CN203362430U - Single-eccentric-shaft double-plunger four-cylinder high-pressure pump - Google Patents
Single-eccentric-shaft double-plunger four-cylinder high-pressure pump Download PDFInfo
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- CN203362430U CN203362430U CN 201320331637 CN201320331637U CN203362430U CN 203362430 U CN203362430 U CN 203362430U CN 201320331637 CN201320331637 CN 201320331637 CN 201320331637 U CN201320331637 U CN 201320331637U CN 203362430 U CN203362430 U CN 203362430U
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- plunger
- eccentric shaft
- plungers
- pressure chamber
- cylinder
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Abstract
The utility model relates to a plunger pump, in particular to a single-eccentric-shaft double-plunger four-cylinder high-pressure pump. A high-pressure chamber, a low-pressure chamber, a water inlet, a water outlet, four piston cylinders and two plungers are arranged in a pump body, the water inlet and the water outlet are communicated with the low-pressure chamber and the high-pressure chamber respectively, the four piston cylinders which are arranged in a criss-cross mode are communicated with the high-pressure chamber and the low-pressure chamber, and the two plungers are matched with the four piston cylinders. The lower middle portions of the two plungers are connected in a crossed mode, groove openings which are in linkage with an eccentric shaft are formed in the upper portions of the two plungers, and the four piston cylinders are communicated with the high-pressure chamber, the low-pressure chamber, the high-pressure chamber and the water outlet respectively through one-way valves. The single-eccentric-shaft double-plunger four-cylinder high-pressure pump is simple in structure, reasonable in design and easy to assemble, under the same water outflow quantity and the designed pressure, compared with the mass of a traditional plunger pump, the mass of the pump body can be reduced by 30-50%, the size is small, the weight is light, the single-eccentric-shaft double-plunger four-cylinder high-pressure pump can be used in a high-pressure fire extinguisher tool and spraying and atomizer tools for agriculture and forestry, and the working capability and the practical effect can be remarkably improved.
Description
Technical field
The utility model relates to a kind of reciprocating pump, particularly relates to a kind of plunger pump that adopts single eccentric shaft to drive.
Background technique
The main type of belt drive of traditional reciprocating pump has crankshaft rod structure, bent axle, bearing shell and return ring structure, and eccentric shaft, bearing shell and offsetting spring structure.Wherein the pump of the first structural type takes up room greatly, complex structure, and pulse is large, and noise is high; Although the pump structure of the second form is compact than the former, pump frictional force in running is large, and the pump housing easily generates heat, easy to wear; The pump of the third form, because adopt the elastic reset structure, due to the restriction of spring rigidity, can cause the decline of elastic performance, moreover, because the transmission shaft of drive plunger is rigidity, just there is the matching problem of transmission shaft and spring in this, must affect pump performance.
In order to overcome the narrow limitation of conventional reciprocating pump structure, comparatively general way is improved on the basis of existing eccentric shaft and bearing bush structure at present.The eccentric shaft-driven twin-tub of existing employing, three cylinders, four cylinders and even the more piston type reciprocating pump appearance of multi-cylinder body at present, but mostly these twin-tubs, three cylinders, four cylinder reciprocating pumps are simply to combine, can't solve the root problem that traditional cylinder-and-piston type reciprocating pump exists on the conventional construction basis.
Therefore, how to overcome the narrow limitation of conventional pump body structure, improve flow and the pressure of pump, the weight and volume of reduce pump itself, especially spray medicine, spray apparatus for high-pressure extinction facility and agricultural use, and major and immediate significance is arranged.Because can only manually bear operation when spray medicine for these high-pressure extinction facility and agricultural, spray apparatus are most, the weight of facility itself directly have influence on extinguishing agent that worker's individuality can bear and agricultural chemicals the number and staff's labor intensity; The performance of pump itself has directly determined the high-pressure extinction facility and the using effect of spraying medicine, spray apparatus for agricultural besides.
The model utility content
The utility model, for the prior art deficiency, proposes a kind of single eccentric shaft double-plunger four cylinder pumps, and volume is little, lightweight, the flow foot, and pressure is large, superior performance.
The technological scheme that the utility model adopts:
A kind of single eccentric shaft double-plunger four cylinder high-pressure service pumps, comprise pump main body (1), eccentric shaft (6), be provided with hyperbaric chamber and low pressure chamber in described pump main body (1), be provided with water inlet (2) in upper the connection with described low pressure chamber of pump main body (1), be communicated with hyperbaric chamber and be provided with osculum (3), in described pump main body (1), the described hyperbaric chamber of connection and low pressure chamber are provided with four piston/cylinders that are criss-cross arranged (10), be provided with two plungers (4 with described four piston/cylinders coupling, 5), the notch that two plunger middle upper portion respectively are provided with and eccentric shaft (6) coupling connects, two staggered linkings of plunger middle lower portion, by described notch while and eccentric shaft (6) transmission joint, four piston/cylinders (10) are communicated with described hyperbaric chamber and low pressure chamber and hyperbaric chamber and osculum by one-way valve (11) respectively.
Described single eccentric shaft double-plunger four cylinder high-pressure service pumps, upper plunger (4) in two plungers is Split type structure, in the middle of the next plunger (5) and the below of eccentric shaft joint notch is provided with for upper plunger (4) inserts and supplies the track groove of its operation, two-part (7 of upper plunger, 8) penetrate in the piston/cylinder at its place from both sides respectively and be connected in described track groove with the next plunger (5), then fixing, described upper plunger (4) is provided with the track groove for the next plunger (5) operation with respect to the another side of notch.
Described single eccentric shaft double-plunger four cylinder high-pressure service pumps, two plungers and corresponding piston/cylinder in one plane arrange, two upper and lower end faces of notch that are located at plunger intermediate interdigitated position are positioned at same plane, and vertical with the eccentric shaft center line.
Described single eccentric shaft double-plunger four cylinder high-pressure service pumps, eccentric shaft (6) and two plungers (4,5) end connected is provided with bearing (9), eccentric shaft is by described bearing (9) and two plungers (4,5) notch in center portion directly drives connection, in pump main body (1) and corresponding eccentric shaft and the bearing movable space, center portion of two plungers (4,5) is the oil sealing space.
Useful good effect of the present utility model:
1, the utility model single eccentric shaft double-piston four cylinder pumps, adopt the crisscross mode of twin columns with respect to four tank designs two plungers, because the cylinder number is many, automatic elimination pressure pulsation in service, delivery pressure is stable, and has effectively improved the flow of pump, with the plunger pump of the same power of tradition, compares, water flow can improve 20～40%, and discharge pressure can improve 10～30%.
2, the utility model single eccentric shaft double-piston four cylinder pumps, on the basis of single eccentric shaft twin cylinder pump, adopt eccentric shaft directly to drive two plungers, simplified reciprocal four cylinder pump structures, and compact structure easily realizes that delivery pressure is high, and flow is large, and volume is little, lightweight; Using effect is good.
3, the utility model single eccentric shaft double-piston four cylinder pumps, one of them plunger adopts Split type structure, penetrate the pump main body from pump main body two side ends respectively then fixing, and overlap with another plunger, then directly drive connection with same eccentric shaft, solved dexterously two vertical staggered plunger installation questions.
4, the utility model single eccentric shaft double-piston four cylinder pumps, simple in structure, reasonable in design, volume is little, lightweight; Assembling is simple, and easily maintenance, repair are durable in use.
5, the utility model single eccentric shaft double-plunger four cylinder pumps, eccentric shaft and plunger connect by eccentric shaft and a bearing-transmission, adopt the rolling friction mode, can greatly reduce the friction of parts connection place, reduce component wear, and transmission efficiency is high, efficient, laborsaving, energy-conservation, quiet.
6, the utility model single eccentric shaft double-piston four cylinder pumps, volume is little, lightweight, function is strong, in same water flow and design pressure situation, the quality of pump own can reduce by 30～50% compared to traditional plunger pump, is used in spray medicine, spray apparatus for high-pressure extinction facility and agricultural, can significantly improve work capacity and Competitive effects, greatly reduce operating personnel's labor intensity.
