CN100366904C - Motor-driven vane pump - Google Patents

Motor-driven vane pump Download PDF

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Publication number
CN100366904C
CN100366904C CNB2005100961974A CN200510096197A CN100366904C CN 100366904 C CN100366904 C CN 100366904C CN B2005100961974 A CNB2005100961974 A CN B2005100961974A CN 200510096197 A CN200510096197 A CN 200510096197A CN 100366904 C CN100366904 C CN 100366904C
Authority
CN
China
Prior art keywords
motor
pump cover
motor stator
rotor
vane pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2005100961974A
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Chinese (zh)
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CN1847656A (en
Inventor
冀宏
胡启辉
王峥嵘
张玮
魏列江
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Lanzhou University of Technology
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Lanzhou University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lanzhou University of Technology filed Critical Lanzhou University of Technology
Priority to CNB2005100961974A priority Critical patent/CN100366904C/en
Publication of CN1847656A publication Critical patent/CN1847656A/en
Application granted granted Critical
Publication of CN100366904C publication Critical patent/CN100366904C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The present invention relates to a motor-driven vane pump of which the aim is to use a motor winding to directly drive a rotor of the vane pump by using electric energy so that the electric energy is directly converted to hydraulic energy for output. A plurality of vanes (7) are evenly distributed in a motor rotor (1) supports in a front pump cover (9) and a back pump cover (2) by bearings (10) at both ends of the motor rotor (1). A motor winding (4) is arranged in a motor stator (5), wherein a wearing resistant insulating coating (6) is attached to the inner part of the motor stator (5); sealing rings (8) are arranged between the motor stator (5) and the front pump cover (9), and the motor stator (5) and the back pump cover (2); the front pump cover (9), the back pump cover (2) and the motor stator (5) are fastened by threaded bolts (3).

Description

A kind of motor-driven vane pump
Technical field
The present invention relates to hydraulic transmission, specifically is the vane pump in the oil hydraulic pump.
Background technique
Vane pump is a kind of structural type of oil hydraulic pump, has advantages such as discharge uniformity is good, noise is lower, has therefore obtained to use widely.At present, vane pump is as a Hydraulic power units independently, need to connect to form motor-hydraulic pump unit and carry out work by its overhanging pump shaft and independently motor or internal-combustion engine, this connection needs devices such as shaft joint, pump bracket, because independently the motor volume is bigger, add annexes such as shaft joint, whole hydraulic power unit volume weight is just very big.The motor that is connected with vane pump all contains cooling fan in addition, and therefore whole power unit noise is also bigger; Because vane pump has outrigger shaft, therefore there is leak path simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of vane pump, utilize electric energy, by the direct drive vane pump rotor of motor windings, making electric energy be converted into hydraulic pressure can export.
The present invention is a kind of motor-driven vane pump, uniform a plurality of blades 7 in the rotor 1, rotor 1 is supported in front pump cover 9 and the rear pump cover 2 by the bearing 10 at its two ends, motor windings 4 is housed in the motor stator 5, motor stator 5 is inner with wear-resistant insulation coating 6, between motor stator 5 and front pump cover 9 and the rear pump cover 2 seal ring 8 is housed, front pump cover 9, rear pump cover 2 and motor stator 5 tighten together by bolt 3.
Being shaped as of wear-resistant insulation coating 6 internal surfaces by two sections roundlet arc 6a, two sections orthodrome 6c and four sections oval shapes that transition curve 6b forms.
Uniform a plurality of heat-radiation belt 5a on the cylindrical of motor stator 5.
Rotor 1 has central through bore 11.
The present invention compares with background technique, and the useful effect that has is: this motor-driven vane pump two of drive motor and vane pumps independently element unite two into one from structure, rotor and blade pump rotor are merged.Not only make hydraulic power unit structurally greatly simplify, saved the connection transmission device, make that hydraulic power unit is compact more, volume is little, in light weight; And directly simplified power chain, electric energy is converted into hydraulic pressure through motor-driven vane pump and can exports, and has higher efficient; Motor-driven vane pump does not need outer projecting shaft, sealing reliably simultaneously, does not therefore have external leakage; The present invention has adopted the pump oil cooling but to dispel the heat with air, has removed the fan in the motor, therefore has good low-noise performance.The present invention has compact structure, efficient height, cooling is convenient, noise is low, do not have advantage such as external leakage, can be widely used in the hydraulic system as kinetic pump, also is highly suitable for the medium transport that mustn't leak outside simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention, Fig. 2 be A-A among Fig. 1 to sectional view, Fig. 3 is the partial enlarged drawing at B place among Fig. 2.
The corresponding name of reference character is called: rotor 1, rear pump cover 2, bolt 3, motor windings 4, motor stator 5, wear-resistant insulation coating 6, blade 7, seal ring 8, front pump cover 9, bearing 10.
Embodiment
As Fig. 1～shown in Figure 3, the present invention includes: uniform a plurality of blades 7 in the rotor 1, rotor 1 is supported in front pump cover 9 and the rear pump cover 2 by the bearing 10 at its two ends, motor windings 4 is housed in the motor stator 5, motor stator 5 is inner with wear-resistant insulation coating 6, between motor stator 5 and front pump cover 9 and the rear pump cover 2 seal ring 8 is housed, front pump cover 9, rear pump cover 2 and motor stator 5 tighten together by bolt 3.
Wear-resistant insulation coating 6 internal surfaces be shaped as by two sections roundlet arc 6a, two sections orthodrome 6c and four sections oval shapes that transition curve 6b forms the uniform a plurality of heat-radiation belt 5a of motor stator 5 cylindricals.
Rotor 1 has central through bore 11.
Vane pump working procedure of the present invention is as follows:
Rotor 1 is installed in the bearing hole of front pump cover 9, rear pump cover 2 by bearing 10, motor stator 5 internal surfaces are oval shape, front pump cover 9, rear pump cover 2 are little Spielpassung with rotor 1 both ends of the surface, by bolt 3 front pump cover 9, rear pump cover 2, motor stator 5 are installed together.When connecting power supply to motor windings, electromagnetic torque drive motor rotor 1 rotates, blade 7 is overhanging under centrifugal action, blade 7 heads are close on the internal surface of motor stator 5, adjacent two blades 7 are formed airtight active chamber with outer round surface, the internal surface of motor stator 5, front pump cover 9, the rear pump cover 2 of rotor 1, when rotor 1 turns to as shown in Figure 2, the oil suction from filler opening 9a, inlet port 9c and 9d of airtight active chamber, oil extraction in oil drain out 2b and 2c, high pressure oil is discharged by oil outlet (2a).Vane pump internal leakage oil enters bearing 10 by the end face matching gap, and by the central through bore 11 on the rotor 1, the oil through 9b on the front pump cover 9,2a communicates with inlet port.The fluid that flows and the outer surface of motor stator 5 and heat-radiation belt 5a are to the vane pump cooling of dispelling the heat.
The present invention unites two into one motor and vane pump.The interior ring surface of motor stator is processed as oval shape, and big or small radius value differs less, for wear-resistant and insulation, in motor stator internal surface filling high-strength insulating material and adhere to wear-resistant insulation coating.Rotor and blade pump rotor also unite two into one, just formed vane pump by motor stator, rotor, blade and front and back pump cover like this, rotor rotates under the effect of the electromagnetic force distance of motor windings, and vane pump just can be by suction oil effect output hydraulic pressure energy thereupon.

