WO1999004167A1

WO1999004167A1 - Vane pump

Info

Publication number: WO1999004167A1
Application number: PCT/KR1998/000213
Authority: WO
Inventors: Dong Il Hwang; Vin Hwang
Original assignee: Dong Il Hwang; Vin Hwang
Priority date: 1997-07-16
Filing date: 1998-07-15
Publication date: 1999-01-28
Also published as: AU8464098A

Abstract

A vane pump comprising a central shaft adapted to receive a rotational force from the outside, a ring gear formed in a hollow portion provided in the shaft, a linear gear formed on one end of a constant velocity coupling and meshed with the ring gear, and a ring gear formed in a hollow portion of an inner rotor and meshed with a linear gear formed on the other end of the constant velocity coupling, whereby it is rendered possible to rotate the shaft and inner rotor at an equal speed, insert a circular portion formed at one end of a vane into a circular hollow space of the inner rotor, bring the other end of the vane into contact with an inner surface of an outer rotor, and vary the volumes of a compression chamber and a supply chamber, the air being thereby compressed, so that high-pressure compressed air can be obtained by a small-volume vane pump without encountering the collision of parts causative of noise.

Description

Light

Title of invention

Pump yarn

Field Technology secrecy

The present invention relates to a vane pump. In particular, according to the present invention, while the internal rotor is rotated at a constant speed with the external rotor by the rotational force transmitted through the transmission part of the constant speed rotation at the center eccentric shaft, the circular part of the internal rotor has the circular part on one side. The present invention relates to a vane pump that prevents noise from being generated due to a collision while compressing air in a compression chamber between an inserted vane and an inner wall of an outer rotor.

Background art

In general, a vane pump is a plurality of vanes that are provided so that at least one vane reciprocates while receiving elasticity by a spring on a rotor that is eccentrically rotated by a cylindrical cylinder and receives an elastic force outward in accordance with the rotation of the rotor. Oil flowing through the suction port while the vane is in contact with the inner peripheral edge of the cylinder, or It is widely known that a fluid such as air is compressed and discharged through a discharge port.

In the conventional vane pump described above, the distance between the rotor that rotates about the eccentric rotation axis inside the cylinder and the cylinder is varied while approaching or distant. The rotor is configured to be protruded to the outside by the elastic force of the spring or to be pushed inward while being in contact with the inner wall of the cylinder. It has the disadvantage that it can be damaged due to damage, and the high speed of rotation cannot be achieved, and the material and size of the vane are limited.

Accordingly, the applicant has proposed a vane pump in Korean Patent Application No. 199 95 — 42007, which has a helical shaft cavity 2 formed at the center and is rotated by a motor (not shown). The upper and lower air circulation holes 4 and 5 and the inflow air 6 and 7 penetrating through the side face are integrally formed on the outer peripheral surface of the outer rotor 1 with the inner rotor 3 integrally formed on both sides.

The outer rotor 11, which is formed so as to protrude in the longitudinal direction from the inflow spaces 6, 7 of the inner rotor 3, and is positioned so as to be eccentric with respect to the bearing portion 1 by being sandwiched between the cylindrical working spaces. Air is supplied to the air circulation holes 4 and 5 through a large axial cavity 12;

The closed space formed by the outer surface of the inner rotor 3 and the inner surface of the outer rotor 11 is divided into a compression chamber and a supply chamber on the right and left sides of the vane, and the volume of the compression chamber and the supply chamber varies. Depending on the state, the air compressed in the compression chamber is discharged to the outside through the discharge port of the external rotor 11, Air is supplied to a large axial space 12 of the external rotor 11 through an air supply path 22, 23 connected to the outside to a housing 21 in which a closed type compressed air storage chamber is formed between the external rotor 11 and the housing 21. Supply the compressed air in the compressed air storage room to an external compression tank,

An oil circulation groove 28 is provided at a portion of the housing 21 having a small shaft space 25, which is in contact with the oil supply spaces 8 and 9 of the bearing portion 1 and in which the oil immersion portions 26 and 27 are formed in a circumferential shape and which is in contact with the external rotor 11 of the housing 21. And an oil circulation air 15 is formed in a large axial space 12 of the external rotor 11 which is in contact with the bearing 1.

