CN209458114U - A kind of quantitative ball piston pump - Google Patents
A kind of quantitative ball piston pump Download PDFInfo
- Publication number
- CN209458114U CN209458114U CN201821922503.4U CN201821922503U CN209458114U CN 209458114 U CN209458114 U CN 209458114U CN 201821922503 U CN201821922503 U CN 201821922503U CN 209458114 U CN209458114 U CN 209458114U
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- pintle
- rotor
- pressure
- pump case
- cavity
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Abstract
The utility model relates to technical field of hydraulic pressure more particularly to a kind of quantitative ball piston pumps.Including pump case, end cap, pintle, main shaft, rotor, it is characterized by: the pump case is hollow cavity body structure, it opens wide at the top of the pump case and is matched with end cap, the main shaft lower end passes through the end cap upper end and is inserted into pump case cavity, the main shaft insertion end has been threadedly engaged charging turbine, and the charging turbine is fixedly connected with the rotor；The pump case bottom centre is provided with through hole, and the pintle upper end is inserted into the pintle across pump case bottom through hole and connection fixed thereto, and water outlet cavity is provided in the pintle, and the pintle side is provided with water outlet cavity water outlet；A kind of quantitative ball piston pump disclosed by the utility model can carry out self-control to from output pressure, reduce the influence because of hydraulic system input element itself, its output performance is made to reach the setting requirements of system, and operate it is more stable, efficiently.
Description
Technical field
The utility model relates to technical field of hydraulic pressure more particularly to a kind of quantitative ball piston pumps.
Background technique
Hydraulic pump is the heart of hydraulic system, therefore the performance of hydraulic pump affects the performance of entire hydraulic system.Bulb stopper
Pump because of its big flow, low noise has obtained further research, now devises a constant displacement pump, it can be to from output pressure
Self-control is carried out, the influence because of hydraulic system input element itself is reduced, its output performance is made to reach the setting requirements of system,
And operate it is more stable, efficiently.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, adapt to reality and need, and provide a kind of quantitative bulb stopper
Pump.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model are as follows: a kind of quantitative ball piston pump, packet
Include pump case, end cap, pintle, main shaft, rotor, the pump case is hollow cavity body structure, opened wide at the top of the pump case and with end
Lid matches, and the main shaft lower end passes through the end cap upper end and is inserted into pump case cavity, and the main shaft insertion end is threadedly engaged
There is charging turbine, the charging turbine is fixedly connected with the rotor；The pump case bottom centre is provided with through hole, the pintle
Upper end is inserted into the pintle across pump case bottom through hole and connection fixed thereto, is provided in the pintle
It is discharged cavity, the pintle side is provided with water outlet cavity water outlet；Suit in the pump case cavity of the pintle insertion end
There is rotor, the pintle insertion end outer wall and rotor inner wall fit and relative motion, is provided on the pintle side wall
Negative pressure water inlet and positive pressure water outlet, the positive pressure water outlet are connected to the water outlet cavity inside pintle, the negative pressure water inlet
The valve body gap area of mouthful upper end and pintle is provided with water inlet on the end cap of the pintle upper end；The negative pressure water inlet
Mouth runs through rotor with multiple consents, the consent is equidistantly provided in the mutually level rotor sidewall of positive pressure water outlet, each
It is provided with bulb stopper in the consent, the rotor outer sheath is equipped with rotor set, and the rotor set diameter is greater than root diameter and small
In the sum of root diameter and bulb stopper diameter；Rotor set side is provided with elastic device；Under normality, elastic device effect, to
The offset of elastic device side deviates the vertical centerline of rotor, and motor drives main axis to drive rotor to rotate, in inertia
Under the action of power and centrifugal force, bulb stopper is close to stator sleeve inner wall and is moved, while bulb stopper is along stator inner curve trajectory
Back and forth movement is made in opposite bulb stopper hole, makes the working cavity volume generating period formed between its bulb stopper, bulb stopper hole and pintle
Variation, when bulb stopper moves to the big place of eccentricity from the small place of eccentricity, working cavity volume becomes larger, to realize low
Pressure inhales driving medium, and when moving to the small place of eccentricity from the big place of eccentricity on the contrary, working cavity volume becomes smaller, will be high
Driving medium is pressed to extrude；When external condition is because of leakage, certain reasons such as blocking cause hydraulic pump output channel pressure to generate change
Change, when pressure becomes smaller less than normal condition, elastic device elastic force is greater than pressure cavity pressure, so that stator sleeve is remote to center line
From so that the working cavity volume volume change of mechanical periodicity increases, so that discharge pressure increases, on the contrary, when pressure becomes larger greatly
When normal condition, elastic device elastic force is less than pressure cavity pressure, so that stator sleeve is drawn close to center line, so that mechanical periodicity
Working cavity volume volume change reduces, so that discharge pressure is reduced, whereby to guarantee that output pressure is provided in design of hydraulic pump
Within the scope of.
