CN103062160A - Integrated motor vane pump hydraulic power unit - Google Patents

Abstract

An integral motor vane pump hydraulic power unit, the motor rotor (16) is press-fitted with the main shaft (15), and is supported on the pump base (5) and the pump base (5) through the first bearing (14) and the second bearing (18). On the box body (1), the high-pressure vane pump core (12) is connected to the main shaft (15) through a spline (15a), the high-pressure vane pump core (12) is installed in the pump base (5), and the motor stator (17) is press-fitted on the bore (1d) of the housing (1). The oil inside the tank (1) enters the oil suction chamber of the high-pressure vane pump (12) through the large oil hole (5a) and the small oil hole (5b) on the pump base (5), and the discharge of the high-pressure vane pump core (12) The oil chamber communicates with the oil outlet (7a) of the oil outlet gland (7) to output high-pressure oil. The return oil of the hydraulic system flows back into the tank (1) through the oil return port (22a) through the cooling pipe (21) and the oil return pipe (19).

Description

A kind of integrated type motor vane pump hydraulic power unit

Technical field

The present invention relates to hydraulic power unit, relate in particular to the integrated electric hydraulic power unit.

Background technique

[0002] is at present the discrete type structural form take motor as motive hydraulic power unit, its basic structure form is that motor and oil hydraulic pump form dynamo oil pump package by mechanisms such as coupling, connecting sleeve, supports, by annexes such as straight tubes, bend pipe, pipe joint, Sealing, stop valve oil hydraulic pump is linked to each other with fuel tank, whole hydraulic power unit complex structure, efficient is lower, volume and weight is larger again; All there are possible external leakage in pipeline connection part between oil hydraulic pump and the fuel tank, the shaft extension place of oil hydraulic pump etc. simultaneously; In addition, because independently oil hydraulic pump has the housing of sealing and is independent of outside the fuel tank, be connected by pipeline between its inlet port and the fuel tank, the increase of flow resistance and the compression in oil sucting cavity space have been caused, cause the negative pressure of oil suction runner part and the oil suction deficiency of oil hydraulic pump, cause Bubble, Cavitation Noise and vibration, therefore whole hydraulic power unit noise is also very large.

Summary of the invention

The purpose of this invention is to provide a kind of integrated type motor vane pump hydraulic power unit.

The technical solution adopted for the present invention to solve the technical problems is: a kind of integrated type motor vane pump hydraulic power unit, casing 1 is arranged, also has high pressure vane pump core 12, rotor 16, motor stator 17, main shaft 15, pump seat 5, oil outlet gland 7, rotor 16 press-fits with main shaft 15 and is integral, and be supported on pump seat 5 and the casing 1 by clutch shaft bearing 14 and the second bearing 18, high pressure vane pump core 12 is connected with main shaft 15 by spline 15a, pump seat 5 is by the first seal ring 4, the first screw 2 and the first packing ring 3 are fixed on the casing 1, high pressure vane pump core 12 is contained in the pump seat 5, and by oil outlet gland 7, the second seal ring 6, the second screw 10 and the second packing ring 11 are fixed on the pump seat 5, motor stator 17 is fitted on the endoporus 1d of casing 1, the oil-discharging cavity of high pressure vane pump core 12 communicates with the oil outlet 7a of oil outlet gland 7, the second manifold block 22, cooling tube 21, the first manifold block 20 connects together with return tube 19, and is fixed on the casing 1 by the first manifold block 20 and the second manifold block 22.Be provided with oil-feed window 1a, interior radiating fin 1b, outer radiating fin 1c and endoporus 1d in the casing 1, pump seat 5 is provided with large oilhole 5a and little oilhole 5b.

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

The hydraulic power unit of the discrete type structure that described integrated type motor vane pump hydraulic power unit is formed by connecting the individual components such as drive motor-coupling-oil hydraulic pump, fuel tank, merge one from structure, form by " hydraulic pressure battery ", removed the coupling between the annexes such as connecting pipeline between fuel tank and the oil hydraulic pump, joint and motor and the oil hydraulic pump, not only so that the hydraulic power unit structure is compacter, volume is little, lightweight; Oil hydraulic pump and motor immerse in the hydraulic oil fully, removed motor ventilating fan, with fluid and casing heat radiation, oil hydraulic pump is without enclosing housing, avoid the negative pressure of oil suction runner part and caused the not enough problem of oil suction of Bubble and oil hydraulic pump, eliminate aerodynamic noise and Cavitation Noise, so that whole hydraulic power unit has excellent quiet performance, avoided simultaneously external leakage.That the present invention has is quiet, compact structure, efficient is high, heat radiation is quick, without advantages such as external leakages, can be widely used in the hydraulic system as power unit, occasion and quiet occasion are highly suitable for leaking outside.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is that the P of Fig. 1 is to view;

Fig. 3 is that the K of Fig. 2 is to view;

Fig. 4 is the plan view of casing 1 among Fig. 1;

Fig. 5 is that the K-K of Fig. 4 is to sectional view;

Fig. 6 is the plan view of pump seat 5 among Fig. 1;

Fig. 7 is that the A-A of Fig. 6 is to sectional view;

Fig. 8 is that the B-B of Fig. 6 is to sectional view.

Reference character and corresponding name are called: casing 1, oil-feed window 1a, interior radiating fin 1b, outer radiating fin 1c, endoporus 1d, the first screw 2, the first packing rings 3, the first seal rings 4, pump seat 5, large oilhole 5a, little oilhole 5b, circular groove 5c, pin hole 5d, the second seal ring 6, oil outlet gland 7, oil outlet 7a, the 3rd seal ring 8, the four seal rings 9, the second screws 10, the second packing rings 11, high pressure vane pump core 12, pin 13, clutch shaft bearing 14, main shaft 15, spline 15a, rotor 16, motor stator 17, the second bearings 18, return tube 19, the first manifold block 20, cooling tube 21, the second manifold blocks 22, return opening 22a, terminal box 23, air-strainer 24.

Embodiment

Such as Fig. 1～shown in Figure 8, a kind of integrated type motor vane pump hydraulic power unit mainly includes casing 1, high pressure vane pump 12, rotor 16, motor stator 17, main shaft 15, pump seat 5, oil outlet gland 7, the first manifold block 20, the second manifold block 22, cooling tube 21 and return tube 19.Rotor 16 press-fits with main shaft 15 and is integral, and be supported on pump seat 5 and the casing 1 by clutch shaft bearing 14 and the second bearing 18, high pressure vane pump core 12 is connected with main shaft 15 by spline 15a, pump seat 5 is by the first seal ring 4, the first screw 2 and the first packing ring 3 are fixed on the casing 1, high pressure vane pump core 12 is contained in the pump seat 5, and by oil outlet gland 7, the second seal ring 6, the second screw 10 and the second packing ring 11 are fixed on the pump seat 5, motor stator 17 is fitted on the endoporus 1d of casing 1, the oil-discharging cavity of high pressure vane pump core 12 communicates with the oil outlet 7a of oil outlet gland 7, the second manifold block 22, cooling tube 21, the first manifold block 20 connects together with return tube 19, and is fixed on the casing 1 by the first manifold block 20 and the second manifold block 22.Be provided with oil-feed window 1a, interior radiating fin 1b, outer radiating fin 1c and endoporus 1d in the casing 1, pump seat 5 is provided with large oilhole 5a and little oilhole 5b.

Described casing 1 is provided with a plurality of oil-feed window 1a and endoporus 1d, at the uniform a plurality of interior radiating fin 1b of casing 1 internal face, and the uniform a plurality of outer radiating fin 1c of outer wall.

Uniform a plurality of large oilhole 5a and little oilhole 5b are provided with circular groove 5c in pump seat 5 inside on the described pump seat 5, are arranged symmetrically with two pin hole 5f at pump seat 5 simultaneously.

The working procedure of a kind of integrated type motor of the present invention vane pump hydraulic power unit is as follows:

When powering to the motor coil in the motor stator 17 by terminal box 23, electromagnetic torque drive motor rotor 16 drives main shaft 15 and rotates, main shaft 15 drives rotor work in the high pressure vane pump core 12 by its spline 15a, the oil sucting cavity that the fluid of casing 1 inside enters high pressure vane pump pump 12 by large oilhole 5a and the little oilhole 5b of pump seat 5.The oil-discharging cavity of high pressure vane pump pump 12 communicates with the oil outlet 7a of oil outlet gland 7, and the output high pressure oil enters hydraulic system.The high-temperature oil liquid that hydraulic system flows back to flows back in the casing 1 through return opening 22a, cooling tube 21, return tube 19.High-temperature oil liquid distributes certain heat when the cooling tube 21, fluid housing 1 interior when mobile interior radiating fin 1b on the housing 1 heat in the fluid is delivered to casing 1 outer surface, and by outer radiating fin 1c heat radiation, play the effect that strengthens cooling oil.

Claims (3)

1. An integral motor vane pump hydraulic power unit, which has a casing (1), a high-pressure vane pump core (12), a motor rotor (16), a motor stator (17), a main shaft (15), and a pump base ( 5) Oil outlet gland (7), characterized in that: the motor rotor (16) is press-fitted with the main shaft (15), and is supported on the pump base by the first bearing (14) and the second bearing (18) (5) and the casing (1), the high-pressure vane pump core (12) is connected with the main shaft (15) through the spline (15a), and the pump base (5) is connected through the first sealing ring (4), the first screw (2 ) and the first gasket (3) are fixed on the box body (1), the high-pressure vane pump core (12) is installed in the pump base (5), and passes through the oil outlet gland (7), the second sealing ring (6 ), the second screw (10) and the second washer (11) are fixed on the pump base (5), the motor stator (17) is press-fitted on the inner hole (1d) of the box (1), and the high-pressure vane pump core ( 12) The oil discharge chamber communicates with the oil outlet (7a) of the oil outlet gland (7), the second oil circuit block (22), the cooling pipe (21), the first oil circuit block (20) and the oil return pipe (19) are connected together and fixed on the box body (1) through the first oil block (20) and the second oil block (22); the box body (1) is equipped with an oil inlet window (1a), Inner cooling fins (1b), outer cooling fins (1c) and inner holes (1d), large oil holes (5a) and small oil holes (5b) are provided on the pump base (5). 2. The integral motor vane pump hydraulic power unit according to claim 1, characterized in that: the box body (1) is provided with a plurality of oil inlet windows (1a) and inner holes (1d), and in the box body (1) A plurality of inner cooling fins (1b) are evenly distributed on the inner wall surface, and a plurality of outer cooling fins (1c) are evenly distributed on the outer wall surface. 3. The integral motor vane pump hydraulic power unit according to claim 1, characterized in that: the pump base (5) is evenly distributed with a plurality of large oil holes (5a) and small oil holes (5b), An annular groove (5c) is provided inside the pump base (5), and two pin holes (5f) are arranged symmetrically on the pump base (5).

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