By interconnecting the oil circulation groove 28 and the oil circulation air 15 with the oil circulation path 16, high-pressure compressed air can be generated in a small space in a closed state. It was designed so that it could be installed inside.

However, in the conventional vane pump as described above, the compressed air between the housing 21 and the compressed air while rotating while the vane is sandwiched by the working air in a state where the axes of the inner rotor 3 and the outer rotor 11 are different from each other. After the temporary storage in the storage room, the outer rotor is discharged to the outside.Therefore, the phenomenon that the vanes of the outer rotor 11 collide with the vanes while the inner rotor 3 sandwiched by the working air rotates eccentrically. There is also a problem that the collision sound is generated while the vane is in contact with both sides of the working air and the abrasion phenomenon occurs. DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems, and a vane having one side inserted into a circular hollow of an internal rotor that receives a rotational force through a center eccentric shaft through a transmission section of constant speed rotation. The objective is to obtain high-pressure compressed air without generating noise during compression while the other side is in contact with the inner surface of the outer rotor.

Also, according to the present invention, noise is generated at the time of compression while the inner rotor rotates together with the inside of the outer rotor while the other side of the vane having one side inserted into the circular hollow of the inner rotor contacts the operating groove of the outer rotor. Another object of the present invention is to obtain high-pressure compressed air.

In addition, the present invention provides a vane sandwiched through an opening on one side of a clamp inserted into a circular hollow of an internal rotor so that an external rotor rotates at a constant speed, so that noise is not generated during compression. Another object is to obtain high-pressure compressed air.

In addition, the present invention provides a method in which a thin clamp is inserted into a circular hollow of an inner rotor three times so that an outer rotor rotates at a constant speed in a state where a vane is sandwiched, so that noise is not generated during compression. Another object is to obtain high-pressure compressed air with stable operation.

Further, according to the present invention, while the inner rotor and the outer rotor rotate at a constant constant speed relative to each other, collision noise is not generated during rotation while the vanes of the inner rotor are sandwiched by the working air of the outer rotor. To do so for another purpose. The present invention for achieving the above-mentioned object is to form a ring gear in a space portion of a central bearing portion that receives a rotational force from the outside,

A ring gear formed in a space portion of the internal rotor is meshed with a linear gear on the other side of the constant velocity pulling in which one line gear is meshed with the ring gear so as to rotate at a constant speed. ,

A circular portion formed on the side of the vane is inserted into the circular cavity of the internal port,

The other side of the vane compresses air in accordance with a state where the volumes of the compression chamber and the supply chamber are changed while being in contact with the inner surface of the outer rotor, so that noise due to collision does not occur, and both have a simple configuration. It is designed to obtain high-pressure compressed air with a small volume. BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings.

FIGS. 2 and 3 are views showing a configuration according to one embodiment of the present invention. A ring gear 33 is provided in a space 32 on one side of a central bearing 31 which receives a rotational force from the outside through a motor (not shown). Formed in one piece,

On the other side of the constant-speed coupling 34 in which a linear gear 35 is meshed with the ring gear 33 of the space 32, a linear gear 36 is integrally formed and rotates at a constant speed even in an eccentric state. To be able to The ring gear 39 of the space 38 is meshed with the line gear 36 on the other side of the constant-speed pulling ring 34 and receives a constant-speed rotating force. Form 40,

The other inclined protrusion 44 on the other side of the vane 42 in which one circular portion 43 is sandwiched between the circular cavities 40 is in contact with the inner surface of the outer rotor 45 or is located in the insertion groove 41, and the inner rotor The bearing cover 46 depends on the state in which the volumes of the compression chamber A and the supply chamber B change while being eccentrically rotated together with the external port 45 while one side of the van 42 is sandwiched by the circular cavity 40 of 37. The air supplied to the compression chamber A through the air supply air 47 is compressed,

A compressed air storage chamber 49 is formed between the outer surface of the outer rotor 45 and the housing 48 to maintain a pressure equal to or higher than a predetermined pressure discharged through a discharge air 50 provided with a check valve 51 for preventing backflow of the outer rotor 45. After the compressed air is temporarily stored, it is discharged to an external tank.