The main shaft bottom is provided with ball-and-socket slot, and corresponding position is provided with ball-and-socket slot, institute at the top of the pintle
State the ball-and-socket being provided in main shaft ball-and-socket slot and pintle ball-and-socket slot for limit.
The rotor upper end is provided with cricoid limiting slot, and the charging turbine is arranged in the limiting slot and charging turbine
Outer wall is bonded with limiting slot inner wall, and the charging turbine is bolted to connection with limiting slot.
There are two the water outlet cavity water outlet settings of the pintle.
The elastic device includes spring, spring pedestal and movable block, and the spring pedestal and the movable block are
Side is equipped with the tubular structure of opening, and the spring pedestal opening is inserted and secured in the through hole of pump case side, described
Movable block open side is inserted into spring pedestal and can be with relative motion, and the movable block side is fixedly connected with rotor set, described
Spring is provided in cavity between spring pedestal and movable block；The pump case other side be provided with balance pressure difference pressure chamber into
The mouth of a river.
The utility model has the beneficial effects that:
The variable rate spring that a kind of quantitative ball piston pump disclosed by the invention can use different parameters to fabricate can be with
The change eccentricity force request for changing constant displacement pump makes the constant displacement pump meet a certain range of output requirement.
A kind of quantitative ball piston pump disclosed by the invention can carry out self-control to from output pressure, reduce because of hydraulic system
The influence of input element itself makes its output performance reach the setting requirements of system, and operate it is more stable, efficiently.
A kind of quantitative bulb stopper pump configuration disclosed by the invention is simple, and processing and manufacturing assembly is relatively easy to, and the scope of application is wider.
Detailed description of the invention
The utility model is described further with case study on implementation with reference to the accompanying drawing.
Fig. 1 is the external structure schematic diagram of the utility model；
Fig. 2 is sectional elevation schematic diagram；
Fig. 3 is horizontal sectional drawing；
Fig. 4 pintle schematic diagram；
Fig. 5 pump case schematic diagram；
Fig. 6 main shaft and charging turbine schematic diagram.
Wherein 1 main shaft, 2 water inlets, 3 end caps, 4 pump cases, 5 pressure chamber water inlets, 6 water outlet cavitys, 7 spring pedestals, 8 flows
Axis, 9 charging turbines, 10 rotors, 11 rotor sets, 12 ball-and-sockets, 14 bulb stoppers, 15 springs, 16 movable blocks, 17 water outlet cavity water outlets.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
Referring to Fig. 1-6.
