CN201428594Y

CN201428594Y - High and low voltage composite pump

Info

Publication number: CN201428594Y
Application number: CN2009201598591U
Authority: CN
Inventors: 屠宝周
Original assignee: DEKEMA HYDRAULIC MANUFACTURE Co Ltd
Current assignee: DEKEMA HYDRAULIC MANUFACTURE Co Ltd
Priority date: 2009-06-18
Filing date: 2009-06-18
Publication date: 2010-03-24
Anticipated expiration: 2019-06-18

Abstract

The utility model relates to a high and low voltage composite pump, which belongs to the hydraulic transmission and control technical field, and comprises a pump shell, a pump cover, a blade pump bodyand a gear pump, wherein the blade pump body comprises stators, rotors, blades, an allocating disk and a side plate, the rotors rotate in the stator, are regularly spaced on the peripheral direction,and form narrow slots closing to the external circumference, the blades are arranged in the narrow slots, and the allocating disk and the side plate are arranged on the inner wall of the pump body. Avariable quantity blade pump further comprises a voltage regulation device and a flow rate regulation device which are respectively arranged on the two sides of the blade pump body and act on the stators. The high and low voltage composite pump has the advantages that the mounting volume is reduced, a hydraulic system is integrated, the use efficiency of a motor is increased, and the production cost is reduced.

Description

A kind of high low pressure unipump

Technical field:

The utility model belongs to hydraulic transmission and control technique field, is specifically related to a kind of high low pressure unipump.

Background technique:

Single acting vane pump is made up of stator, rotor, blade, oil distribution casing, transmission shaft, the pump housing, end cap etc., and eccentric distance e is arranged between stator and rotor, and blade is contained in the rotor, and can in groove, slide, when rotor turns round, because action of centrifugal force makes blade abut against stator inner wall.

Variable vane pump is meant the oil hydraulic pump that discharge capacity can be regulated, it is by changing the 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 realizing automatically, wherein limited pressure variable vane pump is a kind of dynamical element that utilizes load variations to realize Flow-rate adjustment automatically, its effect is after pressure is elevated to the qualification pressure of preset, flow reduces automatically, therefore is used widely in practice.

Gear pump also is a kind of pump body structure commonly used in the oil hydraulic pump, is to constitute the seal operation volume by intermeshing driving and driven gear in the pump housing with the two end cap and the pump housing, and gear meshing left and right two chambeies of naming a person for a particular job separate, and have formed suction, pumping cavity.

Present variable vane pump and gear pump all are independent operatings generally in use, for two pump housings are turned round simultaneously, drive vane pump respectively as power source and gear pump turns round with regard to two motors of needs, the utilization rate of motor is very low in this case, and also increased in use required space is installed, increased user cost.

The model utility content:

In order to overcome above-mentioned shortcoming of the prior art, the utility model provides a kind of compact structure, volume is little, cost is low novel high low pressure unipump.

The technical solution of the utility model is as follows:

A kind of high low pressure unipump, comprise pump case, pump cover, blade pump casing and gear pump, wherein blade pump casing comprise the stator that is contained in the pump housing, in described stator rotation and in a circumferential direction with rule at interval and near its excircle form slit rotor, be arranged on blade in the slit, be arranged on thrust plate and side plate on the pump housing inwall, wherein said high low pressure unipump also comprises regulator and the flow regulator that acts on stator, and wherein regulator and flow regulator separate from the blade pump casing both sides;

The driving gear shaft of described gear pump is driven in the rotating shaft that drives the motion of blade pump casing internal rotor;

Described regulator comprises the housing that is connected as a single entity with pump case, be arranged in the housing and the top that contacts with stator plug, the pressure regulating cover of seal casinghousing, the pressure regulating screw that passes pressure regulating cover and contact with housing internal pressure-regulating spring seat is provided with pressure adjusting spring between described top plug and the pressure adjusting spring seat;

Described flow regulator comprises and the direct acting Flow-rate adjustment piston of stator that the Flow-rate adjustment piston is connected with flow adjustment screw by the Flow-rate adjustment push rod, and flow adjustment screw is fixed on the pump case and by the flow locking nut by the Flow-rate adjustment nut and locks.