In the vane pump of the present invention configured as described above, when a bearing (not shown) is rotated by operating a motor (not shown), a line gear 35 on one side meshes with a ring gear 33 formed in the space 32. The constant velocity pull ring 34 rotates together,

Due to the rotation of the constant-speed pulling ring 34, even when the internal rotor 37, in which the ring gear 39 of the space 38 is meshed with the line gear 36 on the other side, is eccentric with the bearing 31, rotation of air occurs while rotating at a constant speed. The compression process is performed, and the operation process will be described below.

The air flowing through the air supply air 47 of the bearing cover 46 is After being supplied to the supply chamber B defined by the vane 42 in which the circular portion 43 is inserted into the circular cavity 40 of 7 and the external rotor 45, the inclined protruding portion 44 of the vane 42 in contact with the internal rotor 37 and the external rotor 45 The compression is performed in the compression chamber A whose volume changes.

That is, as shown in FIG. 3A, the air enters the supply chamber B, and the rotational force is transmitted and received through the constant-speed coupling 34 according to the rotation of the bearing portion 31, and the circular space 40 of the internal rotor 37 is circular. Since the inner rotor 37 and the outer rotor 45 are in airtight contact with the vane 42 between which the part 43 is sandwiched, the vane 42 on the other side moves rightward with the inclined projection 44 on the other side positioned in the insertion groove 41 of the circular cavity 40 of the inner rotor 37. To rotate.

As shown in FIG. 3B, the vane 42 in which the circular portion 43 is inserted into the circular space 40 of the internal rotor 37 by the bearing portion 31 moves 90 to the right together with the internal rotor 37 and the external rotor 45. 〖When rotating, the volume of the compression chamber A, which was the supply chamber B, was closed by the outer rotor 45, the inclined protrusion 44 of the vane 42, and the inner rotor 37, and the supply chamber B was newly secured. Air is introduced from outside.

In this case, the outer rotor 45 is more than the inner rotor 37 with the inclined protrusion 44 of the vane 42 in a state where the circular portion 43 is inserted into the circular cavity 40 of the inner rotor 37 being in contact with the inner surface of the outer rotor 45. Although it appears to be rotating, the circular portion 43 of the vane 42 slightly rotates in the circular space 40 of the internal rotor 37, so that the inclined protruding portion 44 of the vane 42 passes through the internal surface and the inclined surface of the external rotor 45. The state of surface contact is maintained, and at this time, the inclined protrusion 44 of the vane 42 is stabilized by the pressure of the compressed air and the pressure of the newly introduced air flowing into the supply chamber B. Keep airtight Will be maintained.

As shown in FIG. 3C, when the inner rotor 37 and the outer rotor 45 rotate by about 180 °, the volumes of the compression chamber A and the supply chamber B become almost equal, and the air in the compression chamber A is further compressed.

At this time, the vane 42 in which the circular portion 43 is inserted into the circular cavity 40 of the internal rotor 37 comes into contact with the inner surface of the external rotor 45.

As shown in FIG. 3d, when the inner rotor 37 and the outer rotor 45 rotate by about 270 °, a part of the compressed air compressed from the compression chamber A discharges air while pressing the check valve 51 for preventing backflow. After being temporarily stored in the compressed air storage chamber 49 through the air, it is discharged from an external compressed tank.

At this time, the vane 42 in which the circular portion 43 is inserted into the circular cavity 40 of the inner rotor 37 is rotated more than the outer rotor 45, but the compressed air pressure causes the vane 42 to rotate. The inclined protrusion 44 is pushed so as to be in contact with the inner surface of the outer rotor 45, and the circular portion 42 rotates a little more in the circular space 40 of the inner rotor 37, so that stable operation is possible. The airtightness is maintained.

When the inner rotor 37 and the outer rotor 45 rotate 360 ° while swinging as shown in FIG. 3A, the compressed air is completely discharged, and at the same time, new air flows into the supply chamber B. .

FIGS. 4A to 4D show an operation state according to another embodiment of the present invention. The air flowing in from the outside is the same as the vane 33 having the circular portion 62 inserted into the circular space 62 of the internal rotor 61 and the outside. After being supplied to the supply chamber B partitioned by the rotor 67, The protruding portion 65 where the inner rotor 61 and the outer rotor 67 are in contact with each other, the vane 63 and the working groove 66 are compressed in the compression chamber A whose volume is changed.

