CN207244577U - Hydraulic-operated Automatic Gate water pressure buffer - Google Patents
Hydraulic-operated Automatic Gate water pressure buffer Download PDFInfo
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- CN207244577U CN207244577U CN201720769183.2U CN201720769183U CN207244577U CN 207244577 U CN207244577 U CN 207244577U CN 201720769183 U CN201720769183 U CN 201720769183U CN 207244577 U CN207244577 U CN 207244577U
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- 239000000872 buffer Substances 0.000 title claims abstract description 167
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 230000003139 buffering effect Effects 0.000 claims abstract description 32
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000000806 elastomer Substances 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 description 17
- 230000035939 shock Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 4
- 238000009527 percussion Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 240000006829 Ficus sundaica Species 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
Hydraulic-operated Automatic Gate water pressure buffer, belongs to hydraulic machine design field.Including the cushion dashpot with cavity, the piston with piston rod, cushion dashpot cylinder mouth is downward, piston is installed in cushion dashpot cavity, guide way is equipped between piston rod and the cushion dashpot cavity wall, it is characterized in that the piston is equipped with cavity, the cavity accent is towards cushion dashpot cylinder bottom, the cushion dashpot cylinder bottom is installed with the buffer body being used cooperatively with piston, which is elastomer or buffer cap；The water pressure buffer is installed on gate or flap valve door leaf, buffer and the integral type structure of door body；Piston bears impact, is formed and buffered by buffer body, and buffering terminates to open again behind the door, and piston automatically resets under Gravitative Loads.The water pressure buffer of the utility model is simple in structure, makes, is easy for installation；Realize that gate or flap valve hit after buffering and automatically reset, can reliably avoid hydraulic and hydroelectric engineering cleaning door from hitting accident.
Description
Technical field
The utility model is a kind of new water pressure buffer, and water pressure buffer is the reality of Elementary Fluid Mechanics achievement in research
Using belonging to hydraulic machine design field.
Background technology
In hydraulic and hydroelectric engineering, gate, flap valve are the blocking devices that shuts off.The particularly gate of large pumping station cleaning door and bat
Door, occurs flying ease (unconstrained reversing) when the stop that is limited pumps or flies ease time overlength, there is the requirement of Rapid door closer.But such as
When fruit gate or flap valve close on closing, falling speed or angular velocity of rotation are excessive, certainly will produce shock, may cause engineering or set
Standby accident.Hit for harmfulness is alleviated or avoided, installation water pressure buffer is necessary.
Utility model patent filed in patent applicant Hunan Liwei Hydraulic Equipment Co., Ltd. 2008 year 08 month 08 day
《Energy-saving free side-turning type flap valve buffering mechanism》, which is：200820054029.8.The utility model is special
Profit provides a kind of energy-saving free side-turning type flap valve buffering dress being used for water pump station water outlet flap valve, can reducing impact
Put, which has the following disadvantages：1. apllied buffer unit is only applicable in small and medium-sized pumping station side-turning type flap valve, do not apply to large-scale
Pumping plant suspension type flap valve, is not suitable for gate yet；2. critical piece cylinder barrel of buffer unit etc. is not mounted on door leaf, but
It is installed on facility outdoors；3. the cylinder barrel of buffer unit is only single cylinder, it is " cavate " mechanism, does not have the work of " bicavate "
With；4. anti-collision energy absorption is only spilled water hole effect, no explanation using elastomer compression energy-absorbing；5. buffer unit is without cylinder cylinder pressure
With the explanation of door body movement velocity relation, no structural stress analysis and design considerations.Therefore,《Energy-saving free side-turning type flap valve
Buffer unit》In addition to the cleaning door and less project scale of specific pattern, no application conditions.
Utility model content
The purpose of this utility model is in view of the above shortcomings of the prior art, there is provided a kind of Hydraulic-operated Automatic Gate hydraulic pressure buffering
Device, which is mainly used for stop gate and pump-station flap valve in hydraulic and hydroelectric engineering and closes a buffering hit, as water
Work metal structure anti-collision energy absorption device.