Ball piston pump, including pump case 4, end cap 3, pintle 8, main shaft 1, rotor 10 are quantified the utility model discloses a kind of,
The pump case 4 is hollow cavity body structure, opens wide at the top of the pump case 4 and matches with end cap 3,1 lower end of main shaft passes through
3 upper end of end cap is inserted into 4 cavity of pump case, and 1 insertion end of main shaft has been threadedly engaged charging turbine 9, the pressurization whirlpool
Wheel 9 is fixedly connected with rotor 10；4 bottom centre of pump case is provided with through hole, and 8 upper end of pintle passes through the pump case
4 bottom through holes are inserted into the pintle 8 and connection fixed thereto, are provided with water outlet cavity 6, institute in the pintle 8
It states 8 side of pintle and is provided with water outlet cavity water outlet 17；Rotor is set in 4 cavity of pump case of 8 insertion end of pintle
10, the 8 insertion end outer wall of pintle fits with 10 inner wall of rotor and relative motion, is provided on 8 side wall of pintle
Negative pressure water inlet 18 and positive pressure water outlet 19, the positive pressure water outlet 19 is connected to the water outlet cavity 6 inside pintle 8, described
The valve body gap area of 18 upper end of negative pressure water inlet and pintle 8 is provided with water inlet on the end cap 3 of 8 upper end of pintle
2；Multiple consents, institute are equidistantly provided on the negative pressure water inlet 18 and mutually level 10 side wall of rotor of positive pressure water outlet 19
It states consent and is provided with bulb stopper 14 in rotor 10, each consent, 10 outer sheath of rotor is described equipped with rotor set 11
Rotor covers 11 diameters and is greater than 10 diameter of rotor and is less than the sum of 10 diameter of rotor and 14 diameter of bulb stopper；The rotor covers 11 sides and sets
It is equipped with elastic device；Under normality, elastic device effect, rotor set 11 is deviated to elastic device side, deviates the vertical of rotor 10
Center line, motor drives the rotation of main shaft 1 to drive rotor 10 to rotate, and under the action of inertia force and centrifugal force, bulb stopper 14 is tight
It is moved close to 11 inner wall of stator sleeve, while bulb stopper 14 makees round-trip fortune with respect to bulb stopper hole along 10 inner curve trajectory of stator
It is dynamic, change the working cavity volume generating period formed between its bulb stopper, bulb stopper hole and pintle, when bulb stopper is from eccentricity
When small place moves to eccentricity big place, working cavity volume becomes larger, thus realize low pressure inhale driving medium, on the contrary from
When the big place of eccentricity moves to eccentricity small place, working cavity volume becomes smaller, and high-voltage drive medium is extruded；When outer
Boundary's condition is because leakage, certain reasons such as blocking cause hydraulic pump output channel pressure to generate variation, when pressure becomes smaller less than normal
When condition, elastic device elastic force is greater than pressure cavity pressure, so that stator sleeve 11 is separate to center line, so that the work of mechanical periodicity
Cavity volume volume change increases, so that discharge pressure increases, on the contrary, when pressure becomes larger greater than normal condition, elastic device
Elastic force is less than pressure cavity pressure, so that stator sleeve 11 is drawn close to center line, so that the working cavity volume volume of mechanical periodicity becomes
Change and reduce so that discharge pressure is reduced, whereby to guarantee output pressure as defined in the design of hydraulic pump within the scope of.
1 bottom of main shaft is provided with ball-and-socket slot, and the 8 corresponding position in top of pintle is provided with ball-and-socket slot,
The ball-and-socket 12 for limit is provided in the 1 ball-and-socket slot of main shaft and 8 ball-and-socket slot of pintle.
10 upper end of rotor is provided with cricoid limiting slot, and the charging turbine 9 is arranged in the limiting slot and pressurization
9 outer wall of turbine is bonded with limiting slot inner wall, and the charging turbine 9 is bolted to connection with limiting slot.
There are two the settings of water outlet cavity water outlet 17 of the pintle 8.