That is, as shown in FIG. 4A, air flows into the supply chamber B, and the circular portion 64 of the vane 63 is formed in the circular space 62 of the internal rotor 61 that rotates together with the rotation of the bearing portion 60. In the sandwiched state, the curved surface 66 of the other side protrusion 65 rotates rightward while being in contact with the operating groove 68 of the external rotor 67.

As shown in FIG. 4b, when the vane 63 in which the circular portion 64 is inserted into the circular space 62 of the internal rotor 61 by the bearing portion 60 rotates rightward by 90 ° together with the internal rotor 61 and the external rotor 67, the supply is performed. The volume of the compression chamber A, which was the chamber B, was closed by the outer rotor 67, the protruding portion 65 of the vane 63, and the inner rotor 61, so that the supply chamber B was newly secured and air from the outside was introduced. .

At this time, the outer rotor 67 rotated more than the inner rotor 61 in a state where the protruding portion 65 of the vane 63 in a state where the circular portion 64 was inserted into the circular hollow 62 of the inner rotor 61 was in contact with the operating groove 68. However, since the circular portion 64 of the vane 63 rotates a little more in the circular space 62 of the internal rotor 61, the protrusion 65 of the vane 63 forms the curved surface 66 in the working groove 68 of the external rotor 67. The state of the surface contact is maintained continuously, and at this time, the airtightness of the compression chamber A is maintained by the Apex seal (Seal) 69 of the circular hollow 62.

The pressure of the air compressed by the vane 63 is received in the direction of the arrow, but is offset by the pressure applied between the curved surface 66 of the projection 64 and the operating groove 68, so that a strong pressure is applied to the vane 63. I can't.

As shown in FIG. 4c, the inner rotor 61 and the outer rotor 67 rotate by about 180 °. Then, the volumes of the compression chamber A and the supply chamber B become almost equal, and the air in the compression chamber A is further compressed.

At this time, the vane 63 in which the circular portion 64 is inserted into the circular space 62 of the internal rotor 61 is located at the center of the working groove 68 of the external rotor 67.

As shown in Fig. 4d, when the inner rotor 61 and the outer rotor 67 rotated about 270 °, part of the compressed air compressed from the compression chamber A was temporarily stored in the compressed air storage chamber 49 without backflow. Later, it is discharged to an external compression tank.

At this time, the vane 63 in which the circular portion 64 is inserted into the circular hollow 62 of the internal rotor 61 is rotated slightly less than the external rotor 67, but due to the compressed air pressure. The protruding part 65 of the vane 63 is pushed so as to be in contact with the insertion groove 68 of the external rotor 67, and the circular part 63 is slightly rotated in the circular hollow 62 of the internal rotor 61, so that stable operation is possible. At this time, the airtightness of the compression chamber A is continuously maintained by the Apex seal (Seal) 69.

Further, when the inner rotor and the outer rotor 67 rotate 360 ° while swinging as shown in FIG. 4A, the compressed air is completely discharged and new air flows into the supply chamber B.

FIG. 5 is a longitudinal sectional view according to another embodiment of the present invention, and FIG. 6 is a view schematically showing an operation process.

A fixed groove 73 is formed in a space 72 of the central bearing 71 which receives the rotational force from the outside through a motor (not shown),

The other side of the constant velocity pulling 74 in which one fixing rod 75 is inserted into the fixing groove 73 A fixing groove 79 formed in the space 78 of the internal rotor 77 is inserted into the fixing rod 76 of the inner rotor 77 so that it rotates at a constant speed.

A ring-shaped clamp 81 having one side opened is inserted into the circular cavity 80 of the internal rotor 77 so that the hermeticity is maintained by an Apex seal (Seal) 82.

