CN104763619B - High-efficiency positive displacement pump - Google Patents
High-efficiency positive displacement pump Download PDFInfo
- Publication number
- CN104763619B CN104763619B CN201510135101.4A CN201510135101A CN104763619B CN 104763619 B CN104763619 B CN 104763619B CN 201510135101 A CN201510135101 A CN 201510135101A CN 104763619 B CN104763619 B CN 104763619B
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- China
- Prior art keywords
- pump head
- pump
- worm
- axle
- eccentric shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 21
- 241000237858 Gastropoda Species 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 18
- 239000003921 oil Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention provides a high-efficiency positive displacement pump. The high-efficiency positive displacement pump comprises a case, a motor, a worm, a worm gear, an eccentric shaft, a shaft and a pump head; the motor is connected with the worm rod by use of a worm sleeve; the lower end of the worm is positioned and connected with the case by use of a bearing; the worm drives the worm gear to rotate; the worm drives the eccentric shaft to rotate; the eccentric shaft drives the shaft to reciprocate in the pump head; the pump head comprises a left pump head and a right pump head, the two of which are arranged oppositely and connected by use of a sliding sleeve. Compared with the prior art, the high-efficiency positive displacement pump has the beneficial effects that the dual-pump head structure is adopted so that a liquid can be suctioned and discharged twice in one working period of the connecting rod, and the working efficiency is doubled in contrast with the prior art, the impact problem of engagement is overcome, the impact of toothed surfaces is avoided and no impact noise is generated, and therefore, the service life of the pump can be prolonged to a large extent.
Description
Technical field
A kind of the present invention relates to pump, in particular it relates to efficient displacement pump.
Background technology
Displacement pump, is that the work packages such as a kind of dependence piston, plunger, barrier film, gear or blade are reciprocating in the pump housing
Or gyration, so that the volume of several working chambers pump housing Nei is periodically changed, and alternately suck with drain
Plant pump.Displacement pump on the market is broadly divided into reciprocating pump, drum pump two big class at present.
Existing reciprocating diaphragm pump has the disadvantage that mostly, and connecting rod does horizontal direction displacement in the presence of eccentric shaft
When, because connecting rod and diaphragm, oil seal are in flexible connection state it is impossible to produce the pure linear motion of horizontal direction.By
In the pure linear motion that cannot produce horizontal direction, so there be nonstandard being harmful to draw high, to two to lamp-type oil sealing and diaphragm
Part has larger mechanical damage, substantially reduces its service life, is susceptible to leakage and oil leakage phenomenon.
Existing similar pump adopts single pump head structure, one working cycle of connecting rod substantially, and liquid is inhaled, arranged once, work efficiency
Low；And the pump of single pump head structure is operationally, one of connecting rod working cycle back and forth, it is to pressurize that pump head volume internal volume reduces
Journey, and it is pressure leak process that volume increases, thus causing the flank engagement position of worm gear and worm screw to be change, producing and periodically becoming
Change.If the engaging tooth of worm gear and worm screw has gap, the periodicity that will produce the flank of tooth is clashed into, and produces noise.With pump work
The prolongation of time, the aggravation of tooth surface abrasion, the back lash of tooth can be increasing, and shock can aggravate, and noise can increase, using the longevity
Life can drastically decline.
Content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of structure is simple, high working efficiency and use
The efficient displacement pump of life-span length.
A kind of efficient displacement pump, including cabinet, motor, worm screw, worm gear, eccentric shaft, axle, pump head, described motor passes through
Worm set is connected with worm screw, and described worm screw lower end is located by connecting with cabinet by bearing, and described worm drive worm gear rotates,
Described worm-gear driven eccentric shaft rotation, described eccentric shaft drive shaft moves back and forth it is characterised in that described in pump head
Pump head includes left pump head, right pump head, and described left pump head, right pump head are oppositely arranged, between connected by sliding sleeve.
It is provided with connecting rod, described connecting rod is passed through bearing and connected with the off-centre operation on eccentric shaft between described eccentric shaft and axle
Connect, one end is connected with linkage connector by spherical plain bearing rod end, described linkage connector is connected with axle thread.
The upper and lower end of described left pump head and right pump head is equipped with check valve, described left pump head and right pump head upper end
One-way valved outlet is connected by threeway, and the one-way valved outlet of described left pump head and right pump head lower end is connected by threeway.
Described axle passes through sliding sleeve, push pedal after the volume intracavity of left pump head and right pump head is respectively and fixedly provided with respectively.
Described sliding sleeve both sides are equipped with backbone sealing ring.