The elastic device includes spring 15, spring pedestal 7 and movable block, the spring pedestal 7 and the movable block
It is the tubular structure that side is equipped with opening, 7 opening of spring pedestal is inserted and secured on the through hole of 4 side of pump case
It is interior, and can be with relative motion in the movable block open side insertion spring pedestal 7, the movable block side and rotor set 11 are fixed
It connects, is provided with spring in the cavity between the spring pedestal 7 and movable block；4 other side of pump case is provided with balance pressure
The pressure chamber water inlet 5 of difference.
The use principle of the utility model is summarized as follows:
The constant displacement pump course of work in Fig. 1 is to drive charging turbine rotation, charging turbine when motor band is connected by main shaft
Connect with spring clip with rotor by pin, and then drive rotor rotation, while bulb stopper follows rotor to rotate, inertia force with from
Under the action of mental and physical efforts, bulb stopper is close to stator inner wall and is moved, while bulb stopper is along the opposite bulb stopper of stator inner curve trajectory
Back and forth movement is made in hole, changes the working cavity volume generating period formed between its bulb stopper, bulb stopper hole and pintle, works as ball
When plug moves to eccentricity big place from the small place of eccentricity, working cavity volume becomes larger, to realize that low pressure inhales transmission
Medium, when moving to the small place of eccentricity from the big place of eccentricity on the contrary, working cavity volume becomes smaller, and high-voltage drive is situated between
Matter extrudes.Bulb stopper constantly carries out cycle movement, so that high-voltage drive medium is endlessly exported, and driving medium exports
Hole is connect with rotor set right atrial pressure chamber water inlet, when output medium pressure is greater than variable rate spring active force at this time, will be turned
Sub-set is pressed to the left, and variable rate spring elastic force increases until balance, the eccentricity that rotor is covered with rotor become smaller, and output medium pressure becomes
It is small, when output medium pressure is small, under the action of variable rate spring power, rotor set is pressed to the right, rotor covers inclined with rotor
Away from becoming larger, output medium pressure becomes larger the heart, to realize the output medium pressure of autonomous adjustment quantitative pump.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technical field,
It is also included in the patent protection scope of the utility model.
Claims (5)
1. a kind of quantitative ball piston pump, including pump case (4), end cap (3), pintle (8), main shaft (1), rotor (10), feature exists
In: the pump case (4) is hollow cavity body structure, opens wide and matches with end cap (3), the main shaft at the top of the pump case (4)
(1) lower end passes through the end cap (3) upper end and is inserted into pump case (4) cavity, and main shaft (1) insertion end has been threadedly engaged pressurization
Turbine (9), the charging turbine (9) are fixedly connected with rotor (10)；Pump case (4) bottom centre is provided with through hole, institute
Pintle (8) upper end is stated to be inserted into the pintle (8) across the pump case (4) bottom through hole and connection fixed thereto,
Water outlet cavity (6) is provided in the pintle (8), pintle (8) side is provided with water outlet cavity water outlet (17)；Institute
It states and is set with rotor (10) in pump case (4) cavity of pintle (8) insertion end, pintle (8) the insertion end outer wall and rotor
(10) inner wall fits and relative motion, is provided with negative pressure water inlet (18) and positive pressure water outlet on pintle (8) side wall
(19), the positive pressure water outlet (19) the water outlet cavity (6) internal with pintle (8) is connected to, on the negative pressure water inlet (18)
The valve body gap area with pintle (8) is held, is provided with water inlet (2) on the end cap (3) of pintle (8) upper end；It is described
Multiple consents, institute are equidistantly provided on negative pressure water inlet (18) and positive pressure water outlet (19) mutually level rotor (10) side wall
It states consent to be provided with bulb stopper (14) in rotor (10), each consent, rotor (10) outer sheath is equipped with rotor set
(11), rotor set (11) diameter is greater than rotor (10) diameter and is less than the sum of rotor (10) diameter and bulb stopper (14) diameter；
Rotor set (11) side is provided with elastic device；Under normality, elastic device effect, rotor set (11) is to elastic device side
Offset deviates the vertical centerline of rotor (10), and motor drives main shaft (1) rotation to drive rotor (10) to rotate, in inertia
Under the action of power and centrifugal force, bulb stopper (14) is close to stator sleeve (11) inner wall and is moved, while bulb stopper (14) is along stator
(10) inner curve trajectory makees back and forth movement with respect to bulb stopper hole, makes the working chamber formed between its bulb stopper, bulb stopper hole and pintle
The variation of body volume generating period, when bulb stopper moves to the big place of eccentricity from the small place of eccentricity, working cavity body
Product becomes larger, thus realize that low pressure inhales driving medium, when moving to the small place of eccentricity from the big place of eccentricity on the contrary, work
Cavity volume becomes smaller, and high-voltage drive medium is extruded；When external condition is because of leakage, certain reasons such as blocking cause hydraulic pump defeated
Pipeline pressure generates variation out, and when pressure becomes smaller less than normal condition, elastic device elastic force is greater than pressure cavity pressure, so that fixed
Sub-set (11) is separate to center line, so that the working cavity volume volume change of mechanical periodicity increases, so that discharge pressure increases,
On the contrary, elastic device elastic force is less than pressure cavity pressure, so that stator sleeve (11) Xiang Zhongxin when pressure becomes larger greater than normal condition
Line is drawn close, so that the working cavity volume volume change of mechanical periodicity reduces, so that discharge pressure is reduced, whereby to guarantee output
Within the scope of pressure is as defined in the design of hydraulic pump.
2. a kind of quantitative ball piston pump according to claim 1, it is characterised in that: main shaft (1) bottom is provided with ball-and-socket
Slot, the corresponding position in pintle (8) top are provided with ball-and-socket slot, main shaft (1) the ball-and-socket slot and pintle (8) ball
The ball-and-socket (12) for limit is provided in socket.
3. a kind of quantitative ball piston pump according to claim 1, it is characterised in that: rotor (10) upper end is provided with ring-type
Limiting slot, the charging turbine (9) setting is in the limiting slot and charging turbine (9) outer wall is bonded with limiting slot inner wall, institute
Charging turbine (9) is stated to be bolted to connection with limiting slot.
4. a kind of quantitative ball piston pump according to claim 1, it is characterised in that: the water outlet cavity of the pintle (8) goes out
There are two the mouth of a river (17) settings.
5. a kind of quantitative ball piston pump according to claim 1, it is characterised in that: the elastic device include spring (15),
Spring pedestal (7) and movable block, the spring pedestal (7) and the movable block (16) are the tubular knot that side is equipped with opening
Structure, spring pedestal (7) opening are inserted and secured in the through hole of pump case (4) side, movable block (16) opening
Side is inserted into spring pedestal (7) and can be with relative motion, and movable block (16) side is fixedly connected with rotor set (11), described
Spring (15) are provided in cavity between spring pedestal (7) and movable block (16)；Pump case (4) other side is provided with balance
The pressure chamber water inlet (5) of pressure difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922503.4U CN209458114U (en) | 2018-11-21 | 2018-11-21 | A kind of quantitative ball piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922503.4U CN209458114U (en) | 2018-11-21 | 2018-11-21 | A kind of quantitative ball piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209458114U true CN209458114U (en) | 2019-10-01 |
Family
ID=68038523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821922503.4U Expired - Fee Related CN209458114U (en) | 2018-11-21 | 2018-11-21 | A kind of quantitative ball piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209458114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356847A (en) * | 2018-11-21 | 2019-02-19 | 南昌大学 | A kind of quantitative ball piston pump |
-
2018
- 2018-11-21 CN CN201821922503.4U patent/CN209458114U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356847A (en) * | 2018-11-21 | 2019-02-19 | 南昌大学 | A kind of quantitative ball piston pump |
| CN109356847B (en) * | 2018-11-21 | 2024-05-03 | 南昌大学 | Quantitative ball plug pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20201121 |