CN109356847B - Quantitative ball plug pump - Google Patents
Quantitative ball plug pump Download PDFInfo
- Publication number
- CN109356847B CN109356847B CN201811392620.9A CN201811392620A CN109356847B CN 109356847 B CN109356847 B CN 109356847B CN 201811392620 A CN201811392620 A CN 201811392620A CN 109356847 B CN109356847 B CN 109356847B
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- China
- Prior art keywords
- rotor
- flow distribution
- pressure
- distribution shaft
- cavity
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to the technical field of hydraulic pressure, in particular to a quantitative ball plug pump. Including pump case, end cover, distributing shaft, main shaft, rotor, its characterized in that: the pump shell is of a hollow cavity structure, the top of the pump shell is open and is matched with the end cover, the lower end of the main shaft penetrates through the upper end of the end cover and is inserted into the cavity of the pump shell, the insertion end of the main shaft is in threaded fit with a booster turbine, and the booster turbine is fixedly connected with the rotor; the center of the bottom of the pump shell is provided with a through hole, the upper end of the flow distribution shaft penetrates through the through hole at the bottom of the pump shell and is inserted into the flow distribution shaft and is fixedly connected with the flow distribution shaft, a water outlet cavity is arranged in the flow distribution shaft, and a water outlet of the water outlet cavity is arranged at one side of the flow distribution shaft; the quantitative ball plug pump disclosed by the invention can be used for self-regulating the self-output pressure, so that the influence of an input link of a hydraulic system is reduced, the output performance of the quantitative ball plug pump meets the setting requirement of the system, and the quantitative ball plug pump is more stable and efficient to operate.
Description
Technical Field
The invention relates to the technical field of hydraulic pressure, in particular to a quantitative ball plug pump.
Background
The hydraulic pump is the heart of the hydraulic system, and thus the performance of the hydraulic pump affects the performance of the entire hydraulic system. The ball plug pump is further researched due to high flow and low noise, and a constant delivery pump is designed, which can self-regulate the self-output pressure, reduce the influence of the input link of the hydraulic system, ensure that the output performance of the ball plug pump meets the setting requirement of the system, and has more stable and efficient operation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, adapt to the actual needs and provide a quantitative ball plug pump.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the quantitative ball plug pump comprises a pump shell, an end cover, a flow distribution shaft, a main shaft and a rotor, wherein the pump shell is of a hollow cavity structure, the top of the pump shell is open and matched with the end cover, the lower end of the main shaft penetrates through the upper end of the end cover and is inserted into a cavity of the pump shell, a booster turbine is in threaded fit with the insertion end of the main shaft, and the booster turbine is fixedly connected with the rotor; the center of the bottom of the pump shell is provided with a through hole, the upper end of the flow distribution shaft penetrates through the through hole at the bottom of the pump shell and is inserted into the flow distribution shaft and is fixedly connected with the flow distribution shaft, a water outlet cavity is arranged in the flow distribution shaft, and a water outlet of the water outlet cavity is arranged at one side of the flow distribution shaft; the rotor is sleeved in the pump shell cavity of the flow distribution shaft insertion end, the outer wall of the flow distribution shaft insertion end is attached to the inner wall of the rotor and moves relatively, a negative pressure water inlet and a positive pressure water outlet are arranged on the side wall of the flow distribution shaft, the positive pressure water outlet is communicated with the water outlet cavity in the flow distribution shaft, the upper end of the negative pressure water inlet is communicated with the valve body gap of the flow distribution shaft, and a water inlet is arranged on the end cover at the upper end of the flow distribution shaft; a plurality of plug holes are formed in the side wall of the rotor at the same height of the negative pressure water inlet and the positive pressure water outlet at equal intervals, the plug holes penetrate through the rotor, a ball plug is arranged in each plug hole, a rotor sleeve is sleeved on the outer side of the rotor, and the diameter of the rotor sleeve is larger than the diameter of the rotor and smaller than the sum of the diameter of the rotor and the diameter of the ball plug; an elastic device is arranged on one side of the rotor sleeve; under the action of an elastic device, the elastic device deflects to one side of the elastic device and deviates from the vertical center line of a rotor, a motor drives a main shaft to rotate so as to drive the rotor to rotate, under the action of inertia force and centrifugal force, a ball plug is tightly attached to the inner wall of a stator sleeve and moves back and forth along a curve line track in the stator relative to the ball plug hole, so that the volume of a working cavity formed among the ball plug, the ball plug hole and a flow distribution shaft is periodically changed, when the ball plug moves from a place with small eccentricity to a place with large eccentricity, the volume of the working cavity is increased, thereby realizing low-pressure transmission medium suction, and conversely, when the ball plug moves from a place with large eccentricity to a place with small eccentricity, the volume of the working cavity is reduced, and high-pressure transmission medium is extruded out; when the pressure becomes smaller than the normal condition, the elastic force of the elastic device is larger than the pressure of the pressure cavity, so that the stator sleeve is far away from the central line, the volume change of the periodically-changed working cavity is increased, the drainage pressure is increased, and conversely, when the pressure becomes larger than the normal condition, the elastic force of the elastic device is smaller than the pressure of the pressure cavity, so that the stator sleeve is close to the central line, the volume change of the periodically-changed working cavity is reduced, and the drainage pressure is reduced, thereby ensuring that the output pressure is within the range specified by the design of the hydraulic pump.