The purpose of this utility model is achieved through the following technical solutions：Hydraulic-operated Automatic Gate water pressure buffer, including band
The cushion dashpot of cavity, the piston with piston rod, the piston are installed in cushion dashpot cavity, the piston rod and cushion dashpot chamber
Guide way is equipped between wall, it is characterized in that, the cushion dashpot cylinder mouth is downward, and cushion dashpot cylinder bottom, which is installed with to coordinate with piston, to be made
Buffer body, the buffer body are elastomer or buffer cap, and the buffer cap is equipped with cavity, the cavity accent and pistons end phase
It is right；The water pressure buffer is installed on gate or flap valve door leaf, buffer and the integral type structure of door body；Work with piston rod
Plug bears impact, is formed and buffered by buffer body, and buffering terminates to open again behind the door, and the piston with piston rod is under Gravitative Loads
Automatically reset.
Further, the elastomer is solid elastomeric sphere or stainless steel spring, and the piston, piston rod surface are axial
Equipped with return flume.
Further, the pistons end is equipped with cavity, and the cavity accent is towards cushion dashpot cylinder bottom.
Further, the pistons end is equipped with truncated cone-shaped protrusion, which is hollow structure, and the raised cavity is with delaying
Cylinder cavity is rushed to communicate, and raised cavity accent is opposite with buffer cap cavity accent, raised outside diameter is by its cavity accent to bottom of chamber
Become larger, the internal diameter of buffer cap cavity accent is equal with raised maximum outside diameter.
Further, the buffer cap cavity inside diameter is tapered into by accent to bottom of chamber, and the pistons end is equipped with cylinder
Shape is raised, which is hollow structure, which communicates with cushion dashpot cavity, and raised cavity accent and buffer cap
Cavity accent is opposite, and the minimum diameter of buffer cap cavity is equal with raised outside diameter.
Further, the cushion dashpot cylinder bottom is equipped with spilled water hole, and the spilled water hole is by buffer cap inner cavity with connecting outside cushion dashpot
It is logical；The guide way is again provided with spilled water hole, which connects cushion dashpot cavity with cushion dashpot outside.
Further, the piston is equipped with cavity, and the buffer cap cavity accent is opposite with piston cavity accent；It is described slow
It is truncated cone-shaped structure to rush cap, and the outside diameter of buffer cap is down become larger by its cavity accent, and the piston cavity is tubular
Structure, the maximum outside diameter of buffer cap are equal with the cavity inside diameter of piston.
Further, the cushion dashpot cylinder bottom is equipped with spilled water hole, and the spilled water hole is by buffer cap cavity with connecting outside cushion dashpot
It is logical.
Further, the piston rod end is equipped with roller body.
Further, the buffer cap is connected by rotating hinge with cushion dashpot cylinder bottom.
The utility model is a kind of single-chamber type or bicavate buffer, its principle is to utilize the water with certain cavity volume
Cylinder, cylinder is interior to place certain volume elastomer or with spilled water hole.Water pressure buffer is installed on gate or flap valve door leaf, forms one
Structure.During shock, gate linear motion kinetic energy or flap valve are revolved by elastomer compression in cylinder or spilled water hole sluicing effect
Turn motion energy, be converted to elastomer compressible deformable energy or the energy consumption that sluices in water vat, realize anti-collision energy absorption.
Automatically reset on buffer：When elastomer scheme is placed in cylinder body, in-cylinder pressure discharges immediately after shock,
Elastomer restPoses；Elastomer is placed in cylinder body or with spilled water hole, hit and terminate to open again behind the door, trip rod is being conducted oneself with dignity
Effect is lower to reply original state.
The water pressure buffer of the utility model is simple in structure, makes, is easy for installation；Realize automatic after gate or flap valve buffering
Reset, can reliably avoid hydraulic and hydroelectric engineering cleaning door from hitting accident.
Brief description of the drawings
Fig. 1 is the structure diagram of water pressure buffer in embodiment one；
Fig. 2 is the structure diagram of water pressure buffer in embodiment two；
Fig. 3 is the structure diagram of water pressure buffer in embodiment three；
Fig. 4 is the structure diagram of water pressure buffer in example IV；
Fig. 5 is the structure diagram of water pressure buffer in embodiment five；
Fig. 6 is the structure diagram of water pressure buffer in embodiment six；
Fig. 7 is single-chamber type buffer door body rotational angular velocity and pressure change graph；
Fig. 8 is bicavate buffer door body rotational angular velocity and pressure change graph；
In figure：1 cushion dashpot, 2 piston rods, 3 pistons, 4 guide ways (cylinder cap), 5 cushion dashpot cylinder bottoms, 6 elastomers, 7 buffer caps,
8 buffer cap cavitys, 9 return flumes, 10 piston cavities, 11 truncated cone-shapeds protrusion, 12 truncated cone-shaped protrusion cavitys, 13 cylindrical protrusions, 14
Cylindrical protrusions cavity, 15 spilled water holes, 16 roller bodies, 17 rotating hinges are secondary, 18 door body.
