CN102628435A - Hydraulic power unit including centrifugal pump and vane pump in motor - Google Patents

Hydraulic power unit including centrifugal pump and vane pump in motor Download PDF

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Publication number
CN102628435A
CN102628435A CN2011103603083A CN201110360308A CN102628435A CN 102628435 A CN102628435 A CN 102628435A CN 2011103603083 A CN2011103603083 A CN 2011103603083A CN 201110360308 A CN201110360308 A CN 201110360308A CN 102628435 A CN102628435 A CN 102628435A
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CN
China
Prior art keywords
pump
motor
support
power unit
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.)
Pending
Application number
CN2011103603083A
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Chinese (zh)
Inventor
冀宏
王金林
孙天健
王建森
王峥嵘
汪翔翎
武俊合
赵光明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
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 CN2011103603083A priority Critical patent/CN102628435A/en
Publication of CN102628435A publication Critical patent/CN102628435A/en
Pending legal-status Critical Current

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Abstract

The invention provides a hydraulic power unit including a centrifugal pump and a vane pump in a motor. A motor rotor (3) is connected with a rotor sleeve (4) and a spindle (23) to form a rotor body, and is supported on an end cover (20) and a pump core seat (6) by a sliding bearing (15) in the pump core seat (6) and two groups of rolling bearings (22) in the end cover (20); the vane pump (8) is connected with a spindle (23) by a spline (23b), mounted in the pump core seat (6), and fixed on a stand (1) by an oil outlet press cover (13); a motor stator (2) is pressed on a boss (1d) within the stand (1); the end cover (20) and a sealing ring (19) are fixed on the stand (1); an oil outlet of the vane pump (8) is communicated with a runner (13a) of the oil outlet press cover (13) so as to output high pressure oil; power is supplied to the motor in the hydraulic power unit by a wiring terminal (28); and the wiring terminal (28) and a sealing ring (30) are fixed on the stand (1) by a bolt (26) and a press cover (29).

