CN202971176U - Dual-variable vane pump - Google Patents
Dual-variable vane pump Download PDFInfo
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- CN202971176U CN202971176U CN 201220412655 CN201220412655U CN202971176U CN 202971176 U CN202971176 U CN 202971176U CN 201220412655 CN201220412655 CN 201220412655 CN 201220412655 U CN201220412655 U CN 201220412655U CN 202971176 U CN202971176 U CN 202971176U
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Abstract
The utility model relates to the technical field of hydraulic transmission control and particularly relates to a dual-variable vane pump. The dual-variable vane pump comprises a pump body and two vane pump structures arranged inside the pump body, wherein each vane pump structure comprises a rotating shaft arranged on the pump body, as well as a rotor and a stator which are arranged inside the pump body; the rotor is located inside the stator; the rotating shaft penetrates through the rotor and is fixedly connected with the rotor; vanes are movably embedded in a radial slot; the outer end of each vane props against the inner wall of the stator; the pump body is provided with a front thrust plate and a back thrust plate; the rotor and the stator are located between the front thrust plate and the back thrust plate; the rotating shafts of the two vane pump structures are formed integrally; and the rotor is connected with the rotating shaft through a key. According to the dual-variable vane pump, the two vane pumps are combined into a whole and synchronously driven by the same rotating shaft, the hydraulic driving function of two loops can be realized by utilizing one dual-variable vane pump and a driving motor, and the dual variable vane pump is simple and compact in structure, low in cost, convenient to install and strong in practicability.
Description
Technical field
The utility model relates to the hydraulic pressure drive control system technical field, refers in particular to a kind of double variable quantity blade pump.
Background technique
Hydraulic-pressure pump is comprised of the pump housing, rectangular fuel tank, pressure handle, ultra-pressure wired rubber tube four major parts, the dynamical element of hydraulic system, its effect is the mechanical energy of prime mover to be converted to the pressure energy of liquid, refers to the oil pump in hydraulic system, and it provides power to whole hydraulic system.The structural type of oil hydraulic pump generally has gear pump, vane pump and plunger pump.
Single acting vane pump is comprised of stator, rotor, blade, oil distribution casing, transmission shaft, the pump housing, end cap etc., between stator and rotor, eccentric distance e is arranged, blade is contained in rotor, and can slide in groove, when rotor turns round, due to the effect of centrifugal force, make the outer end of blade abut against stator inner wall.
Variable vane pump refers to the oil hydraulic pump that discharge capacity can be regulated, it is by changing eccentric distance e and the eccentric direction of single acting vane pump rotor and stator, change oil transportation amount and oil transportation direction, become variable vane pump, this adjusting can be by manually realizing, also can be by automatically realizing, wherein limited pressure variable vane pump is a kind of dynamical element that utilizes load variations automatically to realize Flow-rate adjustment, its effect is after pressure is elevated to the restriction pressure of preset, flow reduces, and therefore is used widely in practice.
Existing vane pump is generally monomer structure, and adopting independent motor to reverse driving to the vane pump of monomer structure, hydraulic equipment has a plurality of oil hydraulic circuits usually, just needs to be equipped with a plurality of vane pumps and a plurality of drive motor, thereby cause the complex structure of hydraulic equipment, manufacture cost is higher.
Summary of the invention
The technical problems to be solved in the utility model is to provide and a kind of two variable vane pumps is combined, and can carry out respectively the duplex variable displacement pump of flow control to two oil hydraulic circuits, has advantages of simple and compact for structure, with low cost, the convenient installation.
in order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of double variable quantity blade pump, comprise the pump housing and be installed in the interior vane pump structure of the pump housing, the quantity of described vane pump structure is two, the vane pump structure comprises the rotating shaft that is installed in the pump housing and is installed in the pump housing interior rotor and stator, this rotor is positioned at stator, rotating shaft is passed rotor and is fixedly connected with rotor, the circumference of described rotor offers at least nine radial grooves, in radial groove, activity is embedded with blade, the inwall butt of the outer end of this blade and stator, the pump housing is equiped with front thrust plate and rear thrust plate, rotor and stator are all between front thrust plate and rear thrust plate, the rotating shaft of two vane pump structures is one-body molded, be connected for key between rotor and rotating shaft.
Wherein, the upper and lower of the described pump housing is equiped with respectively large piston and small piston, and the upper end of large piston is provided with spring, and the upper end of this spring is connected with the pump housing, the lower end of this spring and described large piston butt; The bottom of the described pump housing is equiped with the adjustment bolt, and this adjusts bolt upper end and described small piston butt, greatly piston and small piston respectively with the upper and lower butt of stator.
