CN103883356B

CN103883356B - Blade pneumatic motor

Info

Publication number: CN103883356B
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: 2017-02-22
Anticipated expiration: 2033-12-16
Also published as: CN103883356A

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 air motor, more particularly, to a kind of high-performance blade air motor.

Background technology

Existing blade pneumatic motor structure is a rotor eccentricity and is placed in cylinder body, blade radial or with rotor half Footpath is angled to be placed in rotor, and during work, blade throws away in the presence of spring or air pressure, forms annular seal space with cylinder block. This form pneumatic vane motor is due to being by a contact linear sealing, therefore sealing property relatively between blade and cylinder block Difference, output torque is relatively low, adds and produces very big friction during rotation between blade and rotor and cylinder block, causes pneumatic vane motor Overall wear is fast, short life, and efficiency is low.In addition, safety can pass in and out in rotor to ensure blade during rotation, rotor must have Suitable diameter, so certainly will volume big, specific power low although there being Double-blade type air pressure motor, but due to only having two panels blade, Output torque pulsation is larger, and output torque also owes big.

Content of the invention

It is an object of the invention to provide one kind had both enabled, and specific power is big, output torque is big, and output torque pulsation is again little, entirely It is face seal at portion's sealing again, and nonabradable high-performance blade air motor.

In order to achieve the above object, the technical solution used in the present invention is as follows：High-performance blade air motor, including shell Body, rotor, blade, sealing strip, distribution cone and cushion block, rotor is located at center, and housing is externally-located, and distribution cone is located at two ends of rotor In open circles table top, blade be placed in housing diagonal hollow ring in, also be located in the groove of rotor simultaneously, and become with rotor One angle, a plane of blade is fitted with the frustum cone side joining oil cone, and sealing strip is located between rotor and blade, its Plane side is fitted with rotor, is then fitted with round table surface E1 of blade in round table surface side, and cushion block is located at the diagonal open circles of housing In ring, just fill up the vacancy being formed by housing, blade, rotor and sealing strip.

In above-mentioned high-performance blade air motor, described blade is that a quarter is circular, total identical four, its In a piece of blade enclosed and formed by two planes A1, B1 and cylinder C1, sphere D1 and two round table surface E1, J1；Wherein, C1 is center For the radius identical cylinder of the cylinder E4 of the hollow ring of centre of sphere O1, radius and housing, D1 is the centre of sphere is O1 radius and rotor Billiard table C2 radius identical sphere, E1 and J1 is round table surface, and the diameter of its upper bottom surface and bottom surface is straight line R1S1 and straight respectively Line M1N1, M1R1 and N1S1 are then its side buses；Two planes A1 are parallel with B1；The distance of two parallel plane A1 and B1 is leaf The thickness of piece, vane thickness is equal with the hollow ring width of housing；

Described sealing strip has identical eight, and wherein one E1 side is round table surface, the diameter of its upper bottom surface and bottom surface It is straight line R1S1 and P1Q1 respectively, P1R1 and N1S1 is then its side bus, and K1 side is plane, the axis crossing centre of sphere O1 is put down with this Face is parallel, and its vertical dimension is the half of the orthogonal four-bladed vane thickness of slab of rotor, and G1 is the centre of sphere is O1 radius and rotor center billiard table The equal sphere of C2 radius, F1 is the sphere that the centre of sphere is O1 radius is equal to rotor line segment O2M2, and two faces of H1 with I1 are parallel Plane, its half long OP1 is equal with housing cylinder F4 radius, R1 and S1 is that two gradients are equal for the gradient of B4 with middle face D4 Inclined-plane, the width of sealing strip is equal with vane thickness；Blade and sealing strip are axial symmetry；

It is the parallel dolioform billiard table cutting out two spherical crowns in two in the middle of described rotor, such as symmetrical insertion one in the middle of billiard table Orthogonal four-bladed vane, A2 with B2 is parallel disk, C2 and D2 is the sphere that the centre of sphere is O2, I2 and J2 is orthogonal two Plane, a blade and two sealing strip arranged orthogonal are in the groove between I2 and J2, just completely closely sealed, during E2 and F2 is Heart axle crosses O2 radius and housing cylinder F4 radius identical cylinder, G2 and H2 is two identical hollow round table surface, wherein Upper and lower two bottoms of one hollow round table are disk B2 and the disc with straight line K2L2 as diameter respectively, the length of straigh line of K2M2 For the width of rotor, whole rotor only about billiard table center O2 symmetrically, is not also axial symmetry；

