CN103047134A

CN103047134A - Non-oil-immersed air gap type hydraulic motor vane pump

Info

Publication number: CN103047134A
Application number: CN201310025743XA
Authority: CN
Inventors: 冀宏; 王金林; 张继铭; 任威; 孙东宁; 王文璐
Original assignee: Lanzhou University of Technology
Current assignee: Lanzhou University of Technology
Priority date: 2013-01-24
Filing date: 2013-01-24
Publication date: 2013-04-17
Anticipated expiration: 2033-01-24
Also published as: CN103047134B

Abstract

The invention relates to a non-oil-immersed air gap type hydraulic motor vane pump. A motor rotor (3) and a main shaft (4) are compressed together, and are supported on a shell (1) and an inner end cover (23) by a first bearing (5) and a second bearing (25), a pump core (12) of the vane pump is connected with the main shaft (4) by a spline (4c), the pump core (12) of the vane pump is arranged in a pump core holder (13), a motor stator (2) is pressed in an inner hole (1e) of a shell (1), the shell (1) is provided with an oil inlet (1a), an annular flow channel (1b) and a cooling flow channel (1d), and the main shaft (4) is provided with a central hole (4a) of the main shaft and a pore plate centrifugal pump (4c). The heat generated by a motor and the like is taken away by oil flowing in a motor pump, the fan in the motor is saved, and meanwhile, the hydraulic motor vane pump can absorb oil and enhance the pressure by the central hole of the main shaft and the pore plate centrifugal pump. The aerodynamic noise and the cavitation noise are eliminated, so that the entire hydraulic motor vane pump has a favorable silencing performance.

Description

The non-oil-immersed type blade pump for hydraulic engine of a kind of air gap

Technical field

The present invention relates to hydraulic electric motor pump, relate in particular to the non-oil-immersed type of motor air gap, oil cooled hydraulic electric motor pump.

Background technique

Conventional hydraulic power unit take motor as prime mover mostly is discrete type structural type at present, by the dynamo oil pump package that standard motor and oil hydraulic pump form by mechanisms such as coupling, connecting sleeves, there is complex structure in it, volume weight is large, noise is high, there are the shortcomings such as external leakage in the shaft extension place.Hydraulic electric motor pump is with motor, the integrated novel hydraulic power unit of oil hydraulic pump, the component such as coupling, connecting sleeve have been saved, removed motor ventilating fan, adopted oil stream that motor is dispelled the heat, so compact structure, noise significantly reduce, stopped external leakage.The oil stream type of cooling generally is that motor all is immersed in the fluid, and the motor gas-gap of high speed rotating and rotor can produce viscous friction to fluid on every side thus, and extra heating increases, and has reduced the total efficiency of hydraulic electric motor pump; All there are the problem of oil suction deficiency to some extent in general oil hydraulic pump or hydraulic electric motor pump, the oil absorption that the additional mechanical supercharging pump can improve main pump is set, but suction booster generally also is service pump independently, so that whole hydraulic power unit more complicated, volume are larger.

Summary of the invention

The purpose of this invention is to provide a kind of The non-oil-immersed type blade pump for hydraulic engine of air gap

The present invention is the non-oil-immersed type blade pump for hydraulic engine of a kind of air gap, housing 1 is arranged, also has motor stator 2, rotor 3, main shaft 4, oil outlet gland 11, vane pump pump core 12, pump core print seat 13, outer seal 22, inner end cap 23, suspension ring 27, terminal box 29, rotor 3 press-fits with main shaft 4 and is integral, and be supported on housing 1 and the inner end cap 23 by clutch shaft bearing 5 and the second bearing 25, vane pump pump core 12 is connected with main shaft 4 by spline 4c, vane pump pump core 12 is contained in the pump core print seat 13, and by oil outlet gland 11, the second seal ring 10, the 5th seal ring 14, the first screw 8 and the first packing ring 9 are fixed on the housing 1, motor stator 2 is fitted on the endoporus 1e of housing 1, inner end cap 23 and the 9th seal ring 21 are fixed on the housing 1 by the 3rd screw 20, and outer seal 22 and the 8th seal ring 19 are fixed on the housing 1 by the second screw 18; Housing 1 is provided with filler opening 1a, ring runner 1b, coolant flow channel 1d, and main shaft 4 is provided with spindle hole 4a, orifice plate centrifugal pump 4c, and main shaft 4 two ends are provided with the 6th seal ring 15 and the tenth seal ring 24.