The vane 87 of the outer rotor 86 is held in contact with the face 85 of the shoe 83 in which one end of the clamp 81 comes into surface contact with the curved groove 84. The vane 87 of the outer rotor 86 is sandwiched between the clamps 81, and rotates together with the inner rotor 77. The air supplied to the compression chamber A through the air supply air 89 of the bearing cover 88 is compressed by the state in which the volumes of the compression chamber A and the supply chamber B are changed by the

A compressed air storage chamber 91 is formed between the outer surface of the outer rotor 86 and the housing 90 to maintain a pressure equal to or higher than a predetermined pressure discharged through a discharge air 92 provided with a check valve 93 for preventing backflow of the outer rotor 86. After the compressed air is temporarily stored, it is discharged to an external tank.

Therefore, when the bearing 71 is rotated by operating the motor (not shown), the constant velocity coupling 74 in which the fixing rod 75 on one side is sandwiched in the fixing groove 73 formed in the space 72 is formed. Rotate,

In accordance with the rotation of the constant velocity coupling 74, the other fixed rod 76 is interposed between the fixing groove 79 of the space 78 and the internal rotor 77 is eccentric with the bearing 71. Compression is performed.

That is, the ring-shaped clamp 81 inserted into the circular air space 80 of the internal rotor 77 flowing through the air supply air space 90 of the bearing cover 89 is attached to the Apex seal 82. Therefore, the inner rotor can be rotated while airtightness is maintained, and the vane 87 of the outer port 86 is in contact with the face 85 of the shell 83 where the curved groove 84 is in contact with the clamp 81. After being supplied to the supply chamber B defined by the outer rotor 86 and the van 87, it is compressed in the compression chamber A whose volume is changed by the inner rotor 77, the outer rotor 86 and the van 87. To do.

As shown in FIG. 6 a, the air enters the supply chamber B, and the ring inserted into the circular hollow 80 of the internal rotor 77 receives the rotational force through the constant-force coupling 74 by the rotation of the bearing 71. The clamp 81 having a shape is stably contacted by the shoe 83 while rotating, so that the vane 87 rotates rightward together with the inserted external rotor 86.

As shown in FIG. 6b, the ring-shaped clamp 81 inserted into the circular cavity 80 of the inner rotor 77 by the bearing 71 rotates together with the face 85 of the shoe 83 where the curved groove 84 contacts one end while rotating together. When it rotates 90 ° clockwise together with the vane 87 of the outer rotor 86, which is in contact with and maintains airtightness, the compression chamber A, which was the supply chamber B, is sealed by the outer rotor 86, the vane 87, and the inner rotor 77. The supply volume B is newly secured and air from outside flows in.

At this time, the airtightness of the clamp 81 inserted in the circular hollow 80 of the internal rotor 77 is maintained by the Apex seal (Seal) 82, and the external rotor 86 is held in a state where the vane 87 is sandwiched by the clamp 81. Is slightly more rotated than the inner rotor 77, but the clamp 81 into which the vane 87 is inserted rotates a little more in the circular hollow 80 of the inner rotor 77, so that the vane 87 of the outer rotor 86 is rotated. Continue to be sandwiched The airtightness of the compression chamber is maintained while the one end of the clamp 81 and the vane 87 are in surface contact with the curved groove 84 and the face 85 of the shroud 83.

As shown in FIG. 6C, when the inner rotor 77 and the outer rotor 85 rotate about 180 °, the volumes of the compression chamber A and the supply chamber B become almost equal, and the air in the compression chamber A is further compressed.

At this time, the airtightness of the clamp 81 inserted in the circular hollow 80 of the internal rotor 77 is maintained by the Apex seal (Seal) 82, and the external rotor 86 is held in a state where the vane 87 is sandwiched by the clamp 81. The inner rotor 77 and the inner rotor 77 rotate in the same manner, so that the state in which the vane 87 of the outer rotor 86 is sandwiched can be continuously maintained, and one end of the clamp 81 is formed by the curved groove 84 and the face 85 of the shoe 83. The airtightness of the compression chamber A is maintained while maintaining the state in which the vanes 87 are in surface contact.

As shown in Fig. 6d, when the inner rotor 77 and the outer rotor 85 rotate about 270 °, a part of the compressed air compressed from the compression chamber A passes through the discharge air 92 while pushing the check valve 93 for preventing backflow. After being temporarily stored in the compressed air storage room 91, it is discharged to an external compression tank.