High low pressure unipump in the technique scheme, wherein said thrust plate are powder metallurgy formula thrust plate, and described side plate is a powder metallurgy formula side plate.

High low pressure unipump in the technique scheme, wherein said high low pressure unipump also comprises the noise controlling device, described noise controlling device comprises lock screw and retainer nut, described lock screw passes the retainer nut and pump case acts on stator, by regulating lock screw noise is reduced to normally when noise is bigger than normal when variable vane pump uses.

High low pressure unipump in the technique scheme, the housing of wherein said regulator are provided with and rush down hydraulic fluid port, when having liquid to infiltrate in the regulator, in order to guarantee the performance of regulator, the liquid in the regulator are discharged from rushing down hydraulic fluid port.

Owing to adopted above-mentioned technological scheme, the utlity model has following beneficial effect:

1, the utility model integrates gear pump and variable vane pump, only needs a motor promptly can drive two pump housings and turns round, and has improved the utilization efficiency of motor.

2, be one at the utility model middle gear pump and variable vane pump, so its volume reduced installation volume less than the volume sum of gear pump and variable vane pump independently, made hydraulic system integrated.

3, the utility model has been abandoned thrust plate and the side plate that the preparation of copper spare technology is cast in traditional passing through, and the powder metallurgy formula thrust plate and the side plate that have adopted powder metallurgical technique to make have reduced production cost.

4, the utility model in use, operator can carry out manual adjustment to the flow of pressure in the pump housing and pump respectively by regulator and flow regulator.

Description of drawings:

Fig. 1 is the utility model one embodiment's a erection drawing;

Fig. 2 is the outside schematic representation of Fig. 1;

Fig. 3 is an A-A partial schematic diagram among Fig. 2.

The figure number explanation:

1, pump case; 2, pump cover; 3, blade pump casing, 31, stator, 32, rotor, 33, blade, 34, thrust plate, 35, side plate; 4, gear pump, 41, driving gear shaft; 5, regulator, 51, housing, 52, the top plug, 53, pressure regulating cover, 54, the pressure adjusting spring seat, 55, pressure regulating screw, 56, pressure adjusting spring, 57, rush down hydraulic fluid port; 6, flow regulator, 61, the Flow-rate adjustment piston, 62, the Flow-rate adjustment push rod, 63, flow adjustment screw, 64, the Flow-rate adjustment nut, 65, the flow locking nut; 7, noise controlling device, 71, lock screw, 72, the retainer nut.

Embodiment:

For the technical solution of the utility model can better be understood, the utility model is further described below in conjunction with Figure of description.

Embodiment 1:

As Fig. 1, Fig. 2 and a kind of high low pressure unipump shown in Figure 3, comprise pump case 1, pump cover 2, blade pump casing 3 and gear pump 4, wherein blade pump casing 3 comprise the stator 31 that is contained in the pump housing, described stator 31 in rotation and in a circumferential direction with rule at interval and near the rotor 32 of its excircle formation slit, be arranged on blade 33 in the slit, be arranged on thrust plate 34 and side plate 35 on the pump housing inwall; Wherein said variable vane pump also comprises regulator 5, flow regulator 6 and the noise controlling device 7 that acts on stator 31, and wherein regulator 5 and flow regulator 6 separate from blade pump casing 3 both sides;

Described regulator 5 comprises the housing 51 that is connected as a single entity with pump case 1, be arranged in the housing 51 and the top that contacts with stator 31 plug 52, the pressure regulating cover 53 of seal casinghousing 51, the pressure regulating screw 55 that passes pressure regulating cover 53 and contact with housing 51 internal pressure-regulating spring seats 54, be provided with pressure adjusting spring 56 between described top plug 52 and the pressure adjusting spring seat 54, described housing is provided with and rushes down hydraulic fluid port 57;

Described flow regulator 6 comprises and stator 31 direct acting Flow-rate adjustment pistons 61, Flow-rate adjustment piston 61 is connected with flow adjustment screw 63 by Flow-rate adjustment push rod 62, and flow adjustment screw 63 is fixed on the pump case 1 and by flow locking nut 65 by Flow-rate adjustment nut 64 and locks;

Described thrust plate is a powder metallurgy formula thrust plate, and described side plate is a powder metallurgy formula side plate;

Described noise controlling device 7 comprises lock screw 71 and retainer nut 72, and described lock screw 71 passes retainer nut 72 and pump case 1 acts on stator 31.