The present invention compares with background technique, and the useful effect that has is:

The present invention with motor-coupling-oil hydraulic pump-centrifugal service pump etc. independently element become one from structure, not only so that structurally greatly simplification of hydraulic power unit, saved the connection for transmission device so that hydraulic power unit is compacter, volume is little, lightweight; And directly simplified power chain, electric energy is converted into hydraulic energy output through hydraulic power unit, avoided simultaneously because being full of the viscosity load consumed power of hydraulic oil generation in the oil-immersed type motor gas-gap, so this hydraulic electric motor pump has higher efficient; This electric-motor pump is reliable without outrigger shaft, sealing simultaneously, does not therefore have external leakage; The present invention, take away the heat that motor etc. produces by the fluid that flows in the electric-motor pump, saved the fan in the motor, this hydraulic electric motor pump is by spindle hole, the oil suction of orifice plate centrifugal pump and supercharging simultaneously, guaranteed that the main pump oil suction is sufficient, thereby eliminated aerodynamic noise and Cavitation Noise, so that whole hydraulic electric motor pump has excellent quiet performance.That the present invention has is quiet, efficient is high, compact structure, high efficiency cooling, without advantages such as external leakages, can be widely used in the hydraulic system as hydraulic power unit, also be highly suitable for leaking outside simultaneously and quiet occasion.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the plan view of Fig. 1 middle shell 1;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the B-B sectional view of Fig. 2;

Fig. 5 is the plan view of main shaft 4 among Fig. 1.

Reference character and corresponding name are called: housing 1, filler opening 1a, ring runner 1b, relief opening 1c, coolant flow channel 1d, endoporus 1e, drain tap 1f, the first draining hole 1g, drain pan 1k, threading hole 1h, motor stator 2, rotor 3, main shaft 4, spindle hole 4a, orifice plate centrifugal pump 4b, spline 4c, clutch shaft bearing 5, the first screw plugs 6, the first seal ring 7, the first screws 8, the first packing rings 9, the second seal ring 10, oil outlet gland 11, oil outlet 11a, vane pump pump core 12, the three seal ring 12a, the 4th seal ring 12b, pump core print seat 13, the five seal rings 14, the six seal rings 15, the second screw plug 16, the seven seal rings 17, the second screws 18, the 8th seal ring 19, the three screws 20, the nine seal rings 21, outer seal 22, inner end cap 23, the second draining hole 23a, the tenth seal ring 24, the second bearings 25, seal ring gland 26, suspension ring 27, back-up ring 28, terminal box 29.

Embodiment

Such as Fig. 1～shown in Figure 5, the non-oil-immersed type electric hydaulic of a kind of air gap power unit, mainly comprise housing 1, motor stator 2, rotor 3, main shaft 4, oil outlet gland 11, vane pump pump core 12, pump core print seat 13, outer seal 22, inner end cap 23, suspension ring 27, terminal box 29, rotor 3 press-fits with main shaft 4 and is integral, and be supported on housing 1 and the inner end cap 23 by clutch shaft bearing 5 and the second bearing 25, vane pump pump core 12 is connected with main shaft 4 by spline 4c, vane pump pump core 12 is contained in the pump core print seat 13, and by oil outlet gland 11, the second seal ring 10, the 5th seal ring 14, the first screw 8 and the first packing ring 9 are fixed on the housing 1, motor stator 2 is fitted on the housing 1 endoporus 1e, inner end cap 23 and the 9th seal ring 21 are fixed on the housing 1 by the 3rd screw 20, and outer seal 22 and the 8th seal ring 19 are fixed on the housing 1 by the second screw 18.Housing 1 is provided with filler opening 1a, ring runner 1b, coolant flow channel 1d, and main shaft 4 is provided with spindle hole 4a, orifice plate centrifugal pump 4c, and main shaft 4 two ends are provided with the 6th seal ring 15 and the tenth seal ring 24.

Described housing 1 is provided with filler opening 1a, ring runner 1b, relief opening 1c, coolant flow channel 1d, endoporus 1e, the first draining hole 1g, threading hole 1h, drain pan 1k and drain tap 1f.

Described main shaft 4 is provided with spindle hole 4a, orifice plate centrifugal pump 4b and spline 4c, six inclined hole relative level axis inclination 30～60 degree of its aperture plate centrifugal pump 4b, and sense of rotation hypsokinesis 20 ~ 45 degree of rotor 3 are distributed on the main shaft 4 relatively.

The outside of described main shaft 2 and clutch shaft bearing 5,25 combinations of the second bearing is respectively equipped with the 6th seal ring 16 and back-up ring 28, the tenth seal ring 24 and seal ring gland 26.

Described housing 1 is provided with the first draining hole 1g, and inner end cap 23 is provided with the second draining hole 23a, and communicates with drain tap 1f by endoporus 1e, the drain pan 1k of threading hole 1h, housing 1.

Working procedure of the present invention is as follows:

After the motor coil energising of motor stator 2, electromagnetic torque drive motor rotor 3 also drives main shaft 4 and rotates, main shaft 4 is by the rotor in the spline 4c drive vane pump pump core 12, fluid enters in the pump from the filler opening 1a of housing 1, and through ring runner 1b, coolant flow channel 1d in the housing 1, enter chamber, spindle hole 4a between main shaft 4 left end inner end cap 23 and the outer seal 22, the orifice plate centrifugal pump 4b on the main shaft 4 sends into the oil sucting cavity of vane pump pump core 12 after with the fluid supercharging.The high pressure oil of vane pump pump core 12 outputs is discharged by the oil outlet 11a that the oil extraction window enters on the oil outlet gland 11.The fluid that flows in housing 1, among the spindle hole 4a can be taken away the heat of the generations in service such as motor stator 2, rotor 3, and heat also dispels the heat by the outer surface of housing 1 simultaneously.The 6th seal ring 15 and the tenth seal ring 24 at main shaft 4 two ends have stoped fluid to enter the rotor air gap, thereby have avoided the motor gas-gap immersion oil and the viscous friction that produces loss.

Claims

1. non-oil-immersed type blade pump for hydraulic engine of air gap, housing (1) is arranged, also has motor stator (2), rotor (3), main shaft (4), oil outlet gland (11), vane pump pump core (12), pump core print seat (13), outer seal (22), inner end cap (23), suspension ring (27), terminal box (29), it is characterized in that: rotor (3) and main shaft (4) press-fit and are integral, and be supported on housing (1) and the inner end cap (23) by clutch shaft bearing (5) and the second bearing (25), vane pump pump core (12) is connected with main shaft (4) by spline (4c), vane pump pump core (12) is contained in the pump core print seat (13), and by oil outlet gland (11), the second seal ring (10), the 5th seal ring (14), the first screw (8) and the first packing ring (9) are fixed on the housing (1), motor stator (2) is fitted on housing (1) endoporus (1e), inner end cap (23) and the 9th seal ring (21) are fixed on the housing (1) by the 3rd screw (20), and outer seal (22) and the 8th seal ring (19) are fixed on the housing (1) by the second screw (18); Housing (1) is provided with filler opening (1a), ring runner (1b), coolant flow channel (1d), main shaft (4) is provided with spindle hole (4a), orifice plate centrifugal pump (4c), and main shaft (4) two ends are provided with the 6th seal ring (15) and the tenth seal ring (24).

2. the non-oil-immersed type blade pump for hydraulic engine of air gap according to claim 1, it is characterized in that: described housing (1) is provided with relief opening (1c), endoporus (1e), the first draining hole (1g), threading hole (1h), drain pan (1k) and drain tap (1f).

3. the non-oil-immersed type blade pump for hydraulic engine of air gap according to claim 1, it is characterized in that: described main shaft (4) is provided with spindle hole (4a), orifice plate centrifugal pump (4b) and spline (4c), six inclined hole relative level axis inclination 30～60 degree of its aperture plate centrifugal pump (4b), and sense of rotation hypsokinesis 20 ~ 45 degree of rotor (3) are distributed on the main shaft (4) relatively.

4. the non-oil-immersed type blade pump for hydraulic engine of air gap according to claim 1, it is characterized in that: the outside of described main shaft (4) and clutch shaft bearing (5), the second bearing (25) combination is respectively equipped with the 6th seal ring (16) and back-up ring (28), the tenth seal ring (24) and seal ring gland (26).

5. the non-oil-immersed type blade pump for hydraulic engine of air gap according to claim 1, it is characterized in that: described housing (1) is provided with the first draining hole (1g), inner end cap (23) is provided with the second draining hole (23a), and communicates with drain tap (1f) by endoporus (1e), the drain pan (1k) of threading hole (1h), housing (1).