Embodiment
Hydraulic-operated Automatic Gate water pressure buffer is installed on gate or flap valve door leaf, buffer and the integral type structure of door body；
Piston with piston rod bears impact, is formed and buffered by buffer body, and buffering terminates to open again behind the door, the work with piston rod
Plug automatically resets under Gravitative Loads.Below by six embodiments and the utility model is described in further detail with reference to attached drawing.
1. embodiment one：One cavate buffer of elastomer is placed in cylinder body
Compares figure 1, Hydraulic-operated Automatic Gate water pressure buffer, including the cushion dashpot 1 with cavity, the piston 3 with piston rod 2
(impacting body), cushion dashpot cylinder mouth is downward, and piston is installed in cushion dashpot cavity, is equipped with and is oriented between piston rod and cushion dashpot cavity wall
(i.e. cylinder cap, guide way are hollow cylindrical to body 4, and its one end is equipped with overlap, and overlap is placed in cylinder mouth end, and the guide way other end is put
In cushion dashpot inner cavity, can prevent piston from skidding off), piston is equipped with cavity 10, and the cavity accent is towards cushion dashpot cylinder bottom, cushion dashpot
Cylinder bottom is installed with the elastomer being used cooperatively with piston, which is solid elastomeric sphere 6, piston, piston rod surface
It is axially arranged with return flume 9, return flume plays sluicing.
Gate or flap valve close when hitting, although door body is contacted with the impacting body of buffer, will not form rigid body and touch
Hit.With impacting body movement under force, water body is compressed in cushion dashpot, and cylinder elastomer produces " volume compression " suction because being pressurized
Can so that water body pressure is unlikely excessive, realizes reliable buffering.Because cushion dashpot oral area is downward, once buffers pump assembly and restart
Afterwards, piston (impacting body) automatically resets under Gravitative Loads.
Similar Fig. 1 utilizes the application of elastomer buffering, and elastomer can also use stainless steel spring.
2. embodiment two：The two cavate buffers with spilled water hole Yu cupulate buffer cap
Compares figure 2, buffer are installed in door body 18.Hydraulic-operated Automatic Gate water pressure buffer, including the cushion dashpot with cavity
1st, the piston 3 (impacting body) with piston rod 2, piston are installed in cushion dashpot cavity, are set between piston rod and cushion dashpot cavity wall
Having guide way 4, (i.e. cylinder cap, guide way are hollow cylindrical, and its one end is equipped with overlap, and overlap is placed in cylinder mouth end, and guide way is another
One end is placed in cushion dashpot inner cavity, can prevent piston from skidding off).Cushion dashpot cylinder bottom is installed with the buffering being used cooperatively with piston
Body, the buffer body are buffer cap 7, and buffer cap is equipped with cavity 8, and the cavity accent is opposite with pistons end.
Pistons end is equipped with truncated cone-shaped protrusion 11, which is hollow structure, the raised cavity 12 and cushion dashpot cavity
Communicate, and raised cavity accent is opposite with buffer cap cavity accent, raised outside diameter is become larger by its cavity accent to bottom of chamber,
The internal diameter of buffer cap cavity accent is equal with raised maximum outside diameter.The height of truncated cone-shaped protrusion is less than or equal to buffer cap cavity
Depth, equally, can set the return flume 9 of auxiliary sluicing in piston face.
Cylinder bottom is equipped with spilled water hole 15, and the spilled water hole is by buffer cap inner cavity with being connected outside cushion dashpot.Guide way is again provided with
Cushion dashpot cavity is connected, is oriented between being left between body sidewall and cylinder body cavity wall by spilled water hole 15, the spilled water hole with cushion dashpot outside
Gap, the spilled water hole are placed at overlap.
