CN203879837U - Duplex plunger pump - Google Patents
Duplex plunger pump Download PDFInfo
- Publication number
- CN203879837U CN203879837U CN201320894909.7U CN201320894909U CN203879837U CN 203879837 U CN203879837 U CN 203879837U CN 201320894909 U CN201320894909 U CN 201320894909U CN 203879837 U CN203879837 U CN 203879837U
- Authority
- CN
- China
- Prior art keywords
- pump
- transmission shaft
- pump case
- plunger
- upper flange
- 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
Links
- 238000009826 distribution Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims description 6
- 210000003734 kidney Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a duplex plunger pump free of any oil distribution disc or pump body, wherein two single-stage plunger pumps are arranged in a single pump casing and are driven to rotate by a single transmission shaft to realize the radial oil distribution effect. The transmission shaft is provided with an end cap and the front part of the end cap is provided with an upper flange. The upper flange is internally provided with a large bearing and a swash plate. The front part of the upper flange is provided with the pump casing. The pump casing is internally provided with an oil distribution ring. The oil distribution ring is provided with pressure balancing grooves C, D and E, wherein the pressure balancing grooves C, D and E are not equal to one another in width. The oil distribution ring is internally provided with a one-piece cylinder. The lower part of the one-piece cylinder is provided with an oil distribution groove F. The lower part of the pump casing is provided with a lower flange. The lower flange is internally provided with a small bearing. The waist part of the transmission shaft is internally provided with a spring. A semi-circular retaining cap is arranged above the spring. A retainer plate is arranged above the semi-circular retaining cap. The lower part of a plunger sliding shoes is arranged in the hole of the one-piece cylinder. The upper part of the plunger sliding shoes is arranged in the hole of the retainer plate. The end plane of the plunger sliding shoes is arranged to cling to the swash plate. The left part of the pump casing is provided with an oil inlet A, and the right part of the pump casing is provided with an oil outlet B.
Description
Technical field
The utility model discloses a kind of hydraulic element, specifically a kind ofly both can do oil pump use, can make again the duplex plunger pump that oil motor is used.
Background technique
At present, duplex plunger pump both domestic and external is all to adopt cylinder body lower end surface to be close to plane on oil distribution casing, by pump housing kidney slot, realize axial oil distribution, the defect of this duplex plunger pump is that cylinder body and oil distribution casing surface of friction pair easily burn out and wear and tear under high speed, high pressure, and working life is short.Up to the present, also there is not yet on the market a kind ofly not only without oil distribution casing but also without the pump housing, but kidney slot by conjoined vat downside is realized and is radially joined oily duplex plunger pump.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provide a kind of both without oil distribution casing, again without the pump housing, but two structures are identical, flow and pressure equate, the single-stage plunger pump that axial force is cancelled out each other is arranged in same pump case, by same transmission shaft, drives conjoined vat and plunger piston slippery boots assembly to rotate, and realizes and radially joins oily duplex plunger pump.
The technical solution of the utility model
A duplex plunger pump, comprises transmission shaft, end cap, upper flange, large bearing, swash plate, pump case, distribution oil ring, conjoined vat, lower flange, little bearing, spring, plunger piston slippery boots assembly, return plate, semicircle headgear, filler opening A, oil outlet B, not wide relief groove C, D and distributing groove E, F etc. are provided with end cap on transmission shaft, are provided with upper flange before end cap, in upper flange the inside, are provided with large bearing and swash plate, are provided with pump case before upper flange, in pump case the inside, are provided with distribution oil ring, are provided with not wide relief groove C on distribution oil ring, D and distributing groove E, be provided with conjoined vat in distribution oil ring the inside, at conjoined vat downside, is provided with distributing groove F, below pump case, be provided with lower flange, in lower flange the inside, be provided with little bearing, in transmission shaft waist, be provided with spring, on spring, be provided with semicircle headgear, on cup head cover, be provided with return plate, plunger piston slippery boots assembly bottom is arranged in conjoined vat hole, and top is arranged in return plate hole, and swash plate is close in its Transverse plane setting, on the pump case left side, be provided with filler opening A, on pump case the right, be provided with oil outlet B.
The beneficial effects of the utility model are: the utility model is compared with current duplex plunger pump both domestic and external:
(1) oil distribution casing and the pump housing have been reduced, but two structures are identical, flow and pressure equate, the single-stage plunger pump that axial force is cancelled out each other is arranged in same pump case, by same transmission shaft, drive conjoined vat and plunger piston slippery boots assembly to rotate, overall structure is simple, has saved raw material and processing charges.
(2) because conjoined vat downside is provided with distributing groove F, can radially join oil, do not need to carry out axial oil distribution through oil distribution casing and the pump housing, eliminated axial plane leakage, improved volumetric efficiency;
(3), because conjoined vat is radially to join oil by the F groove of downside, its Transverse plane, both without friction, without wearing and tearing, has reduced fault and frequency of maintenance again, has improved working life.
(4) pressure oil enters not wide relief groove C, the D of distribution oil ring, has reasonably guaranteed that conjoined vat operates steadily, and makes it in running up, obtain sufficient lubrication simultaneously, and operational noise is low, and manufacturing efficiency is high, good in economic efficiency.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present utility model
Embodiment
As shown in the figure, a kind of both without oil distribution casing, again without the pump housing, but two structures are identical, flow equates, the single-stage plunger pump that axial force is cancelled out each other is arranged in same pump case 6, by same transmission shaft 1, drive conjoined vat 8 and plunger piston slippery boots assembly 12 rotations, realize and radially join oily duplex plunger pump, comprise transmission shaft 1, end cap 2, upper flange 3, large bearing 4, swash plate 5, pump case 6, distribution oil ring 7, conjoined vat 8, lower flange 9, little bearing 10, spring 11, plunger piston slippery boots assembly 12, return plate 13, semicircle headgear 14, filler opening A, oil outlet B, not wide relief groove C, D and distributing groove E, F etc.At transmission shaft 1, be provided with end cap 2 above, at end cap 2, be provided with upper flange 3 above, in upper flange 3 the insides, be provided with large bearing 4 and swash plate 5, at upper flange 3, be provided with pump case 6 above, in pump case 6 the insides, be provided with distribution oil ring 7, on distribution oil ring 7, be provided with not wide relief groove C, D and distributing groove E, in distribution oil ring 7 the insides, be provided with conjoined vat 8, at conjoined vat 8 downsides, be provided with distributing groove F, below pump case 6, be provided with lower flange 9, in lower flange 9 the insides, be provided with little bearing 10, in transmission shaft 1 waist, be provided with spring 11, on spring 11, be provided with semicircle headgear 14, the bottom of plunger piston slippery boots assembly 12 is arranged in conjoined vat 8 holes, top is arranged in return plate 13 holes, swash plate 5 is close in its Transverse plane setting, on pump case 6 left sides, be provided with filler opening A, on pump case 6 the right, be provided with oil outlet B.
Claims (2)
1. duplex plunger pump, comprises transmission shaft (1), end cap (2), upper flange (3), large bearing (4), swash plate (5), pump case (6), distribution oil ring (7), conjoined vat (8), lower flange (9), little bearing (10), spring (11), plunger piston slippery boots assembly (12), return plate (13), semicircle headgear (14), filler opening A, oil outlet B, not wide relief groove C, D and distributing groove E, F etc., is characterized in that: on transmission shaft (1), be provided with end cap (2), at end cap (2), be provided with upper flange (3) above, in upper flange (3) the inside, be provided with large bearing (4) and swash plate (5), at upper flange (3), be provided with pump case (6) above, in pump case (6) the inside, be provided with distribution oil ring (7), on distribution oil ring (7), be provided with not wide relief groove C, D and distributing groove E, in distribution oil ring (7) the inside, be provided with conjoined vat (8), at conjoined vat (8) downside, be provided with distributing groove F, below pump case (6), be provided with lower flange (9), in lower flange (9) the inside, be provided with little bearing (10), in transmission shaft (1) waist, be provided with spring (11), on spring (11), be provided with semicircle headgear (14), the bottom of plunger piston slippery boots assembly (12) is arranged in conjoined vat (8) hole, top is arranged in return plate (13) hole, swash plate (5) is close in its end face setting, on pump case (6) left side, is provided with filler opening A, on pump case (6) the right, be provided with oil outlet B.
2. duplex plunger pump according to claim 1, it is characterized in that: two structures are identical, flow and pressure equate, the single-stage plunger pump that axial force is cancelled out each other is arranged in same pump case (6), by same transmission shaft (1), drives conjoined vat (8) and plunger piston slippery boots assembly (12) rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894909.7U CN203879837U (en) | 2013-12-27 | 2013-12-27 | Duplex plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894909.7U CN203879837U (en) | 2013-12-27 | 2013-12-27 | Duplex plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879837U true CN203879837U (en) | 2014-10-15 |
Family
ID=51680338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320894909.7U Expired - Fee Related CN203879837U (en) | 2013-12-27 | 2013-12-27 | Duplex plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879837U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484962A (en) * | 2015-12-18 | 2016-04-13 | 浙江工业大学 | Two-dimensional dual axial piston pump |
| CN106593537A (en) * | 2015-10-15 | 2017-04-26 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN110374832A (en) * | 2019-08-26 | 2019-10-25 | 张意 | A kind of variable radial matches oil pump |
| CN110513261A (en) * | 2019-09-04 | 2019-11-29 | 燕山大学 | A kind of axial plunger pump of symmetric double valve plate |
-
2013
- 2013-12-27 CN CN201320894909.7U patent/CN203879837U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593537A (en) * | 2015-10-15 | 2017-04-26 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN105484962A (en) * | 2015-12-18 | 2016-04-13 | 浙江工业大学 | Two-dimensional dual axial piston pump |
| CN110374832A (en) * | 2019-08-26 | 2019-10-25 | 张意 | A kind of variable radial matches oil pump |
| CN110374832B (en) * | 2019-08-26 | 2024-02-20 | 周卫东 | Variable radial oil distribution pump |
| CN110513261A (en) * | 2019-09-04 | 2019-11-29 | 燕山大学 | A kind of axial plunger pump of symmetric double valve plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN LIWEI HYDRAULIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: ZHANG JIAN Effective date: 20141106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 422001 SHAOYANG, HUNAN PROVINCE TO: 411228 XIANGTAN, HUNAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141106 Address after: 411228 Hunan city of Xiangtan province Tianyi demonstration zone Begonia Road No. 428 Patentee after: Hunan Liwei Hydraulic Equipment Co., Ltd. Address before: 422001 No. 22, No. 408, dormitory, hydraulic parts factory, Hunan, Shaoyang Patentee before: Zhang Jian |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20191227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |