CN101737284B - Single eccentric center translation reciprocating mechanism - Google Patents
Single eccentric center translation reciprocating mechanism Download PDFInfo
- Publication number
- CN101737284B CN101737284B CN 200910215264 CN200910215264A CN101737284B CN 101737284 B CN101737284 B CN 101737284B CN 200910215264 CN200910215264 CN 200910215264 CN 200910215264 A CN200910215264 A CN 200910215264A CN 101737284 B CN101737284 B CN 101737284B
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- China
- Prior art keywords
- connecting rod
- bearing
- bent axle
- reciprocating mechanism
- eccentric center
- 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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- 238000013519 translation Methods 0.000 title claims abstract description 13
- 230000033001 locomotion Effects 0.000 abstract description 17
- 230000014616 translation Effects 0.000 abstract 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
- Compressor (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a single eccentric translation reciprocating mechanism which comprises a connecting rod, a plunger piston and a crank shaft, wherein a supporting bearing is arranged on the crank shaft; a connecting rod bearing is arranged between the connecting rod and a crank throw of the crank shaft; the connecting rod bearing is provided with an eccentric center relative to the supporting bearing; an inner hole of the connecting rod is formed by connecting an upper semicircle, a lower semicircle and a middle straight line section; the connecting rod bearing is in contact and connected with the straight line section of the inner hole of the connecting rod; and a connecting rod head of the connecting rod is connected with the plunger piston. The mechanism has the advantages of less parts, compact structure, material saving and small occupation space on the whole. In addition, because the connecting rod only has translations but has no rotary motions and swings, the noise becomes low, and the motions are more stable and reliable.
Description
Technical field
The present invention relates to a kind of reciprocator of reciprocating pump.
Background technique
Reciprocator is the major component of reciprocating pump, can make rotatablely moving of bent axle change the linear reciprocating motion of piston (plunger) and then the function that the periodically-varied volume size reaches fed sheet of a media into.Reciprocating structure in traditional reciprocating pump mainly contains three kinds like Fig. 1, Fig. 2, shown in Figure 3; Wherein the reciprocator among Fig. 1 comprise bent axle 1 ', connecting rod 3 ', crosshead 6 ', crosshead pin 5 ', bearing shell 2 ', bearing 4 '; Connecting rod 3 ' the realized bent axle 1 ' crosshead 6 that rotatablely moves ' reciprocating conversion is rotated together and then is realized connecting rod 3 ' fraction quality and crosshead 6 ' do straight reciprocating motion by bent axle 1 ' drivening rod 3 ' most of quality.This constitutional detail quantity is many, big, stressed complicacy takes up room.In addition, connecting rod 3 ' most of quality has with bent axle 1 ' rotate, and makes connecting rod 3 ' swing back and forth, so surging is big, noise is high, bumpy motion.Reciprocator among Fig. 2 comprises plunger 1 ", nut 2 ", ball seat 3 ", pressure ring 4 ", backhaul ring 5 ", bearing shell 6 ", bent axle 7 ", bent axle 7 " will rotatablely move through bearing shell 6 " and backhaul ring 5 " converts to-and-fro motion into.This structure does not have connecting rod, compact structure, take up room less, but relative velocity is high between bent axle 7 " and bearing shell 6 ", specific pressure is big, heating, wearing and tearing are big, cause fever easily and lose efficacy.Reciprocator among Fig. 3 comprises 1 ° of eccentric wheel, 2 ° on bearing shell, 3 ° in bearing shell cover, 4 ° of plungers, 5 ° of Returnning springs; To rotatablely move for 1 ° through eccentric wheel passes to 3 ° in bearing shell cover, makes the acting in conjunction formation to-and-fro motion down at 3 ° in bearing shell cover and 5 ° on spring of 4 ° of plungers.This structure does not have connecting rod yet, compact structure and take up room little, but spring receives alternate load for 5 °, its life-span is short, elastic force is limited, only suitable clearance seal and inapplicable packing seal are lubricated cooling difficulty between 2 ° on 1 ° of eccentric wheel and bearing shell simultaneously.
Summary of the invention
The present invention will solve that there is complex structure in the reciprocating structure that traditional reciprocating pump uses, the problem big, that surging is big, noise is high, the life-span is short that takes up room, and a kind of compact structure is provided, single eccentric center translation reciprocating mechanism little, that surging is little, noise is low, the life-span is long takes up room.
