CN103671095A

CN103671095A - Multiple-blade hydraulic pump

Info

Publication number: CN103671095A
Application number: CN201310688782.8A
Authority: CN
Inventors: 陈行
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-03-26
Anticipated expiration: 2033-12-16
Also published as: CN103671095B

Abstract

The invention discloses a multiple-blade hydraulic pump which comprises a casing, a rotor, blades, sealing strips, oil distribution cones and cushion blocks, wherein the rotor is positioned in the center; the casing is positioned at the external part; the oil distribution cones are positioned in hollow circular-truncated-cone surfaces respectively arranged at the two ends of the rotor; the blades are placed in diagonal hollow circular rings of the casing and simultaneously positioned in the grooves of the rotor, and form angles with the rotor; one plane of each blade is adhered to circular-truncated-cone side surfaces of the oil distribution cones; the sealing strips are positioned between the rotor and the blades; the plane sides of the sealing strips are adhered to the rotor; the circular-truncated-cone sides of the sealing strips are adhered to the circular-truncated-cone surfaces E1 of the blades; the cushion blocks are positioned in the diagonal hollow circular rings of the casing, and gaps formed by the casing, the blades, the rotor and the sealing strips are fully filled with the cushion blocks just. The multiple-blade hydraulic pump disclosed by the invention has the advantages that all sealing parts adopt surface sealing, the discharge capacity is large, the pressure is high, the efficiency is high, the specific power is large, the structure is compact, the processing is easy relatively, the cost is relatively low, and the life is long.

Description

A kind of Multi-vane type oil hydraulic pump

Technical field

The present invention relates to a kind of oil hydraulic pump, relate in particular to a kind of Multi-vane type oil hydraulic pump.

Background technique

Existing vane hydraulic pump structure is a rotor eccentricity and is placed in cylinder body, blade radial or be placed in rotor with rotor radius is angled, rotor high-speed rotation during work, blade throws away under the effect of centrifugal force, form Seal cage with cylinder body, during rotation, volume-variation produces pressure.This form vane pump is owing to being by the sealing of Line of contact between blade and cylinder body, so sealability is poor, and delivery pressure is lower, while adding rotation, between blade and rotor and cylinder body, produce very large friction, cause compressor overall wear fast, the life-span is short, and efficiency is low.In addition, during rotation, in order to guarantee that blade can safety pass in and out in rotor, rotor must have suitable diameter, and the discharge capacity that is bound to is like this less, although there is Double-blade type oil hydraulic pump, owing to only having two blades, flow pulsation is larger, and it is large that flow is also owed.

Summary of the invention

The object of this invention is to provide and a kind ofly can realize large discharge capacity, flow pulsation is again little, and all sealings place are again face sealing, and nonabradable Multi-vane type oil hydraulic pump.

For achieving the above object, the present invention has adopted following technical proposal: a kind of Multi-vane type oil hydraulic pump, comprise housing, rotor, blade, Stamping Steel Ribbon, join oil cone and cushion block, rotor is positioned at center, housing is positioned at outside, join oil cone and be positioned at two ends of rotor open circles table top, blade is placed in the hollow ring at housing diagonal angle, also be positioned at the groove of rotor simultaneously, and with rotor at an angle, a plane of blade fits with the frustum cone side of joining oil cone, Stamping Steel Ribbon is between rotor and blade, its plane one side and rotor laminating, round table surface one side is fitted with the round table surface E1 of blade, cushion block is positioned at the hollow ring at housing diagonal angle, just in time fill up by housing, blade, the vacancy that rotor and Stamping Steel Ribbon form.

In above-mentioned a kind of Multi-vane type oil hydraulic pump, described blade is quadrant shape, and total identical four, described blade is enclosed and formed by two plane A1, B1 and cylinder C1, sphere D1 and two round table surface E1, J1; Wherein, C1Shi center is the cylinder that centre of sphere O1, radius are identical with the radius of the cylinder E4 of the hollow ring of housing, D1 is that the centre of sphere is the sphere that O1 radius is identical with rotor billiard table C2 radius, E1 and J1 are round table surface, the diameter of its upper bottom surface and bottom surface is respectively straight line R1S1 and straight line M1N1, and M1R1 and N1S1 are its side buses; Two plane A1 are parallel with B1; The thickness that the distance of two parallel plane A1 and B1 is blade, vane thickness equates with the hollow ring width of housing;