Compared with prior art, the present invention has following beneficial effect: connecting rod and axle are to be rigidly connected, and axle is in sliding sleeve
Motion, so pure horizontal direction linear motion can be done when the lamp-type oil sealing being attached thereto and diaphragm work, to lamp-type oil sealing, every
The mechanical damage that diaphragm will additionally not be harmful to, for solving the displacement straight line output of connecting rod, devises the company of spherical plain bearing rod end
Connect mode, effectively overcome the impact of the countershaft active force in addition to horizontal linear direction of connecting rod；
Using double pump header structure, one working cycle of connecting rod, liquid is inhaled, row is secondary, improves than prior art work efficiency
One times；
Overcome worm gear and the Impact Problems of worm tooth engagement, because this structure design, working condition axle begins to connecting rod
Apply constant load eventually, worm gear and worm screw can be in the working condition that single cog engages all the time, even if fit clearance is excessive,
The shock of the flank of tooth will not be produced, also just there is no the generation of impact noise, just can significantly extend the service life of pump.
Brief description
The detailed description with reference to the following drawings, non-limiting example made by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of structural representation of efficient displacement pump of the present invention.
In figure: 1 is cabinet, 2 is worm set, and 3 is pin, and 4 is worm screw, and 5 is clutch shaft bearing, and 6 is second bearing, and 7 is bar
End oscillating bearing, 8 is pivot pin, and 9 is linkage connector, and 10 is lamp-type oil sealing, and 11 is inner pressure ring, and 12 is soket head cap screw, and 13 is even
Rod seal ring, 14 be axle jump ring, 15 be second after push pedal, 16-1 be left diaphragm, 16-2 be right diaphragm, 17 be under unidirectional
Valve, 18-1 is left pump head, and 18-2 is right pump head, and 19-1 is left clamping cap, and 19-2 is right clamping cap, and 20 is axle, and 21 is nut, 22
For push pedal after first, 23 is pump head lid, and 24 is backbone sealing ring, and 25 is sliding sleeve, and 26 is o shape circle sealing ring, and 27 is motor, 28-1
For upper three way cock, 28-2 is lower three way cock, and 29 is worm gear, and 30 is eccentric shaft, and 31 is connecting rod, and 32 is left pump cavity volume, 33
For right pump cavity volume, 34 is pump head lid cavity volume.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some deformation can also be made and improve.These broadly fall into the present invention
Protection domain.
As shown in figure 1, a kind of efficient displacement pump being provided according to the present invention, including cabinet 1, motor 27, worm screw 4, worm gear
29th, eccentric shaft 30, axle 20, pump head, motor 27 is connected with worm screw 4 by worm set 2, and it is solid that worm set 2 and worm screw 4 pass through pin 3
Fixed, worm screw lower end is located by connecting with cabinet 1 by clutch shaft bearing 5, drives worm screw 4 to rotate by worm set 2 after starting motor 27,
Worm gear 29 is simultaneously driven to circle, worm gear 29 drives the eccentric shaft 30 being attached thereto to move in a circle again, eccentric shaft 30 leads to
Cross connecting rod 31 and linkage connector 9 drive shaft 20 moves back and forth in pump head.Pump head includes left pump head 18-1, right pump head 18-2, left
Pump head 18-1, right pump head 18-2 are oppositely arranged, between connected by sliding sleeve 25.
The outer rim of lamp-type oil sealing 10 is connected with cabinet 1 with soket head cap screw 12 by inner pressure ring 11, is in sealing state；Lamp
Type oil sealing 10 endoporus passes through connecting rod sealing ring 13 and axle jump ring 14 is connected with linkage connector 9, is in sealing state, realizes in cabinet
The sealing of lubricating oil.
Connecting rod 31 is connected with the off-centre operation on eccentric shaft 30 by second bearing 6, and connecting rod 31 left end passes through pivot pin 8 connecting rod
End oscillating bearing 7, the threaded linkage connector 9 of spherical plain bearing rod end 7, when eccentric shaft 30 moves in a circle, connecting rod 31 passes through
Spherical plain bearing rod end 7 drive link joint 9 produces the displacement of horizontal direction, and its displacement is the offset of eccentric shaft.
Axle 20 right-hand member is threadeded with linkage connector 9, and left end nut 21 is connected with push pedal after first 22.Connect on axle 20
Be connected with: push pedal 15 after second, right diaphragm 16-2, right clamping cap 19-2, left clamping cap 19-1, left diaphragm 16-1, first
Push pedal 22 make left diaphragm 16-1, right diaphragm 16-2 be respectively in left pump cavity volume 32 and right pump cavity volume 33 afterwards.
Left pump head 18-1 and right pump head 18-2 formula bushing with sliding sleeve 25 are connected, the sliding sleeve of left pump head 18-1 and right pump head 18-2
Near-end, is equipped with backbone sealing ring 24, and axle 20 passes through sliding sleeve 25, is arranged in sliding sleeve 25, two ends are sealed by backbone sealing ring 24,
Sealed with push pedal 15 after push pedal 22 and second after two o shape circle sealing rings 26 and first respectively, so that left pump cavity volume
32 and right pump cavity volume 33 become respective independent closed chamber.When axle 20 displacement to the right, left pump cavity volume 32 volume reduces, right pump
Cavity volume 33 volume increases；When axle 20 is to left dislocation, left pump cavity volume 32 volume increases, and right pump cavity volume 33 volume reduces.