Described distribution cone is a round platform, total identical two, and the radius of upper and lower two bottom A3 and B3 of one of round platform divides Other and upper and lower two bottoms of rotor hollow round table side G2 and H2 radius is equal, and height is also with rotor hollow round table side G2's and H2 Highly equal, one side is plane C3 cut by a plane phase, and this plane can be parallel with the bus that frustum cone side is bored in distribution, Can not be parallel with the bus that frustum cone side is bored in distribution, the width of plane C3 the widest part is not more than the orthogonal four-bladed vane plate of rotor Thickness, plane C3 and corresponding housing annulus parallel plane C4 and D4 fit；

Described housing is the parallel dolioform sphere cutting out two spherical crowns in two, and thickness is equal with the width K2M2 of rotor, A4 with B4 is the equal parallel disk of two radiuses, and F4 is cylinder, and central shaft crosses O4, outside E2 about radius and rotor Equal with the radius of F2 cylinder, housing cylinder is diagonally a hollow ring, and annular width is equal with vane thickness, hollow ring Two side C4 with D4 be parallel circular planes, E4 is the cylinder by O4 for the central shaft, on the diagonal of housing, its External diameter is equal with the external diameter of blade cylinder C1, and the external diameter more than housing sphere F4, parallel C4 and D4 of annulus two plane and Plane C3 of side is bored in distribution and the respective planes laminating of side is bored in another distribution, and whole housing is symmetrical with regard to billiard table center O4；

Cushion block is one section of annulus, total identical four, wherein one outside A5 be radius with housing diagonal annulus E4 outside The equal cylinder in footpath, inner side B5 is the sphere that radius is equal to Fig. 4 rotor line segment O2M2, its upper and lower thickness cross orthogonal with rotor Width K2M2 is equal for plate, and two waist C5 and D5 are round table surface, and the diameter of this round table surface upper bottom surface and bottom surface is straight line respectively P1Q1 and M1N1, M1P1 are then its side buses, and cushion block is shaped as axial symmetry.

Present invention has the advantage that：

1）It is face seal at all sealings；

2）Small volume, moment of torsion is big, efficiency high；

3）Specific power is big；

4）Compact conformation, processing is relatively easy；

5) cost is relatively low, life-span length.

Brief description

The invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is blade and the sealing strip schematic shapes of the present invention；

Fig. 2 is the left view of Fig. 1；

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

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

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

Fig. 6 is the distribution cone-shaped schematic diagram of the present invention；

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

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

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

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

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

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

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

Figure 14 is the operation logic schematic diagram of the present invention；

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

Figure 16 is the work process principle schematic of the present invention；

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

Figure 18 is the work process principle schematic of the present invention.

In figure：1. housing, 2. rotor, 3. blade, 4. sealing strip, 5. distribution cone, 6. cushion block.

Specific embodiment

As shown in figure 14, rotor 2 is located at center to the structure of the present invention, and housing 1 is externally-located, and distribution cone 5 is located at 2 liang of rotor End open circles table top in, blade 3 be placed in housing 1 diagonal hollow ring（Gathering sill）Interior, it also is located at the groove of rotor 2 simultaneously Interior, and with rotor 2 at an angle, a plane of blade 3 is fitted with the frustum cone side joining oil cone 5, sealing strip 4 is located at and turns Between son 2 and blade 3, its plane side is fitted with rotor 2, is then fitted with round table surface E1 of blade 3 in round table surface side, cushion block 6 In the diagonal hollow ring of housing 1, just fill up the vacancy being formed by housing 1, blade 3, rotor 2 and sealing strip 4.

Fig. 1 and Fig. 3 show the blade 3 of the present invention and the shape of sealing strip 4.Blade 3 is that a quarter is circular or approximate A quarter is circular, total identical four, and wherein a piece of blade 3 is by two planes A1, B1 and cylinder C1, sphere D1 and two circles Table top E1, J1 enclose and form；Wherein, C1 be center be centre of sphere O1, the radius phase of radius and the cylinder E4 of the hollow ring of housing 1 Same cylinder, D1 is the centre of sphere is O1 radius and Fig. 5 rotor 2 billiard table C2 radius identical sphere, E1 and J1 is round table surface, bottom thereon The diameter of face and bottom surface is straight line R1S1 and straight line M1N1 respectively, M1R1 and N1S1 is then its side bus；Two planes A1 Parallel with B1；The distance of two parallel plane A1 and B1 is the thickness of blade 3, the open circles ring width of blade 3 thickness and Fig. 9 housing 1 Degree is equal.