The main shaft bottom is provided with a ball socket groove, the position corresponding to the top of the flow distribution shaft is provided with a ball socket groove, and the main shaft ball socket groove and the flow distribution shaft ball socket groove are internally provided with a ball socket for limiting.
The rotor upper end is provided with annular spacing groove, the turbo setting is in spacing groove and turbo outer wall and spacing groove inner wall laminating, turbo passes through bolt fixed connection with spacing groove.
Two water outlets of the water outlet cavity of the flow distribution shaft are arranged.
The elastic device comprises a spring, a spring base and a movable block, wherein the spring base and the movable block are of cylindrical structures, one sides of the cylindrical structures are provided with openings, the openings of the spring base are inserted into and fixed in through holes on one side of a pump shell, the opening sides of the movable block are inserted into the spring base and can move relatively, one side of the movable block is fixedly connected with a rotor sleeve, and springs are arranged in cavities between the spring base and the movable block; and a pressure cavity water inlet for balancing the pressure difference is arranged on the other side of the pump shell.
The invention has the beneficial effects that:
the variable-stiffness spring manufactured by adopting different parameter processing can change the variable-eccentricity stress requirement of the constant-displacement pump, so that the constant-displacement pump meets the output requirement in a certain range.
The quantitative ball plug pump disclosed by the invention can be used for self-regulating the self-output pressure, so that the influence of an input link of a hydraulic system is reduced, the output performance of the quantitative ball plug pump meets the setting requirement of the system, and the quantitative ball plug pump is more stable and efficient to operate.
The quantitative ball plug pump disclosed by the invention has the advantages of simple structure, easiness in processing, manufacturing and assembling and wider application range.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic vertical cross-section;
FIG. 3 is a horizontal cross-sectional view;
FIG. 4 is a schematic diagram of a flow distribution shaft;
FIG. 5 is a schematic view of a pump housing;
Fig. 6 is a schematic diagram of a main shaft and a boost turbine.
The water pump comprises a main shaft 1, a water inlet 2, an end cover 3, a pump shell 4, a pressure cavity 5, a water outlet cavity 6, a spring base 7, a flow distribution shaft 8, a pressurizing turbine 9, a rotor 10, a rotor sleeve 11, a ball socket 12, a ball plug 14, a spring 15, a movable block 16 and a water outlet cavity 17.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
See fig. 1-6.
The invention discloses a quantitative ball plug pump, which comprises a pump shell 4, an end cover 3, a flow distribution shaft 8, a main shaft 1 and a rotor 10, wherein the pump shell 4 is of a hollow cavity structure, the top of the pump shell 4 is open and matched with the end cover 3, the lower end of the main shaft 1 passes through the upper end of the end cover 3 and is inserted into the cavity of the pump shell 4, the insertion end of the main shaft 1 is in threaded fit with a booster turbine 9, and the booster turbine 9 is fixedly connected with the rotor 10; a through hole is formed in the center of the bottom of the pump shell 4, the upper end of the flow distribution shaft 8 penetrates through the through hole in the bottom of the pump shell 4 and is inserted into the flow distribution shaft 8 and is fixedly connected with the flow distribution shaft, a water outlet cavity 6 is formed in the flow distribution shaft 8, and a water outlet 17 of the water outlet cavity is formed in one side of the flow distribution shaft 8; the rotor 10 is sleeved in the cavity of the pump shell 4 at the insertion end of the flow distribution shaft 8, the outer wall of the insertion end of the flow distribution shaft 8 is attached to the inner wall of the rotor 10 and moves relatively, a negative pressure water inlet 18 and a positive pressure water outlet 19 are arranged on the side wall of the flow distribution shaft 8, the positive pressure water outlet 19 is communicated with the water outlet cavity 6 in the flow distribution shaft 8, the upper end of the negative pressure water inlet 18 is communicated with a petal gap of the flow distribution shaft 8, and a water inlet 2 is arranged on the end cover 3 at the upper end of the flow distribution shaft 8; a plurality of plug holes are formed in the side wall of the rotor 10 at the same height of the negative pressure water inlet 18 and the positive pressure water outlet 19 at equal intervals, the plug holes penetrate through the rotor 10, a ball plug 14 is arranged in each plug hole, a rotor sleeve 11 is sleeved on the outer side of the rotor 10, and the diameter of the rotor sleeve 11 is larger than the diameter of the rotor 10 and smaller than the sum of the diameter of the rotor 10 and the diameter of the ball plug 14; an elastic device is arranged on one side of the rotor sleeve 11; under the action of an elastic device, the rotor sleeve 11 deflects to one side of the elastic device and deviates from the vertical center line of the rotor 10, the motor drives the main shaft 1 to rotate so as to drive the rotor 10 to rotate, under the action of inertia force and centrifugal force, the ball plug 14 is tightly attached to the inner wall of the stator sleeve 11 and moves back and forth along a curve line track in the stator 10 relative to the ball plug hole, so that the volume of a working cavity formed among the ball plug, the ball plug hole and the flow distribution shaft is periodically changed, when the ball plug moves from a place with small eccentricity to a place with large eccentricity, the volume of the working cavity is increased, thereby realizing low-pressure transmission medium absorption, and conversely, when the ball plug moves from a place with large eccentricity to a place with small eccentricity, the volume of the working cavity is reduced, and high-pressure transmission medium is extruded; when the external conditions are caused by leakage, blockage and other reasons, the pressure of the output pipeline of the hydraulic pump changes, when the pressure becomes smaller than the normal conditions, the elastic force of the elastic device is larger than the pressure of the pressure cavity, so that the stator sleeve 11 is far away from the central line, the volume change of the working cavity which changes periodically is increased, the drainage pressure is increased, and conversely, when the pressure becomes larger than the normal conditions, the elastic force of the elastic device is smaller than the pressure of the pressure cavity, so that the stator sleeve 11 is close to the central line, the volume change of the working cavity which changes periodically is reduced, the drainage pressure is reduced, and the output pressure is ensured to be within the range specified by the design of the hydraulic pump.
The bottom of the main shaft 1 is provided with a ball socket groove, the position corresponding to the top of the flow distribution shaft 8 is provided with a ball socket groove, and the ball socket grooves of the main shaft 1 and the flow distribution shaft 8 are internally provided with a ball socket 12 for limiting.
The upper end of the rotor 10 is provided with an annular limiting groove, the booster turbine 9 is arranged in the limiting groove, the outer wall of the booster turbine 9 is attached to the inner wall of the limiting groove, and the booster turbine 9 is fixedly connected with the limiting groove through bolts.
Two water outlets 17 of the water outlet cavity of the flow distribution shaft 8 are arranged.
The elastic device comprises a spring 15, a spring base 7 and a movable block, wherein the spring base 7 and the movable block are of cylindrical structures with openings at one sides, the openings of the spring base 7 are inserted into and fixed in through holes at one side of the pump shell 4, the opening sides of the movable block are inserted into the spring base 7 and can move relatively, one side of the movable block is fixedly connected with the rotor sleeve 11, and springs are arranged in cavities between the spring base 7 and the movable block; the other side of the pump shell 4 is provided with a pressure cavity water inlet 5 for balancing the pressure difference.
The use principle of the invention is briefly described as follows:
The working process of the constant delivery pump in fig. 1 is that when a motor belt drives a booster turbine to rotate through a main shaft connection, the booster turbine is connected with a spring clamp and a rotor through pins, and then the rotor is driven to rotate, meanwhile, a ball plug follows the rotor to rotate, under the action of inertia force and centrifugal force, the ball plug is tightly attached to the inner wall of a stator to move, and meanwhile, the ball plug moves back and forth along a curve line track in the stator relative to the ball plug hole, so that the volume of a working cavity formed among the ball plug, the ball plug hole and a flow distribution shaft is periodically changed, when the ball plug moves from a place with small eccentricity to a place with large eccentricity, the volume of the working cavity is increased, thereby realizing low-pressure transmission medium suction, and conversely, when the ball plug moves from a place with large eccentricity to a place with small eccentricity, the volume of the working cavity is reduced, and high-pressure transmission medium is extruded. The ball plug continuously performs periodic movement, so that high-pressure transmission media are continuously output, the transmission media output hole is connected with a water inlet of a right-side pressure cavity of the rotor sleeve, when the output media pressure is larger than the acting force of the stiffness-variable spring at the moment, the rotor sleeve is pressed leftwards, the elasticity of the stiffness-variable spring is increased until balance, the eccentricity of the rotor and the rotor sleeve is reduced, the output media pressure is reduced, when the output media pressure is small, the rotor sleeve is pressed rightwards under the action of the stiffness-variable spring force, the eccentricity of the rotor and the rotor sleeve is increased, and the output media pressure is increased, so that the output media pressure of the constant displacement pump is automatically adjusted.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes or direct or indirect application in the relevant art utilizing the present specification and drawings are included in the scope of the present invention.
Claims (3)
1. The utility model provides a ration ball cock pump, includes pump case (4), end cover (3), water distribution shaft (8), main shaft (1), rotor (10), its characterized in that: the pump casing (4) is of a hollow cavity structure, the top of the pump casing (4) is open and is matched with the end cover (3), the lower end of the main shaft (1) penetrates through the upper end of the end cover (3) and is inserted into the cavity of the pump casing (4), the insertion end of the main shaft (1) is in threaded fit with the booster turbine (9), and the booster turbine (9) is fixedly connected with the rotor (10); the water distribution device is characterized in that a through hole is formed in the center of the bottom of the pump shell (4), the upper end of the flow distribution shaft (8) penetrates through the through hole in the bottom of the pump shell (4) and is inserted into the flow distribution shaft (8) and fixedly connected with the flow distribution shaft, a water outlet cavity (6) is formed in the flow distribution shaft (8), and a water outlet cavity water outlet (17) is formed in one side of the flow distribution shaft (8); the rotor (10) is sleeved in a cavity of a pump shell (4) at the insertion end of the flow distribution shaft (8), the outer wall of the insertion end of the flow distribution shaft (8) is attached to the inner wall of the rotor (10) and moves relatively, a negative pressure water inlet (18) and a positive pressure water outlet (19) are arranged on the side wall of the flow distribution shaft (8), the positive pressure water outlet (19) is communicated with a water outlet cavity (6) in the flow distribution shaft (8), the upper end of the negative pressure water inlet (18) is communicated with a petal gap of the flow distribution shaft (8), and a water inlet (2) is arranged on an end cover (3) at the upper end of the flow distribution shaft (8); a plurality of plug holes are formed in the side wall of the rotor (10) with the same height as the negative pressure water inlet (18) and the positive pressure water outlet (19) at equal intervals, the plug holes penetrate through the rotor (10), a ball plug (14) is arranged in each plug hole, a rotor sleeve (11) is sleeved on the outer side of the rotor (10), and the diameter of the rotor sleeve (11) is larger than the diameter of the rotor (10) and smaller than the sum of the diameter of the rotor (10) and the diameter of the ball plug (14); an elastic device is arranged on one side of the rotor sleeve (11); under the action of an elastic device, a rotor sleeve (11) deflects to one side of the elastic device and deviates from the vertical center line of a rotor (10), a motor drives a main shaft (1) to rotate so as to drive the rotor (10) to rotate, under the action of inertia force and centrifugal force, a ball plug (14) is tightly attached to the inner wall of the stator sleeve (11) and moves back and forth along a curve line track in the stator (10) relative to a ball plug hole, so that the volume of a working cavity formed among the ball plug, the ball plug hole and a flow distribution shaft is periodically changed, when the ball plug moves from a place with small eccentricity to a place with large eccentricity, the volume of the working cavity is increased, thereby realizing low-pressure transmission medium suction, and conversely, when the ball plug moves from a place with large eccentricity to a place with small eccentricity, the volume of the working cavity is reduced, and high-pressure transmission medium is extruded; when the external condition is leaked and blocked, the pressure of an output pipeline of the hydraulic pump is changed, when the pressure is smaller than the normal condition, the elastic force of the elastic device is larger than the pressure of the pressure cavity, so that the stator sleeve (11) is far away from the central line, the volume change of the periodically-changed working cavity is increased, the drainage pressure is increased, and conversely, when the pressure is larger than the normal condition, the elastic force of the elastic device is smaller than the pressure of the pressure cavity, so that the stator sleeve (11) is close to the central line, the volume change of the periodically-changed working cavity is reduced, and the drainage pressure is reduced, so that the output pressure is ensured to be within the range specified by the design of the hydraulic pump; the bottom of the main shaft (1) is provided with a ball socket groove, the position corresponding to the top of the flow distribution shaft (8) is provided with a ball socket groove, and ball sockets (12) for limiting are arranged in the ball socket groove of the main shaft (1) and the ball socket groove of the flow distribution shaft (8); two water outlets (17) of the water outlet cavity of the flow distribution shaft (8) are arranged.
2. A dosing ball plunger pump according to claim 1, wherein: the upper end of the rotor (10) is provided with an annular limiting groove, the booster turbine (9) is arranged in the limiting groove, the outer wall of the booster turbine (9) is attached to the inner wall of the limiting groove, and the booster turbine (9) is fixedly connected with the limiting groove through bolts.
3. A dosing ball plunger pump according to claim 1, wherein: the elastic device comprises a spring (15), a spring base (7) and a movable block, wherein the spring base (7) and the movable block (16) are of cylindrical structures with openings at one sides, the openings of the spring base (7) are inserted into and fixed in through holes at one side of a pump shell (4), the opening sides of the movable block (16) are inserted into the spring base (7) and can move relatively, one side of the movable block (16) is fixedly connected with a rotor sleeve (11), and a spring (15) is arranged in a cavity between the spring base (7) and the movable block (16); the other side of the pump shell (4) is provided with a pressure cavity water inlet (5) for balancing the pressure difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392620.9A CN109356847B (en) | 2018-11-21 | 2018-11-21 | Quantitative ball plug pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392620.9A CN109356847B (en) | 2018-11-21 | 2018-11-21 | Quantitative ball plug pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356847A CN109356847A (en) | 2019-02-19 |
| CN109356847B true CN109356847B (en) | 2024-05-03 |
Family
ID=65332541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811392620.9A Active CN109356847B (en) | 2018-11-21 | 2018-11-21 | Quantitative ball plug pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356847B (en) |
Families Citing this family (1)
| 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 |
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|---|---|---|---|---|
| WO2009152692A1 (en) * | 2008-06-18 | 2009-12-23 | Shao Ruixun | Low speed high-pressure vane pump for hydraulic bicycle |
| CN103216406A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Pump and motor all-in-one bulb stopper hydraulic pump capable of distributing oil by oil distribution disc |
| CN103591017A (en) * | 2013-11-11 | 2014-02-19 | 南昌尊荣泵业有限公司 | Middle and high-pressure radial pump with ballhead plungers |
| CN103603813A (en) * | 2013-11-11 | 2014-02-26 | 南昌尊荣泵业有限公司 | Turbocharging borehole immersed pump |
| CN106523350A (en) * | 2016-12-22 | 2017-03-22 | 苏州九合众成动力科技有限公司 | Adjustable inner curve-variable hydraulic pump or motor |
| CN107420300A (en) * | 2017-08-03 | 2017-12-01 | 南通大力锻压机床有限公司 | A kind of low-loss leaf formula ladder hydraulic press |
| CN209458114U (en) * | 2018-11-21 | 2019-10-01 | 南昌大学 | A kind of quantitative ball piston pump |
-
2018
- 2018-11-21 CN CN201811392620.9A patent/CN109356847B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009152692A1 (en) * | 2008-06-18 | 2009-12-23 | Shao Ruixun | Low speed high-pressure vane pump for hydraulic bicycle |
| CN103216406A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Pump and motor all-in-one bulb stopper hydraulic pump capable of distributing oil by oil distribution disc |
| CN103591017A (en) * | 2013-11-11 | 2014-02-19 | 南昌尊荣泵业有限公司 | Middle and high-pressure radial pump with ballhead plungers |
| CN103603813A (en) * | 2013-11-11 | 2014-02-26 | 南昌尊荣泵业有限公司 | Turbocharging borehole immersed pump |
| CN106523350A (en) * | 2016-12-22 | 2017-03-22 | 苏州九合众成动力科技有限公司 | Adjustable inner curve-variable hydraulic pump or motor |
| CN107420300A (en) * | 2017-08-03 | 2017-12-01 | 南通大力锻压机床有限公司 | A kind of low-loss leaf formula ladder hydraulic press |
| CN209458114U (en) * | 2018-11-21 | 2019-10-01 | 南昌大学 | A kind of quantitative ball piston pump |
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| Publication number | Publication date |
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| CN109356847A (en) | 2019-02-19 |
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