CN202833135U - Improved type motor vane pump set - Google Patents
Improved type motor vane pump set Download PDFInfo
- Publication number
- CN202833135U CN202833135U CN 201220373480 CN201220373480U CN202833135U CN 202833135 U CN202833135 U CN 202833135U CN 201220373480 CN201220373480 CN 201220373480 CN 201220373480 U CN201220373480 U CN 201220373480U CN 202833135 U CN202833135 U CN 202833135U
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- vane pump
- pump housing
- motor
- rotor
- electric motor
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Abstract
The utility model relates to the technical field of hydraulic transmission control, in particular to an improved type motor vane pump set. The improve type motor vane pump set comprises a vane pump and a motor which is used for driving the vane pump to work, wherein the vane pump comprises a pump body and a rotating shaft which is installed on the pump body. An outer shell of the motor is fixedly connected with the pump body, a connecting hole is formed at the end portion of the rotating shaft, a main shaft of the motor is connected with the connecting hole through a spline, and the spline is an involute spline. Due to the fact that the motor and the vane pump are fixedly assembled together instead of being respectively assembled and the installing position of the motor and the vane pump does not need to be adjusted in the process of assembly of hydraulic equipment, installing difficulty of the hydraulic equipment is reduced, and assembly efficiency of the vane pump is improved. The arrangement of the involute spline is beneficial for conducting a transmission connection of the main shaft of the motor and the connecting hole of the rotating shaft, torsion bearing capacity of the rotating shaft is improved, the connecting hole and the rotating shaft are easy to be automatically centered in the process of assembly of the improved type motor vane pump set, and installation precision is higher.
Description
Technical field
The utility model relates to the hydraulic pressure drive control system technical field, refers in particular to a kind of improved electric motor vane pump group.
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 pressure energy that the mechanical energy of prime mover is converted to liquid, refers to the oil pump in the 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 the rotor eccentric distance e is arranged, blade is contained in the rotor, and can in groove, slide, when rotor turns round, because the effect of centrifugal force makes 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.
In the practical set and application of hydraulic equipment, usually need to be equipped with power plant for vane pump, for example the moment of torsion output link in the element device is connected with the rotating shaft transmission of vane pump, perhaps be equipped with separately other power plant such as motor or petrol engine for vane pump, so not only increased vane pump work difficulty and workload when mounted, if proofread accurate not, assembly error is larger between vane pump and the power plant, also easily strengthen the wearing and tearing of vane pump or power plant, have a strong impact on the working life of hydraulic equipment.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of improved electric motor vane pump group that motor and vane pump are fitted together, this motor-driven vane pump group is avoided motor and vane pump are installed respectively, need not adjustment is carried out in both mounting points, reduced the installation difficulty of hydraulic equipment, packaging efficiency is higher.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of improved electric motor vane pump group, comprise vane pump and be used for the motor that the drive vane pump turns round, vane pump comprises the pump housing and is installed in the rotating shaft of the pump housing, the shell of described motor is fixedly connected with the pump housing, the end of described rotating shaft offers attachment hole, and the main shaft of described motor and attachment hole are by spline joint, and this spline is involute splines.
Wherein, the two end part of described rotating shaft all are set with copper sheathing, and this copper sheathing is fixedly connected with the described pump housing.
Wherein, the shell of described motor and the joint of the pump housing are provided with outside framework oil seal, the both sides of this outside framework oil seal respectively with shell and the pump housing butt of motor, the main shaft of described motor passes this outside framework oil seal.
Wherein, described vane pump also comprises rotor and the stator that is installed in the pump housing, 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, activity is embedded with blade in the radial groove, 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, one end of rotor and an end of stator all with the front thrust plate butt, the other end of rotor and the other end of stator all with the rear thrust plate butt, the top of the described pump housing is equiped with the bottom and is equiped with respectively large piston and small piston, 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, large 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 improved electric motor vane pump group, motor and vane pump be fixedly assembled avoid motor and vane pump are installed respectively, in the assembling process of hydraulic equipment, need not both mounting points are carried out adjustment again, reduce the installation difficulty of hydraulic equipment, improved the packaging efficiency of vane pump; Being provided with to be beneficial to of involute splines is in transmission connection the main shaft of motor and the attachment hole of rotating shaft, improved the moment of torsion bearing capacity of rotating shaft, in the assembly process of described improved electric motor vane pump group, the easier self-alignment of attachment hole and rotating shaft, installation precision is higher.In addition, the chipless technological method for processing such as involute splines is convenient to adopt cold stranding, is coldly beaten, cold-extruded, manufacturing efficiency is high, and precision is high, and economical with materials, and is 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 among Fig. 1.
Fig. 4 is the cross-sectional view of B-B among Fig. 2.
Fig. 5 is the cross-sectional view of vane pump of the present utility model.
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.
Extremely shown in Figure 5 such as Fig. 1, a kind of improved electric motor vane pump group, comprise vane pump and be used for the motor 21 that the drive vane pump turns round, vane pump comprises the pump housing 1 and is installed in the rotating shaft 2 of the pump housing 1, the shell of described motor 21 is fixedly connected with the pump housing 1, the end of described rotating shaft 2 offers attachment hole 23, and the main shaft 22 of described motor 21 passes through spline joint with attachment hole 23, and this spline is involute splines 24.
Improved electric motor vane pump group described in the utility model, motor 21 and vane pump be fixedly assembled avoid motor 21 and vane pump are installed respectively, in the assembling process of hydraulic equipment, need not both mounting points are carried out adjustment again, reduce the installation difficulty of hydraulic equipment, improved the packaging efficiency of vane pump; Being provided with of involute splines 24 is beneficial to the main shaft 22 of motor 21 attachment hole 23 with rotating shaft 2 is in transmission connection, improved the moment of torsion bearing capacity of rotating shaft 2, in the assembly process of described improved electric motor vane pump group, attachment hole 23 and rotating shaft 2 easier self-alignments, installation precision is higher.In addition, the chipless technological method for processing such as involute splines 24 is convenient to adopt cold stranding, is coldly beaten, cold-extruded, manufacturing efficiency is high, and precision is high, and economical with materials, and is practical.
The two end part of the described rotating shaft 2 of the present embodiment all are set with copper sheathing 25, this copper sheathing 25 is fixedly connected with the described pump housing 1, this copper sheathing 25 adopts has the cast copper alloy that hardness is high, wear resistance is fabulous, good corrosion resistance is arranged (such as ZCuSn10Pb1, ZCuPb15Sn8 or ZCuSn10Pb10) manufacturing, to replace existing bearing to connect, even at the shortage oiling agent with under with the aqueous lubricant condition, its sliding and self-lubricating property are good, easily cutting, castability is poor, dilute sulfuric acid also had good corrosion resistance, longer service life.
The shell of the described motor 21 of the present embodiment and the joint of the pump housing 1 are provided with outside framework oil seal 26, the both sides of this outside framework oil seal 26 respectively with shell and the pump housing 1 butt of motor 21, the main shaft 22 of described motor 21 passes this outside framework oil seal 26, to prevent that hydraulic oil or extraneous dust in the vane pump from entering into motor 21 inside, can prevent effectively simultaneously that the hydraulic oil in the vane pump from overflowing, and avoids surrounding environment is polluted.
The described vane pump of the present embodiment also comprises rotor 3 and the stator 4 that is installed in the pump housing 1, 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, activity is embedded with blade 5 in the radial groove, 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, one end of rotor 3 and an end of stator 4 all with front thrust plate 6 butts, the other end of the other end of rotor 3 and stator 4 all with rear thrust plate 7 butts, the top of the described pump housing 1 is equiped with the bottom and 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 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.
The quantity of radial groove and blade 5 is at least nine, can make the flow of this improved electric motor vane pump group 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 improved electric motor vane pump group, under the driving effect of motor 21, rotating shaft 2 rotor drivens 3 rotate synchronously, 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 form oil sealing district 18, owing between rotor 3 and the stator 4 certain throw of eccentric being arranged, so it is larger than 18 spaces, oil sealing district that are positioned at rotor 3 tops to be positioned at the oil sealing district 18 of rotor 3 belows, and the oil sealing district 18 that is arranged in rotor 3 tops is in the process that moves to below the rotor 3, the space in oil sealing district 18 becomes greatly gradually, and oil sealing district 18 interior generation vacuum are so that be drawn into the hydraulic oil in front thrust plate 6 outsides in the 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 the rotor 3, the space in oil sealing district 18 diminishes gradually, so that the hydraulic oil in the oil sealing district 18 is expressed to the outside of rear thrust plate 7, and by the effect between the pump housing 1 and the rear thrust plate 7, with the oil outlet output of hydraulic oil from the pump housing 1, thereby realize that vane pump converts mechanical energy to the function of hydraulic energy.
See Fig. 3 to Fig. 5, because described stator 4 is respectively with spring 10 with adjust bolt 11 butts, by the described adjustment bolt 11 of turn, can regulate the up and down height of adjusting bolt 11, thereby regulate the up and down height of described stator 4, namely can regulating rotary throw of eccentric size between son 3 and the 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 improved electric motor vane pump group, not only simple and compact for structure, with low cost, take up room less, it is also very convenient to install.
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 improved electric motor vane pump group drives hydraulic pressure above specified hydraulic pressure, the effect of this pressure regulator valve 13 is the output hydraulic pressure of this improved electric motor vane pump group 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, unclamp first 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 improved electric motor vane pump group, make it satisfy the needed hydraulic pressure strength of other hydraulic actuator, applicability is wider, after screwing again adjustment nut 15, prevent that described improved electric motor vane pump group is in the course of the work owing to the vibration of equipment causes voluntarily turn of regulator bolts 14, 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.Because rotor 3 is 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, the left and right sides 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 the 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 the external environment from entering into the wearing and tearing that cause its internals in the pump housing 1 by noise adjusting bolt 16, prolong the working life of described improved electric motor vane pump group.
