CN103742378A - Radial plunger hydraulic pump adopting slide valves for flow distribution - Google Patents
Radial plunger hydraulic pump adopting slide valves for flow distribution Download PDFInfo
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- CN103742378A CN103742378A CN201310705746.8A CN201310705746A CN103742378A CN 103742378 A CN103742378 A CN 103742378A CN 201310705746 A CN201310705746 A CN 201310705746A CN 103742378 A CN103742378 A CN 103742378A
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Abstract
The invention discloses a radial plunger hydraulic pump adopting slide valves for flow distribution. Five plunger sets are arranged in the radial direction of the pump, and the flow distribution slide valves working in cooperation with the plunger sets are arranged on one sides of plungers side by side, and the flow distribution slide valves are communicated through flow channels formed in a pump body. The space in the pump body is fully utilized. Rotation of an eccentric wheel is converted into linear movement of the plungers through a five-star wheel, a friction face is lubricated through fluid dynamics, friction force is small, and simplicity and reliability are achieved. High-pressure oil liquid output by a discharge valve is led out, stroke return of the plungers is achieved by means of hydraulic force, the stroke return force is stable, noise is low and service life is long. The plunger sets of the pump are installed on the pump body from the outer portion, fast detaching can be achieved, and installing and maintaining are facilitated. Damping holes are formed in middle shafts of the plungers, the high-pressure oil liquid can be led to bottom faces, the bottom faces of the plungers are provided with sealing strips and oil chambers, the oil liquid after depressurization is filled into the oil chambers, lubricating oil films are formed between the five-star wheel and the bottom faces of the plungers, and the friction force is relieved.
Description
Technical field
The invention belongs to radial plunger oil hydraulic pump technical field, be specifically related to a kind of radial plunger oil hydraulic pump that adopts guiding valve flow.
Background technique
Design the important means that the oil hydraulic pump with better pressure and flow performance is development hydraulic transmission technology.
Radial plunger pump is that a class has that flow is large, the oil hydraulic pump little, volumetric efficiency advantages of higher that weares and teares, and is widely used in the hydraulic systems such as die casting, injection moulding, forging and stamping.Common radial plunger pump, it is joined oily mode and mostly is that one-way valve is joined oil or axle is joined oil, and one-way valve is joined and in oily mode, needed to use spring part, because spring in the course of the work need to be out of shape continually, therefore fatigue ruption easily occurs, and the noise and vibration in when work is larger; And adopt axle to join oily oil hydraulic pump, have processing difficulties, and flow part is difficult for realizing the shortcoming of excellent sealing.In addition, existing radial plunger pump, the backhaul of its plunger generally adopts return plate structure or uses retracting spring, for return plate, owing to being rigid construction, therefore it and be driven plain between face and must leave certain gap, to guarantee the smooth motion of plunger, this just needs to introduce in addition elastic element and makes up gap, otherwise just easily produces the leakage of fluid; For the mode that adopts spring return, the same with the spring in one-way valve, also there is the shortcoming that destructible and noise are large.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the invention is to propose a kind of radial plunger oil hydraulic pump that adopts guiding valve flow, have advantages of that compact structure, transmission are simple, backhaul power is stable, sealing is reliable, greasy property is good and be convenient to keep in repair.
In order to achieve the above object, the technological scheme that the present invention takes is:
A kind of radial plunger oil hydraulic pump that adopts guiding valve flow, comprise the pump housing 2, five plunger groups 29 are installed on the pump housing 2, they are radially evenly distributed on same plane, each plunger group 29 comprises plunger 4 and plunger gland 1, backhaul directional post 31 on plunger 4 inserts in the backhaul guide sleeve 27 on plunger gland 1, can move vertically, plunger 4 centers are provided with damping hole 30, plunger 4 bottoms are provided with plural circular arc sealing strip 33, they are divided into some grease chambeies 32 by plunger 4 bottom surfaces, plunger 4 is inserted in the plunger case hole 3 on the pump housing 2, plunger gland 1 is fixedly mounted on the pump housing 2, backhaul pressure oil duct on plunger gland 1 and force feed runner 34, guiding valve mounting hole 26 and backhaul guide sleeve 27 top cavity volumes are communicated with,
The first pump end cap 18 and the second pump end cap 6 are fixedly mounted on respectively the both sides of the pump housing 2, and the first axle head gland 21 and the second axle head gland 7 are fixedly mounted on respectively on the first pump end cap 18 and the second pump end cap 6;
On eccentric shaft 9, be provided with the first eccentric part 17 and the second eccentric part 8, their eccentric orientation differs 90 °;
Pentacle weel 13 is arranged on the outer ring of the second rolling bearing 15, the first pentacle weel gland 16 and the second pentacle weel gland 12 are fixedly mounted on respectively the both sides of pentacle weel 13, its seam is pushed down respectively the outer ring of the second rolling bearing 15 of corresponding side, and plunger 4 is pressed in by hydraulic coupling on the limit of pentacle weel 13 corresponding orientation;
On the pump housing 2, be radially evenly distributed with five guiding valve mounting holes 26, the orientation of its distribution is identical with the distribution orientation in plunger case hole 3, the inside of each guiding valve mounting hole 26 is all provided with joins cunning valve 22, joins cunning valve 22 bottoms and prop up the first eccentric part 17 of eccentric shaft 9;
One side of the pump housing 2 has been uniformly distributed circumferentially five plunger cavity turnover oilholes 24, its distribution orientation is identical with plunger case hole 3, each plunger cavity turnover oilhole 24 is communicated with the plunger case hole 3 of relevant position respectively with guiding valve mounting hole 26, the opposite side of the pump housing 2 has been uniformly distributed circumferentially five plunger cavity oil inlet holes 23 and five plunger cavity oil outlets 25, their distribution orientation is identical with plunger case hole 3, and occur in pairs, one of its distribution circle radius is less than the distribution radius of plunger cavity turnover oilhole 24, one is greater than the distribution radius of plunger cavity turnover oilhole 24, they are all communicated with guiding valve mounting hole 26, each plunger cavity oil inlet hole 23 is interconnected by the oil suction runner 36 on the pump housing 2, by total inlet port 37, from outside, suck fluid, each plunger cavity oil outlet 25 is interconnected by the force feed runner 34 on the pump housing 2, by total oil drain out 35, fluid is discharged, simultaneously, force feed runner 34 on the pump housing 2 is communicated with the backhaul pressure oil runner 28 on plunger gland 1, thereby make high-voltage oil liquid can act on plunger 4 and join cunning valve 22, and high-voltage oil liquid enters the grease chamber 32 of plunger 4 bottoms by damping hole 30.
Between described plunger 4 and plunger case hole 3, by being installed, guide ring and seal ring realize guiding and sealing.
Between described backhaul directional post 31 and backhaul guide sleeve 27, by being installed, guide ring and seal ring realize guiding and sealing.
Described plunger gland 1 inserts the part of the pump housing 2 and passes through seal with O ring.
Described joining between the first eccentric part 17 on cunning valve 22 and eccentric shaft 9 reduces friction by ball or roller are installed.
The present invention has the following advantages:
1) compact structure, transmission is simple.This pump is disposed radially five plunger groups 29, is arranged side by side in a side of plunger 4 with the flow guiding valve of plunger group 29 cooperatings, and the connection between flow guiding valve is realized by the runner of offering on the pump housing 2, takes full advantage of like this space in the pump housing 2.By pentacle weel 13, the rotation of eccentric shaft 9 is converted into the straight line motion of plunger 4, rubbing surface adopts hydrodynamic lubrication, and frictional force is little, simple and reliable.
2) utilize hydraulic coupling backhaul, backhaul power is stable, and noise is little, the life-span is long.Traditional radial plunger oil hydraulic pump provides backhaul power to realize the backhaul of plunger 4 by spring conventionally, complex structure, spring design difficulty, and because spring needs to-and-fro motion frequently, therefore easily there is fatigue ruption, radial plunger oil hydraulic pump in the present invention, has saved spring structure, and the high-voltage oil liquid of expulsion valve output is drawn, act on plunger 4, rely on hydraulic coupling to make plunger 4 backhauls, backhaul power is steady, and has advantages of that noise is little and the life-span is long.
3) easy to maintenance.The plunger group 29 of this pump is arranged on the pump housing 2 from outside by screw, can realize dismounting fast, is easy for installation and maintenance.
4) between plunger 4 and pentacle weel 13, frictional force is little.On plunger 4 axis, be processed with damping hole 30, high-voltage oil liquid can be directed on bottom surface, plunger 4 bottom surfaces are provided with sealing strip 33 and grease chamber 32, and the fluid after step-down is full of grease chamber 32, can between pentacle weel 13 and plunger 4 bottom surfaces, form lubricant film, reduce frictional force.
5) sealing is reliable.In the oil circuit of this pump, active part adopts guide ring, the seal ring combination seal of standard, and sealing is reliable, is beneficial to the volumetric efficiency that improves pump.
Accompanying drawing explanation
Fig. 1 is axial sectional view of the present invention.
Fig. 2 is the sectional view in the A-A cross section of Fig. 1 of the present invention.
Fig. 3 is the axial sectional view of plunger 4 in the present invention.
Fig. 4 is the bottom view of plunger 4 in the present invention.
Fig. 5 is the radial view of eccentric shaft 9 in the present invention.
Fig. 6 is the sectional view in the B-B cross section of Fig. 1 of the present invention.。
Fig. 7 is the sectional view in the C-C cross section of Fig. 1 of the present invention.
Fig. 8 is the sectional view in the D-D cross section of Fig. 1 of the present invention.
Fig. 9 is that the eccentric shaft 9 in Fig. 1 of the present invention turns over the axial sectional view after 90 °.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of radial plunger oil hydraulic pump that adopts guiding valve flow, comprise the pump housing 2, five plunger groups 29 are installed on the pump housing 2, they are radially evenly distributed on same plane, each plunger group 29 comprises plunger 4 and plunger gland 1, backhaul directional post 31 on plunger 4 inserts in the backhaul guide sleeve 27 on plunger gland 1, can move vertically, plunger 4 centers are provided with damping hole 30, plunger 4 bottoms are provided with plural circular arc sealing strip 33, they are divided into some grease chambeies 32 by plunger 4 bottom surfaces, plunger 4 is inserted in the plunger case hole 3 on the pump housing 2, plunger gland 1 is fixedly mounted on the pump housing 2 by screw, backhaul pressure oil duct on plunger gland 1 and force feed runner 34, guiding valve mounting hole 26 and backhaul guide sleeve 27 top cavity volumes are communicated with,
With reference to Fig. 1, the first pump end cap 18 and the second pump end cap 6 are screwed respectively the both sides that are arranged on the pump housing 2, and the first axle head gland 21 and the second axle head gland 7 are screwed respectively and are arranged on the first pump end cap 18 and the second pump end cap 6;
With reference to Fig. 5, on eccentric shaft 9, be provided with the first eccentric part 17 and the second eccentric part 8, their eccentric orientation differs 90 °;
With reference to Fig. 1, eccentric shaft 9 is arranged in the pump housing 2, plural the first rolling bearing 20 is arranged on eccentric shaft 9 on the non-eccentricity shaft part of the pump housing 2 inside, between the first rolling bearing 20, with the first sleeve 19, separate, the inner ring of the first rolling bearing 20 props up the shoulder of eccentric shaft 9, the first axle head gland 21 is pushed down the outer ring of the first rolling bearing 20, plural the second rolling bearing 15 is arranged in the second eccentric part 8 of eccentric shaft 9, between the second rolling bearing 15, with the second sleeve 14, separate, the inner ring of the second rolling bearing 15 1 sides props up the shoulder on eccentric shaft 9, the inner ring of opposite side is compressed by quadruplet cylinder 5, quadruplet cylinder 5 and plural the 3rd rolling bearing 11 are arranged on the non-eccentricity shaft part of eccentric shaft 9, the 3rd rolling bearing 11 inner rings are pushed down quadruplet cylinder 5, between the 3rd adjacent rolling bearing 11, with the 3rd sleeve 10, separate, the outer ring of outermost the 3rd rolling bearing 11 is compressed by the second axle head gland 7, each part mentioned above is realized the axially locating to eccentric shaft 9 jointly, the first rolling bearing 20 and the 3rd rolling bearing 11 are bearing in respectively on the inner cylindrical surface of the first pump end cap 18 and the second pump end cap 6, jointly realize the supporting to eccentric shaft 9,
See figures.1.and.2, pentacle weel 13 is arranged on the outer ring of the second rolling bearing 15, the first pentacle weel gland 16 and the second pentacle weel gland 12 are screwed respectively the both sides that are arranged on pentacle weel 13, its seam is pushed down respectively the outer ring of the second rolling bearing 15 of corresponding side, realize the axially locating of pentacle weel 13, plunger 4 is pressed in by hydraulic coupling on the limit of pentacle weel 13 corresponding orientation;
With reference to Fig. 1 and Fig. 6, on the pump housing 2, be radially evenly distributed with five guiding valve mounting holes 26, the orientation of its distribution is identical with the distribution orientation in plunger case hole 3, and the inside of each guiding valve mounting hole 26 is all provided with joins cunning valve 22, joins cunning valve 22 bottoms and prop up the first eccentric part 17 of eccentric shaft 9;
With reference to Fig. 1, Fig. 7 and Fig. 8, one side of the pump housing 2 has been uniformly distributed circumferentially five plunger cavity turnover oilholes 24, its distribution orientation is identical with plunger case hole 3, each plunger cavity turnover oilhole 24 is communicated with the plunger case hole 3 of relevant position respectively with guiding valve mounting hole 26, the opposite side of the pump housing 2 has been uniformly distributed circumferentially five plunger cavity oil inlet holes 23 and five plunger cavity oil outlets 25, their distribution orientation is identical with plunger case hole 3, and occur in pairs, one of its distribution circle radius is less than the distribution radius of plunger cavity turnover oilhole 24, one is greater than the distribution radius of plunger cavity turnover oilhole 24, they are all communicated with guiding valve mounting hole 26, each plunger cavity oil inlet hole 23 is interconnected by the oil suction runner 36 on the pump housing 2, by total inlet port 37, from outside, suck fluid, each plunger cavity oil outlet 25 is interconnected by the force feed runner 34 on the pump housing 2, by total oil drain out 35, fluid is discharged, simultaneously, force feed runner 34 on the pump housing 2 is communicated with the backhaul pressure oil runner 28 on plunger gland 1, thereby make high-voltage oil liquid can act on plunger 4 and join cunning valve 22, and high-voltage oil liquid enters the grease chamber 32 of plunger 4 bottoms by damping hole 30.
Between described plunger 4 and plunger case hole 3, by being installed, guide ring and seal ring realize guiding and sealing.
Between described backhaul directional post 31 and backhaul guide sleeve 27, by being installed, guide ring and seal ring realize guiding and sealing.
Described plunger gland 1 inserts the part of the pump housing 2 and passes through seal with O ring.
Described joining between the first eccentric part 17 on cunning valve 22 and eccentric shaft 9 can reduce friction by ball or roller are installed.
Working principle of the present invention:
See figures.1.and.2, when eccentric shaft 9 is turned round by prime mover driven, by the second rolling bearing 15 by transmission of power to pentacle weel 13, owing to plunger 4 bottom surfaces and the each limit of pentacle weel 13 pressing close to, limited the rotation of pentacle weel 13, therefore around center of rotation translation, plunger 4 does straight reciprocating motion to 13 of pentacle weels under the drive of pentacle weel 13 in plunger case hole 3 separately, can relative sliding between plunger 4 and the surface of contact of pentacle weel 13; In movement process, when plunger 4 is during to the interior motion in plunger case hole 3, power is provided by each limit of pentacle weel 13, and when plunger 4 is from plunger case hole 3 outwards during motion, driving force is provided by backhaul directional post 31 high pressure oil above.
With reference to Fig. 1, Fig. 5 and Fig. 9, the oil of joining of the present invention is realized by joining cunning valve 22, under the effect of high pressure oil, push against the first eccentric part 17, the eccentric direction of the first eccentric part 17 and the second eccentric part 8 differs 90 °, this makes when the second eccentric part 8 drive plunger 4 move upward, the first eccentric part 17 makes to join cunning valve 22 just in upper, allow the cavity volume on 3 tops, plunger case hole be communicated with plunger cavity oil outlet 25, thereby fluid can be discharged, when the second eccentric part 8 drive plunger 4 move downward, the first eccentric part 17 is to join cunning valve 22 in the next just, allow the cavity volume on 3 tops, plunger case hole be communicated with plunger cavity oil inlet hole 23, thereby fluid is drawn in plunger case hole 3.
Each plunger cavity oil inlet hole 23 is interconnected by the oil suction runner 36 on the pump housing 2, sucks fluid by total inlet port 37 from outside, each plunger cavity oil outlet 25 is interconnected by the force feed runner 34 on the pump housing 2, by total oil drain out 35, fluid is discharged, simultaneously, force feed runner 34 on the pump housing 2 is communicated with the backhaul pressure oil runner 28 on plunger gland 1, high-voltage oil liquid acts on backhaul directional post 31, by joining cunning valve 22, be pressed in the first eccentric part 17 of eccentric shaft 9, plunger 4 is pressed on pentacle weel 13, and high-voltage oil liquid can enter by damping hole 30 grease chamber 32 of plunger 4 bottoms, fluid after step-down is full of grease chamber 32, can between pentacle weel 13 and plunger 4 bottom surfaces, form lubricant film, reduce frictional force.
Claims (5)
1. one kind adopts the radial plunger oil hydraulic pump of guiding valve flow, comprise the pump housing (2), it is characterized in that: five plunger groups (29) are installed on the pump housing (2), they are radially evenly distributed on same plane, each plunger group (29) comprises plunger (4) and plunger gland (1), backhaul directional post (31) on plunger (4) inserts in the backhaul guide sleeve (27) on plunger gland (1), can move vertically, plunger (4) center is provided with damping hole (30), plunger (4) bottom is provided with plural circular arc sealing strip (33), they are divided into some grease chambeies (32) by plunger (4) bottom surface, plunger (4) is inserted in the plunger case hole (3) on the pump housing (2), plunger gland (1) is fixedly mounted on the pump housing (2), backhaul pressure oil duct on plunger gland (1) and force feed runner (34), guiding valve mounting hole (26) and backhaul guide sleeve (27) top cavity volume are communicated with,
The first pump end cap (18) and the second pump end cap (6) are fixedly mounted on respectively the both sides of the pump housing (2), and the first axle head gland (21) and the second axle head gland (7) are fixedly mounted on respectively on the first pump end cap (18) and the second pump end cap (6);
On eccentric shaft (9), be provided with the first eccentric part (17) and the second eccentric part (8), their eccentric orientation differs 90 °;
Eccentric shaft (9) is arranged in the pump housing (2), plural the first rolling bearing (20) is arranged on eccentric shaft (9) on the inner non-eccentricity shaft part of the pump housing (2), between the first rolling bearing (20), with the first sleeve (19), separate, the inner ring of the first rolling bearing (20) props up the shoulder of eccentric shaft (9), the first axle head gland (21) is pushed down the outer ring of the first rolling bearing (20), plural the second rolling bearing (15) is arranged in second eccentric part (8) of eccentric shaft (9), between the second rolling bearing (15), with the second sleeve (14), separate, the inner ring of the second rolling bearing (15) one sides props up the shoulder on eccentric shaft (9), the inner ring of opposite side is compressed by quadruplet cylinder (5), quadruplet cylinder (5) and plural the 3rd rolling bearing (11) are arranged on the non-eccentricity shaft part of eccentric shaft (9), the 3rd rolling bearing (11) inner ring is pushed down quadruplet cylinder (5), between the 3rd adjacent rolling bearing (11), with the 3rd sleeve (10), separate, the outer ring of outermost the 3rd rolling bearing (11) is compressed by the second axle head gland (7), the first rolling bearing (20) and the 3rd rolling bearing (11) are bearing in respectively on the inner cylindrical surface of the first pump end cap (18) and the second pump end cap (6),
Pentacle weel (13) is arranged on the outer ring of the second rolling bearing (15), the first pentacle weel gland (16) and the second pentacle weel gland (12) are fixedly mounted on respectively the both sides of pentacle weel (13), its seam is pushed down respectively the outer ring of second rolling bearing (15) of corresponding side, and plunger (4) is pressed in by hydraulic coupling on the limit of pentacle weel (13) corresponding orientation;
The pump housing (2) is upper is radially being evenly distributed with five guiding valve mounting holes (26), the orientation of its distribution is identical with the distribution orientation of plunger case hole (3), the inside of each guiding valve mounting hole (26) is all provided with joins cunning valve (22), joins cunning valve (22) bottom and prop up first eccentric part (17) of eccentric shaft (9);
One side of the pump housing (2) has been uniformly distributed circumferentially five plunger cavity turnover oilholes (24), its distribution orientation is identical with plunger case hole (3), each plunger cavity turnover oilhole (24) is communicated with the plunger case hole (3) of relevant position respectively with guiding valve mounting hole (26), the opposite side of the pump housing (2) has been uniformly distributed circumferentially five plunger cavity oil inlet holes (23) and five plunger cavity oil outlets (25), their distribution orientation is identical with plunger case hole (3), and occur in pairs, one of its distribution circle radius is less than the distribution radius of plunger cavity turnover oilhole (24), one is greater than the distribution radius of plunger cavity turnover oilhole (24), they are all communicated with guiding valve mounting hole (26), each plunger cavity oil inlet hole (23) is interconnected by the oil suction runner (36) on the pump housing (2), by total inlet port (37), from outside, suck fluid, each plunger cavity oil outlet (25) is interconnected by the force feed runner (34) on the pump housing (2), by total oil drain out (35), fluid is discharged, simultaneously, force feed runner (34) on the pump housing (2) is communicated with the backhaul pressure oil runner (28) on plunger gland (1), thereby make high-voltage oil liquid can act on plunger (4) and join cunning valve (22), and high-voltage oil liquid enters the grease chamber (32) of plunger (4) bottom by damping hole (30).
2. a kind of radial plunger oil hydraulic pump that adopts guiding valve flow according to claim 1, is characterized in that: between described plunger (4) and plunger case hole (3), by guide ring and seal ring are installed, realize guiding and sealing.
3. a kind of radial plunger oil hydraulic pump that adopts guiding valve flow according to claim 1, is characterized in that: between described backhaul directional post (31) and backhaul guide sleeve (27), by guide ring and seal ring are installed, realize guiding and sealing.
4. a kind of radial plunger oil hydraulic pump that adopts guiding valve flow according to claim 1, is characterized in that: described plunger gland (1) inserts the part of the pump housing (2) and passes through seal with O ring.
5. a kind of radial plunger oil hydraulic pump that adopts guiding valve flow according to claim 1, is characterized in that: described joining between the first eccentric part (17) on cunning valve (22) and eccentric shaft (9) reduces friction by ball or roller are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705746.8A CN103742378B (en) | 2013-12-19 | 2013-12-19 | A kind of radial plunger hydraulic pump adopting guiding valve flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705746.8A CN103742378B (en) | 2013-12-19 | 2013-12-19 | A kind of radial plunger hydraulic pump adopting guiding valve flow |
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| CN103742378A true CN103742378A (en) | 2014-04-23 |
| CN103742378B CN103742378B (en) | 2016-01-20 |
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| CN201310705746.8A Active CN103742378B (en) | 2013-12-19 | 2013-12-19 | A kind of radial plunger hydraulic pump adopting guiding valve flow |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259853A (en) * | 2014-09-11 | 2015-01-07 | 河南飞龙(芜湖)汽车零部件有限公司 | Automatic assembling machine for parts of brake pump piston cylinder |
| CN106286110A (en) * | 2016-08-17 | 2017-01-04 | 中国矿业大学 | Pendulum cylinder-type low-speed big high water base fluid pressure motor self-balancing valve type flow-distribution mechanism |
| CN108266372A (en) * | 2018-03-04 | 2018-07-10 | 太原理工大学 | A kind of valve type flow radial plunger emulsion pump |
| CN108302033A (en) * | 2018-03-04 | 2018-07-20 | 太原理工大学 | The axial scalable cylinder component of a kind of high water base pluger type hydraulic pump or motor |
| CN112412722A (en) * | 2020-11-05 | 2021-02-26 | 太原理工大学 | High-speed active lubrication radial static balance plunger pump for high-water-based medium |
| CN115539341A (en) * | 2022-10-31 | 2022-12-30 | 宁波钱湖石油设备有限公司 | Modularization reciprocating pump |
| US12055124B1 (en) | 2023-05-26 | 2024-08-06 | Huaqiao University | Four-quadrant radial piston hydraulic device and working method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259853A (en) * | 2014-09-11 | 2015-01-07 | 河南飞龙(芜湖)汽车零部件有限公司 | Automatic assembling machine for parts of brake pump piston cylinder |
| CN106286110A (en) * | 2016-08-17 | 2017-01-04 | 中国矿业大学 | Pendulum cylinder-type low-speed big high water base fluid pressure motor self-balancing valve type flow-distribution mechanism |
| CN106286110B (en) * | 2016-08-17 | 2018-04-03 | 中国矿业大学 | Pendulum cylinder-type low-speed big high water base fluid pressure motor self-balancing valve type flow-distribution mechanism |
| CN108266372A (en) * | 2018-03-04 | 2018-07-10 | 太原理工大学 | A kind of valve type flow radial plunger emulsion pump |
| CN108302033A (en) * | 2018-03-04 | 2018-07-20 | 太原理工大学 | The axial scalable cylinder component of a kind of high water base pluger type hydraulic pump or motor |
| CN108266372B (en) * | 2018-03-04 | 2024-02-20 | 太原理工大学 | Valve type flow distribution radial plunger emulsion pump |
| CN108302033B (en) * | 2018-03-04 | 2024-05-14 | 太原理工大学 | Axial telescopic cylinder assembly of high water-based plunger type hydraulic pump |
| CN112412722A (en) * | 2020-11-05 | 2021-02-26 | 太原理工大学 | High-speed active lubrication radial static balance plunger pump for high-water-based medium |
| CN115539341A (en) * | 2022-10-31 | 2022-12-30 | 宁波钱湖石油设备有限公司 | Modularization reciprocating pump |
| US12055124B1 (en) | 2023-05-26 | 2024-08-06 | Huaqiao University | Four-quadrant radial piston hydraulic device and working method thereof |
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|---|---|
| CN103742378B (en) | 2016-01-20 |
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Application publication date: 20140423 Assignee: JIANGSU DALONGKAI TECHNOLOGY Co.,Ltd. Assignor: XI'AN JIAOTONG University Contract record no.: X2023980034024 Denomination of invention: A Radial Plunger Hydraulic Pump with Spool Valve Flow Distribution Granted publication date: 20160120 License type: Common License Record date: 20230324 |
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