Working procedure of the present utility model is as follows:

Owing to be eccentric the installation between stator in the vane pump and the rotor, therefore the size of the confined space that forms between two blades and the stator on the rotor when rotor shaft rotates under driven by motor is different, the part that working space increases between blade, pressure reduces, oil suction from the oil sucting cavity of thrust plate; The part that blade space reduces, pressure increases, and oil is extruded from the pumping cavity of thrust plate; Regulator in the utility model directly acts on stator, changes the eccentric angle between stator and the rotor, thereby adjusts the pressure amplitude in the pump housing; Flow regulator also directly acts on stator, and when calling in flow adjustment screw in the pump housing, flow adjustment screw promotes Flow-rate adjustment screw rod and Flow-rate adjustment piston extruding stator, and flow is diminished, and when accessing in the other direction, flow increases;

Because the driving gear shaft of gear pump is driven in the rotating shaft that drives the motion of blade pump casing internal rotor, therefore in the vane pump running, the driving gear shaft of rotating shaft driven gear pump moves, and makes gear pump also turn round, thereby reaches the effect of driven by motor two pump operations.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any formal and substantial restriction, all those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, be equivalent embodiment of the present utility model; Simultaneously, all foundations essence technology of the present utility model all still belongs in the scope of the technical solution of the utility model change, modification and the differentiation of any equivalent variations that above embodiment did.

Claims

1, a kind of high low pressure unipump, comprise pump case (1), pump cover (2), blade pump casing (3) and gear pump (4), wherein blade pump casing (3) comprises the stator (31) that is contained in the pump housing (3), rotation also forms the rotor (32) of slit in a circumferential direction with rule interval and close its excircle in described stator (31), be arranged on the blade (33) in the slit, be arranged on thrust plate (34) and side plate (35) on the pump housing inwall, it is characterized in that: described high low pressure unipump also comprises regulator (5) and the flow regulator (6) that acts on stator (31), and wherein regulator (5) and flow regulator (6) separate from the blade pump casing both sides;

The driving gear shaft (41) of described gear pump (4) is driven in the rotating shaft that drives blade pump casing (3) internal rotor (32) motion;

Described regulator (5) comprises the housing (51) that is connected as a single entity with pump case (1), be arranged in the housing (51) and the top that contacts with stator (31) plug (52), the pressure regulating cover of seal casinghousing (53), the pressure regulating screw (55) that passes pressure regulating cover (53) and contact with housing internal pressure-regulating spring seat (54) is provided with pressure adjusting spring (56) between described top plug (52) and the pressure adjusting spring seat (54);

Described flow regulator (6) comprises and the direct acting Flow-rate adjustment piston of stator (31) (61), Flow-rate adjustment piston (61) is connected with flow adjustment screw (63) by Flow-rate adjustment push rod (62), and flow adjustment screw (63) is fixed on the pump case and by flow locking nut (65) by Flow-rate adjustment nut (64) and locks.

2, high low pressure unipump according to claim 1 is characterized in that: described thrust plate is a powder metallurgy formula thrust plate, and described side plate is a powder metallurgy formula side plate.

3, high low pressure unipump according to claim 1, it is characterized in that: described high low pressure unipump also comprises noise controlling device (7), described noise controlling device comprises lock screw (71) and retainer nut (72), and described lock screw (71) passes retainer nut (72) and pump case (1) acts on stator (31).

4, high low pressure unipump according to claim 1 is characterized in that: the housing of described regulator (51) is provided with and rushes down hydraulic fluid port (57).