Sealing strip 4 has identical eight, and wherein one E1 side is round table surface, and the diameter of its upper bottom surface and bottom surface divides It is not straight line R1S1 and P1Q1, P1R1 and N1S1 is then its side bus, and K1 side is plane, cross the axis of centre of sphere O1（As Fig. 1 Shown）Parallel with this plane, its vertical dimension is the half of the orthogonal four-bladed vane thickness of slab of Fig. 5 rotor 2, and G1 is the centre of sphere is O1 radius The sphere equal with Fig. 5 rotor 2 center billiard table C2 radius, F1 is the ball that the centre of sphere is O1 radius is equal to Fig. 4 rotor 2 line segment O2M2 Face, two faces of H1 with I1 are parallel planes, and its half long OP1 is equal with Fig. 9 housing 1 cylinder F4 radius, R1 and S1 is two gradients With face D4 in Fig. 9 for the equal inclined-plane of the gradient of B4, the width of sealing strip 4（The i.e. distance of plane H1 and I1）Thick with blade 3 Degree is equal；Blade 3 and sealing strip 4 are axial symmetry.

Fig. 4 and Fig. 5 show the shape of the rotor 2 of the present invention.It is the parallel waist cutting out two spherical crowns in two in the middle of rotor 2 Cydariform billiard table, such as symmetrical insertion one orthogonal four-bladed vane in the middle of billiard table, A2 with B2 is parallel disk, C2 and D2 is the centre of sphere Sphere for O2, I2 and J2 is orthogonal two planes, by the whole figure of Fig. 1, i.e. a blade 3 and two sealing strips 4 Arranged orthogonal is in the groove between I2 and J2, just completely closely sealed, E2 and F2 is that central shaft crosses O2 radius and housing 1 cylinder F4 Radius identical cylinder, G2 and H2 is two identical hollow round table surface, and upper and lower two bottoms of one of hollow round table are respectively It is disk B2 and the disc with straight line K2L2 as diameter, the length of straigh line of K2M2 is the width of rotor 2, and whole rotor 2 is not Symmetrical only about billiard table center O2, it is also axial symmetry.

Fig. 6 and Fig. 7 show the shape of the distribution cone 5 of the present invention.Distribution cone 5 is a round platform, total identical two, its In upper and lower two bottom A3 and B3 of round platform the radius radius phase with upper and lower two bottoms of rotor 2 hollow round table side G2 and H2 respectively Deng, height is also equal with the height of rotor 2 hollow round table side G2 and H2, and one side is plane C3 cut by a plane phase, this Plane can with distribution bore 5 frustum cone sides bus parallel it is also possible to not with distribution bore 5 frustum cone sides bus parallel, plane The width of C3 the widest part is not more than the orthogonal four-bladed vane thickness of slab of rotor 2, and the locus of plane C3 are with depending on following：Ensure assembling Good back plane C3 and corresponding housing 1 annulus parallel plane C4 and D4 fits, and the round table surface of point D3 to E3 is deflation area, point D3 Round table surface to E3 is 135 degree, and the round table surface of point F3 to G3 is air inlet face, and the round table surface of F3 to G3 is less than 135 degree.

Fig. 8, Fig. 9 and Figure 10 show the shape of the housing 1 of the present invention.Housing 1 is that two is parallel cuts out two spherical crowns Dolioform sphere, thickness is equal with the width K2M2 of rotor 2, A4 with B4 is the equal parallel disk of two radiuses, and F4 is Cylinder, central shaft crosses O4, and radius is equal with the radius of rotor 2 about outside E2 and F2 cylinder, and housing 1 cylinder is diagonally one Hollow ring, annular width is equal with blade 3 thickness, and two side C4 with D4 of hollow ring are parallel circular planes, E4 It is the cylinder by O4 for the central shaft, on the diagonal of housing 1, its external diameter is equal with the external diameter of blade 3 cylinder C1, and is more than The external diameter of housing 1 sphere F4, the locus of parallel C4 and D4 of annulus two plane are with depending on following：Ensure assemble rear C4 and The respective planes of plane C3 and another distribution cone 5 sides that D4 two plane bores 5 sides with a distribution are fitted.Whole housing 1 with regard to O4 is symmetrical at billiard table center.

Figure 13 show the shape of the cushion block 6 of the present invention.Cushion block 6 is one section of annulus, total identical four, wherein one Outside A5 is the radius cylinder equal with the diagonal annulus E4 external diameter of housing 1, and interior survey B5 is that radius is equal to Fig. 4 rotor 2 line segment O2M2 Sphere, the four-bladed vane width K2M2 orthogonal with rotor 2 is equal for its upper and lower thickness, and two waist C5 and D5 are round table surface, this round platform The diameter of face upper bottom surface and bottom surface is straight line P1Q1 and M1N1 respectively（As shown in Figure 1）, M1P1 is then its side bus, cushion block 6 are shaped as axial symmetry.

