroke of trigger is A；
Diaphragm is agitated from mid-plane to medium chamber to final position is worked normally, and the stroke of trigger is B,
Diaphragm is agitated from mid-plane to medium chamber to working limit position, and the stroke of trigger is D, B < D < A < C；
In the stroke directions of trigger, the setting position of repairing controller and diaphragm are agitated to hydraulic oil chamber to normal work
The position of its trigger is corresponding when initial position, and the setting position of oil extraction controller and diaphragm are agitated to medium chamber to work pole
The position of its trigger is corresponding when extreme position.
2. the non-equipotential flexural deformations control structure of diaphragm pump diaphragm according to claim 1, it is characterised in that: the cylinder body packet
The driving cylinder mutually fastened and medium cylinder are included, the driving cylinder and medium cylinder are respectively provided with annular and fasten plane and by two annulars
It fastens plane to be fastened and connected relatively, the edge of the diaphragm is folded in two annulars and fastens between planes to realize and inboard wall of cylinder block
It is tightly connected, it is coplanar with the mid-plane that annular fastens plane.
3. the non-equipotential flexural deformations control structure of diaphragm pump diaphragm according to claim 2, it is characterised in that: the hydraulic oil
Chamber and driving mechanism are set to driving cylinder, and driving mechanism includes piston, and the piston is slidably coupled to the piston in driving cylinder
In channel, the piston channel is connected to the small end of restriction section, and piston to the space between diaphragm is formed as the hydraulic fluid chamber
Room；The stroke directions of its trigger are in the same direction when the axial direction of piston channel is agitated with diaphragm, the oil extraction controller and repairing control
Device is set to piston channel in one end of diaphragm, and the free end of the guide rod extends into piston channel and makes the movement of trigger
Stroke is also in piston channel.
4. the non-equipotential flexural deformations control structure of diaphragm pump diaphragm according to claim 2, it is characterised in that: the dielectric cavity
Room is set to medium cylinder, and in the stroke directions of trigger, medium chamber is agitated from mid-plane to medium chamber to most in diaphragm
In the stroke range of big extreme position, cross-sectional area is equal；The sucking valve group and dump valve are mounted on the cylinder of medium cylinder
Wall.
5. the non-equipotential flexural deformations control structure of diaphragm pump diaphragm according to claim 2, it is characterised in that: the oil extraction control
Device processed includes oil extraction valve group, and the repairing controller includes repairing valve group.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111656015A (en) * | 2019-06-28 | 2020-09-11 | 深圳市大疆创新科技有限公司 | Diaphragm pump, sprinkling system and unmanned aerial vehicle |
| CN112483483A (en) * | 2020-11-26 | 2021-03-12 | 河南工业职业技术学院 | Diaphragm energy storage ware of intelligence |
| CN112502929A (en) * | 2020-11-30 | 2021-03-16 | 强大泵业集团行唐泵业有限公司 | Hydraulic diaphragm metering pump |
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2018
- 2018-10-25 CN CN201821738602.7U patent/CN208858535U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111656015A (en) * | 2019-06-28 | 2020-09-11 | 深圳市大疆创新科技有限公司 | Diaphragm pump, sprinkling system and unmanned aerial vehicle |
| WO2020258267A1 (en) * | 2019-06-28 | 2020-12-30 | 深圳市大疆创新科技有限公司 | Diaphragm pump, spraying system, and unmanned aerial vehicle |
| CN112483483A (en) * | 2020-11-26 | 2021-03-12 | 河南工业职业技术学院 | Diaphragm energy storage ware of intelligence |
| CN112483483B (en) * | 2020-11-26 | 2023-03-31 | 河南工业职业技术学院 | Diaphragm energy storage ware of intelligence |
| CN112502929A (en) * | 2020-11-30 | 2021-03-16 | 强大泵业集团行唐泵业有限公司 | Hydraulic diaphragm metering pump |
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