Described Stamping Steel Ribbon has identical eight, wherein an E1 side is round table surface, the diameter of its upper bottom surface and bottom surface is respectively straight line R1S1 and P1Q1, P1R1 and N1S1 are its side buses, K1 side is plane, cross axis and this plane parallel of centre of sphere O 1, its perpendicular distance is half of four-bladed vane thickness of slab of rotor quadrature, G1 is that the centre of sphere is the sphere that O1 radius equates with rotor center billiard table C2 radius, F1 is that the centre of sphere is the sphere that O1 radius equates with housing sphere F4 radius, two faces of H1 and I1 are parallel planes, and the width of Stamping Steel Ribbon equates with vane thickness; Blade and Stamping Steel Ribbon are axisymmetric;

It in the middle of described rotor, is the parallel dolioform billiard table that cuts out two spherical crowns in two, in the middle of billiard table, as symmetry, insert the four-bladed vane of a quadrature, A2 is parallel disk with B2, C2 and D2 are that the centre of sphere is the sphere of O2, I2 and J2 are orthogonal two planes, a blade and two Stamping Steel Ribbons are vertically placed in the groove between I2 and J2, just in time completely closely sealed, E2 is that the centre of sphere is the sphere that O2 radius is identical with housing sphere F4 radius with F2, G2 and H2 are two identical hollow round table part sides, upper and lower two ends of one of them hollow round table are respectively the discs that disk B2 and the straight line K2L2 of take are diameter, the length of straigh line of K2M2 is the width of rotor, whole rotor is not only about billiard table center O 2 symmetries, also be axisymmetric,

The described oil cone of joining is a round platform, have identical two, the radius of upper and lower two end A3 of one of them round platform and B3 equates with rotor hollow round table side G2 and the radius at upper and lower two ends of H2 respectively, highly also equate with the height of rotor hollow round table side G2 and H2, the plane C3 that one side is cut mutually by a plane, the width of plane C3 the widest position is not more than the four-bladed vane thickness of slab of rotor quadrature, and plane C3 and housing annulus parallel plane C4 and D4 fit;

Described housing is the parallel dolioform sphere that cuts out two spherical crowns in two, thickness equates with the width K2M2 of rotor, A4 is the parallel disk that two radiuses equate with B4, sphere F4 be take O4 as the centre of sphere, radius equates with the radius of the large sphere E2 in outside, rotor left and right and F2, the diagonal angle of housing sphere is a hollow ring, annulus width equates with vane thickness, two side C4 of hollow ring are parallel circular planes with D4, E4 is that central shaft is by the cylinder of O4, be positioned on the diagonal of housing, its external diameter equates with the external diameter of blade cylinder C1, and be greater than the external diameter of housing sphere F4, C4 and D4 two planes and are joined the plane C3 of oily cone flank face and the laminating of respective planes that another joins oily cone flank face, whole housing is about billiard table center O 4 symmetries,

Described cushion block is one section of annulus, have identical four, wherein an outside A5 is the cylinder that radius equates with housing diagonal angle annulus E4 external diameter, inner side B5 is the sphere that radius equates with housing sphere F4 radius, two waist C5 and D5 are round table surface, the diameter of this round table surface upper bottom surface and bottom surface is respectively straight line P1Q1 and straight line M1N1, and M1P1 is its side bus, and cushion block is shaped as axisymmetric.

The invention has the beneficial effects as follows:

1) all sealings place are face sealing;

2) discharge capacity is large, and pressure is high, and efficiency is high;

3) specific power is large;

4) compact structure, processing is relatively easy;

5) cost is lower, and the life-span is long.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described;

Fig. 1 is blade of the present invention and Stamping Steel Ribbon shape schematic diagram;

Fig. 2 be Fig. 1 S to T to schematic diagram;

Fig. 3 is rotor shapes schematic diagram of the present invention;

Fig. 4 is the W-W generalized section of Fig. 3;

Fig. 5 is the oily cone-shaped schematic diagram of joining of the present invention;

Fig. 6 is that the P of Fig. 5 is to schematic diagram;

Fig. 7 is housing plan view of the present invention;

Fig. 8 is housing plan view of the present invention;

Fig. 9 is the M-M generalized section of Fig. 8;

Figure 10 is overall structure schematic diagram of the present invention;

Figure 11 is that the K of Figure 10 is to schematic diagram;

Figure 12 is the N-N generalized section of Figure 10;

Figure 13 is running principle schematic diagram of the present invention;

Figure 14 is the U-U generalized section of Figure 10;

Figure 15 is working procedure principle schematic of the present invention;

Figure 16 is the V-V generalized section of Figure 13;

Figure 17 is working procedure principle schematic of the present invention;

In figure: 1. housing, 2. rotor, 3. blade, 4. Stamping Steel Ribbon, 5. joins oil cone, 6. cushion block.