The operation operation principle of the present invention is as follows：

As shown in figure 16, in one end of air motor, rotor 2, blade 3, sealing strip 4, distribution cone 5 and housing 1 are by air cavity It is divided into five each independent annular seal space Q1, Q2, Q3, Q4 and Q5.

In one end of rotor 2, when rotor 2 is in air inlet starting position（As Figure 15）When, the air inlet that high pressure gas are bored from distribution Face enters air cavity Q1, such as Figure 16, and at this moment air cavity Q4 and Q5 has been filled with high pressure gas, and air cavity Q2 and Q3 is then low pressure gas, and five The pressure reduction that individual air cavity is formed, produces moment of torsion on rotor 2, makes rotor 2 rotate counterclockwise, then promotes blade 3 rotate counterclockwise. When rotor 2 rotate counterclockwise, the low pressure gas in air cavity Q2 and Q3 are discharged by the deflation area of distribution cone 5.When high pressure gas continue When the air inlet face of distribution cone 5 enters air cavity Q1, Q4 and Q5, rotor 2 continues rotate counterclockwise.

When rotor 2 goes to Figure 16 position, and when continuing rotate counterclockwise, air cavity Q4 becomes low pressure then from high pressure admission chamber Discharge chamber, and high pressure gas then go successively to air cavity Q1 and Q5, air cavity Q2 and Q3 is still low pressure exhaust chamber.The moment of torsion that draught head produces Continue to press on rotor 2 rotate counterclockwise, when rotor 2 rotates counterclockwise Figure 17 position, the low pressure gas in discharge chamber Q2 drain, and Q1 and Q5 is still high pressure admission chamber, Q3 and Q4 is still low pressure exhaust chamber, and at this moment high pressure gas are again new from the air inlet face entrance of distribution cone 5 High pressure admission chamber, drive rotor 2 continue rotate counterclockwise.

When rotor 2 rotates to Figure 18 position and continues rotation, chamber Q5 becomes low pressure exhaust chamber then from high pressure admission chamber, At this moment Q1 is still high pressure admission chamber, Q3 and Q4 is still low pressure exhaust chamber, and high pressure gas go successively to new high pressure admission chamber, promote Rotor 2 continues rotate counterclockwise.

When rotor 2 rotates counterclockwise Figure 15 position, the low pressure gas in discharge chamber Q3 drain, and Q1 is still high pressure admission Chamber, Q4 and Q5 is still low pressure exhaust chamber, and high pressure gas are also entering new high pressure admission chamber, and drive rotor 2 continues rotate counterclockwise.

When 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, the continuous rotate counterclockwise of drive rotor 2.In the other end of air motor, the situation also complete phase with this one end With.

Above-described embodiment is used for illustrating the present invention, rather than present aspect is limited, the present invention spirit and In scope of the claims, any modifications and changes that present aspect is made, both fall within protection scope of the present invention.

Claims

1. a kind of blade pneumatic motor is it is characterised in that include housing（1）, rotor（2）, blade（3）, sealing strip（4）, distribution Cone（5）And cushion block（6）, rotor（2）Positioned at housing（1）Center, housing（1）Externally-located, distribution is bored（5）Positioned at rotor（2）Two In the open circles table top of end, blade（3）It is placed in housing（1）In diagonal hollow ring, it also is located at rotor simultaneously（2）Groove Interior, and and rotor（2）At an angle, blade（3）A plane and distribution bore（5）Frustum cone side fit, sealing strip （4）Positioned at rotor（2）And blade（3）Between, its plane side and rotor（2）Laminating, round table surface side then with blade（3）'s Round table surface E1 is fitted, cushion block（6）Positioned at housing（1）In diagonal hollow ring, just fill up by housing（1）, blade（3）, turn Son（2）And sealing strip（4）The vacancy being formed；

Described blade（3）Circular for a quarter, total identical four, wherein a piece of blade（3）By two planes A1, B1 and Cylinder C1, sphere D1 and two round table surface E1, J1 enclose and form；Wherein, cylinder C1 be center be centre of sphere O1, radius and housing（1） The cylinder E4 of hollow ring radius identical cylinder, sphere D1 is the centre of sphere is O1 radius and rotor（2）Sphere C2 radius phase With sphere, the upper bottom surface diameter of round table surface E1 and round table surface J1 is all straight line R1S1, the going to the bottom of round table surface E1 and round table surface J1 The diameter in face is all straight line M1N1, and the side bus of round table surface E1 is straight line M1R1, and the side bus of round table surface J1 is straight line N1S1；Plane A1 is parallel with plane B1；The distance of plane A1 and plane B1 is blade（3）Thickness, blade（3）Thickness and housing （1）Hollow ring width equal；