Wherein, the described pump housing offers the draining hole, and the top of the pump housing is equiped with pressure regulator valve, and the entrance of this pressure regulator valve extends to the outside of rear thrust plate, and the outlet of this pressure regulator valve is communicated with the draining hole.
Wherein, the bottom butt of the upper end of described spring and described pressure regulator valve.
Wherein, described pressure regulator valve comprises regulator bolts, and this regulator bolts is equiped with the adjustment nut.
Wherein, the sidepiece of the described pump housing is bolted with the noise adjusting bolt, the inner of this noise adjusting bolt and described stator butt.
Wherein, the described pump housing is equiped with dust cover, and described noise adjusting bolt penetrates this dust cover.
Wherein, the quantity of described radial groove and blade is odd number.
Wherein, described at least nine radial groove annulars are distributed in the circumference of rotor.
the beneficial effects of the utility model are: the utility model provides a kind of double variable quantity blade pump, comprise the pump housing and be installed in the interior vane pump structure of the pump housing, the quantity of described vane pump structure is two, the vane pump structure comprises the rotating shaft that is installed in the pump housing and is installed in the pump housing interior rotor and stator, this rotor is positioned at stator, rotating shaft is passed rotor and is fixedly connected with rotor, the circumference of described rotor offers at least nine radial grooves, in radial groove, activity is embedded with blade, the inwall butt of the outer end of this blade and stator, the pump housing is equiped with front thrust plate and rear thrust plate, rotor and stator are all between front thrust plate and rear thrust plate, the rotating shaft of two vane pump structures is one-body molded, be connected for key between rotor and rotating shaft.The utility model is combined into one two vane pumps, and adopt same rotating shaft to carry out synchronous drive, adopt a described double variable quantity blade pump and a drive motor can realize the hydraulic driving function in two loops, simple and compact for structure, with low cost, easy for installation, practical.
Description of drawings
Fig. 1 is the utility model master TV structure schematic diagram.
Fig. 2 is the left TV structure schematic diagram of the utility model.
Fig. 3 is the cross-sectional view of A-A in Fig. 1.
Fig. 4 is the cross-sectional view of B-B in Fig. 2.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with embodiment and accompanying drawing, the utility model is further described, the content that mode of execution is mentioned not is to restriction of the present utility model.
as shown in Figures 1 to 4, a kind of double variable quantity blade pump, comprise the pump housing and be installed in the interior vane pump structure of the pump housing, the quantity of described vane pump structure is two, the vane pump structure comprises the rotating shaft 2 that is installed in the pump housing 1 and is installed in the pump housing 1 interior rotor 3 and stator 4, this rotor 3 is positioned at stator 4, rotating shaft 2 is passed rotor 3 and is fixedly connected with rotor 3, the circumference of described rotor 3 offers at least nine radial grooves, in radial groove, activity is embedded with blade 5, the inwall butt of the outer end of this blade 5 and stator 4, the pump housing 1 is equiped with front thrust plate 6 and rear thrust plate 7, rotor 3 and stator 4 are all between front thrust plate 6 and rear thrust plate 7, the rotating shaft 2 of two vane pump structures is one-body molded, be connected for key between rotor 3 and rotating shaft 2.The quantity of radial groove and blade 5 is at least nine, can make the flow of this double variable quantity blade pump more even, reduces its noise.The quantity of the radial groove of the present embodiment and blade 5 is 13.
see Fig. 3, in the working procedure of double variable quantity blade pump, rotating shaft 2 rotor drivens 3 synchronously rotate, be positioned at the blade 5 of radial groove under the effect of centrifugal force, the outer end of blade 5 all the time with the inwall butt of described stator 4, two adjacent blades 5, the outer wall of rotor 3, the inwall of stator 4 and front thrust plate 6 and rear thrust plate 7 forms oil sealing district 18, owing between rotor 3 and stator 4, certain throw of eccentric being arranged, so the oil sealing district 18 that is positioned at rotor 3 belows is larger than 18 spaces, oil sealing district that are positioned at rotor 3 tops, and the oil sealing district 18 that is arranged in rotor 3 tops is in the process that moves to below rotor 3, it is large that the space in oil sealing district 18 becomes gradually, the interior generation vacuum in oil sealing district 18 is so that be drawn into the hydraulic oil in front thrust plate 6 outsides in oil sealing district 18, subsequently, rotating shaft 2 rotor drivens 3 are rotated further, the oil sealing district 18 that is arranged in rotor 3 belows is in the process that moves to above rotor 3, the space in oil sealing district 18 diminishes gradually, so that the hydraulic oil in oil sealing district 18 are expressed to the outside of rear thrust plate 7, and by the effect between the pump housing 1 and rear thrust plate 7, with the oil outlet output of hydraulic oil from the pump housing 1, thereby realize that it converts mechanical energy to the function of hydraulic energy.