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.Because blade 5 radius vectors are functions of corner, the instantaneous theoretical delivery of vane pump is pulsed.Blade 5 numbers are taken as odd number, to reduce the pulsation of hydraulic fluid flow rate, have greatly improved described improved electric motor vane pump group 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 (10)
1. improved electric motor vane pump group, comprise vane pump and be used for the motor (21) that the drive vane pump turns round, vane pump comprises the pump housing (1) and is installed in the rotating shaft (2) of the pump housing (1), the shell of described motor (21) is fixedly connected with the pump housing (1), it is characterized in that: the end of described rotating shaft (2) offers attachment hole (23), the main shaft (22) of described motor (21) passes through spline joint with attachment hole (23), and this spline is involute splines (24).
2. improved electric motor vane pump group according to claim 1, it is characterized in that: the two end part of described rotating shaft (2) all are set with copper sheathing (25), and this copper sheathing (25) is fixedly connected with the described pump housing (1).
3. improved electric motor vane pump group according to claim 1, it is characterized in that: the joint of the shell of described motor (21) and the pump housing (1) is provided with outside framework oil seal (26), the both sides of this outside framework oil seal (26) respectively with shell and the pump housing 1 butt of motor (21), the main shaft (22) of described motor (21) passes this outside framework oil seal (26).
4. improved electric motor vane pump group according to claim 1, it is characterized in that: described vane pump also comprises rotor (3) and the stator (4) that is installed in the pump housing (1), 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, activity is embedded with blade (5) in the radial groove, 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), one end of one end of rotor (3) and stator (4) all with front thrust plate (6) butt, the other end of the other end of rotor (3) and stator (4) all with rear thrust plate (7) butt, the top of the described pump housing (1) is equiped with the bottom and 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, large piston (8) and small piston (9) respectively with the upper and lower butt of stator (4).
5. improved electric motor vane pump group according to claim 4, 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).
6. improved electric motor vane pump group according to claim 5 is characterized in that: the bottom butt of the upper end of described spring (10) and described pressure regulator valve (13).
7. improved electric motor vane pump group according to claim 5, it is characterized in that: described pressure regulator valve (13) comprises regulator bolts (14), this regulator bolts (14) is equiped with adjusts nut (15).
8. improved electric motor vane pump group according to claim 7, 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.
9. improved electric motor vane pump group according to claim 8, 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).
10. improved electric motor vane pump group according to claim 4, it is characterized in that: the quantity of described radial groove and blade (5) is odd number, and 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 201220373480 CN202833135U (en) | 2012-07-31 | 2012-07-31 | Improved type motor vane pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373480 CN202833135U (en) | 2012-07-31 | 2012-07-31 | Improved type motor vane pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833135U true CN202833135U (en) | 2013-03-27 |
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ID=47944856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220373480 Expired - Fee Related CN202833135U (en) | 2012-07-31 | 2012-07-31 | Improved type motor vane pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833135U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291613A (en) * | 2013-06-14 | 2013-09-11 | 襄阳绿控电气科技有限公司 | Electric power steering pump for electric automobile |
| RU168310U1 (en) * | 2016-05-26 | 2017-01-30 | Общество с ограниченной ответственностью "Завод топливного оборудования" | PUMP INSTALLATION |
| CN108131291A (en) * | 2017-12-20 | 2018-06-08 | 南京蒙福液压机械有限公司 | A kind of vane pump denoising device |
| CN108533486A (en) * | 2018-06-22 | 2018-09-14 | 马明 | A kind of positive displacement high-pressure hydraulic pump with slide block structure |
-
2012
- 2012-07-31 CN CN 201220373480 patent/CN202833135U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291613A (en) * | 2013-06-14 | 2013-09-11 | 襄阳绿控电气科技有限公司 | Electric power steering pump for electric automobile |
| CN103291613B (en) * | 2013-06-14 | 2014-05-28 | 襄阳绿控电气科技有限公司 | Electric power steering pump for electric automobile |
| RU168310U1 (en) * | 2016-05-26 | 2017-01-30 | Общество с ограниченной ответственностью "Завод топливного оборудования" | PUMP INSTALLATION |
| CN108131291A (en) * | 2017-12-20 | 2018-06-08 | 南京蒙福液压机械有限公司 | A kind of vane pump denoising device |
| CN108533486A (en) * | 2018-06-22 | 2018-09-14 | 马明 | A kind of positive displacement high-pressure hydraulic pump with slide block structure |
| CN108533486B (en) * | 2018-06-22 | 2024-01-26 | 马明 | Volumetric high-pressure water pump with sliding block structure |
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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: 20130327 Termination date: 20140731 |
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| EXPY | Termination of patent right or utility model |