CN107842479B - Transmission structure of miniature plunger pump - Google Patents
Transmission structure of miniature plunger pump Download PDFInfo
- Publication number
- CN107842479B CN107842479B CN201711383272.4A CN201711383272A CN107842479B CN 107842479 B CN107842479 B CN 107842479B CN 201711383272 A CN201711383272 A CN 201711383272A CN 107842479 B CN107842479 B CN 107842479B
- Authority
- CN
- China
- Prior art keywords
- driven shaft
- plunger
- shaft bearing
- main shaft
- matched
- 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.)
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
- F04B49/123—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element
- F04B49/125—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element by changing the eccentricity of the actuation means, e.g. cams or cranks, relative to the driving means, e.g. driving shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Abstract
The invention relates to a miniature plunger pump transmission structure which is used for a plunger pump of a small-flow combustor, wherein a main shaft, a driven shaft, a double-head acting plunger, a shaft snap spring, a main shaft bearing and a driven shaft bearing are arranged on the main shaft and the driven shaft; the main shaft comprises a clamp spring groove, the right end face is provided with transmission threaded holes matched with a driven shaft in different concentricity, the right end is provided with a main shaft bearing, and the outer circle of the main shaft bearing is in interference fit with the pump body; the left end of the driven shaft is provided with a screw thread matched with the right end of the transmission screw hole to sleeve and press the driven bearing; the excircle of the driven shaft bearing is in precise fit with the concave of the double-head acting plunger, and the driven shaft bearing rotates to do radial repeated motion, so that a low-flow high-pressure transmission structure is realized.
Description
Technical Field
The invention provides a miniature plunger pump transmission structure, belongs to the field of pump shaft transmission structures with adjustable flow of miniature plunger pumps, and solves the problems of boiler coal to biomass oil, the technology of a constant-pressure variable-flow mechanical environment-friendly pump of a small combustor, and the manufacturing field of environment-friendly pumps of a required matched combustor system.
Background
The pressure required by the micro combustor pump is 8-12 kg, the flow is 2-6L liters per hour, for example, 3 ten thousand large card combustors need 2-3 liters per hour, and different flows are taken according to the fuel combustion quality; the pump adopts the plunger pump principle, but the original plunger pump transmission part generally adopts a cam structure, a connecting rod structure and the like, a gear box device is needed, lubricating oil is needed, the volume is large, the structure and the processing technology are complex, the common plunger pump structure only enables the pump to be suitable for a large-flow pump, the flow is basically fixed, the pump is also used as a metering pump and the like, and the pump is not suitable for being used as a single pump with adjustable flow; in order to solve the problem of small flow and high efficiency of the miniature plunger pump, the flow can be adjusted according to the actual working condition, and the flow change is adjusted; the plunger pump with adjustable flow and constant pressure is urgently needed, the transmission part is reasonable in structure, a lubrication system is not needed to be additionally added in plunger pump transmission, the volume is small, the structure is simple, the performance is stable, the plunger pump is suitable for occasions with the characteristics of easy volatilization, easy vaporization, low density and low lubrication of organic clean fuel, and the low-flow high-pressure constant-pressure pump system is provided.
Disclosure of Invention
According to the defects of the prior art and the improvement of the miniature combustor plunger pump applicable to the coal-fired boiler, the miniature plunger pump transmission structure solves the requirements of small flow and adjustable characteristic of the organic combustion fuel oil applicable to the combustor pump.
1. Miniature plunger pump transmission structure for small-flow combustor plunger pump, its characterized in that: the main shaft, the driven shaft, the double-head acting plunger, the shaft clamp spring, the main shaft bearing and the driven shaft bearing are arranged on the main shaft and the driven shaft; the main shaft comprises a clamp spring groove, the right end face is provided with transmission threaded holes matched with a driven shaft in different concentricity, the right end is provided with a main shaft bearing, and the outer circle of the main shaft bearing is in interference fit with the pump body; the left end of the driven shaft is provided with a screw thread matched with the right end of the transmission screw hole to sleeve and press the driven bearing; the excircle of the driven shaft bearing is precisely matched with the concave of the double-head acting plunger piston, and the driven shaft bearing rotates to do radial repeated motion.
2. The miniature plunger pump transmission structure is characterized in that: 2-4 transmission threaded holes with different concentricity are arranged on the right end surface of the main shaft, and the concentric holes are distributed at different angles; the left end is provided with a main shaft bearing which is connected with the pump body.