The utility model is combined into one two vane pumps, and adopt same rotating shaft to carry out synchronous drive, adopt a described double variable quantity blade pump and a drive motor can realize the hydraulic driving function in two loops, simple and compact for structure, with low cost, easy for installation, practical.
The upper and lower of the described pump housing 1 of the present embodiment is equiped with respectively large piston 8 and small piston 9, and the upper end of large piston 8 is provided with spring 10, and the upper end of this spring 10 is connected with the pump housing 1, the lower end of this spring 10 and described large piston 8 butts; The bottom of the described pump housing 1 is equiped with adjusts bolt 11, and this adjusts bolt 11 upper ends and described small piston 9 butts, greatly piston 8 and small piston 9 respectively with the upper and lower butt of stator 4.
see Fig. 3 and Fig. 4, due to described stator 4 respectively with spring 10 with adjust bolt 11 butts, by the described adjustment bolt 11 of turn, can regulate the height up and down of adjusting bolt 11, thereby regulate the height up and down of described stator 4, namely can regulating rotary throw of eccentric size between son 3 and stator 4, make the oil sealing district 18 that is positioned at rotor 3 belows adjusted with the gap of the space size in the oil sealing district 18 that is positioned at rotor 3 tops, under the prerequisite of same rotational speed, realize the flow adjustment function of described double variable quantity blade pump, not only simple and compact for structure, with low cost, take up room less, two vane pump structures can be supplied two different loops simultaneously, and can realize to two loops the control of pressure and flow, practicability is stronger.
The described pump housing 1 of the present embodiment offers draining hole 12, and the top of the pump housing 1 is equiped with pressure regulator valve 13, and the entrance of this pressure regulator valve 13 extends to the outside of rear thrust plate 7, and the outlet of this pressure regulator valve 13 is communicated with draining hole 12.Concrete, the bottom butt of the upper end of described spring 10 and described pressure regulator valve 13 need not additionally spring 10 to be carried out special fixation, and structure is compacter.When the load of some monomer vane pumps of double variable quantity blade pump drives hydraulic pressure and surpasses specified hydraulic pressure, the effect of this pressure regulator valve 13 is the output hydraulic pressure of this monomer vane pump is reduced to the setting hydraulic pressure strength, avoids this vane pump or other hydraulic actuator are being become to damage.
the described pressure regulator valve 13 of the present embodiment comprises regulator bolts 14, this regulator bolts 14 is equiped with adjusts nut 15, first unclamp and adjust nut 15, turn regulator bolts 14 can be regulated pressure regulator valve 13 again, thereby indirectly regulate the hydraulic pressure output intensity of described double variable quantity blade pump, make it satisfy the needed hydraulic pressure strength of other hydraulic actuator, applicability is wider, after screwing again adjustment nut 15, prevent that described double variable quantity blade pump is in the course of the work because the vibration of equipment causes regulator bolts 14 turn voluntarily, greatly improved the working stability of this vane pump, practical.
The sidepiece of the described pump housing 1 of the present embodiment is bolted with noise adjusting bolt 16, the inner of this noise adjusting bolt 16 and described stator 4 butts.Due to rotor 3 in stator 4 inner rotation, described large piston 8 and small piston 9 tightly can fix the upper-lower position of stator 4, noise adjusting bolt 16 is used for the position, left and right of stator 4 is fixed, and prevents that stator 4 from producing noise in the pump housing 1 internal vibration; In addition, after the throw of eccentric size between rotor 3 and stator 4 is adjusted as required, suitably regulate the near lower degree of noise that noise adjusting bolt 16 can produce stator 4 again, easy to adjust, noise pollution is less.
See Fig. 3, the described pump housing 1 of the present embodiment is equiped with dust cover 17, described noise adjusting bolt 16 penetrates this dust cover 17, to prevent that dust or impurity in external environment from entering into the wearing and tearing that cause its internals in the pump housing 1 by noise adjusting bolt 16, extend the working life of described double variable quantity blade pump.
The described radial groove of the present embodiment and the quantity of blade 5 are odd number, and is concrete, and described at least nine radial groove annulars are distributed in the circumference of rotor 3.Be the function of corner due to the blade radius vector, the instantaneous theoretical delivery of vane pump is pulsed.The number of blade is taken as odd number, to reduce the pulsation of hydraulic fluid flow rate, has greatly improved described double variable quantity blade pump hydraulic pressure output stability, and practicability is stronger.
Above-described embodiment is the better implementation of the utility model, in addition, all right alternate manner realization of the utility model, any apparent replacement is all within protection domain of the present utility model under the prerequisite that does not break away from the present utility model design.
