CN104819113A - Multi-effect inner curve radial plunger type hydraulic pump - Google Patents
Multi-effect inner curve radial plunger type hydraulic pump Download PDFInfo
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- CN104819113A CN104819113A CN201510154134.3A CN201510154134A CN104819113A CN 104819113 A CN104819113 A CN 104819113A CN 201510154134 A CN201510154134 A CN 201510154134A CN 104819113 A CN104819113 A CN 104819113A
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Abstract
The invention discloses an end surface flow distribution structure of a multi-effect inner curve radial plunger type hydraulic pump. The structure comprises a main shaft (1), a bearing end cover (2), a rolling bearing (3), a nut (4), a stud (5), a roller set (6), a first rotor (7), a flow distribution disc (8), a plunger (9), a second rotor (10), a third rotor (11), splines (12), a shell (13), a fourth rotor (14), a stator (15) and an end cover (16), wherein the main shaft (1) is connected with the first rotor (7), the second rotor (10), the third rotor (11) and the fourth rotor (14) through the splines (12). Each rotor is provided with a row of plunger pairs in the axial direction; and the plunger pairs are all arranged on the rotors. The end surface flow distribution disc distributes flows to shorten the axial size and to reduce the inner leakage, and is advanced compared with the shaft flow distribution. The body part is basically the same with a radial plunger pump of the shaft flow distribution. Compared with a traditional hydraulic pump, a variable-load multiple high-power inner curve hydraulic pump is low in starting and working speed, higher in flow, excellent in stability and strong in impact resistance, can adapt to the external load change, automatically adjusts the connecting number of pumps participating in work, and is suitable for the energy compression and accumulation in wind power generation and wave power generation systems.
Description
Technical field
The present invention relates to a kind of multiple-action inner curved oil hydraulic pump, oil hydraulic pump is made up of critical pieces such as stator, rotor and plunger groups, and the inwall of stator is made up of some sections of uniform, identical curved surfaces of shape.
Background technique
Current domestic multiple-action inner curved oil hydraulic pump choosing all adopts radial axle distributing construction, shortcoming be due to processing, assembling and work time by factors such as External force interferences, pintle easily weares and teares and bites, and wearing and tearing post gap cannot auto-compensation, there is significant limitation.
In order to improve hydraulic pressure pump performance and life-span, release end face port plate structure abroad, as the domestic little use of Japan's day steel MC type hydraulic pressure horse end face port plate structure, about the data of this respect is still rare both at home and abroad, valve plate distribution structure is by the extensive concern of domestic and international research worker.
The present invention adopts multiple-action inner curved radial plunger type oil hydraulic pump, adopts multistage linking mode, is intended to realize low speed huge discharge, in wind-power generating system, effectively can improves space availability ratio, improve flow systematic function.
Summary of the invention
Multiple-action inner curved radial plunger type oil hydraulic pump.Comprise main shaft, bearing (ball) cover, rolling bearing, nut, stud, roller group, the first rotor, thrust plate, plunger, the second rotor, third trochanter, spline, housing, fourth trochanter, stator and end cap; Axially have four external spliness, the first rotor, the second rotor, third trochanter and fourth trochanter internal surface have internal spline, and main shaft is by splined the first rotor, the second rotor, third trochanter and fourth trochanter; The first rotor and the second rotor are symmetrical in the axial direction to be installed; Thrust plate is arranged between the first rotor and the second rotor, and the first rotor is provided with the end face that an end face of oil inlet and outlet and the second rotor be provided with oil inlet and outlet and is close to thrust plate end face respectively; Third trochanter is identical with the structure of the second rotor and thrust plate with the first rotor with the structure of thrust plate with fourth trochanter; Described stator inner surface adopts inner curve form, described the first rotor, the second rotor, third trochanter are identical with fourth trochanter structure, each rotor, becomes radioactivity to be evenly equipped with eight plunger holes, containing a plunger in each plunger hole diametrically, plunger body is provided with Returnning spring 18, under the effect of Returnning spring 18, plunger props up roller group, and roller group is connected with roller, under Returnning spring 18 acts on, the torus of roller and stator is close to all the time; Eight filler openings opened by thrust plate, eight oil outlets, and it alternately connects with oil inlet and outlet on rotor respectively, and main shaft can be installed in series four groups and above many group rotors.
Multiple-action inner curved radial plunger type oil hydraulic pump valve plate distribution adopts thrust plate flow, adopt back-to-balk type thrust plate between the first rotor and the second rotor, between third trochanter with fourth trochanter port plate structure and between the first rotor and the second rotor port plate structure identical.General structure is compact, and space availability ratio is high, improves the performance of flow system.
In each plunger hole, be provided with Returnning spring 18, make roller be close on the cam ring of stator in the plunger backhaul stage, guarantee the reliability of the multistage connection of oil hydraulic pump.Plunger, thrust plate adopt low friction media motive sealing, reduce the leakage of pump, make oil hydraulic pump have higher total efficiency.
The present invention adopts multiple-action inner curved radial plunger type oil hydraulic pump valve plate distribution mode, adopts multistage linking mode, can realize low speed huge discharge.In wind-power generating system, effectively can improve space availability ratio, improve flow systematic function.
Accompanying drawing explanation
Fig. 1 is present system structural drawing.
Fig. 2 is rotor radial sectional view.
In figure: 1-main shaft, 2-bearing (ball) cover 3-rolling bearing, 4-nut, 5-stud, 6-roller group, 7-the first rotor, 8-thrust plate, 9-plunger, 10-second rotor, 11-third trochanter, 12-spline 13-housing, 14-fourth trochanter, 15-stator, 16-end cap, 17-rotor, 18-Returnning spring.
Embodiment
Multiple-action inner curved radial plunger type oil hydraulic pump valve plate distribution project organization, is made up of main shaft 1, bearing (ball) cover 2, rolling bearing 3, nut 4, stud 5, roller group 6, the first rotor 7, thrust plate 8, plunger 9, second rotor 10, third trochanter 11, spline 12, housing 13, fourth trochanter 14, stator 15 and end cap 16.
Main shaft 1 has four external spliness on axle, and the first rotor 7, second rotor 10, third trochanter 11 and fourth trochanter 14 internal surface have internal spline, and main shaft is by splined the first rotor, the second rotor, third trochanter and fourth trochanter; The first rotor and the second rotor are symmetrical in the axial direction to be installed; Thrust plate is installed between the first rotor and the second rotor, and the first rotor is provided with the end face that an end face of oil inlet and outlet and the second rotor be provided with oil inlet and outlet and is close to thrust plate end face respectively; Third trochanter is identical with the structure of the second rotor and thrust plate with the first rotor with the structure of thrust plate with fourth trochanter.
Described stator inner surface adopts inner curve form, described the first rotor 7, second rotor 10, third trochanter 11 are identical with fourth trochanter 14 structure, each rotor, becomes radioactivity to be evenly equipped with eight plunger holes, containing a plunger in each plunger hole diametrically, plunger body is provided with Returnning spring 18, under the effect of Returnning spring 18, plunger props up roller group, and roller group is connected with roller, under Returnning spring 18 acts on, the torus of roller and stator is close to all the time; Thrust plate has 16 oil inlet and outlets, and it connects with oil inlet and outlet on rotor respectively, and main shaft can be installed in series four groups and above many group rotors.
Multiple-action inner curved radial plunger type oil hydraulic pump valve plate distribution adopts thrust plate flow, adopt thrust plate flow between the first rotor 7 and the second rotor 10, between third trochanter 11 with fourth trochanter 14 port plate structure and between the first rotor 7 and the second rotor 10 port plate structure identical.Because thrust plate is connected with stator, housing to drive into, oil outlet, hydraulic oil enters thrust plate by housing, and hydraulic oil leads working principle of the present invention by oil circuit in oil distribution casing:
Multiple-action inner curved radial plunger type oil hydraulic pump valve plate distribution project organization to be connected the first rotor 7, second rotor 10, third trochanter 11 and fourth trochanter 14 by main shaft 1, is equivalent to multiple oil hydraulic pump and realizes multistage linking.Housing drives into, oil outlet, hydraulic oil enters four oil distribution casings by oil circuit conducting in the housing, realizes valve plate distribution.
Claims (8)
1. multiple-action inner curved radial plunger type oil hydraulic pump valve plate distribution structure, it is characterized in that, comprise main shaft (1) bearing (ball) cover (2), rolling bearing (3), nut (4), stud (5), roller group (6), the first rotor (7), thrust plate (8), plunger (9), the second rotor (10), third trochanter (11), spline (12), housing (13), fourth trochanter (14), stator (15) and end cap (16); Main shaft (1) is by splined the first rotor (7) second rotor (10), third trochanter (11) and fourth trochanter (14).Each rotor has vertically row's trunk piston set, trunk piston set is all put shape and is arranged on rotor.The first rotor (7), the second rotor 10), third trochanter (11) and fourth trochanter (14) internal surface have internal spline, main shaft (1) is by splined the first rotor (7), the second rotor (10), third trochanter (11) and fourth trochanter (14); The first rotor (7) and the second rotor (10) are symmetrical in the axial direction to be installed; Described stator inner surface adopts inner curve form, and main shaft (1) is connected with stator exterior edge face by rolling bearing (3); Described the first rotor (7), the second rotor (10), third trochanter (11) are identical with fourth trochanter (14) structure, each rotor, radioactivity is become to be evenly equipped with eight plunger holes diametrically, containing a plunger (9) in each plunger hole, plunger (9) inside is provided with Returnning spring (18), under the effect of Returnning spring (18), the torus of roller and stator is close to all the time; Each rotor is axially arranging single plunger hole, and each rotor is totally 8 plunger holes.Thrust plate (8) has 16 oil inlet and outlets.
2. the multiple-action inner curved radial plunger type oil hydraulic pump of one according to claim 1, it is characterized in that, the first rotor (7) is provided with the end face that an end face of oil inlet and outlet and the second rotor (10) be provided with oil inlet and outlet and is close to thrust plate end face respectively, and third trochanter (11) is identical with the structure of thrust plate with the second rotor (10) with the first rotor (7) with the structure of thrust plate with fourth trochanter (14).
3. the multiple-action inner curved radial plunger type oil hydraulic pump of one according to claim 1, is characterized in that, upper four group rotors of described main shaft (1) take serial fashion when mounted, adopts the mode of multistage linking, can realize low speed huge discharge.
4. the multiple-action inner curved radial plunger type oil hydraulic pump of one according to claim 1, is characterized in that, described stator inner surface profile is curved form, and the torus of roller and stator is close to all the time, makes oil hydraulic pump ceaselessly oil suction and oil extraction.
5. the multiple-action inner curved radial plunger type oil hydraulic pump of one according to claim 1, it is characterized in that, containing a plunger in each plunger hole, plunger body is provided with Returnning spring, under the effect of Returnning spring, the torus of roller and stator is close to all the time.
6. the multiple-action inner curved radial plunger type oil hydraulic pump of one according to claim 1, is characterized in that, when mounted, four stators are fixed by equally distributed screw attachment.
7. the multiple-action inner curved radial plunger type oil hydraulic pump of one according to claim 1, it is characterized in that, housing drives into, oil outlet, hydraulic oil enters four thrust plates by oil circuit conducting in the housing, thrust plate is connected with stator by spline, realizes valve plate distribution.
8. the multiple-action inner curved radial plunger type oil hydraulic pump of one according to claim 1, is characterized in that, when mounted, guarantee rotor, axle and uniform splined central dead in line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154134.3A CN104819113A (en) | 2015-04-01 | 2015-04-01 | Multi-effect inner curve radial plunger type hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154134.3A CN104819113A (en) | 2015-04-01 | 2015-04-01 | Multi-effect inner curve radial plunger type hydraulic pump |
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| Publication Number | Publication Date |
|---|---|
| CN104819113A true CN104819113A (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154134.3A Pending CN104819113A (en) | 2015-04-01 | 2015-04-01 | Multi-effect inner curve radial plunger type hydraulic pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360075A (en) * | 2019-08-15 | 2019-10-22 | 南昌谱瑞斯天泵业有限公司 | A kind of radial direction multirow vertical piston pump |
| CN111779648A (en) * | 2020-07-10 | 2020-10-16 | 中国矿业大学 | Low-speed large-torque valve flow distribution inner curve radial plunger type high-water-base hydraulic motor |
| WO2023010392A1 (en) * | 2021-08-02 | 2023-02-09 | 宁波斯达弗液压传动有限公司 | Internally curved hydraulic motor capable of two-way oil distribution |
-
2015
- 2015-04-01 CN CN201510154134.3A patent/CN104819113A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360075A (en) * | 2019-08-15 | 2019-10-22 | 南昌谱瑞斯天泵业有限公司 | A kind of radial direction multirow vertical piston pump |
| CN111779648A (en) * | 2020-07-10 | 2020-10-16 | 中国矿业大学 | Low-speed large-torque valve flow distribution inner curve radial plunger type high-water-base hydraulic motor |
| CN111779648B (en) * | 2020-07-10 | 2021-07-20 | 中国矿业大学 | Low-speed large-torque valve flow distribution inner curve radial plunger type high-water-base hydraulic motor |
| WO2022007325A1 (en) * | 2020-07-10 | 2022-01-13 | 中国矿业大学 | Low-speed high-torque valve flow distribution inner curve radial piston-type high-water-base hydraulic motor |
| WO2023010392A1 (en) * | 2021-08-02 | 2023-02-09 | 宁波斯达弗液压传动有限公司 | Internally curved hydraulic motor capable of two-way oil distribution |
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Application publication date: 20150805 |
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