3. The miniature plunger pump transmission structure is characterized in that: the left end screw thread of the driven shaft can be matched with different transmission screw holes according to actual flow requirements, and the outer end of the screw thread is provided with a hexagon so as to be convenient for simple disassembly and installation, and the right side is matched with a driven shaft bearing and a matched double-head plunger.
4. The miniature plunger pump transmission structure is characterized in that: the double-end action plunger is cylindrical at two ends, the outer circle of the plunger is smooth, a groove which is matched with the driven shaft bearing for operation is arranged in the middle of the plunger, the plunger is matched with the driven shaft bearing for rotation to do radial repeated motion, the motion amplitude of the plunger is regulated by different positions of the transmission threaded holes, and the plunger is made of ceramics.
Drawings
FIG. 1 is a general structure diagram of a transmission structure of a miniature plunger pump;
FIG. 2 is a diagram of the main shaft of the transmission structure of the micro plunger pump;
FIG. 3 is a spindle axial view of a micro plunger pump drive structure;
FIG. 4 is a diagram of a driven shaft of a transmission structure of the miniature plunger pump;
fig. 5 is a diagram showing a plunger structure of a transmission structure of the micro plunger pump.
Number of drawings names: a main shaft 1; a clip spring groove 12; a drive screw hole 11; a drive screw hole 13; a drive screw hole 14; a driven shaft 2; a thread 21; a double-ended plunger 3; a groove 31; a clamp spring 4; a main shaft bearing 5; and a driven shaft bearing 6.
Detailed Description
1. The specific description of the matched 3 ten thousand large card burner pump is now given by way of example with reference to the accompanying drawings:
(1) The boiler is equipped with the required pressure of combustor pump needs miniature combustor pump 8 kilograms, and the combustor needs between 2~3 liter per hour, takes different flows according to the fuel combustion matter height, and the pump adopts this miniature plunger pump transmission structure to supporting miniature plunger pump adopts methyl alcohol as the fuel medium, according to combustion matter 2L fuel, needs the lift 80 meters, and required outer structure includes like figure 1: the main shaft 1, the driven shaft 2, the double-head acting plunger 3, the shaft clamp spring 4, the main shaft bearing 5 and the driven shaft bearing 6; the left end of the main shaft comprises a clamp spring groove, the clamp spring 4 clamps the main shaft bearing, the axial position of the main shaft bearing is positioned, the right end face is provided with transmission threaded holes with different concentricity matched with the driven shaft 2, the center size of the transmission threaded hole 11 is set to be 8mm, the center size of the transmission threaded hole 13 is set to be 7mm, the center size of the transmission threaded hole 14 is set to be 6mm, the right end is provided with the main shaft bearing, and the outer circle of the main shaft bearing 5 is in interference fit with the pump body; the left end of the driven shaft 2 is provided with threads 21 matched with a transmission screw hole, and the right end of the driven shaft is sleeved with the driven shaft 6; the outer circle of the driven shaft bearing 6 is precisely matched with the inner groove 31 of the double-end acting plunger 3, and the driven shaft bearing rotates to do radial repeated motion.
The left end screw thread of the driven shaft can be matched with different transmission screw holes according to actual flow requirements, and the outer screw thread is provided with a hexagon so as to be convenient for simple disassembly and installation, and the right side is matched with a driven shaft bearing and matched with a double-head plunger. When the driven shaft 2 is provided with the transmission screw hole 13, the driven shaft bearing rotates to do radial repeated motion, the unilateral amplitude is 3mm, and the flow is 3 liters per minute; when the driven shaft 2 is exchanged, the driven shaft 2 is opened by a spanner to withdraw from the screw, and then the screw hole 14 is arranged, the driven shaft bearing rotates to do radial repetitive motion, the single-side amplitude is 2mm, the flow rate is 2 liters per minute, the center distance is simply set and adjusted, so that the eccentricity of the driven shaft is changed, the radial operation amplitude of the plunger is changed, and the flow rate output is changed.