Gate or flap valve close when hitting, and with impacting body movement under force, water body is compressed in cushion dashpot, passes through sluicing
Hole sluices, and release energy realization buffering.To make full use of space, piston body is made hollow (i.e. truncated cone-shaped protrusion hollow structure), storage
Nonresident portion water body, together with cup-shaped cavity outside piston and the water body in cupulate buffer cap, produces cushioning effect jointly, at this moment cylinder body,
Two spilled water holes of cylinder cap also concur, in-cylinder pressure p.When piston motion stroke x reaches and exceeds piston body and buffering
The distance between cap h1Afterwards, water-storage pressure chamber by one becomes two (two chambers is that cushion dashpot inner cavity and truncated cone-shaped are convex respectively
Play cavity, the chamber that buffer cap cavity is formed), two cavity pressure p1With p2。
3. embodiment three：The two cavate buffers with spilled water hole Yu loop buffer cap
Compares figure 3, Hydraulic-operated Automatic Gate water pressure buffer, including the cushion dashpot 1 with cavity, the piston 3 with piston rod 2
(impacting body), cushion dashpot cylinder mouth is downward, and piston is installed in cushion dashpot cavity, is equipped with and is oriented between piston rod and cushion dashpot cavity wall
(i.e. cylinder cap, guide way are hollow cylindrical to body 4, and its one end is equipped with overlap, and overlap is placed in cylinder mouth end, and the guide way other end is put
In cushion dashpot inner cavity, it can prevent piston from skidding off).Cushion dashpot cylinder bottom is installed with the buffer body being used cooperatively with piston, should
Buffer body is loop buffer cap 7, and buffer cap is equipped with cavity 8, and the cavity accent is opposite with pistons end.
Buffer cap cavity inside diameter is tapered into by accent to bottom of chamber, and pistons end is equipped with cylindrical protrusions 13, which is
Hollow structure, the raised cavity 14 are communicated with cushion dashpot cavity, and raised cavity accent is opposite with buffer cap cavity accent,
The minimum diameter of buffer cap cavity is equal with raised outside diameter.The height of cylindrical protrusions is less than or equal to buffer cap cavity depth,
Equally, the return flume 9 of auxiliary sluicing can be set in piston face.
Cylinder bottom is equipped with spilled water hole 15, and the spilled water hole is by loop buffer cap inner cavity with being connected outside cushion dashpot.Guide way is same
Equipped with spilled water hole 15, which connects cushion dashpot cavity with cushion dashpot outside, is oriented between body sidewall and cylinder body cavity wall and stays
There is gap, which is placed at overlap.
Gate or flap valve close a percussion movement, water body compression in cushion dashpot, and spilled water hole sluices the realization buffering class that releases energy
With embodiment two.It is with two difference of embodiment：After piston motion stroke reaches and exceeds loop buffer cap, although storage
Water pressure chamber by one becomes two, and (two chambers are cushion dashpot inner cavity and cylindrical protrusions cavity, buffer cap cavity shape respectively
Into a chamber), but two pressure chambers not fully separate, therefore two cavity pressure p1、p2Without excessive difference.
4. example IV：The two cavate buffers with spilled water hole Yu boss shape buffer body
Compares figure 4, Hydraulic-operated Automatic Gate water pressure buffer, including the cushion dashpot 1 with cavity, the piston 3 with piston rod 2
(impacting body), cushion dashpot cylinder mouth is downward, and piston is installed in cushion dashpot cavity, is equipped between piston rod and the cushion dashpot cavity wall
(i.e. cylinder cap, guide way are hollow cylindrical to guide way 4, and its one end is equipped with overlap, and overlap is placed in cylinder mouth end, and guide way is another
End is placed in cushion dashpot inner cavity, can prevent piston from skidding off).Cushion dashpot cylinder bottom is installed with the buffering being used cooperatively with piston
Body, the buffer body are cupulate buffer cap 7, and buffer cap is equipped with cavity 8, and the cavity accent is opposite with pistons end.
Piston is equipped with cavity 10, and buffer cap cavity accent is opposite with piston cavity accent；Buffer cap is truncated cone-shaped structure, is delayed
The outside diameter for rushing cap is down become larger by its cavity accent, and piston cavity is tube-shaped structure, the maximum outside diameter of buffer cap with
The cavity inside diameter of piston is equal.
Cushion dashpot cylinder bottom is equipped with spilled water hole 15, and the spilled water hole is by buffer cap cavity with being connected outside cushion dashpot.Truncated cone-shaped is delayed
Rush cap and be highly less than or equal to piston cavity depth, equally, the return flume 9 of auxiliary sluicing can be set in piston face.