Claims (9)
1. double variable quantity blade pump, comprise the pump housing and be installed in the interior vane pump structure of the pump housing, it is characterized in that: the quantity of described vane pump structure is two, the vane pump structure comprises the rotating shaft (2) that is installed in the pump housing (1) and is installed in the pump housing (1) interior rotor (3) and stator (4), this rotor (3) is positioned at stator (4), rotating shaft (2) is passed rotor (3) and is fixedly connected with rotor (3), the circumference of described rotor (3) offers at least nine radial grooves, in radial groove, activity is embedded with blade (5), the inwall butt of the outer end of this blade (5) and stator (4), the pump housing (1) is equiped with front thrust plate (6) and rear thrust plate (7), rotor (3) and stator (4) all are positioned between front thrust plate (6) and rear thrust plate (7), the rotating shaft of two vane pump structures (2) is one-body molded, be connected for key between rotor (3) and rotating shaft (2).
2. double variable quantity blade pump according to claim 1, it is characterized in that: the upper and lower of the described pump housing (1) is equiped with respectively large piston (8) and small piston (9), the upper end of large piston (8) is provided with spring (10), the upper end of this spring (10) is connected with the pump housing (1), the lower end of this spring (10) and described large piston (8) butt; The bottom of the described pump housing (1) is equiped with adjusts bolt (11), and this adjusts bolt (11) upper end and described small piston (9) butt, greatly piston (8) and small piston (9) respectively with the upper and lower butt of stator (4).
3. double variable quantity blade pump according to claim 2, it is characterized in that: the described pump housing (1) offers draining hole (12), the top of the pump housing (1) is equiped with pressure regulator valve (13), the entrance of this pressure regulator valve (13) extends to the outside of rear thrust plate (7), and the outlet of this pressure regulator valve (13) is communicated with draining hole (12).
4. double variable quantity blade pump according to claim 3, is characterized in that: the bottom butt of the upper end of described spring (10) and described pressure regulator valve (13).
5. double variable quantity blade pump according to claim 3, it is characterized in that: described pressure regulator valve (13) comprises regulator bolts (14), this regulator bolts (14) is equiped with adjusts nut (15).
6. double variable quantity blade pump according to claim 1, it is characterized in that: the sidepiece of the described pump housing (1) is bolted with noise adjusting bolt (16), the inner of this noise adjusting bolt (16) and described stator (4) butt.
7. double variable quantity blade pump according to claim 6, it is characterized in that: the described pump housing (1) is equiped with dust cover (17), and described noise adjusting bolt (16) penetrates this dust cover (17).
8. double variable quantity blade pump according to claim 1, it is characterized in that: the quantity of described radial groove and blade (5) is odd number.
9. the described double variable quantity blade pump of any one according to claim 1 to 8, it is characterized in that: described at least nine radial groove annulars are distributed in the circumference of rotor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412655 CN202971176U (en) | 2012-08-20 | 2012-08-20 | Dual-variable vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412655 CN202971176U (en) | 2012-08-20 | 2012-08-20 | Dual-variable vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971176U true CN202971176U (en) | 2013-06-05 |
Family
ID=48512260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412655 Expired - Fee Related CN202971176U (en) | 2012-08-20 | 2012-08-20 | Dual-variable vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971176U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678434A (en) * | 2017-02-16 | 2017-05-17 | 河南科技大学 | Temperature adjusting dispenser water valve |
| CN107327689A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of duplex lubricating oil pump of variable displacement |
| CN110107498A (en) * | 2019-05-25 | 2019-08-09 | 浙江永灵液压机械有限公司 | A kind of variable vane pump |
| CN116816663A (en) * | 2023-06-16 | 2023-09-29 | 浙江大学 | Hydraulic system with energy supplied by double-input vane pump |
-
2012
- 2012-08-20 CN CN 201220412655 patent/CN202971176U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678434A (en) * | 2017-02-16 | 2017-05-17 | 河南科技大学 | Temperature adjusting dispenser water valve |
| CN107327689A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of duplex lubricating oil pump of variable displacement |
| CN110107498A (en) * | 2019-05-25 | 2019-08-09 | 浙江永灵液压机械有限公司 | A kind of variable vane pump |
| CN110107498B (en) * | 2019-05-25 | 2020-09-25 | 浙江永灵液压机械有限公司 | Variable vane pump |
| CN116816663A (en) * | 2023-06-16 | 2023-09-29 | 浙江大学 | Hydraulic system with energy supplied by double-input vane pump |
| CN116816663B (en) * | 2023-06-16 | 2024-04-19 | 浙江大学 | Hydraulic system with energy supplied by double-input vane pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |