CN103711637A

CN103711637A - Multiple-blade type oil motor

Info

Publication number: CN103711637A
Application number: CN201310690099.8A
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: 2014-04-09
Anticipated expiration: 2033-12-16
Also published as: CN103711637B

Abstract

本发明公开了一种多叶片式油马达，它包括壳体、转子、叶片、密封条和垫块，转子位于中心，壳体位于外部，叶片安放在壳体对角的空心圆环内，同时也位于转子的槽内，并与转子成一个角度，叶片的一个平面与转子的圆台侧面相切，密封条位于转子和叶片之间，其平面一侧与转子贴合，圆台面一侧则与叶片的圆台面E1贴合，垫块位于壳体对角的空心圆环内，正好填满由壳体、叶片、转子和密封条形成的空缺。本发明所有密封处均为面密封；体积小，扭矩大，效率高；比功率大；结构紧凑，加工相对容易；成本较低，寿命长。The invention discloses a multi-vane oil motor, which comprises a casing, a rotor, blades, sealing strips and spacers. It is also located in the groove of the rotor and forms an angle with the rotor. One plane of the blade is tangent to the side of the circular table of the rotor. The sealing strip is located between the rotor and the blade. The circular table surface E1 of the blade fits together, and the spacer is located in the hollow ring at the opposite corner of the housing, just filling the vacancy formed by the housing, the blade, the rotor and the sealing strip. All sealing parts of the present invention are surface seals; small volume, large torque, high efficiency; high specific power; compact structure, relatively easy processing; low cost, long life.

Description

A kind of Multi-vane type oil motor

Technical field

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

Background technique

Existing vane motor structure is a rotor eccentricity and is placed in cylinder body, blade radial or be placed in rotor with rotor radius is angled, during work, blade throws away under the effect of spring or oil pressure, form Seal cage with cylinder body, this form vane motor is owing to being by the sealing of Line of contact between blade and cylinder body, therefore sealability is poor, output torque is lower, while adding rotation, between blade and rotor and cylinder body, produce very large friction, cause vane motor overall wear fast, 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, like this certainly will volume large, specific power be low, although there is Double-blade type oil hydraulic motor, but owing to only having two blades, output torque pulsation is larger, and it is large that output torque is also owed.

Summary of the invention

The object of this invention is to provide that a kind of can to realize specific power large, output torque is large, and output torque pulsation is again little, and all sealings place are again face sealing, and nonabradable Multi-vane type oil motor.

In order to achieve the above object, the technical solution used in the present invention is as follows: a kind of Multi-vane type oil motor, comprise housing, rotor, blade, Stamping Steel Ribbon and cushion block, rotor is positioned at center, housing is positioned at outside, 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, plane of blade and the frustum cone side of rotor are tangent, 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.

At above-mentioned a kind of Multi-vane type oil motor, described blade is quadrant shape, and total identical four, wherein a slice 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 E3 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 O1, 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 equals rotor line segment O2M2, two faces of H1 and I1 are parallel planes, its half long OP1 equates with housing cylinder F3 radius, width equates with width of blade, R1 and the S1 inclined-plane that to be two gradients equate for the gradient of B3 with middle D3, 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, cydariform billiard table two is two identical hollow round tables, A2 is parallel disk with B2, R2 is also parallel disk with S2, 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 central shaft is crossed the cylinder that O2 radius is identical with housing cylinder F3 radius with F2, G2 and H2 are two identical hollow round table part sides, one upper and lower two ends of side round platform were respectively disk A2 and disk R2, upper and lower two ends of opposite side round platform are respectively disk B2 and disk S2, the length of straigh line of K2M2 is the width of rotor, two frustum cone side G2 and H2 and corresponding housing hollow ring parallel plane C3 and D3 fit, whole rotor is not only about billiard table center O 2 symmetries, also be axisymmetric,

Described housing is the parallel dolioform sphere that cuts out two spherical crowns in two, thickness equates with the width K2M2 of rotor, A3 is the parallel disk that two radiuses equate with B3, F3 is cylinder, its central shaft is crossed O3, radius equates with the radius of rotor left and right outside E2 and F2 cylinder, the diagonal angle of housing cylinder is a hollow ring, annulus width equates with vane thickness, two side C3 of hollow ring are parallel circular planes with D3, E3 is that central shaft is by the cylinder of O3, 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 cylinder F3, the C3 that annulus is parallel and D3 two planes fit with corresponding rotor two hollow round table side G2 and H2, whole housing is about billiard table center O 3 symmetries,

Described cushion block is one section of annulus, have identical four, wherein an outside A4 is the cylinder that radius equates with housing diagonal angle annulus E3 external diameter, inner side B4 is the sphere that radius equals rotor line segment O2M2, its upper and lower thickness equates with the four-bladed vane width K2M2 of rotor quadrature, and two waist C4 and D4 are round table surface, and the diameter of this round table surface upper bottom surface and bottom surface is respectively straight line P1Q1 and M1N1, M1P1 is its side bus, and cushion block is shaped as axisymmetric.

The advantage that the present invention has is:

1) all sealings place are face sealing;

2) volume is little, and moment of torsion is large, 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 is the left view of Fig. 1;

Fig. 3 be Fig. 1 S to T to schematic diagram;

Fig. 4 is rotor shapes schematic diagram of the present invention;

Fig. 5 is the W-W generalized section of Fig. 4;

Fig. 6 is the plan view of housing of the present invention;

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

Fig. 8 is the M-M generalized section of Fig. 7;

Fig. 9 is overall structure schematic diagram of the present invention;

Figure 10 is that the K of Fig. 9 is to schematic diagram;

Figure 11 is the N-N generalized section of Fig. 9;

Figure 12 is running principle schematic diagram of the present invention;

Figure 13 is the U-U generalized section of Fig. 9;

Figure 14 is working procedure principle schematic of the present invention;

Figure 15 is the V-V generalized section of Figure 12;

Figure 16 is working procedure principle schematic of the present invention.

In figure: 1. housing, 2. rotor, 3. blade, 4. Stamping Steel Ribbon, 5 cushion blocks.

Embodiment

Structure of the present invention as shown in figure 12, rotor 2 is positioned at center, housing 1 is positioned at outside, blade 3 is placed in the hollow ring (guiding groove) at housing 1 diagonal angle, also be positioned at the groove of rotor 2 simultaneously, and with rotor 2 at an angle, plane of blade 3 and the frustum cone side of rotor 2 are tangent, Stamping Steel Ribbon 4 is between rotor 2 and blade, its plane one side and rotor 2 laminatings, round table surface one side is fitted with the round table surface E1 of blade 3, and cushion block 5 is positioned at the hollow ring at housing 1 diagonal angle, just in time fills up the vacancy being formed by housing 1, blade 3, rotor 2 and Stamping Steel Ribbon 4.

Fig. 1 and the shape that Figure 3 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 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 E3 of the hollow ring of housing 1, D1 is that the centre of sphere is the sphere that O1 radius is identical with Fig. 5 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. 7 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 O1, 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. 5 rotor 2 center billiard table C2 radiuses, F1 is that the centre of sphere is the sphere that O1 radius equals Fig. 4 rotor 2 line segment O2M2, two faces of H1 and I1 are parallel planes, its half long OP1 equates with Fig. 7 housing 1 cylinder F3 radius, width equates with blade 3 width, R1 and the S1 inclined-plane that to be two gradients equate for the gradient of B3 with face D3 in Fig. 7.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. 4 and the shape that Figure 5 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, cydariform billiard table two is two identical hollow round tables, A2 is parallel disk with B2, R2 is also parallel disk with S2, 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 central shaft is crossed the cylinder that O2 radius is identical with housing 1 cylinder F3 radius with F2, G2 and H2 are two identical hollow round table part sides, one upper and lower two ends of side round platform were respectively disk A2 and disk R2, upper and lower two ends of opposite side round platform are respectively disk B2 and disk S2, the length of straigh line of K2M2 is the width of rotor 2, the spatial position of two frustum cone side G2 and H2 is to determine as follows: after guaranteeing to assemble, two frustum cone side G2 and H2 and corresponding housing 1 hollow ring parallel plane C3 and D3 fit, whole rotor 2 is not only about billiard table center O 2 symmetries, also be axisymmetric.

Fig. 6, Fig. 7 and Figure 8 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, A3 is the parallel disk that two radiuses equate with B3, F3 is cylinder, its central shaft is crossed O3, radius equates with the radius of E2 outside rotor 2 left and right and F2 cylinder, the diagonal angle of housing 1 cylinder is a hollow ring, annulus width equates with blade 3 thickness, two side C3 of hollow ring are parallel circular planes with D3, E3 is that central shaft is by the cylinder of O3, 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 cylinder F3, the spatial position of the C3 that annulus is parallel and D3 two planes is to determine as follows: guarantee to assemble rear C3 and D3 two planes and fit with corresponding 2 liang of hollow round table side G2 of rotor and H2, the sphere of K3G3H3 is oil-feed face, the position of G3H3 is the dull and stereotyped position by Q4 side plane of the rotor between chamber Q3 and Q4 2 when rotor 2 forwards position shown in Figure 14 to, the sphere of L3I3J3 is oil extraction face, the position of I3J3 is the dull and stereotyped position by Q5 side plane of the rotor between chamber Q4 and Q5 2 when rotor 2 forwards position shown in Figure 14 to.Whole housing 1 is about billiard table center O 3 symmetries.

Figure 11 shows that the shape of cushion block 5 of the present invention.Cushion block 5 is one section of annulus, have identical four, wherein an outside A4 is the cylinder that radius equates with housing 1 diagonal angle annulus E3 external diameter, inner side B4 is the sphere that radius equals Fig. 4 rotor 2 line segment O2M2, its upper and lower thickness equates with the four-bladed vane width K2M2 of rotor 2 quadratures, and two waist C4 and D4 are round table surface, the diameter of this round table surface upper bottom surface and bottom surface be respectively straight line P1Q1 and M1N1(as shown in Figure 1), M1P1 is its side bus, and cushion block 5 is shaped as axisymmetric.

Operation working principle of the present invention is as follows:

As shown in figure 14, in one end of oil hydraulic motor, rotor 2, blade 3, Stamping Steel Ribbon 4 and housing 1 are divided into five independently Seal cage Q1, Q2, Q3, Q4 and Q5 separately by oil pocket.

One end at rotor 2, when rotor 2 is when oil-feed initial position (as Figure 13), high pressure oil enters oil pocket Q1 from joining the oil-feed face of oil cone, as Figure 14, at this moment oil pocket Q4 and Q5 have been full of high pressure oil, and oil pocket Q2 and Q3 are low pressure oil, five pressure reduction that oil pocket forms, on rotor 2, produce moment of torsion, rotor 2 is rotated counterclockwise, then promote blade 3 and be rotated counterclockwise.When rotor 2 is rotated counterclockwise, the low pressure oil in oil pocket Q2 and Q3 is discharged by joining the oil extraction face of oil cone.When high pressure oil continuation enters oil pocket Q1, Q4 and Q5 from joining the oil-feed face of oil cone, rotor 2 continues to be rotated counterclockwise.

When rotor 2 forwards Figure 14 position to, and while continuing to be rotated counterclockwise, oil pocket Q4 becomes low pressure oil-discharging cavity then from high pressure oil suction chamber, and high pressure oil continues to enter oil pocket Q1 and Q5, and oil pocket Q2 and Q3 are still low pressure oil-discharging cavity.The moment of torsion of the poor generation of oil pressure continues drive rotor 2 and is rotated counterclockwise, when rotor 2 rotates counterclockwise Figure 15 position, low pressure oil in oil-discharging cavity Q2 drains, and Q1 and Q5 are still high pressure oil suction chamber, Q3 and Q4 are still low pressure oil-discharging cavity, at this moment high pressure oil enters new high pressure oil suction chamber from joining the oil-feed face of oil cone again, and drive rotor 2 continues to be rotated counterclockwise.

When rotor 2 rotates to Figure 16 position and continues rotation, chamber Q5 becomes low pressure oil-discharging cavity then from high pressure oil suction chamber, and at this moment Q1 is still high pressure oil suction chamber, and Q3 and Q4 are still low pressure oil-discharging cavity, and high pressure oil continues to enter new high pressure oil suction chamber, drive rotor 2 continues to be rotated counterclockwise.

When rotor 2 rotates counterclockwise Figure 13 position, the low pressure oil in oil-discharging cavity Q3 drains, and Q1 is still high pressure oil suction chamber, and Q4 and Q5 are still low pressure oil-discharging cavity, and high pressure oil is also entering new high pressure oil suction chamber, and drive rotor 2 continues to be rotated counterclockwise.

When rotor 2 rotates to Figure 14 position and continues rotation, chamber Q1 becomes low pressure oil-discharging cavity then from high pressure oil suction chamber.So go round and begin again, drive rotor 2 is constantly rotated counterclockwise.At the other end of oil hydraulic motor, 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 this aspect is made, all fall into protection scope of the present invention.

Claims

1. A multi-vane oil motor, characterized in that it includes a housing (1), a rotor (2), blades (3), a sealing strip (4) and a spacer (5), etc., and the rotor (2) is located in the center , the shell (1) is located on the outside, and the blades (3) are placed in the hollow ring at the diagonal of the shell (1), and are also located in the groove of the rotor (2), and form an angle with the rotor (2), the blades A plane of (3) is tangent to the side of the circular platform of the rotor (2), and the sealing strip (4) is located between the rotor (2) and the blade, and one side of the plane is attached to the rotor (2), and one side of the circular platform is connected to the The round table surface E1 of the blade (3) fits together, and the spacer (5) is located in the hollow ring at the opposite corner of the housing (1), just filling the housing (1), blade (3), rotor (2) and The void formed by the sealing strip (4).

2. A multi-blade oil motor according to claim 1, characterized in that, the blades (3) are quarter-circular and have the same four pieces in total, and one blade (3) consists of two Plane A1, B1, cylindrical surface C1, spherical surface D1, and two circular table surfaces E1, J1 are enclosed; among them, C1 is the radius of the cylindrical surface E3 of the hollow ring whose center is the center of the sphere O1 and whose radius is the shell (1) The same cylindrical surface, D1 is a spherical surface whose center is O1 and the radius is the same as that of rotor (2) ball table C2, E1 and J1 are circular table surfaces, and the diameters of the upper and lower bottom surfaces are straight line R1S1 and straight line M1N1, M1R1 and N1S1 respectively It is the side busbar; the two planes A1 and B1 are parallel; the distance between the two parallel planes A1 and B1 is the thickness of the blade (3), and the thickness of the blade (3) is equal to the width of the hollow ring of the shell (1);

There are eight same sealing strips (4), one of which is a round table on the E1 side, the diameters of its upper and lower bottom surfaces are straight lines R1S1 and P1Q1 respectively, P1R1 and N1S1 are its side busbars, and the K1 side is a plane. The axis of the ball center O1 is parallel to the plane, and its vertical distance is half of the thickness of the cross plate perpendicular to the rotor (2). G1 is a spherical surface whose center is equal to the radius of O1 and the center ball table C2 of the rotor (2). F1 is The center of the sphere is a spherical surface whose radius O1 is equal to the line segment O2M2 of the rotor (2), the two surfaces H1 and I1 are parallel planes, and its half-length OP1 is equal to the radius of the shell (1) cylindrical surface F3, and its width is equal to the width of the blade (3) , R1 and S1 are two slopes equal to the slope of the middle surface D3 to B3, and the width of the sealing strip (4) is equal to the thickness of the blade (3); the blade (3) and the sealing strip (4) are both axisymmetric ;

In the middle of the rotor (2) is a waist-drum-shaped ball table with two spherical crowns cut off in parallel at both ends. An orthogonal cross board is inserted symmetrically in the middle of the table. The two ends of the drum-shaped table are two identical hollow round tables, and A2 and B2 are parallel. R2 and S2 are also parallel circular planes, C2 and D2 are spherical surfaces whose center is O2, I2 and J2 are two planes perpendicular to each other, a blade (3) and two sealing strips (4) are placed vertically on In the groove between I2 and J2, it is just completely sealed. E2 and F2 are cylindrical surfaces with the same radius as the central axis passing through O2 and the radius of the cylindrical surface F3 of the shell (1). G2 and H2 are two identical hollow circular truncated parts. On the side, the upper and lower bottoms of the round platform on one side are the circular plane A2 and the circular plane R2 respectively, and the upper and lower bottoms of the circular platform on the other side are the circular plane B2 and the circular plane S2 respectively. The length of the straight line section of K2M2 is the width of the rotor (2). The sides G2 and H2 fit together with the corresponding shell (1) and the parallel planes C3 and D3 of the hollow ring, and the entire rotor (2) is not only symmetrical about the center O2 of the ball table, but also axisymmetric;

The shell (1) is a drum-shaped spherical surface with two spherical caps cut off in parallel at both ends, the thickness is equal to the width K2M2 of the rotor (2), A3 and B3 are two parallel circular planes with equal radii, and F3 is a cylindrical surface , its central axis passes through O3, the radius is equal to the radius of the left and right outer cylinders E2 and F2 of the rotor (2), the opposite corner of the cylinder of the housing (1) is a hollow ring, and the width of the ring is equal to the thickness of the blade (3) , the two side faces C3 and D3 of the hollow ring are parallel ring planes, E3 is the cylindrical surface whose central axis passes through O3, and is located on the diagonal of the housing (1), and its outer diameter is the same as the cylindrical surface of the blade (3) The outer diameters of C1 are equal and larger than the outer diameter of the cylindrical surface F3 of the shell (1). The two planes C3 and D3 parallel to the ring are fitted with the corresponding sides G2 and H2 of the two hollow circular platforms of the rotor (2). The entire shell (1) Symmetrical about the center O3 of the table;

The spacer (5) is a circular ring, and there are four identical pieces in total. One of the outer sides A4 is a cylindrical surface with a radius equal to the outer diameter of the diagonal ring E3 of the housing (1), and the inner side B4 is a radius equal to that of the rotor (2). The spherical surface of the line segment O2M2 has the upper and lower thickness equal to the width K2M2 of the cross plate orthogonal to the rotor (2). The two waists C4 and D4 are circular table tops. Be its side generatrix, pad (5) shape is axisymmetric.