The accompanying drawing explanation
Fig. 1: the utility model single eccentric shaft double-piston four cylinder pump sectional structure schematic diagram;
Fig. 2: the utility model single eccentric shaft double-piston four cylinder pump main body sectional structure schematic diagram;
Fig. 3: the utility model single eccentric shaft double-piston four cylinder pump double-plunger layout schematic diagram;
Fig. 4 a-Fig. 4 d: the upper piston structure schematic diagram of single eccentric shaft double-piston four cylinder pump;
Fig. 5 a-Fig. 5 b: the next piston structure schematic diagram of single eccentric shaft double-piston four cylinder pump.
Embodiment
Embodiment one: referring to Fig. 1～Fig. 3, the utility model single eccentric shaft double-plunger four cylinder high-pressure service pumps, comprise pump main body 1, eccentric shaft 6, be provided with hyperbaric chamber and low pressure chamber in described pump main body 1, be communicated with and be provided with water inlet 2 with described low pressure chamber on pump main body 1, be communicated with hyperbaric chamber and be provided with osculum 3, be provided with four piston/cylinders that are criss-cross arranged 10 in the described hyperbaric chamber of the interior connection of pump main body 1 and low pressure chamber, be provided with two plungers with described four piston/cylinders coupling and (comprise upper plunger 4, the next plunger 5), two plunger middle upper portion respectively are provided with the notch connected with eccentric shaft 6 couplings, two plungers are in the staggered linking of middle lower portion, two plungers are by described notch while and eccentric shaft 6 transmission joint, four piston/cylinders 10 are communicated with described hyperbaric chamber and low pressure chamber and hyperbaric chamber and osculum by one-way valve 11 respectively.
Embodiment two: referring to Fig. 1～Fig. 5, and the single eccentric shaft double-plunger four cylinder high-pressure service pumps of the present embodiment, different from embodiment one, wherein a kind of assembly structure of two plungers is further disclosed.Wherein upper plunger 4 adopts Split type structure, in the middle of the next the plunger 5 and below of eccentric shaft joint notch is provided with for upper plunger 4 inserts and supplies the track groove of its operation, two-part of upper plunger (left part 8, right side part 7) penetrate in the piston/cylinder at its place from both sides respectively and be connected in described track groove with the next plunger 5, then fixing, upper plunger 4 also is provided with the track groove for the next plunger 5 operations with respect to the another side of notch.
In Fig. 4, Fig. 5, label 14 is the plunger packing.
The utility model single eccentric shaft double-plunger four cylinder high-pressure service pumps, two plungers and corresponding piston/cylinder are in one plane arranged, two upper and lower end faces of notch that are located at plunger intermediate interdigitated position are positioned at same plane, and vertical with the eccentric shaft center line, two notches simultaneously with described eccentric shaft transmission joint.
The utility model single eccentric shaft double-plunger four cylinder high-pressure service pumps, can be connected with motor or motor by reducing gear.Eccentric shaft 6 outboard ends connect reducing gear, or directly with motor or motor, are connected.
Embodiment three, embodiment four: referring to Fig. 1～Fig. 5, these two embodiments' single eccentric shaft double-plunger four cylinder high-pressure service pumps, differently from embodiment one and embodiment two respectively be, eccentric shaft 6 is provided with bearing 9 with the end that two plungers connect, eccentric shaft connects with the notch synchronizing direct-drive in two plunger center portions by described bearing 9, and in pump main body 1 and corresponding eccentric shaft and the bearing movable space, center portion of two plungers is the oil sealing space.
In Fig. 3, label 12 is water-stop, and 13 is oil seal, and each piston/cylinder all is furnished with.
Embodiment five: referring to Fig. 1～Fig. 5, the single eccentric shaft double-plunger four cylinder high-pressure service pumps of the present embodiment, different from aforementioned each embodiment is, one side of pump main body 1 is provided with reducing gear, eccentric shaft 6 connects external impetus (petrol engine, diesel engine or motor) by retarder 15, in Fig. 2, label 16 is driving gear, and 17 is driven gear, and 18 is driving shaft.Eccentric shaft 6 is connected with driven gear 17, and driving gear 16 is connected with driving shaft 18, and driving shaft connects external impetus.
