CN103883356A

CN103883356A - Blade pneumatic motor

Info

Publication number: CN103883356A
Application number: CN201310690312.5A
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: 2014-06-25
Anticipated expiration: 2033-12-16
Also published as: CN103883356B

Abstract

The invention discloses a high-performance blade pneumatic motor which comprises a shell, a rotor, blades, sealing strips, an air distribution cone and a cushion block, wherein the rotor is located in the center, the shell is located outside, the air distribution cone is located in hollow circular truncated cone surfaces at two ends of the rotor, the blades are installed in a hollow ring at opposite angles of the shell, and are also located in a groove of the rotor, an angle is formed between each blade and the rotor, one plane of each blade is attached to the side surface in the shape of a circular truncated cone of an oil distribution cone, the sealing strips are located between the rotor and the blades, one planar side of each sealing strip clings to the rotor, one side of the circular truncated cone surface of each sealing strip clings to a circular truncated cone surface E1 of the corresponding blade, and the cushion block is located in the hollow ring at the opposite angles of the shell, and just fills a gap formed by the shell, the blades, the rotor and the sealing strips. All sealing parts are of a surface sealing manner, and the high-performance blade pneumatic motor is small in size, large in torque, high in efficiency, large in specific power, compact in structure, relatively easy to process, low in cost, and long in service life.

Description

A kind of blade pneumatic motor

Technical field

The present invention relates to pneumatic motor, relate in particular to a kind of high-performance blade pneumatic motor.

Background technique

Existing pneumatic vane motor structure is a rotor eccentricity and is placed in cylinder block, blade radial or be placed in rotor with rotor radius is angled, and when work, blade throws away under the effect of spring or air pressure, forms Seal cage with cylinder block.This form pneumatic vane motor is owing to being that therefore sealability is poor by a Line of contact sealing between blade and cylinder block, and output torque is lower, while adding rotation, between blade and rotor and cylinder block, produce very large friction, cause pneumatic vane motor overall wear fast, the life-span is short, and efficiency is low.In addition, when 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 air pressure 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 one, can to realize specific power large, and output torque is large, and output torque pulsation is again little, and all sealings place are again face sealing, and nonabradable high-performance blade pneumatic motor.

In order to achieve the above object, the technical solution used in the present invention is as follows: high-performance blade pneumatic motor, comprise housing, rotor, blade, Stamping Steel Ribbon, distribution cone and cushion block, rotor is positioned at center, housing is positioned at outside, distribution cone is positioned at two ends of rotor open circles table top, blade be placed in housing diagonal angle hollow ring in, 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 high-performance blade pneumatic 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, the cylinder that C1Shi center is centre of sphere O1, radius is 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 O1, its perpendicular distance is the half of the orthogonal four-bladed vane thickness of slab of rotor, 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 F4 radius, R1 and S1 are the inclined-planes that two gradients equate for the gradient of B4 with middle D4, 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, insert an orthogonal four-bladed vane as symmetry, 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 central shaft is crossed the cylinder that O2 radius is identical with housing cylinder 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 disk B2 and the disc take straight line K2L2 as 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,

Described distribution cone 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, this plane can to bore the bus of frustum cone side parallel with distribution, can be not parallel with the bus of distribution cone frustum cone side yet, the width of plane C3 the widest position is not more than the orthogonal four-bladed vane thickness of slab of rotor, plane C3 and corresponding 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, F4 is cylinder, its central shaft is crossed O4, 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 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, the plane C3 of the C4 that annulus is parallel and D4 two planes and a distribution cone flank face and the laminating of the respective planes of another distribution cone flank face, whole housing is about billiard table center O 4 symmetries,

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 equals Fig. 4 rotor line segment O2M2, its upper and lower thickness four-bladed vane width K2M2 orthogonal with rotor equate, two waist C5 and D5 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 distribution cone-shaped schematic diagram of the present invention;

Fig. 7 is that the P of Fig. 6 is to schematic diagram

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

Fig. 9 is the plan view of housing of the present invention;

Figure 10 is the M-M generalized section of Fig. 9;

Figure 11 is overall structure schematic diagram of the present invention;

Figure 12 is that the K of Figure 11 is to schematic diagram;

Figure 13 is the N-N generalized section of Figure 11;

Figure 14 is running principle schematic diagram of the present invention;

Figure 15 is the U-U generalized section of Figure 11;

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

Figure 17 is the V-V generalized section of Figure 14;

Figure 18 is working procedure principle schematic of the present invention.

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

Embodiment

Structure of the present invention as shown in figure 14, rotor 2 is positioned at center, housing 1 is positioned at outside, distribution cone 5 is 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 are fitted, 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.

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, the cylinder that C1Shi center is centre of sphere O1, radius is 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. 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. 9 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 the half of the orthogonal four-bladed vane thickness of slab of Fig. 5 rotor 2, 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. 9 housing 1 cylinder F4 radius, the inclined-plane that R1 and S1 are two gradients with in Fig. 9, face D4 equates for the gradient of B4, the width (being the distance of plane H1 and I1) of Stamping Steel Ribbon 4 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, insert an orthogonal four-bladed vane as symmetry, 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 central shaft is crossed the cylinder that O2 radius is identical with housing 1 cylinder 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 disk B2 and the disc take straight line K2L2 as 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. 6 and the shape that Figure 7 shows that distribution cone 5 of the present invention.Distribution 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 to bore the bus of 5 frustum cone sides parallel with distribution, can be not yet to bore the bus of 5 frustum cone sides parallel with distribution, the width of plane C3 the widest position is not more than the orthogonal four-bladed vane thickness of slab of rotor 2, 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 deflation area, the round table surface of point D3 to E3 is 135 degree, the round table surface of point F3 to G3 is air inlet face, the round table surface of F3 to G3 is less than 135 degree.

Fig. 8, Fig. 9 and Figure 10 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, F4 is cylinder, its central shaft is crossed O4, 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 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 a distribution and bore the plane C3 of 5 sides and another distribution and bore the respective planes of 5 sides and fit.Whole housing 1 is about billiard table center O 4 symmetries.

Figure 13 shows that 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 equals Fig. 4 rotor 2 line segment O2M2, its upper and lower thickness four-bladed vane width K2M2 orthogonal with rotor 2 equate, two waist C5 and D5 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 6 is shaped as axisymmetric.

Operation working principle of the present invention is as follows:

As shown in figure 16, in one end of pneumatic motor, air cavity is divided into five independently Seal cage Q1, Q2, Q3, Q4 and Q5 separately by rotor 2, blade 3, Stamping Steel Ribbon 4, distribution cone 5 and housing 1.

In one end of rotor 2, when rotor 2 is when air inlet initial position (as Figure 15), high pressure air enters air cavity Q1 from the air inlet face of distribution cone, as Figure 16, at this moment air cavity Q4 and Q5 have been full of high pressure air, and air cavity Q2 and Q3 are low pressure gas, five pressure reduction that air cavity forms, on rotor 2, produce moment of torsion, rotor 2 is rotated counterclockwise, then promote blade 3 and be rotated counterclockwise.In the time that rotor 2 is rotated counterclockwise, the low pressure gas in air cavity Q2 and Q3 is bored 5 deflation area discharge by distribution.In the time that high pressure air continues to enter air cavity Q1, Q4 and Q5 from the air inlet face of distribution cone 5, rotor 2 continues to be rotated counterclockwise.

When rotor 2 forwards Figure 16 position to, and while continuing to be rotated counterclockwise, air cavity Q4 becomes low pressure exhaust chamber then from high pressure admission chamber, and high pressure air continues to enter air cavity Q1 and Q5, and air cavity Q2 and Q3 are still low pressure exhaust chamber.The moment of torsion that draught head produces continues drive rotor 2 and is rotated counterclockwise, in the time that rotor 2 rotates counterclockwise Figure 17 position, low pressure gas in exhaust cavity Q2 drains, and Q1 and Q5 are still high pressure admission chamber, Q3 and Q4 are still low pressure exhaust chamber, at this moment high pressure air enters new high pressure admission chamber from the air inlet face of distribution cone 5 again, and drive rotor 2 continues to be rotated counterclockwise.

In the time that rotor 2 rotates to Figure 18 position and continues rotation, chamber Q5 becomes low pressure exhaust chamber then from high pressure admission chamber, and at this moment Q1 is still high pressure admission chamber, and Q3 and Q4 are still low pressure exhaust chamber, and high pressure air continues to enter new high pressure admission chamber, drive rotor 2 continues to be rotated counterclockwise.

In the time that rotor 2 rotates counterclockwise Figure 15 position, the low pressure gas in exhaust cavity Q3 drains, and Q1 is still high pressure admission chamber, and Q4 and Q5 are still low pressure exhaust chamber, and high pressure air is also entering new high pressure admission chamber, and drive rotor 2 continues to be rotated counterclockwise.

In the time that rotor 2 rotates to Figure 16 position and continues rotation, chamber Q1 becomes low pressure exhaust chamber then from high pressure admission chamber.So go round and begin again, drive rotor 2 is constantly rotated counterclockwise.At the other end of pneumatic 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. high-performance blade pneumatic motor, it is characterized in that, comprise housing (1), rotor (2), blade (3), Stamping Steel Ribbon (4), distribution cone (5) and cushion block (6) etc., rotor (2) is positioned at center, housing (1) is positioned at outside, distribution cone (5) is positioned at rotor (2) two ends open circles table top, blade (3) be placed in housing (1) diagonal angle hollow ring 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 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. high-performance blade pneumatic motor according to claim 1, it is characterized in that, described blade (3) is 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, the cylinder that C1Shi center is centre of sphere O1, radius is 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 O1, its perpendicular distance is the half of the orthogonal four-bladed vane thickness of slab of rotor (2), 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 equals rotor (2) line segment O2M2, two faces of H1 and I1 are parallel planes, its half long OP1 equates with housing (1) cylinder F4 radius, R1 and S1 are the inclined-planes that two gradients equate for the gradient of B4 with middle D4, 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, insert an orthogonal four-bladed vane as symmetry, 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 central shaft is crossed the cylinder that O2 radius is identical with housing (1) cylinder 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 disk B2 and the disc take straight line K2L2 as 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,

Described distribution cone (5) is 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, it is parallel that this plane can be bored with distribution the bus of (5) frustum cone side, can be not parallel with the bus of distribution cone (5) frustum cone side yet, the width of plane C3 the widest position is not more than the orthogonal four-bladed vane thickness of slab of rotor (2), plane C3 and corresponding 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, F4 is cylinder, its central shaft is crossed O4, radius equates with the radius of rotor (2) left and right outside E2 and F2 cylinder, the diagonal angle of housing (1) cylinder 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 respective planes laminating of the plane C3 of the C4 that annulus is parallel and D4 two planes and distribution cone (5) side and another distribution cone (5) side, whole housing (1) is about billiard table center O 4 symmetries,

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 equals Fig. 4 rotor (2) line segment O2M2, its upper and lower thickness four-bladed vane width K2M2 orthogonal with rotor (2) equate, two waist C5 and D5 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 (6) is shaped as axisymmetric.