Claims (3)

1. motor-driven vane pump, it is characterized in that uniform a plurality of blades (7) in the rotor (1), rotor (1) is supported in front pump cover (9) and the rear pump cover (2) by the bearing (10) at its two ends, motor windings (4) is housed in the motor stator (5), motor stator (5) is inner with wear-resistant insulation coating (6), between motor stator (5) and front pump cover (9) and the rear pump cover (2) seal ring (8) is housed, front pump cover (9), rear pump cover (2) and motor stator (5) tighten together by bolt (3).
2. motor-driven vane pump according to claim 1 is characterized in that uniform a plurality of heat-radiation belts (5a) on the cylindrical of motor stator (5).
3. motor-driven vane pump according to claim 1 is characterized in that rotor (1) has central through bore (11).
CNB2005100961974A 2005-10-11 2005-10-11 Motor-driven vane pump Expired - Fee Related CN100366904C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100961974A CN100366904C (en) 2005-10-11 2005-10-11 Motor-driven vane pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100961974A CN100366904C (en) 2005-10-11 2005-10-11 Motor-driven vane pump

Publications (2)

Publication Number Publication Date
CN1847656A CN1847656A (en) 2006-10-18
CN100366904C true CN100366904C (en) 2008-02-06

Family

ID=37077349

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100961974A Expired - Fee Related CN100366904C (en) 2005-10-11 2005-10-11 Motor-driven vane pump

Country Status (1)

Country Link
CN (1) CN100366904C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101255868B (en) * 2007-12-10 2010-11-24 兰州理工大学 Embedded vane pump of motor
CN110829689A (en) * 2019-11-19 2020-02-21 兰州理工大学 Hydraulic motor pump shell with liquid flow-air flow-fin combined heat dissipation function

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142264A (en) * 1984-07-31 1986-02-28 Sumitomo Electric Ind Ltd Cooling fin of linear induction motor
JPH04133650A (en) * 1990-09-25 1992-05-07 Matsushita Electric Works Ltd Electric brushless motor for blower
US6078115A (en) * 1996-11-07 2000-06-20 Fanuc Ltd Air-cooled motor
US6247906B1 (en) * 1999-05-28 2001-06-19 Joseph M. Pijanowski Combined pump and motor device
CN2464965Y (en) * 2000-11-02 2001-12-12 李万浩 Both motor rotor and screw rotator pump
US20040146411A1 (en) * 2003-01-29 2004-07-29 Maceyka Thomas D. Rotary machine cooling system
CN2839649Y (en) * 2005-10-11 2006-11-22 兰州理工大学 Double-acting electric machine vane pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142264A (en) * 1984-07-31 1986-02-28 Sumitomo Electric Ind Ltd Cooling fin of linear induction motor
JPH04133650A (en) * 1990-09-25 1992-05-07 Matsushita Electric Works Ltd Electric brushless motor for blower
US6078115A (en) * 1996-11-07 2000-06-20 Fanuc Ltd Air-cooled motor
US6247906B1 (en) * 1999-05-28 2001-06-19 Joseph M. Pijanowski Combined pump and motor device
CN2464965Y (en) * 2000-11-02 2001-12-12 李万浩 Both motor rotor and screw rotator pump
US20040146411A1 (en) * 2003-01-29 2004-07-29 Maceyka Thomas D. Rotary machine cooling system
CN2839649Y (en) * 2005-10-11 2006-11-22 兰州理工大学 Double-acting electric machine vane pump

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Publication number Publication date
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