Description

Motor includes the hydraulic power unit of centrifugal pump and vane pump
Technical field
The present invention relates to the hydraulic electric motor pump power unit, relate in particular to the motor-driven vane pump hydraulic power unit that includes centrifugal pump.
Background technique
Hydraulic power unit is the heart of hydraulic system, is that motive hydraulic power unit is the discrete type structural form with motor at present, and its basic structure form is that motor and oil hydraulic pump are formed dynamo oil pump package through mechanisms such as coupling, connecting sleeve, supports.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.Vane pump is as a Hydraulic power units independently; Needing to connect to form motor one hydraulic pump unit through its overhanging pump shaft and independently motor or internal-combustion engine forms hydraulic power unit and carries out work; This connection needs devices such as coupling, pump bracket; Because independently the motor volume is bigger, add annexes such as upper coupling, whole hydraulic power unit volume weight is just very big.The motor that in addition is connected with vane pump generally all contains cooling fan, and therefore whole hydraulic power unit noise is also very big; Because vane pump has outrigger shaft, therefore there is the external leakage approach simultaneously.All there is the not enough problem of oil suction to some extent in general oil hydraulic pump; Therefore the inlet port at main pump need be provided with service pump in order to improve the oil absorption of main pump; Service pump generally also is an oil hydraulic pump independently; Need independent motor driving, therefore whole hydraulic power unit more complicated, volume are bigger.
Summary of the invention
The purpose of this invention is to provide the hydraulic power unit that a kind of motor includes centrifugal pump and vane pump.
The present invention is the hydraulic power unit that motor includes centrifugal pump and vane pump; Organic block 1; Also have motor stator 2, rotor 3, rotor cover 4, pump heart seat 6, vane pump 8, rotor 3 connects into rotor body with rotor cover 4, main shaft 23, and is supported on end cap 20 and the pump heart seat 6 through the sliding bearing in the pump heart seat 6 15 and two groups of rolling bearings 22 in the end cap 20; Vane pump 8 is connected with main shaft 23 through spline 23b; Vane pump 8 is contained in the pump heart seat 6, and is fixed on the support 1 through oil outlet gland 13, the 3rd seal ring 11, the 4th seal ring 12, second screw 9 and first packing ring 10, and motor stator 2 is fitted on the inner convex platform 1d on the support 1; End cap 20 and the 5th seal ring 19 are fixed on the support 1 through the 4th screw 17, second packing ring 18, and the oil outlet of vane pump 8 communicates with the runner 13a of oil outlet gland 13; Tenminal block 28 and the 6th seal ring 30 are fixed on the support 1 through the 6th screw 26, gland 29; Support 1 is provided with the first inlet port 1a, inner flow passage 1c, boss 1d and the first window 1e, and oil outlet gland 13 is provided with runner 13a, and main shaft 23 is provided with spline 23b.
The present invention compares with background technique, and the useful effect that has is:
The hydraulic power unit that described a kind of motor includes centrifugal pump and vane pump with motor-coupling-oil hydraulic pump-centrifugal service pump etc. independently element become one from structure; Not only make hydraulic power unit structurally greatly simplify; Saved the connection transmission device, made 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 hydraulic power unit and can exports, and has higher efficient; Hydraulic power unit does not have outrigger shaft simultaneously, sealing is reliable, does not therefore have external leakage; The present invention; Take away the heat that motor etc. produces through the fluid that flows in the hydraulic power unit, saved the fan in the motor, simultaneously this hydraulic power unit and integrated centrifugal service pump; The oil suction that has guaranteed main pump is sufficient; Thereby eliminated aerodynamic noise and Cavitation Noise, and make whole hydraulic power unit have excellent quiet performance, avoided external leakage simultaneously.Advantages such as that the present invention has is quiet, compact structure, efficient are high, cooling convenience, no external leakage can be widely used in the hydraulic system as power unit, while also be highly suitable for leaking outside occasion and quiet occasion.
Description of drawings