Embodiment

Structure of the present invention as shown in figure 13, rotor 2 is positioned at center, housing 1 is positioned at outside, join oil cone 5 and be positioned at rotor 2 two ends open circles table tops, blade 3 be placed in housing 1 diagonal angle hollow ring (guiding groove) in, also be positioned at the groove of rotor 2 simultaneously, and with rotor 2 at an angle, a plane of blade 3 fits with the frustum cone side of joining oil cone 5, Stamping Steel Ribbon 4 is between rotor 2 and blade 3, its plane one side and rotor 2 laminatings, round table surface one side is fitted with the round table surface E1 of blade 3, cushion block 6 be positioned at housing 1 diagonal angle hollow ring, just in time fill up by housing 1, blade 3, the vacancy that rotor 2 and Stamping Steel Ribbon 4 form.

Fig. 1 and the shape that Figure 2 shows that blade 3 of the present invention and Stamping Steel Ribbon 4.Blade 3 is quadrant shape or approximate quadrant shape, and total identical four, (wherein a slice) enclosed and formed by two plane A1, B1 and cylinder C1, sphere D1 and two round table surface E1, J1; Wherein, C1Shi center is the cylinder that centre of sphere O1, radius are identical with the radius of the cylinder E4 of the hollow ring of housing 1, D1 is that the centre of sphere is the sphere that O1 radius is identical with Fig. 4 rotor 2 billiard table C2 radiuses, E1 and J1 are round table surface, the diameter of its upper bottom surface and bottom surface is respectively straight line R1S1 and straight line M1N1, and M1R1 and N1S1 are its side buses; Two plane A1 are parallel with B1; The distance of two parallel plane A1 and B1 is the thickness of blade 3, and blade 3 thickness equate with the hollow ring width of Fig. 8 housing 1.

Stamping Steel Ribbon 4 has identical eight, wherein an E1 side is round table surface, the diameter of its upper bottom surface and bottom surface is respectively straight line R1S1 and P1Q1, P1R1 and N1S1 are its side buses, K1 side is plane, cross the axis (as shown in Figure 1) and this plane parallel of centre of sphere O 1, its perpendicular distance is half of four-bladed vane thickness of slab of Fig. 4 rotor 2 quadratures, G1 is that the centre of sphere is the sphere that O1 radius equates with Fig. 4 rotor 2 center billiard table C2 radiuses, F1 is that the centre of sphere is the sphere that O1 radius equates with Fig. 8 housing 1 sphere F4 radius, two faces of H1 and I1 are parallel planes, the width of Stamping Steel Ribbon 4 (being the distance of plane H1 and I1) equates with blade 3 thickness, blade 3 and Stamping Steel Ribbon 4 are axisymmetric.

Fig. 3 and the shape that Figure 4 shows that rotor 2 of the present invention.It in the middle of rotor 2, is the parallel dolioform billiard table that cuts out two spherical crowns in two, in the middle of billiard table, as symmetry, insert the four-bladed vane of a quadrature, A2 is parallel disk with B2, C2 and D2 are that the centre of sphere is the sphere of O2, I2 and J2 are orthogonal two planes, by the whole figure of Fig. 1, a blade 3 and two Stamping Steel Ribbons 4 are vertically placed in the groove between I2 and J2, just in time completely closely sealed, E2 is that the centre of sphere is the sphere that O2 radius is identical with housing 1 sphere F4 radius with F2, G2 and H2 are two identical hollow round table part sides, upper and lower two ends of one of them hollow round table are respectively the discs that disk B2 and the straight line K2L2 of take are diameter, the length of straigh line of K2M2 is the width of rotor 2, whole rotor 2 is not only about billiard table center O 2 symmetries, also be axisymmetric.

Fig. 5 and Figure 6 shows that shape of joining oil cone 5 of the present invention.Joining oil cone 5 is round platforms, have identical two, the radius of upper and lower two end A3 of one of them round platform and B3 equates with rotor 2 hollow round table side G2 and the radius at upper and lower two ends of H2 respectively, highly also equate with the height of rotor 2 hollow round table side G2 and H2, the plane C3 that one side is cut mutually by a plane, this plane can be parallel with the bus of joining oil cone 5 frustum cone sides, can be not parallel with the bus of joining oil cone 5 frustum cone sides yet, the width of plane C3 the widest position is not more than the four-bladed vane thickness of slab of rotor 2 quadratures, the spatial position of plane C3 is to determine as follows: guarantee to assemble back plane C3 and corresponding housing 1 annulus parallel plane C4 and D4 and fit, the round table surface of point D3 to E3 is oil-feed face, the position of point E3 is the dull and stereotyped position of leaning on Q4 side plane of the rotor between chamber Q3 and Q4 2 when rotor 2 forwards position shown in Figure 15 to, the round table surface of point F3 to G3 is oil extraction face, the position of point G3 is the dull and stereotyped position of leaning on Q4 side plane of the rotor between chamber Q4 and Q5 2 when rotor 2 forwards position shown in Figure 15 to.

Fig. 7, Fig. 8 and Figure 9 shows that the shape of housing 1 of the present invention.Housing 1 is the parallel dolioform sphere that cuts out two spherical crowns in two, thickness equates with the width K2M2 of rotor 2, A4 is the parallel disk that two radiuses equate with B4, sphere F4 be take O4 as the centre of sphere, radius equates with the radius of the rotor 2 large sphere E2 in outside, left and right and F2, the diagonal angle of housing 1 sphere is a hollow ring, annulus width equates with blade 3 thickness, two side C4 of hollow ring are parallel circular planes with D4, E4 is that central shaft is by the cylinder of O4, be positioned on the diagonal of housing 1, its external diameter equates with the external diameter of blade 3 cylinder C1, and be greater than the external diameter of housing 1 sphere F4, the spatial position of the C4 that annulus is parallel and D4 two planes is with following and determine: guarantee to assemble rear C4 and D4 two planes and and join the plane C3 of oil cone 5 sides and another and join oil and bore the respective planes of 5 sides and fit.Whole housing 1 is about billiard table center O 4 symmetries.

It shown in Figure 12, is the shape of cushion block 6 of the present invention.Cushion block 6 is one section of annulus, have identical four, wherein an outside A5 is the cylinder that radius equates with housing 1 diagonal angle annulus E4 external diameter, interior survey B5 is the sphere that radius equates with housing 1 sphere F4 radius, (its upper and lower thickness equates with the four-bladed vane width K2M2 of rotor 2 quadratures,) two waist C5(and D5) be round table surface, the diameter of this round table surface upper bottom surface and bottom surface be respectively straight line P1Q1 and straight line M1N1(as shown in Figure 1), M1P1 is its side bus.Cushion block 6 is shaped as axisymmetric.

Operation working principle of the present invention is as follows:

As Figure 15, in one end of vane pump, rotor 2, blade 3, Stamping Steel Ribbon 4, joins oil cone 5 and housing 1 oil pocket is divided into five independently Seal cage Q1, Q2, Q3, Q4 and Q5 separately.When rotor 2 is when Figure 14 position turns clockwise, chamber Q2 starts oil suction, and Q3 and Q4 are oil sucting cavity, and Q5 and Q1 are oil-discharging cavity.When forwarding Figure 15 position to, it is maximum that oil sucting cavity Q4 reaches.At this moment, oil sucting cavity Q2, Q3 and Q4 and oil-discharging cavity Q5 and Q1 still keep isolation.Rotor 2 continues rotation clockwise, and chamber Q4 starts oil extraction, and oil sucting cavity Q2 and Q3 constantly expand, and oil-discharging cavity Q5 and Q1 constantly dwindle.When forwarding Figure 16 position to, chamber Q1 oil drains.When rotor 2 continues rotation, new oil sucting cavity starts oil suction, and oil sucting cavity Q2 and Q3 are still in continuous expansion, and chamber Q4 and Q5 are still in continuous oil extraction.When rotor 2 forwards Figure 17 position to, it is maximum that oil sucting cavity Q3 reaches, oil extraction then.When rotor 2 continues to forward to 7a position, chamber Q5 oil drains.When rotor 2 forwards 7b position again to, it is maximum that oil sucting cavity Q2 reaches.So go round and begin again.At the other end of vane pump, situation is also identical with this one end.

Above-described embodiment is used for the present invention that explains, rather than this aspect is limited, and in the protection domain of spirit of the present invention and claim, any modification and change that the present invention is made, all fall into protection scope of the present invention.

Claims

1. a Multi-vane type oil hydraulic pump, it is characterized in that, comprise housing (1), rotor (2), blade (3), Stamping Steel Ribbon (4), join oil cone (5) and cushion block (6) etc., rotor (2) is positioned at center, housing (1) is positioned at outside, join oil cone (5) and be positioned at rotor (2) two ends open circles table top, blade (3) is placed in the hollow ring at housing (1) diagonal angle, also be positioned at the groove of rotor (2) simultaneously, and with rotor (2) at an angle, a plane of blade (3) fits with the frustum cone side of joining oil cone (5), Stamping Steel Ribbon (4) is positioned between rotor (2) and blade (3), its plane one side and rotor (2) laminating, round table surface one side is fitted with the round table surface E1 of blade (3), cushion block (6) is positioned at the hollow ring at housing (1) diagonal angle, just in time fill up by housing (1), blade (3), the vacancy that rotor (2) and Stamping Steel Ribbon (4) form.

2. a kind of Multi-vane type oil hydraulic pump according to claim 1, it is characterized in that, described blade (3) is quadrant shape, and total identical four, described blade (3) is enclosed and formed by two plane A1, B1 and cylinder C1, sphere D1 and two round table surface E1, J1; Wherein, C1Shi center is the cylinder that centre of sphere O1, radius are identical with the radius of the cylinder E4 of the hollow ring of housing (1), D1 is that the centre of sphere is the sphere that O1 radius is identical with rotor (2) billiard table C2 radius, E1 and J1 are round table surface, the diameter of its upper bottom surface and bottom surface is respectively straight line R1S1 and straight line M1N1, and M1R1 and N1S1 are its side buses; Two plane A1 are parallel with B1; The distance of two parallel plane A1 and B1 is the thickness of blade (3), and blade (3) thickness equates with the hollow ring width of housing (1);

Described Stamping Steel Ribbon (4) has identical eight, wherein an E1 side is round table surface, the diameter of its upper bottom surface and bottom surface is respectively straight line R1S1 and P1Q1, P1R1 and N1S1 are its side buses, K1 side is plane, cross axis and this plane parallel of centre of sphere O 1, its perpendicular distance is half of four-bladed vane thickness of slab of rotor (2) quadrature, G1 is that the centre of sphere is the sphere that O1 radius equates with rotor (2) center billiard table C2 radius, F1 is that the centre of sphere is the sphere that O1 radius equates with housing (1) sphere F4 radius, two faces of H1 and I1 are parallel planes, the width of Stamping Steel Ribbon (4) equates with blade (3) thickness, blade (3) and Stamping Steel Ribbon (4) are axisymmetric,

It in the middle of described rotor (2), is the parallel dolioform billiard table that cuts out two spherical crowns in two, in the middle of billiard table, as symmetry, insert the four-bladed vane of a quadrature, A2 is parallel disk with B2, C2 and D2 are that the centre of sphere is the sphere of O2, I2 and J2 are orthogonal two planes, a blade (3) and two Stamping Steel Ribbons (4) are vertically placed in the groove between I2 and J2, just in time completely closely sealed, E2 is that the centre of sphere is the sphere that O2 radius is identical with housing (1) sphere F4 radius with F2, G2 and H2 are two identical hollow round table part sides, upper and lower two ends of one of them hollow round table are respectively the discs that disk B2 and the straight line K2L2 of take are diameter, the length of straigh line of K2M2 is the width of rotor (2), whole rotor (2) is not only about billiard table center O 2 symmetries, also be axisymmetric,

It is described that to join oil cone (5) be a round platform, have identical two, the radius of upper and lower two end A3 of one of them round platform and B3 is equal with the radius at upper and lower two ends of H2 with rotor (2) hollow round table side G2 respectively, highly also equate with the height of rotor (2) hollow round table side G2 and H2, the plane C3 that one side is cut mutually by a plane, the width of plane C3 the widest position is not more than the four-bladed vane thickness of slab of rotor (2) quadrature, and plane C3 and housing (1) annulus parallel plane C4 and D4 fit;

Described housing (1) is the parallel dolioform sphere that cuts out two spherical crowns in two, thickness equates with the width K2M2 of rotor (2), A4 is the parallel disk that two radiuses equate with B4, sphere F4 be take O4 as the centre of sphere, radius equates with the radius of the large sphere E2 in outside, rotor (2) left and right and F2, the diagonal angle of housing (1) sphere is a hollow ring, annulus width equates with blade (3) thickness, two side C4 of hollow ring are parallel circular planes with D4, E4 is that central shaft is by the cylinder of O4, be positioned on the diagonal of housing (1), its external diameter equates with the external diameter of blade (3) cylinder C1, and be greater than the external diameter of housing (1) sphere F4, C4 and D4 two planes and are joined plane C3 and another respective planes of joining oil cone (5) side of oil cone (5) side and are fitted, whole housing (1) is about billiard table center O 4 symmetries,

Described cushion block (6) is one section of annulus, have identical four, wherein an outside A5 is the cylinder that radius equates with housing (1) diagonal angle annulus E4 external diameter, inner side B5 is the sphere that radius equates with housing (1) sphere F4 radius, two waist C5 and D5 are round table surface, the diameter of this round table surface upper bottom surface and bottom surface is respectively straight line P1Q1 and straight line M1N1, and M1P1 is its side bus, and cushion block (6) is shaped as axisymmetric.