CN102207080A - Combined type crankshaft with three corners and four fulcrums for three-cylinder reciprocating pump - Google Patents
Combined type crankshaft with three corners and four fulcrums for three-cylinder reciprocating pump Download PDFInfo
- Publication number
- CN102207080A CN102207080A CN2011101484874A CN201110148487A CN102207080A CN 102207080 A CN102207080 A CN 102207080A CN 2011101484874 A CN2011101484874 A CN 2011101484874A CN 201110148487 A CN201110148487 A CN 201110148487A CN 102207080 A CN102207080 A CN 102207080A
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- crank
- crankshaft
- reciprocating pump
- crank pin
- pump
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Abstract
The invention provides a combined type crankshaft with three corners and four fulcrums for a three-cylinder reciprocating pump, which mainly comprises a pump body, wherein four bearing seats are uniformly arranged in a linear direction of the pump body, four crank blocks are arranged at inner parts of the bearing seats through bearings, adjacent crank blocks are connected through crank pins, the crank pins are connected with connecting rods through the bearings, and an input shaft is arranged on a crank block at one end of the pump body. The crank blocks are combined with the crank pins, four supporting bearing seats can be arranged on the same crankshaft, so that the stability of the crankshaft is improved, the bending moment and alternating stress borne by the crankshaft can be reduced when the pump is in operation, the rigidity of the crankshaft is increased, the operation stability of the pump body can be improved, and the service life of the crankshaft can be prolonged; meanwhile, due to the split design of the crank blocks and the crank pins, the machining process of the crankshaft can be simplified, the machining difficulty can be reduced, and the machining accuracy can be improved; in addition, as the crank pins are connected with the connecting rods through the bearings, the wear between the crank pins and the connecting rods is reduced, generated heat is reduced, and the service life of the crankshaft and the pump is prolonged.
Description
Technical field
The present invention relates to the reciprocating pump bent axle, especially a kind of three cylinder reciprocating pump turns four fulcrum combined bent axles with three.
Background technique
Reciprocating pump is a kind of very important fluid machinery, and it inhales, arranges medium by the inlet/outlet one-way valve.At present to turn two fulcrum forms with three in the majority for the bent axle that adopts on the inherent three cylinder reciprocating pump of industry, and the bent axle of integrated type form needs special tooling when production and processing like this, and difficulty of processing is big, complex process, machining accuracy is difficult to control, and the cost of production height, and usability is poor.Can only connect by bearing shell when this class bent axle is connected with connecting rod simultaneously, form sliding friction between bearing shell and the bent axle, it is bigger to wear and tear, generate heat when operation, and reduced the working life of bearing shell and bent axle.Owing to be to adopt the two ends fulcrum to support, the bent axle centre is subjected to flexural stress and alternating stress is big, and bent axle is damaged easily, influences the normal use of reciprocating pump in addition.
Summary of the invention
The objective of the invention is provides a kind of production technology simple for the deficiency that solves above-mentioned technology, and the better three cylinder reciprocating pump of using effect turns four fulcrum combined bent axles with three.
In order to achieve the above object, the designed three cylinder reciprocating pump of the present invention turns four fulcrum combined bent axles with three, it mainly comprises body, crank pin, crank piece, on the axial direction of bent axle, evenly be provided with four bearing supports, four crank pieces of bent axle are set by rolling bearing in bearing support, connect by crank pin between the adjacent crank piece, crank pin is rotatably connected by rolling bearing and connecting rod, and the crank piece of body one end is provided with input shaft.This structure is decomposed into crank piece and crank pin with existing bent axle, and both separate machined reduce the processing technology difficulty, and the support with bent axle simultaneously is increased to four, reduces moment of flexure and alternating stress that bent axle is subjected to, improves the working life of bent axle.
The crank piece at described body two ends is provided with a crank pin connection mouth, the both sides of middle two crank pieces are provided with a crank pin connection mouth, the crank pin connection mouth is eccentric to be provided with, distance between the center of each crank pin connection mouth and the crank piece center is consistent, and three crank pieces mutual between angle be 120 °.Such structure can realize the balance between the bent axle, improves running stability, and it is more stable that reciprocating pump is used.
Described crank pin is connected with connecting rod by bearing, can reduce the friction between crank pin and the connecting rod, reduces wear and the generation of heat, improves the working life of bent axle.
The resulting three cylinder reciprocating pump of the present invention turns four fulcrum combined bent axles with three, combination by crank piece and crank pin, four supporting bearing base are set on same bent axle, improve the stability of bent axle, when pump operation, can reduce moment of flexure and alternating stress that bent axle is subjected to, improve the rigidity of bent axle, reach and improve the pump operation stationarity and prolong the bent axle purpose in working life.The split of crank piece and crankpin simultaneously designs, and can simplify the processing technology of bent axle, reduces difficulty of processing, improves machining accuracy.Crankpin is connected with connecting rod by bearing in addition, has reduced friction and wear between the two, reduces heating, can prolong the maintenance period of bent axle, improves the working life of bent axle and pump, has also made things convenient for the installation and maintenance of bent axle simultaneously.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1:
As shown in Figure 1, the three cylinder reciprocating pump that present embodiment is described turns four fulcrum combined bent axles with three, it mainly comprises body 1, on the rectilinear direction of body 1, evenly be provided with four bearing supports 2, be provided with four crank pieces 3 in bearing support 2 inside by rolling bearing 8, connect by crank pin 4 between the adjacent crank piece 3, crank pin 4 is rotatably connected with connecting rod 6, the crank piece 3 of body 1 one ends is provided with input shaft 7, the crank piece 6 at described body 1 two ends is provided with a crank pin connection mouth 5, the both sides of middle two crank pieces 3 are provided with a crank pin connection mouth 5, crank pin connection mouth 5 eccentric settings, distance between the center of each crank pin connection mouth 5 and crank piece 3 centers is consistent, and angle was 120 ° between three crank pieces 6 were mutual.Described crank pin 4 is connected with connecting rod 6 by rolling bearing 8.
Claims (3)
1. a three cylinder reciprocating pump turns four fulcrum combined bent axles with three, it mainly comprises body, the rectilinear direction that it is characterized in that body is provided with four bearing supports, be provided with four crank pieces in bearing support inside by rolling bearing, connect by crank pin between the adjacent crank piece, crank pin is connected with connecting rod, and the crank piece of body one end is provided with input shaft.
2. three cylinder reciprocating pump according to claim 1 turns four fulcrum combined bent axles with three, the crank piece that it is characterized in that the body two ends is provided with a crank pin connection mouth, the both sides of middle two crank pieces are provided with a crank pin connection mouth, the crank pin connection mouth is eccentric to be provided with, distance between the center of each crank pin connection mouth and the crank piece center is consistent, and three crank pieces mutual between angle be 120 °.
3. three cylinder reciprocating pump according to claim 1 and 2 turns four fulcrum combined bent axles with three, it is characterized in that crank pin is connected with connecting rod by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101484874A CN102207080A (en) | 2011-06-03 | 2011-06-03 | Combined type crankshaft with three corners and four fulcrums for three-cylinder reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101484874A CN102207080A (en) | 2011-06-03 | 2011-06-03 | Combined type crankshaft with three corners and four fulcrums for three-cylinder reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207080A true CN102207080A (en) | 2011-10-05 |
Family
ID=44696091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101484874A Pending CN102207080A (en) | 2011-06-03 | 2011-06-03 | Combined type crankshaft with three corners and four fulcrums for three-cylinder reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102207080A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147951A (en) * | 2013-04-03 | 2013-06-12 | 西安航空学院 | Low-vibration three-cylinder three-action reciprocating pump |
| CN107882691A (en) * | 2017-06-06 | 2018-04-06 | 周桑雨 | A kind of power transmission and the wind power plant with the power transmission |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856473Y (en) * | 2006-01-25 | 2007-01-10 | 大港油田集团有限责任公司 | Crankshaft 5-folding, 4-bearing device of reciprocating 5-plunger filling pump |
| CN202100443U (en) * | 2011-06-03 | 2012-01-04 | 杭州佳湖科技有限公司 | Three-corner four-pivot assembled crankshaft for three-cylinder reciprocating pump |
-
2011
- 2011-06-03 CN CN2011101484874A patent/CN102207080A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856473Y (en) * | 2006-01-25 | 2007-01-10 | 大港油田集团有限责任公司 | Crankshaft 5-folding, 4-bearing device of reciprocating 5-plunger filling pump |
| CN202100443U (en) * | 2011-06-03 | 2012-01-04 | 杭州佳湖科技有限公司 | Three-corner four-pivot assembled crankshaft for three-cylinder reciprocating pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147951A (en) * | 2013-04-03 | 2013-06-12 | 西安航空学院 | Low-vibration three-cylinder three-action reciprocating pump |
| CN107882691A (en) * | 2017-06-06 | 2018-04-06 | 周桑雨 | A kind of power transmission and the wind power plant with the power transmission |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111005 |