The double-end action plunger is cylindrical at two ends, the outer circle of the plunger is smooth, a groove which is matched with the driven shaft bearing for operation is arranged in the middle of the plunger, the plunger is matched with the driven shaft bearing for rotation to do radial repeated motion, the motion amplitude of the plunger is regulated by different positions of the transmission threaded holes, and the plunger is made of ceramics.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (1)
1. Miniature plunger pump transmission structure for small-flow combustor plunger pump, its characterized in that: the device comprises a main shaft, a driven shaft, a double-head acting plunger, a shaft clamp spring, a main shaft bearing and a driven shaft bearing; the main shaft comprises a clamp spring groove, the right end face is provided with transmission threaded holes matched with a driven shaft in different concentricity, the right end is provided with a main shaft bearing, and the outer circle of the main shaft bearing is in interference fit with the pump body; the left end of the driven shaft is provided with a threaded matched transmission threaded hole, and the right end of the driven shaft is sleeved with a driven bearing; the outer circle of the driven shaft bearing is in precise fit with the concave of the double-head acting plunger, and the driven shaft rotates along with the driven shaft bearing to do radial repeated motion;
2-4 transmission threaded holes with different concentricity are arranged on the right end surface of the main shaft, and the transmission threaded holes are distributed at different angles;
the left end screw thread of the driven shaft can be matched with different transmission screw holes according to actual flow requirements, and the right side is matched with a driven shaft bearing and matched with a double-head acting plunger;
the double-end action plunger piston is characterized in that two ends of the plunger piston are cylindrical, the outer circle of the plunger piston is a smooth mirror surface, a groove which is matched with the driven shaft bearing to operate is formed in the middle of the plunger piston, the plunger piston is matched with the driven shaft bearing to rotate so as to do radial repeated motion, the motion amplitude of the plunger piston is regulated by different positions of the transmission threaded holes, and the plunger piston is made of ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383272.4A CN107842479B (en) | 2017-12-20 | 2017-12-20 | Transmission structure of miniature plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383272.4A CN107842479B (en) | 2017-12-20 | 2017-12-20 | Transmission structure of miniature plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107842479A CN107842479A (en) | 2018-03-27 |
| CN107842479B true CN107842479B (en) | 2023-11-24 |
Family
ID=61684179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711383272.4A Active CN107842479B (en) | 2017-12-20 | 2017-12-20 | Transmission structure of miniature plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107842479B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1486112A (en) * | 1966-07-07 | 1967-06-23 | Nippon Kikai Keisho Kaisha | Adjustable volume pump or the like and its various applications |
| RU4563U1 (en) * | 1995-09-08 | 1997-07-16 | Акционерное общество открытого типа "Омское машиностроительное конструкторское бюро" | RADIAL PLUNGER MACHINE WITH VALVE DISTRIBUTION |
| CN2883674Y (en) * | 2005-05-31 | 2007-03-28 | 深圳清华大学研究院 | Crossing plunger pump or motor |
| CN202756201U (en) * | 2012-06-20 | 2013-02-27 | 杭州海胜制冷设备有限公司 | Single-drive double-cylinder compressor structure |
| CN203051025U (en) * | 2012-12-24 | 2013-07-10 | 陈琪 | Reciprocating type double-cylinder compressor |
| CN204941821U (en) * | 2015-09-01 | 2016-01-06 | 安徽美芝制冷设备有限公司 | Compressor crank shaft and the compressor with it |
| CN207960861U (en) * | 2017-12-20 | 2018-10-12 | 福建省福安市力德泵业有限公司 | Small Plunger Pump drive mechanism |
-
2017
- 2017-12-20 CN CN201711383272.4A patent/CN107842479B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1486112A (en) * | 1966-07-07 | 1967-06-23 | Nippon Kikai Keisho Kaisha | Adjustable volume pump or the like and its various applications |
| RU4563U1 (en) * | 1995-09-08 | 1997-07-16 | Акционерное общество открытого типа "Омское машиностроительное конструкторское бюро" | RADIAL PLUNGER MACHINE WITH VALVE DISTRIBUTION |
| CN2883674Y (en) * | 2005-05-31 | 2007-03-28 | 深圳清华大学研究院 | Crossing plunger pump or motor |
| CN202756201U (en) * | 2012-06-20 | 2013-02-27 | 杭州海胜制冷设备有限公司 | Single-drive double-cylinder compressor structure |
| CN203051025U (en) * | 2012-12-24 | 2013-07-10 | 陈琪 | Reciprocating type double-cylinder compressor |
| CN204941821U (en) * | 2015-09-01 | 2016-01-06 | 安徽美芝制冷设备有限公司 | Compressor crank shaft and the compressor with it |
| CN207960861U (en) * | 2017-12-20 | 2018-10-12 | 福建省福安市力德泵业有限公司 | Small Plunger Pump drive mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107842479A (en) | 2018-03-27 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant |