CN102619568A - Shell distribution type pneumatic motor with spherical blades - Google Patents

Abstract

The invention discloses a shell distribution type pneumatic motor with spherical blades, which comprises a shell, a rotor, two blades, two sealing strips and two cushion blocks. The rotor is positioned in the center of the shell distribution type pneumatic motor, the shell is positioned on the outer portion of the shell distribution type pneumatic motor, the two blades are respectively positioned on two sides of the rotor and placed in hollow rings at opposite corners of the shell, a certain angle is formed between each blade and the rotor, the tangent of each angle is equal to the ratio of the height of the shell to the diameter of a bottom circle of the shell, the sealing strips are positioned among the rotor and the blades, one side of a plane of each sealing strip is attached to a plane of the rotor, one side of a cylindrical surface of each sealing strip is attached to a cylindrical surface E1 of the corresponding blade, and the cushion blocks are positioned in the hollow rings at the opposite corners of the shell and exactly filled in gaps formed by the blades, the rotor and the sealing strips. All sealed positions are in face seal, and the shell distribution type pneumatic motor is high in output torque, pressure, efficiency and specific power, compact in structure, easier in processing, low in cost and long in service life.

Description

The spherical blade pneumatic motor of a kind of shell distributing type

Technical field

The present invention relates to a kind of pneumatic motor, relate in particular to the spherical blade pneumatic motor of a kind of shell distributing type.

Background technique

Existing pneumatic vane motor structure is a rotor eccentricity and places in the cylinder block, blade radial or place in the rotor with rotor radius is angled, and blade throws away under the effect of spring or air pressure during work, forms Seal cage with cylinder block.This form-blade formula pneumatic motor is owing to be to lean on a Line of contact sealing between blade and the cylinder block, so sealability is relatively poor, and output torque is lower; Produce very big friction when adding rotation between blade and rotor and cylinder block; Cause the pneumatic vane motor overall wear fast, the life-span is short, and efficient is low.In addition, in order to guarantee that blade can safety pass in and out in rotor, rotor must have suitable diameter during rotation, and the volume that is bound to like this is big, and specific power is low.

Summary of the invention

The objective of the invention is the deficiency to existing technology, provide a kind of shell distributing type spherical blade pneumatic motor, specific power of the present invention is big, and all sealing part is face seal again, and not easy to wear.

In order to achieve the above object, the technological scheme that the present invention adopts is following: the spherical blade pneumatic motor of a kind of shell distributing type comprises: housing, rotor, two blades, two Stamping Steel Ribbons and two cushion blocks.Rotor is positioned at the center, and housing is positioned at the outside, and two blades lay respectively at the both sides of rotor, and be placed in the housing diagonal angle hollow ring (being guiding groove) in, with rotor at an angle, the ratio that just is cut to housing height and circular diameter at the bottom of the housing of this angle.The plane of blade and the frustum cone side of rotor are tangent; Stamping Steel Ribbon is between rotor and blade; Fit in a plane of its plane one side and rotor; Cylinder one side is then fitted with the cylinder E1 of blade, cushion block be positioned at the housing diagonal angle hollow ring, just in time fill up the vacancy that forms by blade, rotor and Stamping Steel Ribbon.

Said blade is surrounded by two plane A1, B1 and two cylinder C1, E1 and forms; Wherein, Cylinder C1 is that the center is centre of sphere O1, radius and the identical cylinder of radius of the cylinder E3 of the hollow ring of housing; Cylinder E1 is that the center is that centre of sphere O1, radius are the cylinder of O1K1, and some K1 was the vertical axis of symmetry of centre of sphere O1 and the intersection point of cylinder E1.Two plane A1 are parallel with B1, connect cylinder C1 and E1.The distance of two parallel plane A1 and B1 is a vane thickness, and vane thickness equates with the hollow ring width of housing.The length of O1K1 is the height sum of a half-sum Stamping Steel Ribbon of rotor slab-thickness.

Said Stamping Steel Ribbon upside is that a center is the cylinder that centre of sphere O1, radius equate with blade cylinder E1 radius; Downside is a plane; The perpendicular distance of centre of sphere O1 and this time side plane is the half the of rotor slab-thickness, and cylinder G1 is that the center is the cylinder that O1, radius equate with rotor cylinder P2 radius, and sphere F1 is that the centre of sphere is the sphere that O1, radius equate with housing sphere F3 radius; Plane H1 is parallel with I1, and width (being the distance of plane H1 and I1) equates with the thickness of blade.Blade and Stamping Steel Ribbon are axisymmetric.

Be one flat plate in the middle of the said rotor, G2 and H2 are two identical director circle platform part sides, be positioned at dull and stereotyped in the middle of two waist places; One of them director circle platform is gone to the bottom and is B2, and upper base is that the center is O2 radius and the identical cloudy cylndrical surface P2 of the middle G1 radius of Stamping Steel Ribbon with dull and stereotyped connecting part, and A2 is the parallel disk that radius equates with B2; I2 is parallel plate level with J2, and the E2 and the F2 centre of sphere are the big sphere in the outside about O2, between planar I 2 and J2; The distance of two parallel plane I2 and J2 is a rotor lithographic plate thickness; The length of straigh line of K2M2 is the width of rotor, and whole rotor also is an axisymmetric not only about center O 2 symmetries.

Said housing is the dolioform sphere that two spherical crowns are fallen at parallel section of two, and thickness equates that with the width K2M2 of rotor end face A3 is the parallel disk that radius equates with bottom surface B3; Sphere F3 is to be the centre of sphere with O3; The sphere that the radius of big sphere E2 in the outside and F2 equates about radius and rotor, the diagonal angle of housing sphere is a hollow ring, two side C3 of hollow ring are parallel planar circulars with D3; E3 is the cylinder of central shaft through O3; Be positioned on the diagonal of housing, two plane C3 that hollow ring is parallel and the spatial position of D3 are to decide as follows: guarantee to assemble back C3 and D3 two planes and fit respectively with corresponding rotor two frustum cone side G2 and H2, the sphere of K3G3H3 is an air inlet face; The central angle of circular arc K3H3 on the circle B3 of bottom surface is less than 90 degree, and the plane of crossing centre of sphere O3 at circular arc G3H3 place is perpendicular to end disc B3; The sphere of L3I3J3 is a deflation area, and the position of I3J3 is when rotor forwards to perpendicular to the paper position by the paper position, the position on plane, the dull and stereotyped right side of rotor.Whole housing is about billiard table center O 3 symmetries.

Said cushion block is one section annulus; Its outer side surface A4 is the cylinder that radius equates with housing hollow ring E3 external diameter; Inner side surface B4 is the sphere that radius equates with housing sphere F3 radius; Two waist C4 and D4 are the cylinders that radius equates with the radius of blade bottom surface cylinder E1, and the thickness of cushion block is identical with vane thickness.Cushion block is shaped as axisymmetric;

Pressurized gas are from the air inlet face input of the sphere K3G3H3 of housing (1), and low-pressure gas is from the deflation area output of the sphere L3I3J3 of housing (1), and the pneumatic motor output torque is to load.

The invention has the beneficial effects as follows:

1) all sealing part are face seal;

2) volume is little, and moment of torsion is big, and efficient is high;

3) specific power is big;

4) compact structure, processing is relatively easy;

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

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described further.

Fig. 1 is a blade shape schematic representation of the present invention

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a gasket structure schematic representation of the present invention;

Fig. 4 be among Fig. 3 Q1 to schematic representation;

Fig. 5 is a rotor structure schematic representation of the present invention;

Fig. 6 is the W-W sectional view of Fig. 5;

Fig. 7 is a shell construction schematic representation of the present invention;

Fig. 8 is the sectional view of housing;

Fig. 9 is the M-M sectional view of Fig. 8;

Figure 10 is an overall structure schematic representation of the present invention;

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

Figure 12 is the N-N sectional view of Figure 10;

Figure 13 is a running principle schematic representation of the present invention;

Figure 14 is the U-U sectional view of Figure 10;

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

Figure 16 is the V-V sectional view of Figure 13;

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

Among the figure: housing 1, rotor 2, blade 3, Stamping Steel Ribbon 4, cushion block 5.

Embodiment

Shown in figure 13, the spherical blade pneumatic motor of shell distributing type of the present invention comprises housing 1, rotor 2, two blades 3, two Stamping Steel Ribbons 4 and two cushion blocks 5.Rotor 2 is positioned at the center; Housing 1 is positioned at the outside, and two blades 3 lay respectively at the both sides of rotor 2, and be placed in housing 1 diagonal angle hollow ring (being guiding groove) in; With rotor 2 at an angle, the ratio that just is cut to housing 1 height and 1 end of housing circular diameter of this angle.The plane of blade 3 and the frustum cone side of rotor 2 are tangent; Stamping Steel Ribbon 4 is between rotor 2 and blade 3; Fit in a plane of its plane one side and rotor 2; Cylinder one side is then fitted with the cylinder E1 of blade 3, cushion block 5 be positioned at housing 1 diagonal angle hollow ring, just in time fill up the vacancy that forms by blade 3, rotor 2 and Stamping Steel Ribbon 4.

Illustrated in figures 1 and 2 is the shape of blade 3 of the present invention.Blade 3 is surrounded by two plane A1, B1 and two cylinder C1, E1 and forms; Wherein, Cylinder C1 is that the center is centre of sphere O1, radius and the identical cylinder of radius of the cylinder E3 of the hollow ring of housing 1; Cylinder E1 is that the center is that centre of sphere O1, radius are the cylinder of O1K1, and some K1 was the vertical axis of symmetry of centre of sphere O1 and the intersection point of cylinder E1.Two plane A1 are parallel with B1, connect cylinder C1 and E1.The distance of two parallel plane A1 and B1 is blade 3 thickness, and blade 3 thickness equate with the hollow ring width of Fig. 8 housing 1.The length of O1K1 is the height sum of a half-sum Stamping Steel Ribbon of Fig. 6 rotor 2 slab-thicknesses.

Fig. 3 and shown in Figure 4 be the shape of Stamping Steel Ribbon 4 of the present invention.As shown in Figure 4; Stamping Steel Ribbon 4 upsides are that a center is the cylinder that centre of sphere O1, radius equate with blade 3 cylinder E1 radiuses; Downside is a plane; The perpendicular distance of centre of sphere O1 and this time side plane is the half the of Fig. 6 rotor 2 slab-thicknesses, and cylinder G1 is that the center is the cylinder that O1, radius equate with Fig. 5 rotor 2 cylinder P2 radiuses, and sphere F1 is that the centre of sphere is the sphere that O1, radius equate with Fig. 8 housing 1 sphere F3 radius; Plane H1 is parallel with I1, and width (being the distance of plane H1 and I1) equates with the thickness of blade 3.Blade 3 is axisymmetric with Stamping Steel Ribbon 4.

Fig. 5 and shown in Figure 6 be the shape of rotor 2 of the present invention.Be one flat plate in the middle of the rotor 2, G2 and H2 are two identical director circle platform part sides, be positioned at dull and stereotyped in the middle of two waist places; One of them director circle platform is gone to the bottom and is B2, and upper base is that the center is O2 radius and the identical cloudy cylndrical surface P2 of Stamping Steel Ribbon 4 middle G1 radiuses with dull and stereotyped connecting part, and A2 is the parallel disk that radius equates with B2; I2 is parallel plate level with J2, and the E2 and the F2 centre of sphere are the big sphere in the outside about O2, between planar I 2 and J2; The distance of two parallel plane I2 and J2 is rotor 2 lithographic plate thickness; The length of straigh line of K2M2 is the width of rotor 2, and whole rotor 2 also is an axisymmetric not only about center O 2 symmetries.

Fig. 7, Fig. 8 and shown in Figure 9 be the shape of housing 1 of the present invention.Housing 1 is the dolioform sphere that two spherical crowns are fallen at parallel section of two, and thickness equates that with the width K2M2 of rotor 2 end face A3 is the parallel disk that radius equates with bottom surface B3; Sphere F3 is to be the centre of sphere with O3; The sphere that radius equates with the radius of big sphere E2 in rotor about 2 outsides and F2, the diagonal angle of housing 1 sphere is a hollow ring, two side C3 of hollow ring are parallel planar circulars with D3; E3 is the cylinder of central shaft through O3; Be positioned on the diagonal of housing, two plane C3 that hollow ring is parallel and the spatial position of D3 are to decide as follows: guarantee to assemble back C3 and D3 two planes and fit respectively with corresponding 2 liang of frustum cone side G2 of rotor and H2, the sphere of K3G3H3 is an air inlet face; The central angle of circular arc K3H3 on the circle B3 of bottom surface is less than 90 degree; The sphere of L3I3J3 is a deflation area, the position of I3J3 be when rotor 2 forward to by paper shown in Figure 5 position shown in figure 13 during perpendicular to the paper position, the position on plane, rotor 2 dull and stereotyped right side.Whole housing 1 is about billiard table center O 3 symmetries.

The shape of cushion block 5 has been shown among Figure 12.Cushion block 5 is one section annulus; Its outer side surface A4 is the cylinder that radius equates with housing 1 hollow ring E3 external diameter; Inner side surface B4 is the sphere that radius equates with housing 1 sphere F3 radius; Two waist C4 and D4 are the cylinders that radius equates with the radius of blade 3 bottom surface cylinder E1, and the thickness of cushion block 5 is identical with blade 3 thickness.Cushion block 5 is shaped as axisymmetric.

As shown in Figure 6, after ball-type blade pneumatic motor of the present invention assembled, the center O 1 of each parts, O2, O3 overlapped.Structure of the present invention is shown in figure 13, and rotor 2 is positioned at the center, and housing 1 is positioned at the outside; Blade 3 is positioned at the both sides of rotor 2, and be placed in housing 1 diagonal angle hollow ring (guiding groove) in, with rotor 2 at an angle; Blade 3 is tangent with the frustum cone side of rotor 2, and Stamping Steel Ribbon 4 is between rotor 2 and blade 3, and its plane one side and rotor 2 are fitted; Cylinder one side is then fitted with blade 3; Cushion block 5 be positioned at housing 1 diagonal angle hollow ring, just in time fill up by blade 3 vacancy that rotor 2 and Stamping Steel Ribbon 4 form.

Illustrated in figures 1 and 2 is the shape of blade 3 of the present invention.Blade 3 approximate half-circular, total two same, wherein a slice A1 is parallel plane with B1; Blade 3 width equate with the hollow ring width of Fig. 8 housing 1; C1 is that the center is O1 radius and the identical cylinder of housing 1 cylinder E3 radius, and D1 is that the centre of sphere is O1 radius and the identical sphere of rotor 2 billiard table C2 radiuses, and E1 is a cylinder; The E1 cylinder is a central shaft with the symmetry axis of crossing the centre of sphere, is radius with O1K1.

Fig. 3 and shown in Figure 4 be the shape of Stamping Steel Ribbon 4 of the present invention.Stamping Steel Ribbon 4 has identical two; Wherein a upside is the cylinder that a radius equates with blade 3 cylinder E1 radiuses, and downside is the plane, and the perpendicular distance on centre of sphere O1 and this plane is the half the of Fig. 5 rotor 2 slab-thicknesses; G1 is that the center is the cylinder that the O1 radius equates with Fig. 5 rotor 2 cylinder P2 radiuses; F1 is that the centre of sphere is the sphere that the O1 radius equates with Fig. 8 housing 1 sphere F3 radius, and two faces of H1 and I1 are parallel planes, and width equates with blade 3 width.Blade 3 is axisymmetric with Stamping Steel Ribbon 4.

Fig. 5 and shown in Figure 6 be the shape of rotor 2 of the present invention.Be one flat plate in the middle of the rotor 2; Two waist places are two identical round platforms in the middle of dull and stereotyped, and one of them round platform B2 that goes to the bottom is to be the disc of diameter with K2L2, and upper base is that the center is O2 radius and the identical cloudy cylinder P2 of Stamping Steel Ribbon 4 centre G1 radiuses with dull and stereotyped connecting part; G2 and H2 are two identical frustum cone sides; The spatial position of two frustum cone side G2 and H2 is to decide as follows: guarantee to assemble back two frustum cone side G2 and H2 and fit with corresponding housing 1 annulus parallel plane C3 and D3, A2 is parallel disk with B2, and I2 is parallel plate level with J2; E2 is that the centre of sphere is O2 radius and the identical sphere of housing 1 sphere F3 radius with F2; Sphere E2 and F2 are between planar I 2 and J2, and whole rotor 2 also is an axisymmetric not only about billiard table center O 2 symmetries.

Fig. 7, Fig. 8 and shown in Figure 9 be the shape of housing 1 of the present invention.Housing 1 is the dolioform sphere that two spherical crowns are fallen at parallel section of two, and thickness equates that with the width K2M2 of rotor 2 A3 is parallel disk with B3; Sphere F3 is the centre of sphere with O3; Radius equates that with the radius of rotor about 2 outside E2 and F2 sphere the diagonal angle of housing 1 sphere is a hollow ring, and the annulus width equates with blade 3 thickness; C3 is parallel disk with D3; E3 is that the center is the cylinder of O3, and its external diameter equates with the outer warp of blade 3 cylinder C1, and greater than the external diameter of housing 1 sphere F3; The spatial position on C3 that annulus is parallel and D3 two planes is to decide as follows: guarantee to assemble back C3 and D3 two planes and fit with corresponding 2 liang of frustum cone side G2 of rotor and H2; The sphere of L3I3J3 is an air inlet face, and the position of I3J3 is the position on plane, rotor flat board left side when rotor forwards position shown in Figure 13 to, and position shown in Figure 13 is a rotor by initial position Figure 10 (dull and stereotyped upper and lower surface I2 of Fig. 6 rotor and J2 are horizontal) 90 positions when spending that turn clockwise.The sphere of K3G3H3 is a deflation area, and the central angle of circular arc K3H3 on end disc B3 is less than 90 degree, and the plane of crossing centre of sphere O3 at circular arc G3H3 place is perpendicular to end disc B3.Whole housing 1 is about billiard table center O 3 symmetries.

Among Figure 12 5 be depicted as cushion block 5 of the present invention shape.Cushion block 5 is one section annulus; Have identical two; Wherein an outside A4 is the cylinder that radius equates with housing 1 diagonal angle annulus E3 external diameter; Interior survey B4 is the sphere that radius equates with housing 1 sphere F3 radius, and thickness equates that with rotor 2 slab-thicknesses two waist C4 and D4 are the cylinders that radius equates with the radius of blade 3 bottom surface cylinder E1.Cushion block 5 is shaped as axisymmetric.

Operation working principle of the present invention is following:

Like Figure 15, at an end of blade pneumatic motor, rotor 2, blade 3, Stamping Steel Ribbon 4 and housing 1 are divided into three independently Seal cage Q1, Q2 and Q3 separately with air cavity.At an end of rotor 2, when rotor 2 was in air inlet initial position (like Figure 10 or 6a), high pressure air got into air cavity Q1 from the air inlet face of housing; Like Figure 15, at this moment air cavity Q3 has been full of high pressure air, and air cavity Q2 then is a low pressure gas; Three pressure reduction that air cavity forms; On rotor, produce moment of torsion, rotor is rotated counterclockwise, promote blade then and be rotated counterclockwise.When rotor was rotated counterclockwise, the low pressure gas in the air cavity Q2 was discharged through the deflation area of housing.When high pressure air continues when the air inlet face of housing gets into air cavity Q1, rotor continues to be rotated counterclockwise.When rotor forwards Figure 16 position to, and when continuing to be rotated counterclockwise, air cavity Q3 becomes the low pressure exhaust chamber then from the high pressure admission chamber, and high pressure air then continues to get into air cavity Q1, and air cavity Q2 still is the low pressure exhaust chamber.The moment of torsion that draught head produces continues to promote rotor and is rotated counterclockwise, like Figure 17.At this moment Q1 is the high pressure admission chamber, and Q2 and Q3 are the low pressure exhaust chamber.When rotor rotated counterclockwise Figure 14 position, the low pressure gas in the exhaust cavity Q2 drained, and Q1 still is the high pressure admission chamber, and Q3 still is the low pressure exhaust chamber, and at this moment high pressure air gets into new high pressure admission chamber from the air inlet face of housing again, promoted rotor and continued to be rotated counterclockwise.When rotor rotated to Figure 16 position, air cavity Q1 became the low pressure exhaust chamber then from the high pressure admission chamber, and at this moment Q3 still is the low pressure exhaust chamber, and high pressure air continues to get into new high pressure admission chamber, promoted rotor and continued to be rotated counterclockwise.So go round and begin again, promote rotor and constantly be rotated counterclockwise.At the other end of pneumatic motor, situation is also identical with this end.

The foregoing description 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 to make this aspect all fall into protection scope of the present invention.

Claims (2)

1. the spherical blade pneumatic motor of shell distributing type is characterized in that it comprises housing (1), rotor (2), two blades (3), two Stamping Steel Ribbons (4) and two cushion blocks (5) etc.; Rotor (2) is positioned at the center; Housing (1) is positioned at the outside; Two blades (3) lay respectively at the both sides of rotor (2); And be placed in housing (1) diagonal angle hollow ring (being guiding groove) in, with rotor (2) at an angle, the ratio that just is cut to housing (1) height and housing (1) end circular diameter of this angle; The plane of blade (3) and the frustum cone side of rotor (2) are tangent; Stamping Steel Ribbon (4) is positioned between rotor (2) and the blade (3); Fit in a plane of its plane one side and rotor (2); Cylinder one side is then fitted with the cylinder E1 of blade (3), cushion block (5) be positioned at housing (1) diagonal angle hollow ring, just in time fill up the vacancy that forms by blade (3), rotor (2) and Stamping Steel Ribbon (4).

2. according to the spherical blade pneumatic motor of the said shell distributing type of claim 1; It is characterized in that; Said blade (3) is surrounded by two plane A1, B1 and two cylinder C1, E1 and forms, and wherein, cylinder C1 is that the center is centre of sphere O1, radius and the identical cylinder of radius of the cylinder E3 of the hollow ring of housing (1); Cylinder E1 is that the center is that centre of sphere O1, radius are the cylinder of O1K1, and some K1 was the vertical axis of symmetry of centre of sphere O1 and the intersection point of cylinder E1; Two plane A1 are parallel with B1, connect cylinder C1 and E1; The distance of two parallel plane A1 and B1 is blade (a 3) thickness, and blade (3) thickness equates with the hollow ring width of housing (1); The length of O1K1 is the height sum of a half-sum Stamping Steel Ribbon of rotor (2) slab-thickness;

Said Stamping Steel Ribbon (4) upside is that a center is the cylinder that centre of sphere O1, radius equate with blade (3) cylinder E1 radius; Downside is a plane; The perpendicular distance of centre of sphere O1 and this time side plane is the half the of rotor (2) slab-thickness; Cylinder G1 is that the center is the cylinder that O1, radius equate with rotor (2) cylinder P2 radius; Sphere F1 is that the centre of sphere is the sphere that O1, radius equate with housing (1) sphere F3 radius, and plane H1 is parallel with I1, and width (being the distance of plane H1 and I1) equates with the thickness of blade (3); Blade (3) and Stamping Steel Ribbon (4) are axisymmetric;

Said rotor is an one flat plate in the middle of (2), and G2 and H2 are two identical director circle platform part sides, be positioned at dull and stereotyped in the middle of two waist places; One of them director circle platform is gone to the bottom and is B2, and upper base is that the center is O2 radius and the identical cloudy cylndrical surface P2 of Stamping Steel Ribbon 4 middle G1 radiuses with dull and stereotyped connecting part, and A2 is the parallel disk that radius equates with B2; I2 is parallel plate level with J2, and the E2 and the F2 centre of sphere are the big sphere in the outside about O2, between planar I 2 and J2; The distance of two parallel plane I2 and J2 is rotor (a 2) lithographic plate thickness; The length of straigh line of K2M2 is the width of rotor (2), and whole rotor (2) also is an axisymmetric not only about center O 2 symmetries;

Said housing (1) is the dolioform sphere that two spherical crowns are fallen at parallel section of two; Thickness equates with the width K2M2 of rotor (2); End face A3 and bottom surface B3 are the parallel disks that radius equates, sphere F3 is to be the centre of sphere with O3, the outside sphere that equates of the radius of sphere E2 and F2 greatly about radius and rotor (2); The diagonal angle of housing (1) sphere is a hollow ring; Two side C3 of hollow ring are parallel planar circulars with D3, and E3 is the cylinder of central shaft through O3, is positioned on the diagonal of housing; Two plane C3 that hollow ring is parallel and the spatial position of D3 are to decide as follows: guarantee to assemble back C3 and D3 two planes and fit respectively with corresponding rotor (2) two frustum cone side G2 and H2; The sphere of K3G3H3 is an air inlet face, and the central angle of circular arc K3H3 on the circle B3 of bottom surface is less than 90 degree, and the plane of crossing centre of sphere O3 at circular arc G3H3 place is perpendicular to end disc B3; The sphere of L3I3J3 is a deflation area, and the position of I3J3 is when rotor (2) forwards to perpendicular to the paper position by the paper position, the position on plane, the dull and stereotyped right side of rotor (2); Whole housing (1) is about billiard table center O 3 symmetries;

Said cushion block (5) is one section annulus; Its outer side surface A4 is the cylinder that radius equates with housing (1) hollow ring E3 external diameter; Inner side surface B4 is the sphere that radius equates with housing (1) sphere F3 radius; Two waist C4 and D4 are the cylinders that radius equates with the radius of blade (3) bottom surface cylinder E1, and the thickness of cushion block (5) is identical with blade (3) thickness; Cushion block (5) is shaped as axisymmetric;

Pressurized gas are from the air inlet face input of the sphere K3G3H3 of housing (1), and low-pressure gas is from the deflation area output of the sphere L3I3J3 of housing (1), and the pneumatic motor output torque is to load.

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