Left pump cavity volume 32 and right pump cavity volume 33 upper and lower side respectively have a upper check valve and a lower check valve, and left pump holds
Long-pending chamber 32 connects the total outlet of formation, left pump with two of right pump cavity volume 33 upper one-way valved outlet by upper three-way interface 28-1
Cavity volume 32 connects the total outlet of formation with two lower one-way valved outlet of right pump cavity volume 33 by lower three-way interface 28-2.
When axle 20 makees horizontal rectilinear motion, the volume in left pump cavity volume 32 and right pump cavity volume 33 is made to make level with axle 20
Linear motion produces cyclically-varying, and when volume becomes big, upper one-way cock is closed, and liquid sucks cavity volume by lower check valve；Volume
Diminish closed check valve at present, and liquid is discharged through upper check valve.
In the present invention, connecting rod 31 and axle 20 are to be rigidly connected, and axle 20 moves in sliding sleeve 25, so the lamp being attached thereto
Pure horizontal direction linear motion can be done when type oil sealing 10, right diaphragm 16-2 and left diaphragm 16-1 work, to lamp-type oil sealing 10,
Right diaphragm 16-2 and left diaphragm 16-1 will not have extra mechanical damage, and spherical plain bearing rod end 7 can solve connecting rod 31
Displacement straight line output, effectively overcome the impact of the countershaft active force in addition to horizontal linear direction of connecting rod.
Using double pump header structure, 31 1 working cycle of connecting rod, liquid is inhaled, row is secondary, carries than prior art work efficiency
High one times.Also install as the upper and lower side in pump head lid 23, lower check valve, pump head lid cavity volume 34 can lift the liquid of this pump again
Body output, or another kind of different liquid can be conveyed.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (3)
1. a kind of efficient displacement pump, including cabinet, motor, worm screw, worm gear, eccentric shaft, axle, pump head, described motor passes through snail
Rod set is connected with worm screw, and described worm screw lower end is located by connecting with cabinet by bearing, and described worm drive worm gear rotates, institute
The worm-gear driven eccentric shaft rotation stated, described eccentric shaft drive shaft moves back and forth the pump it is characterised in that described in pump head
Head includes left pump head, right pump head, and described left pump head, right pump head be oppositely arranged, between connected by sliding sleeve；Described axle passes through
Sliding sleeve, push pedal after the volume intracavity of left pump head and right pump head is respectively and fixedly provided with respectively, axle right-hand member is threadeded with linkage connector, left
End nut is connected with push pedal after first；It is connected in series with axle: push pedal, right diaphragm, right clamping cap, left compression after second
Cap, left diaphragm, push pedal make left diaphragm, right diaphragm be respectively at left pump cavity volume and right pump volume intracavity after first.
2. a kind of efficient displacement pump according to claim 1 is it is characterised in that the company of being provided between described eccentric shaft and axle
Bar, described connecting rod is connected with the off-centre operation on eccentric shaft by bearing, and spherical plain bearing rod end is passed through with linkage connector even in one end
Connect, described linkage connector is connected with axle thread.
3. a kind of efficient displacement pump according to claim 1 it is characterised in that described left pump head and right pump head upper,
Lower end is equipped with check valve, and the one-way valved outlet of described left pump head and right pump head upper end is connected by threeway, described left pump
The one-way valved outlet of head and right pump head lower end is connected by threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135101.4A CN104763619B (en) | 2015-03-26 | 2015-03-26 | High-efficiency positive displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135101.4A CN104763619B (en) | 2015-03-26 | 2015-03-26 | High-efficiency positive displacement pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763619A CN104763619A (en) | 2015-07-08 |
| CN104763619B true CN104763619B (en) | 2017-02-01 |
Family
ID=53645645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510135101.4A Expired - Fee Related CN104763619B (en) | 2015-03-26 | 2015-03-26 | High-efficiency positive displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763619B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566442B (en) * | 2018-12-21 | 2020-12-01 | 乐清市川嘉电气科技有限公司 | Detachable portable diaphragm pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2898361Y (en) * | 2006-03-21 | 2007-05-09 | 王明显 | Reciprocating multi-stage diaphragm pump |
| EP2123912A1 (en) * | 2008-05-23 | 2009-11-25 | DLP Limited | Diaphragm pump with vent |
| CN202768349U (en) * | 2012-09-04 | 2013-03-06 | 常州新江南能源设备有限公司 | Double-end diaphragm pump |
| CN204572401U (en) * | 2015-03-26 | 2015-08-19 | 邱列扬 | A kind of efficient displacement pump |
-
2015
- 2015-03-26 CN CN201510135101.4A patent/CN104763619B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104763619A (en) | 2015-07-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180823 Address after: 310003 Room 501, Dongyuan new village, Xiacheng District, Hangzhou, Zhejiang, China, 106 Co-patentee after: Han Guiying Patentee after: Qiu Lieyang Address before: 310003 Room 501, Dongyuan new village, Xiacheng District, Hangzhou, Zhejiang, China, 106 Co-patentee before: HANGZHOU HENG-LI MACHINERY FACTORY Patentee before: Qiu Lieyang |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |