CN102022301A - Three-cam shaft for large-flow high-pressure constant flow pump - Google Patents
Three-cam shaft for large-flow high-pressure constant flow pump Download PDFInfo
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- CN102022301A CN102022301A CN2010105608138A CN201010560813A CN102022301A CN 102022301 A CN102022301 A CN 102022301A CN 2010105608138 A CN2010105608138 A CN 2010105608138A CN 201010560813 A CN201010560813 A CN 201010560813A CN 102022301 A CN102022301 A CN 102022301A
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- cam
- cams
- lift
- shaft
- cam shaft
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Abstract
The invention discloses a three-cam shaft for a large-flow high-pressure constant flow pump, which is provided with a shaft (1). The three-cam shaft is characterized in that three cams (2) with the same curve are fixed on the shaft (1), and the angles of the three cams (2) differ 120 DEC in sequence; and the lift angle of each cam is 240 DEG, the return angle is 120 DEG, and the lift is 13 mm. The cam shaft rotates continuously to always ensure that two cams stay in the lift state and one cam stays in the return state, the overlap data of the two cams in the lift state raises uniformly, a compensating area is added in an alternate angle area among the cams to counteract the fluctuation of conveyed fluid caused by cam alternation, and the performance is stable. The invention can ensure that a pump head is simultaneously provided with two plunger rods to output the fluid, solves the problems of requirement for high motor revolution, requirement for large plunger diameter, difficult machining and the like, is easy to machine and can reduce manufacturing cost.
Description
Technical field:
The present invention relates to a kind of constant flow pump camshaft, big-flow high-pressure constant flow pump three camshafts of especially a kind of simple in structure, easy processing, with low cost, reliable performance.
Background technique:
High pressure constant flow pump has stability of flow, advantage that pressure is high, at present widely used is twin cam shaft pump in parallel, be to be fixed with two cams that curve is identical on the line shaft, two cam angle degrees differ 180 °, and the lift angle of each cam, backhaul angle are 180 °.The driven by motor twin cam shaft rotates during work, the rotation potential energy of each cam is changed into straight line motion kinetic energy, thereby drive two plunger rods motions of pump head respectively, finishes the high voltage and constant current infusion process.But, when flow reaches certain numerical value, certainly will require the liquid output speed of single plunger to increase substantially, can only realize by the mode that increases motor speed or increase plunger rod diameter, cause choice of electrical machine difficulty, cost height and plunger rod processing difficulties etc.
Summary of the invention:
The present invention is in order to solve the above-mentioned technical problem of existing in prior technology, and big-flow high-pressure constant flow pump three camshafts of a kind of simple in structure, easy processing, with low cost, reliable performance are provided.
Technical solution of the present invention is: a kind of big-flow high-pressure constant flow pump three camshafts, axle 1 is arranged, it is characterized in that: on axle 1, be fixed with three cams 2 that curve is identical, three cam 2 angles differ 120 ° successively, 240 ° of the lift angles of each cam, 120 ° of backhaul angles, lift 13mm.
Three camshafts in parallel of the present invention, camshaft continues rotation, all the time guarantee that two cams are in the lift state, a cam is in the backhaul state, the two cam superposition of data that guarantee lift evenly raise and the alternately angular regions increase compensatory zone between cam, offset the conveying liquid fluctuation that cam alternately causes, stable performance; Can make pump head that two plunger rod output liquids are arranged simultaneously, solve problems such as, difficult processing big to motor speed requirement height, plunger diameter requirement, processing is simple, can reduce manufacture cost.
Description of drawings:
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the side view of Fig. 1.
Embodiment:
Below in conjunction with description of drawings the specific embodiment of the present invention.As shown in Figure 1, 2: axle 1 same as the prior art is arranged, on axle 1, be fixed with three identical 2, three cam 2 angles of cam of curve and differ 120 ° successively, 240 ° of the lift angles of each cam, 120 ° of backhaul angles, lift 13mm.
Three cam curves such as following table, D1, D2, D3 are the diameter of three cams of same angle in the table, each null circle slips over and crosses connection:
Claims (1)
1. big-flow high-pressure constant flow pump three camshafts have axle (1), it is characterized in that: be fixed with three cams (2) that curve is identical on axle (1), three cams (2) angle differs 120 ° successively, 240 ° of the lift angles of each cam, 120 ° of backhaul angles, lift 13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010560813.8A CN102022301B (en) | 2010-11-26 | 2010-11-26 | Three-cam shaft for large-flow high-pressure constant flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010560813.8A CN102022301B (en) | 2010-11-26 | 2010-11-26 | Three-cam shaft for large-flow high-pressure constant flow pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102022301A true CN102022301A (en) | 2011-04-20 |
| CN102022301B CN102022301B (en) | 2014-05-14 |
Family
ID=43863976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010560813.8A Active CN102022301B (en) | 2010-11-26 | 2010-11-26 | Three-cam shaft for large-flow high-pressure constant flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102022301B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469479A (en) * | 2019-08-21 | 2019-11-19 | 中山致安化工科技有限公司 | Pump transmission device and delivery pump |
| CN112128094A (en) * | 2020-09-22 | 2020-12-25 | 电子科技大学中山学院 | Constant-diameter cam group for pulse-free constant-flow three-plunger pump |
| CN113967440A (en) * | 2021-09-15 | 2022-01-25 | 苏州布雷沃斯科技有限公司 | Constant-pressure type nanometer homogenizer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105369A (en) * | 1985-07-13 | 1987-01-21 | 富士技术工业株式会社 | Reciprocating hydraulic pump |
| CN2107539U (en) * | 1991-12-04 | 1992-06-17 | 叶培德 | High-function fuel injection pump |
| US5364242A (en) * | 1992-11-25 | 1994-11-15 | Pharmacia Deltec, Inc. | Pump apparatus and method including double activation pump apparatus |
| CN201358821Y (en) * | 2009-03-10 | 2009-12-09 | 赵训姣 | Valve driving device of valve-spring-free air distribution mechanism in engine |
| CN201896709U (en) * | 2010-11-26 | 2011-07-13 | 大连依利特分析仪器有限公司 | Three-cam shaft for high-flow high-pressure constant-flow pump |
-
2010
- 2010-11-26 CN CN201010560813.8A patent/CN102022301B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105369A (en) * | 1985-07-13 | 1987-01-21 | 富士技术工业株式会社 | Reciprocating hydraulic pump |
| CN2107539U (en) * | 1991-12-04 | 1992-06-17 | 叶培德 | High-function fuel injection pump |
| US5364242A (en) * | 1992-11-25 | 1994-11-15 | Pharmacia Deltec, Inc. | Pump apparatus and method including double activation pump apparatus |
| CN201358821Y (en) * | 2009-03-10 | 2009-12-09 | 赵训姣 | Valve driving device of valve-spring-free air distribution mechanism in engine |
| CN201896709U (en) * | 2010-11-26 | 2011-07-13 | 大连依利特分析仪器有限公司 | Three-cam shaft for high-flow high-pressure constant-flow pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469479A (en) * | 2019-08-21 | 2019-11-19 | 中山致安化工科技有限公司 | Pump transmission device and delivery pump |
| CN112128094A (en) * | 2020-09-22 | 2020-12-25 | 电子科技大学中山学院 | Constant-diameter cam group for pulse-free constant-flow three-plunger pump |
| CN113967440A (en) * | 2021-09-15 | 2022-01-25 | 苏州布雷沃斯科技有限公司 | Constant-pressure type nanometer homogenizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102022301B (en) | 2014-05-14 |
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