Gate or flap valve close a percussion movement, water body compression in cushion dashpot, and spilled water hole sluices, and release energy realization buffering class
With embodiment two.It is with two difference of embodiment：After piston motion stroke reaches and exceeds buffer body, embodiment two is
Piston body protrudes into cupulate buffer cap, and the present embodiment is that boss shape buffer body (i.e. the cupulate buffer cap of truncated cone-shaped structure) protrudes into piston
Cavity, two pressure in pressure cavity p1And p2Close to embodiment two, (two chambers are cushion dashpot inner cavity and piston respectively to changing rule
The chamber that cavity, buffer cap cavity are formed).
5. embodiment five：Two cavate buffer of impacting body belt wheel cylindricality impacting body
Compares figure 5, Hydraulic-operated Automatic Gate water pressure buffer, including the cushion dashpot 1 with cavity, the piston 3 with piston rod 2
(impacting body), cushion dashpot cylinder mouth is downward, and piston is installed in cushion dashpot cavity, is equipped between piston rod and the cushion dashpot cavity wall
(i.e. cylinder cap, guide way are hollow cylindrical to guide way 4, and its one end is equipped with overlap, and overlap is placed in cylinder mouth end, and guide way is another
End is placed in cushion dashpot inner cavity, can prevent piston from skidding off).Cushion dashpot cylinder bottom is installed with the buffering being used cooperatively with piston
Body, the buffer body are cupulate buffer cap 7, and buffer cap is equipped with cavity 8, and the cavity accent is opposite with pistons end.
Piston is equipped with cavity 10, and buffer cap cavity accent is opposite with piston cavity accent；Buffer cap is truncated cone-shaped structure, is delayed
The outside diameter for rushing cap is down become larger by its cavity accent, and piston cavity is tube-shaped structure, the maximum outside diameter of buffer cap with
The cavity inside diameter of piston is equal.
Cushion dashpot cylinder bottom is equipped with spilled water hole 15, which connects buffer cap cavity with cushion dashpot outside, tailpiece of the piston rod
Portion is equipped with roller body 16.Truncated cone-shaped buffer cap is highly less than or equal to piston cavity depth, equally, can be set in piston face auxiliary
Help the return flume 9 of sluicing.
Gate or flap valve close a percussion movement, water body compression in cushion dashpot, and spilled water hole sluices, and the realization buffering that releases energy is same
Example IV.It is with example IV difference：When for flap valve, at this moment impacting body passes through roller with the presence of peripheral force
Body, which rotates, can avoid hitting rod bending damage.
6. embodiment six：Two cavate buffers of the cushion dashpot with rotating hinge
Compares figure 6, Hydraulic-operated Automatic Gate water pressure buffer, including the cushion dashpot 1 with cavity, the piston 3 with piston rod 2
(impacting body), cushion dashpot cylinder mouth is downward, and piston is installed in cushion dashpot cavity, is equipped between piston rod and the cushion dashpot cavity wall
(i.e. cylinder cap, guide way are hollow cylindrical to guide way 4, and its one end is equipped with overlap, and overlap is placed in cylinder mouth end, and guide way is another
End is placed in cushion dashpot inner cavity, can prevent piston from skidding off).Cushion dashpot cylinder bottom is installed with the buffering being used cooperatively with piston
Body, the buffer body are cupulate buffer cap 7, and buffer cap is equipped with cavity 8, and the cavity accent is opposite with pistons end.
Piston is equipped with cavity 10, and buffer cap cavity accent is opposite with piston cavity accent；Buffer cap is truncated cone-shaped structure, is delayed
The outside diameter for rushing cap is down become larger by its cavity accent, and piston cavity is tube-shaped structure, the maximum outside diameter of buffer cap with
The cavity inside diameter of piston is equal.
Cushion dashpot cylinder bottom is equipped with spilled water hole 15, and by buffer cap cavity with being connected outside cushion dashpot, buffer cap leads to the spilled water hole
Rotating hinge pair 17 is crossed to be connected with cushion dashpot cylinder bottom.Truncated cone-shaped buffer cap is highly less than or equal to piston cavity depth, equally, can be
Piston face sets the return flume 9 that auxiliary sluices.
Gate or flap valve close a percussion movement, water body compression in cushion dashpot, and spilled water hole sluices, and release energy realization buffering class
Same example IV.When for flap valve, impacting body avoids hitting the same embodiment of effect that rod bending damages with the presence of peripheral force
Five.It is with five difference of embodiment：Rotating hinge pair is arranged at cushion dashpot bottom, avoids acting through for shock rod bending damage from turning
Dynamic hinge is secondary to be realized.