Technological scheme of the present invention:
Single eccentric center translation reciprocating mechanism; Comprise connecting rod, plunger, bent axle, said bent axle is provided with spring bearing, it is characterized in that: between the crank throw of said connecting rod and bent axle connecting rod bearing is installed; The relative spring bearing of said connecting rod bearing has off-centre; The endoporus of said connecting rod is to be connected to form with the middle straight line segment by two semi-circlees up and down, and said connecting rod bearing contacts with the straightway of connecting rod endoporus and is connected, and the connecting rod head of said connecting rod connects described plunger.
Further, be provided with a back-up ring below the said connecting rod bearing.
The motion of bent axle on the driven by motor spring bearing makes connecting rod bearing motion on the crank throw; Because connecting rod bearing and the wobbler action of spring bearing and unique endoporus of said connecting rod; Make the motion promotion connecting rod of connecting rod bearing do the translation to-and-fro motion, and realize the straight reciprocating motion of said plunger through said connecting rod head.
Beneficial effect of the present invention: on the whole few, compact structure, saving material of this apparatus parts, take up room little.In addition, so because connecting rod has only translation not rotatablely move, the swing surging does not diminish, noise diminishes, moves more steadily reliable.
Description of drawings
Fig. 1 is the structural representation of first kind of conventional reciprocating pump with reciprocator.
Fig. 2 is the structural representation of second kind of conventional reciprocating pump with reciprocator.
Fig. 3 is the structural representation of the third conventional reciprocating pump with reciprocator.
Fig. 4 is a structural representation of the present invention.
Fig. 5 is a plan view of the present invention.
Fig. 6 is the structural representation of connecting rod of the present invention.
Embodiment
With reference to Fig. 4-6, single eccentric center translation reciprocating mechanism comprises connecting rod 1, plunger 4, bent axle 2; Said bent axle 2 is provided with spring bearing 5; Between the crank throw 6 of said connecting rod 1 and bent axle 2 connecting rod bearing 3 is installed, said connecting rod bearing 3 relative spring bearings 5 have off-centre, and the endoporus of said connecting rod 1 is to be connected to form with middle straight line segment 12 by two semi-circlees 11 up and down; Said connecting rod bearing 3 is connected with straightway 12 contacts of connecting rod 1 endoporus, and the connecting rod head 13 of said connecting rod 1 connects described plunger 4.
Said connecting rod bearing 3 belows are provided with a back-up ring 7.
Bent axle 2 motion on the driven by motor spring bearing 5 makes connecting rod bearing 3 motions on the crank throw 6; Because connecting rod bearing 3 and the wobbler action of spring bearing 5 and unique endoporus of said connecting rod 1; Make the motion promotion connecting rod 1 of connecting rod bearing 3 do the translation to-and-fro motion, and realize the straight reciprocating motion of said plunger 4 through said connecting rod head 13.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Should not being regarded as of protection scope of the present invention only limits to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (2)
1. single eccentric center translation reciprocating mechanism; Comprise connecting rod, plunger, bent axle; Said bent axle is provided with spring bearing, it is characterized in that: between the crank throw of said connecting rod and bent axle connecting rod bearing is installed, the relative spring bearing of said connecting rod bearing has off-centre; The endoporus of said connecting rod is by up and down two semi-circlees and middle straight line segment connect to form; Described straightway is positioned at the direction that described connecting rod promotes described plunger translation, and said connecting rod bearing is connected with the straightway contact of connecting rod endoporus, and the connecting rod head of said connecting rod connects described plunger.
2. single eccentric center translation reciprocating mechanism according to claim 1 is characterized in that: said connecting rod bearing below is provided with a back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910215264 CN101737284B (en) | 2009-12-26 | 2009-12-26 | Single eccentric center translation reciprocating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910215264 CN101737284B (en) | 2009-12-26 | 2009-12-26 | Single eccentric center translation reciprocating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101737284A CN101737284A (en) | 2010-06-16 |
| CN101737284B true CN101737284B (en) | 2012-12-12 |
Family
ID=42461197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910215264 Expired - Fee Related CN101737284B (en) | 2009-12-26 | 2009-12-26 | Single eccentric center translation reciprocating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101737284B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374149B (en) * | 2010-08-09 | 2014-04-23 | 苏州鸿本机械制造有限公司 | Oil-free pump for high-pressure cleaning machine |
| CN112573119A (en) * | 2019-09-29 | 2021-03-30 | 中烟机械技术中心有限责任公司 | Reciprocating motion device |
-
2009
- 2009-12-26 CN CN 200910215264 patent/CN101737284B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101737284A (en) | 2010-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 |