Claims (5)
1. single eccentric shaft double-plunger four cylinder high-pressure service pumps, comprise pump main body (1), eccentric shaft (6), be provided with hyperbaric chamber and low pressure chamber in described pump main body (1), be provided with water inlet (2) in upper the connection with described low pressure chamber of pump main body (1), be communicated with hyperbaric chamber and be provided with osculum (3), it is characterized in that: in described pump main body (1), the described hyperbaric chamber of connection and low pressure chamber are provided with four piston/cylinders that are criss-cross arranged (10), be provided with two plungers (4 with described four piston/cylinders coupling, 5), the notch that two plunger middle upper portion respectively are provided with and eccentric shaft (6) coupling connects, two staggered linkings of plunger middle lower portion, by described notch while and eccentric shaft (6) transmission joint, four piston/cylinders (10) are communicated with described hyperbaric chamber and low pressure chamber and hyperbaric chamber and osculum by one-way valve (11) respectively.
2. single eccentric shaft double-plunger four cylinder high-pressure service pumps according to claim 1, it is characterized in that: the upper plunger (4) in two plungers is Split type structure, in the middle of the next plunger (5) and the below of eccentric shaft joint notch is provided with for upper plunger (4) inserts and supplies the track groove of its operation, two-part (7 of upper plunger, 8) penetrate in the piston/cylinder at its place from both sides respectively and be connected in described track groove with the next plunger (5), then fixing, described upper plunger (4) is provided with the track groove for the next plunger (5) operation with respect to the another side of notch.
3. single eccentric shaft double-plunger four cylinder high-pressure service pumps according to claim 1 and 2, it is characterized in that: two plungers and corresponding piston/cylinder are in one plane arranged, two upper and lower end faces of notch that are located at plunger intermediate interdigitated position are positioned at same plane, and vertical with the eccentric shaft center line.
4. single eccentric shaft double-plunger four cylinder high-pressure service pumps according to claim 3, it is characterized in that: described eccentric shaft (6) and two plungers (4,5) end connected is provided with bearing (9), eccentric shaft is by described bearing (9) and two plungers (4,5) notch in center portion directly drives connection, in pump main body (1) and corresponding eccentric shaft and the bearing movable space, center portion of two plungers (4,5) is the oil sealing space.
5. single eccentric shaft double-plunger four cylinder high-pressure service pumps according to claim 1 and 2, it is characterized in that: described eccentric shaft (6) and two plungers (4,5) end connected is provided with bearing (9), eccentric shaft is by described bearing (9) and two plungers (4,5) notch in center portion directly drives connection, in pump main body (1) and corresponding eccentric shaft and the bearing movable space, center portion of two plungers (4,5) is the oil sealing space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320331637 CN203362430U (en) | 2013-06-09 | 2013-06-09 | Single-eccentric-shaft double-plunger four-cylinder high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320331637 CN203362430U (en) | 2013-06-09 | 2013-06-09 | Single-eccentric-shaft double-plunger four-cylinder high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362430U true CN203362430U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320331637 Expired - Lifetime CN203362430U (en) | 2013-06-09 | 2013-06-09 | Single-eccentric-shaft double-plunger four-cylinder high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277277A (en) * | 2013-06-09 | 2013-09-04 | 韩竞飞 | Single-eccentric-shaft double-plunger four-cylinder high pressure pump |
| CN107313911A (en) * | 2017-06-19 | 2017-11-03 | 肖福俊 | The cylinder plunger pump of novel high-performance four |
-
2013
- 2013-06-09 CN CN 201320331637 patent/CN203362430U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277277A (en) * | 2013-06-09 | 2013-09-04 | 韩竞飞 | Single-eccentric-shaft double-plunger four-cylinder high pressure pump |
| CN107313911A (en) * | 2017-06-19 | 2017-11-03 | 肖福俊 | The cylinder plunger pump of novel high-performance four |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20150812 |
|
| RGAV | Abandon patent right to avoid regrant |