Described sealing strip（4）Total identical eight, wherein one sealing strip（4）The face contacting with round table surface E1 be round platform Face, the diameter of the upper bottom surface of this round table surface is straight line R1S1, and the diameter of bottom surface is straight line P1Q1, the side bus of this round table surface It is straight line P1R1, the diameter parallel of plane K1 of this round table surface and excessively centre of sphere O1, plane K1 is vertical with the axis crossing centre of sphere O1 Distance is rotor（2）The half of orthogonal four-bladed vane thickness of slab, sphere G1 is the centre of sphere is O1 radius and rotor（2）The sphere C2 at center The equal sphere of radius, sphere F1 is the centre of sphere is that O1 radius is equal to rotor（2）The sphere of line segment O2M2, plane H1 and plane I1 are put down OK, its half long OP1 and housing（1）Cylinder F4 radius is equal, and inclined-plane R1 and inclined-plane S1 is two gradients with plane D4 for disk The equal inclined-plane of the gradient of B4；Sealing strip（4）Width and blade（3）Thickness is equal；Blade（3）And sealing strip（4）It is axle Symmetrically；

Described rotor（2）Central is the parallel dolioform billiard table cutting out two spherical crowns in two, such as symmetrical insertion one in the middle of billiard table Orthogonal four-bladed vane, disk A2 is parallel with disk B2, and sphere C2 and sphere D2 is the sphere that the centre of sphere is O2, plane I2 peace Face J2 is mutually perpendicular to, a blade（3）With two sealing strips（4）In groove between plane I2 and plane J2 for the arranged orthogonal, Just completely closely sealed, cylinder E2 and cylinder F2 is that central shaft crosses centre of sphere O2, radius and housing（1）Cylinder F4 radius identical post Face, side G2 and side H2 are two identical hollow round table surface, and upper and lower two bottoms of one of hollow round table are round respectively Plane B2 and the disc with straight line K2L2 as diameter, the length of straigh line of straight line K2M2 is rotor（2）Width, whole rotor （2）Not symmetrical only about centre of sphere O2, it is also axial symmetry；

Described distribution cone（5）It is a round platform, total identical two, the radius of upper bottom surface A3 of one of round platform and rotor （2）The radius of the side G2 of hollow round table and side H2 upper bottom surface is equal, the radius of bottom surface B3 and rotor（2）Hollow round table The radius of side G2 and side H2 bottom surface is equal, height and rotor（2）The height phase of the side G2 of hollow round table and side H2 Deng one side is plane C3 cut by a plane phase；This plane C3 is bored with distribution（5）The bus of frustum cone side is parallel, or not With distribution cone（5）The bus of frustum cone side is parallel；The width of plane C3 the widest part is not more than rotor（2）Orthogonal four-bladed vane plate Thickness, plane C3 and corresponding housing（1）Annulus parallel plane C4 and plane D4 fit；

Described housing（1）It is parallel dolioform sphere, thickness and the rotor cutting out two spherical crowns in two（2）Width K2M2 phase Deng disk A4 is parallel with disk B4 and radius is equal, and the central shaft of cylinder F4 crosses center of circle O4, radius and rotor（2）Left and right The radius of the cylinder E2 in outside and cylinder F2 is equal, housing（1）Cylinder is diagonally a hollow ring, annular width and blade （3）Thickness is equal, and two sides of hollow ring are plane C4 and plane D4, and plane C4 is parallel with plane D4, housing（1）'s The central shaft of the cylinder E4 of hollow ring passes through center of circle O4, positioned at housing（1）Diagonal on, its external diameter and blade（3）Cylinder The external diameter of C1 is equal, and is more than housing（1）The external diameter of sphere F4, plane C4 and distribution cone（5）The plane C3 laminating of side, puts down Face D4 and another distribution cone（5）The respective planes laminating of side, whole housing（1）Symmetrical with regard to billiard table center O4；

Cushion block（6）It is one section of annulus, total identical four, the outside of wherein is radius and housing（1）Hollow ring The equal cylinder A5 of cylinder E4 external diameter, inner side is that radius is equal to rotor（2）The sphere B5 of line segment O2M2, its upper and lower thickness with turn Son（2）Orthogonal four-bladed vane width K2M2 is equal, and two waists are round table surface C5 and round table surface D5, this round table surface upper bottom surface and going to the bottom The diameter in face is straight line P1Q1 and straight line M1N1 respectively, and straight line M1P1 is then its side bus, cushion block（6）It is shaped as axial symmetry.