Fig. 1 is a structural representation of the present invention, and Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the plan view of main shaft 23 among Fig. 1, and Fig. 4 a is the plan view of square support 31, Fig. 4 b be the B-B of Fig. 4 a to sectional view, Fig. 5 is the right elevation of special-shaped motor stator 32.
Reference character and corresponding name are called: support 1, the first inlet port 1a, the first exhaust port 1b, inner flow passage 1c, boss 1d, the first window 1e, motor stator 2; Rotor 3, rotor cover 4, pin 5, pump heart seat 6, the first screws 7, vane pump 8, the first seal ring 8a; The second seal ring 8b, second screw, 9, the first packing rings, 10, the three seal rings, 11, the four seal rings 12, oil outlet gland 13, runner 13a; Plug screw 14, sliding bearing 15, the three screws 16, the four screws 17, the second packing rings 18, the five seal rings 19, end cap 20; Baffle ring 21, rolling bearing 22, main shaft 23, inclined hole 23a, spline 23b, back-up ring 24, the five screws 25; The 6th screw 26, connector cover 27, tenminal block 28, gland 29, the six seal rings 30, square support 31; The second exhaust port 31a, the second inlet port 31b, the second window 31c, special-shaped motor stator 32, arc surface 32a, plane 32b.
Embodiment
Like Fig. 1~shown in Figure 5; The present invention is the hydraulic power unit that motor includes centrifugal pump and vane pump; Organic block 1; Also have motor stator 2, rotor 3, rotor cover 4, pump heart seat 6, vane pump 8, rotor 3 connects into rotor body with rotor cover 4, main shaft 23, and is supported on end cap 20 and the pump heart seat 6 through the sliding bearing in the pump heart seat 6 15 and two groups of rolling bearings 22 in the end cap 20; Vane pump 8 is connected with main shaft 23 through spline 23b; Vane pump 8 is contained in the pump heart seat 6, and is fixed on the support 1 through oil outlet gland 13, the 3rd seal ring 11, the 4th seal ring 12, second screw 9 and first packing ring 10, and motor stator 2 is fitted on the inner convex platform 1d on the support 1; End cap 20 and the 5th seal ring 19 are fixed on the support 1 through the 4th screw 17, second packing ring 18, and the oil outlet of vane pump 8 communicates with the runner 13a of oil outlet gland 13; Tenminal block 28 and the 6th seal ring 30 are fixed on the support 1 through the 6th screw 26, gland 29; Support 1 is provided with the first inlet port 1a, inner flow passage 1c, boss 1d and the first window 1e, and oil outlet gland 13 is provided with runner 13a, and main shaft 23 is provided with spline 23b.
Main shaft 23 tightens together with rotor cover 4 through pin 5, the 3rd screw 16; Be provided with the inclined hole 23a that is uniformly distributed with in the main shaft 23,30~60 ° of the relative axis of inclined hole 23a, and relatively 20~45 ° of the sense of rotation hypsokinesis of rotor 3.
Support 1 is provided with terminal box, comprises connector cover 27, tenminal block 28, gland 29 and the 6th seal ring 30, and tenminal block 28 and the 6th seal ring 30 are fixed on the support 1 through the 6th screw 26, gland 29.
Support 1 is provided with the first inlet port 1a, the first exhaust port 1b, inner flow passage 1c, boss 1d and the first window 1e.
Square support 31 is provided with the second exhaust port 31a, the second inlet port 31b and the second window 31c.Abnormity motor stator 32 is provided with arc surface 32a and plane 32b.
Working procedure of the present invention is following:
The present invention gives motor stator 2 power supplies through tenminal block 28; Electromagnetic torque drive motor rotor assembly (rotor 3, rotor cover 4 etc.) rotates, and rotor cover 4 drives main shaft 23 rotations through pin 5, the 3rd screw 16, and main shaft 23 drives the rotor rotary work in the vane pump 8 through spline 23b; Fluid gets in the pump from the first inlet port 1a of support 1; And inner flow passage 1c gets into the chamber that rotor overlaps 4 left ends in the process support 1, and when the main shaft that is evenly equipped with a plurality of inclined hole 23a 23 rotations, main shaft 23 plays the effect of centrifugal pump simultaneously; Through inclined hole 23a fluid is transported to pump heart seat 6 bottoms, gets into the oil sucking window of vane pump 8.The high pressure oil of vane pump 8 outputs gets into work system through the runner 13a that the oil extraction window gets into oil outlet gland 13.The fluid that in support 1, flows can be taken away the heat of generations in service such as motor stator 2, rotor 3, and heat also dispels the heat through the outer surface of support 1 simultaneously.

Claims (6)

1. motor includes the hydraulic power unit of centrifugal pump and vane pump; Organic block (1); Also have motor stator (2), rotor (3), rotor cover (4), pump heart seat (6), vane pump (8); It is characterized in that: rotor (3) connects into rotor body with rotor cover (4), main shaft (23); And be supported on end cap (20) and the pump heart seat (6) through sliding bearing (15) in the pump heart seat (6) and the two groups of rolling bearings (22) in the end cap (20), vane pump (8) is connected with main shaft (23) through spline (23b), and vane pump (8) is contained in the pump heart seat (6); And be fixed on the support (1) through oil outlet gland (13), the 3rd seal ring (11), the 4th seal ring (12), second screw (9) and first packing ring (10); Motor stator (2) is fitted on the inner convex platform (1d) on the support (1), and end cap (20) and the 5th seal ring (19) are fixed on the support (1) through the 4th screw (17), second packing ring (18), and the oil outlet of vane pump (8) communicates with the runner (13a) of oil outlet gland (13); Tenminal block (28) and the 6th seal ring (30) are fixed on the support (1) through the 6th screw (26), gland (29); Support (1) is provided with first inlet port (1a), inner flow passage (1c), boss (1d) and first window (1e), and oil outlet gland (13) is provided with runner (13a), and main shaft (23) is provided with spline (23b).
2. motor according to claim 1 includes the hydraulic power unit of centrifugal pump and vane pump, it is characterized in that: described main shaft (23) tightens together with rotor cover (4) through pin (5), the 3rd screw (16); Be provided with the inclined hole (23a) that is uniformly distributed with in the main shaft (23), inclined hole (23a) is 30~60 ° of axis relatively, and 20~45 ° of the sense of rotation hypsokinesis of rotor (3) relatively.
3. motor according to claim 1 includes the hydraulic power unit of centrifugal pump and vane pump; It is characterized in that: described support (1) is provided with terminal box; Comprise connector cover (27), tenminal block (28), gland (29) and the 6th seal ring (30), tenminal block (28) and the 6th seal ring (30) are fixed on the support (1) through the 6th screw (26), gland (29).
4. motor according to claim 1 includes the hydraulic power unit of centrifugal pump and vane pump, it is characterized in that: described support (1) is provided with first inlet port (1a), first exhaust port (1b), inner flow passage (1c), boss (1d) and first window (1e).
5. motor according to claim 1 includes the hydraulic power unit of centrifugal pump and vane pump, it is characterized in that: square support (31) is provided with second exhaust port (31a), second inlet port (31b) and second window (31c).
6. motor according to claim 1 includes the hydraulic power unit of centrifugal pump and vane pump, it is characterized in that: special-shaped motor stator (32) is provided with arc surface (32a) and plane (32b).
CN2011103603083A 2011-11-15 2011-11-15 Hydraulic power unit including centrifugal pump and vane pump in motor Pending CN102628435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103603083A CN102628435A (en) 2011-11-15 2011-11-15 Hydraulic power unit including centrifugal pump and vane pump in motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103603083A CN102628435A (en) 2011-11-15 2011-11-15 Hydraulic power unit including centrifugal pump and vane pump in motor

Publications (1)

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CN102628435A true CN102628435A (en) 2012-08-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047134A (en) * 2013-01-24 2013-04-17 兰州理工大学 Non-oil-immersed air gap type hydraulic motor vane pump
CN104763607A (en) * 2015-02-16 2015-07-08 于长和 Combined diaphragm pump
CN110748474A (en) * 2019-11-22 2020-02-04 兰州理工大学 Hydraulic motor pump with variable rotating speed and set output flow
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500889A1 (en) * 1981-03-02 1982-09-03 Atsugi Motor Parts Co Ltd VANE PUMP
CN1928365A (en) * 2006-08-15 2007-03-14 兰州理工大学 Blade pump for hydraulic engine with pore plate centrifugal auxiliary pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500889A1 (en) * 1981-03-02 1982-09-03 Atsugi Motor Parts Co Ltd VANE PUMP
CN1928365A (en) * 2006-08-15 2007-03-14 兰州理工大学 Blade pump for hydraulic engine with pore plate centrifugal auxiliary pump

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
冀宏等: "液压电机叶片泵样机的性能试验", 《农业机械学报》 *
冀宏等: "液压电机泵中浸油电机的负载效应", 《兰州理工大学学报》 *
冀宏等: "液压电机泵内置孔板离心泵的流场解析与优化", 《机械工程学报》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047134A (en) * 2013-01-24 2013-04-17 兰州理工大学 Non-oil-immersed air gap type hydraulic motor vane pump
CN103047134B (en) * 2013-01-24 2016-08-17 兰州理工大学 A kind of air gap non-oil-immersed type blade pump for hydraulic engine
CN104763607A (en) * 2015-02-16 2015-07-08 于长和 Combined diaphragm pump
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
CN110748474A (en) * 2019-11-22 2020-02-04 兰州理工大学 Hydraulic motor pump with variable rotating speed and set output flow

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Application publication date: 20120808