7. application
The utility model buffer falls a movement buffering for gate：Gate fall for linear motion, Rapid door closer have compared with
Big impact, door bottom set water pressure buffer to can absorb Impact energy, realize buffering, avoid engineering or equipment from endangering.Gate
Buffering can use any one buffer in Fig. 1, Fig. 2, Fig. 3, Fig. 4.
The utility model buffer falls a movement buffering for flap valve：Flap valve falling motion is rotary motion, and flap valve is stopping
Reversing upstream stage to close Men Shibi after pump has larger impact, in terms of anti-collision energy absorption, with Fig. 1~Fig. 6 by design
Any one buffer can absorb Impact energy, realize buffering, avoid engineering or equipment from endangering.
But flap valve is when hitting, impacting body with the presence of peripheral force, for avoid impacting body stress complicated so that damage, it is necessary to
Rolling column is installed additional on impacting body using such as Fig. 5 or such as Fig. 6 sets rotating hinge in cushion dashpot bottom, should as suitable scheme
First choice uses the scheme of Fig. 5 or Fig. 6.
8. water pressure buffer inner gauge calculates method
The working mechanism of the utility model water pressure buffer is gate or flap valve mechanical energy, distortional elastomer energy, sluicing water
The transmitting and converting of power energy.In gate falling motion, there is kinetic energy mv2/2(m：Corresponding to the door body quality of buoyant weight, v：Movement speed
Degree)；Flap valve is closed in a rotary motion, has kinetic energy J ω2/2(J：Rotary inertia, ω：Angular velocity of rotation)；Gate or flap valve are hit
After hitting, elastomer produces compressible deformable energy p Δ V/2 (p in cylinder：Interior pressure, Δ V：Volume change)；Sluice energy consumption pQt (p：
Interior pressure, Q：Discharge, t：Time).Pump station engineering water pump shut down after through rotating forward positive stream, rotate forward adverse current, reverse adverse current three
A stage, cleaning door start to fall in the first stage, and second stage or phase III close door when starting.It is quantitative to calculate and judge slow
Effect is rushed to be determined according to principle of energy balance.
1 single-chamber buffer of compares figure, cylinder is interior to place elastomer, no spilled water hole situation, the utility model water pressure buffer cylinder
Interior maximum pressure p (Pa) is weighed the effect of F (N) and door body motion energy by the equivalent force P OR gates for being transformed into rum point (piston rod)
Power two parts.Maximum pressure is respectively in two kinds of impact events cylinders of the flap valve of rotational motion and the gate of falling motion：
P=P/S+ [(P/S)2+E·Jω2/V]1/2 (1)
P=F/S+ [(F/S)2+Emv2/V]1/2 (2)
In formula：V is elastomer volume (m3), E is elastic volume compressibility (N/m2).Maximum pressure is to quantitatively judge buffering in cylinder
The foundation of effect, is to provide the foundation of door hinge, gate seat and load carrier design.
Buffer is with the presence of spilled water hole and counts and during the compressibility of water body, instantaneous pressure calculation formula in buffer retention volume：
P={ [(b2-4c)1/2-b]/2}1/2 (3)
B=KKfΔt/(2V0), c=bQ0/Kf-p0-KΔV/V0
P in formula：Instantaneous pressure (Pa) in buffer；Δt：Period (s)；ΔV：Buffer inner volume transient change amount
(m3)；p0：Instantaneous pressure (Pa) before Δ t in buffer；K：The water body compressed coefficient (kg/m2), K ≈ 2.04 × 109Pa；Kf：Flow
Coefficient, Kf≈ F/30, F：Spilled water hole effective area (m2)。
Compares figure 2, bicavate buffer trip rod displacement distance x≤h1When, piston area S=π D2/4；x>h1When, S1ByBecome larger toS2By π (D2-D1 2)/4 become as low asFirst chamber and the second cavity pressure are public
Formula：
p1=K [Δ V1-Δt(Q10+Q1)/2]/V10+p10 (4)
p2=K [Δ V2+Δt(Q10+Q1)/2-Δt(Q20+Q2)/2]/V20+p20 (5)
In formula：p10、p20：First chamber and the second cavity pressure (Pa) respectively at the beginning of the period；Q10、Q20：Respectively at the beginning of the period
One chamber and the second chamber discharge (m3/s)；Q1、Q2：Respectively the first chamber of calculation interval and the second chamber discharge (m3/s)；
V10、V20：First chamber and the second chamber water body volume (m respectively at the beginning of the period3)；ΔV1、ΔV2：Respectively the first chamber of calculation interval with
Second chamber sluicing volume (m3)；Δt：Period (s).
The utility model except proposing that gate and flap valve water pressure buffer inner gauge calculate method, and develop accordingly calculate it is soft
Part.Given Hydraulic Power Unit, door body characteristic and engineering characteristics value, given termination of pumping close an instant movement speed, can calculate and try to achieve cylinder
Internal pressure p or p1、p2, including maximum and the process that changes with time.
Flap valve cushion at collision structure design separately has special requirement.In the short time interval that flap valve is hit, impact is except circumferential
Amount is outer, still has radial component, radial component causes trip rod to have tangential movement.The utility model proposes two kinds to avoid trip rod from cutting
Endangered to mobile：Contacted 1. the point contact for changing shock boom end is roller part, in shock, pass through roller and rotate elimination tangential force；
2. buffering cylinder body sets turning hinge, in shock, tangential force is eliminated by the rotation of hinge.
9. water pressure buffer is applied to its interior pressure during flap valve
1) as shown in fig. 7, map parameter includes：Time t, unit s；In-cylinder pressure p, unit are buffered in flap valve knockout process
MPa；Flap valve rotational angular velocity ω, unit rad/s.Fig. 7 is single-chamber type buffer, and parameter had both reflected moment maximum, while instead
Reflect shock transient process.Design conditions：Flap valve closes an angular velocity omega=2.46rad/s；Buffering piston diameter D=0.1m, delays
Rush cylinder depth H=0.15m, sluicing bore dia 0.015m.Compares figure 7, shock start rear 0.03s flap valves angular velocity omega by 2.46rad/
S is down to 0.6rad/s；0.003s reaches maximum 52MPa, 0.03s and is down to 5MPa after cushion dashpot internal water pressure p terminations of pumping.
2) as shown in figure 8, map parameter includes：Time t, unit s；In-cylinder pressure p, unit are buffered in flap valve knockout process
MPa；Flap valve rotational angular velocity ω, unit rad/s.Fig. 8 is bicavate buffer, and cushion dashpot internal water pressure includes two chambers joint work
The p of p and the latter chamber that each works when making1With the p of two chambers2.Design conditions：Flap valve closes an angular velocity omega=2.27rad/s；Control
Fig. 2, a chamber buffering cylinder diameter D=0.12m, piston diameter D0=0.1192m, cylinder depth 0.08m；Two chamber cylinder diameter D2=0.08m, cylinder
Deep 0.08m；Pistons end diameter D1=0.0795m, root diameter (RD) is the same as two chamber cylinder diameter 0,08m, high h2=0.06m；Piston and buffering
Body distance 0.02m, sluicing bore dia 0.01m.Compares figure 8, shock start rear 0.04s flap valves angular velocity omega and are dropped by 2.27rad/s
To 0.2rad/s, hit 0.002s in-cylinder pressures P when initial one, two chamber communicates and reach maximum 27.5MPa；Two chamber during 0.009s
Pressure 27MPa, rapidly reduces thereafter, and the latter cavity pressures of 0.04s are less than 1MPa, and two cavity pressures are less than 2MPa.
Claims (10)
1. a kind of Hydraulic-operated Automatic Gate water pressure buffer, including the cushion dashpot (1) with cavity, the piston (3) with piston rod (2),
The piston is installed in cushion dashpot cavity, and guide way (4) is equipped between piston rod and the cushion dashpot cavity wall, it is characterized in that,
The cushion dashpot cylinder mouth is downward, and cushion dashpot cylinder bottom (5) is installed with the buffer body being used cooperatively with piston, which is bullet
Property body (6) or buffer cap (7), the buffer cap are equipped with cavity I (8), and I accent of cavity is opposite with pistons end；The hydraulic pressure delays
Rush device to be installed on gate or flap valve door leaf, buffer and the integral type structure of door body；Piston with piston rod (2) bears to hit
Hit power, by buffer body formed buffer, buffering terminate open again behind the door, the piston (3) with piston rod (2) under Gravitative Loads from
It is dynamic to reset.
2. Hydraulic-operated Automatic Gate water pressure buffer according to claim 1, it is characterized in that, the elastomer is solid elastomeric ball
Body or stainless steel spring, the piston, piston rod surface are axially arranged with return flume (9).
3. Hydraulic-operated Automatic Gate water pressure buffer according to claim 2, it is characterized in that, the pistons end is equipped with cavity II
(10), II accent of cavity is towards cushion dashpot cylinder bottom.
4. Hydraulic-operated Automatic Gate water pressure buffer according to claim 1, it is characterized in that, the pistons end is equipped with truncated cone-shaped
Raised I (11), which is hollow structure, which communicates with cushion dashpot cavity, and raised cavity III
Accent is opposite with I accent of buffer cap cavity, and raised I outside diameter is become larger by its cavity accent to bottom of chamber, I accent of buffer cap cavity
Internal diameter with protrusion I maximum outside diameter it is equal.
5. Hydraulic-operated Automatic Gate water pressure buffer according to claim 1, it is characterized in that, I internal diameter of buffer cap cavity by
Accent to bottom of chamber tapers into, and the pistons end is equipped with cylindrical protrusions II (13), which is hollow structure, the protrusion
Cavity IV (14) is communicated with cushion dashpot cavity, and raised IV accent of cavity is opposite with I accent of buffer cap cavity, buffer cap cavity
I minimum diameter is equal with raised II outside diameter.
6. Hydraulic-operated Automatic Gate water pressure buffer according to claim 4 or 5, it is characterized in that, the cushion dashpot cylinder bottom is equipped with
Spilled water hole (15), the spilled water hole is by buffer cap inner cavity with being connected outside cushion dashpot；The guide way is again provided with spilled water hole (15),
The spilled water hole connects cushion dashpot cavity with cushion dashpot outside.
7. Hydraulic-operated Automatic Gate water pressure buffer according to claim 1, it is characterized in that, the piston is equipped with cavity II
(10), I accent of buffer cap cavity is opposite with II accent of piston cavity；The buffer cap is truncated cone-shaped structure, buffer cap
Outside diameter is down become larger by its I accent of cavity, and the piston cavity II is tube-shaped structure, the maximum outside diameter of buffer cap with
The cavity inside diameter of piston is equal.
8. Hydraulic-operated Automatic Gate water pressure buffer according to claim 7, it is characterized in that, the cushion dashpot cylinder bottom, which is equipped with, to sluice
Hole (15), the spilled water hole is by buffer cap cavity with being connected outside cushion dashpot.
9. the Hydraulic-operated Automatic Gate water pressure buffer according to claim 7 or 8, it is characterized in that, the piston rod end is equipped with
Roller body (16).
10. the Hydraulic-operated Automatic Gate water pressure buffer according to claim 7 or 8, it is characterized in that, the buffer cap passes through rotation
Hinge (17) is connected with cushion dashpot cylinder bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769183.2U CN207244577U (en) | 2017-06-27 | 2017-06-27 | Hydraulic-operated Automatic Gate water pressure buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769183.2U CN207244577U (en) | 2017-06-27 | 2017-06-27 | Hydraulic-operated Automatic Gate water pressure buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207244577U true CN207244577U (en) | 2018-04-17 |
Family
ID=61877314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720769183.2U Expired - Fee Related CN207244577U (en) | 2017-06-27 | 2017-06-27 | Hydraulic-operated Automatic Gate water pressure buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207244577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130564A (en) * | 2017-06-27 | 2017-09-05 | 严登丰 | Hydraulic-operated Automatic Gate water pressure buffer |
| CN112177135A (en) * | 2020-10-13 | 2021-01-05 | 郭峰 | Normally open type flap valve mechanism for sewage pipeline |
-
2017
- 2017-06-27 CN CN201720769183.2U patent/CN207244577U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130564A (en) * | 2017-06-27 | 2017-09-05 | 严登丰 | Hydraulic-operated Automatic Gate water pressure buffer |
| CN107130564B (en) * | 2017-06-27 | 2022-08-23 | 严登丰 | Hydraulic buffer for hydraulic automatic door |
| CN112177135A (en) * | 2020-10-13 | 2021-01-05 | 郭峰 | Normally open type flap valve mechanism for sewage pipeline |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220711 Address after: 225000 second floor, entrepreneurship service center, University Science Park, No. 217, Kaifa West Road, Yangzhou high tech Industrial Development Zone, Jiangsu Province Patentee after: Jiangsu Zhongliu Guoliang Technology Co.,Ltd. Address before: 13-601, Yonghua mansion, No. 26, Hanjiang North Road, Yangzhou City, Jiangsu Province, 225000 Patentee before: Yan Dengfeng |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 |