At this time, the airtightness of the clamp 81 inserted in the circular hollow 80 of the internal rotor 77 is maintained by the Apex seal (Seal) 82, and the external rotor 86 is held in a state where the vane 87 is sandwiched by the clamp 81. Is rotated slightly less than the inner rotor 77, but the clamp 81 with the vane 87 inserted rotates slightly more in the circular space 80 of the inner rotor 77, so the vane 87 of the outer rotor 86 is pinched. One end of the clamp 81 and the vane 87 can be maintained by the curved groove 84 and the face 85 of the shoe 83. The airtightness of the compression chamber A is maintained while maintaining the surface contact state.

When the inner rotor 37 and the outer rotor 45 rotate 360 ° while rotating, as shown in Fig. 6a, the compressed air is completely discharged, and at the same time, new air flows into the supply chamber B. Become.

In the above embodiment, the airtightness is maintained while the face 85 of the shoe 83 sandwiched so that one end of the clamp 81 is in surface contact with the curved groove 84 while rotating together with the vane 87 of the external rotor 86. However, even if one end of the clamp 81 directly contacts the vane 87 of the external rotor 86, airtightness is maintained during rotation.

FIG. 7 is a diagram showing a configuration according to another embodiment of the present invention.

When the bearing 91 is rotated by a motor (not shown), the circular hollow 93 of the inner rotor 92 has one side protruding portions 95, 97, and 99, and a ring-shaped clamp 94,%, 98. By inserting a large number of them, it is possible to rotate while maintaining airtightness between the vane 101 of the external rotor 100 and the unity itself and the bending and stretching force of the protrusions 95, 97, 99 on one side,

The inside of the supply chamber B partitioned by the inner rotor 92, the outer rotor 100, and the vane 101 so that both sides of the clamps 94,%, and 98 are in airtight contact with the vane 101 of the outer rotor 100. After the air is supplied to the inner rotor 92, the inner rotor 92 and the outer rotor 101 may be compressed in the compression chamber A whose volume is changed by the clamps 94, 96, 98 and the vane 101.

FIG. 8 is a longitudinal sectional view showing a structure according to another embodiment of the present invention, and FIG. 9 is a transverse sectional view showing the structure of an internal rotor and an external rotor. A space 114 is formed on one side of an inner rotor 111 having an air supply passage 113 provided in a central shaft 112,

In the space 114 of the internal rotor 111 in which the supply air 115 and the air circulation passage 116 are formed, an operation deviation 121 in which an air circulation passage 122 and an operation air 123 are formed and an operation deviation 126 in which an operation air 127 is formed are provided. As well as reciprocating inside,

In the concave grooves 124, 129 of the inner peripheral surfaces of the two operating biases 121, 126, a semilunar elastic bias 125 is provided, and due to this elasticity, the operating biases 121, 126 and the inner peripheral surface of the space 114 are formed. Airtightness is maintained between the inner peripheral surfaces of the space 114 by two Apex seals 117 while maintaining airtightness between

An external rotation that rotates about a rotation shaft 133 to which the rotational force of a motor (not shown) is transmitted while a vane 132 projecting from the outer surface is sandwiched between the operating cavities 123 and 127 by the operating deviations 121 and 126 of the internal rotor 111. The rotor 131 rotates the internal rotor 111 in an eccentric state,

At the center of the inner rotor 111, a ring gear 118 is formed on the inner surface of the recessed position, and a gear 135 is formed on the inner surface of the inner rotor 111 at a position recessed also at the center of the outer rotor 131. -Form a ring gear 134 that is a body,

Gears 137 and 138 formed on the outer surface of a spherical linear gear 136 are inserted and eccentric to the gears 119 and 135 of the ring gears 118 and 134 of the inner rotor 111 and the outer rotor 131 so as to mesh with each other. The inner rotor 111 and the outer rotor 131 are rotated at a constant speed.

Outside the inner rotor 111 and the outer rotor 131, a bearing 144, 145, 146, 147 are provided and the upper housing 141 and the lower housing 142 are connected,

Compressed air is supplied to an external compression tank (not shown) through an air supply path 143 connected to the outside to a lower housing 142 in which a closed compressed air storage chamber C is formed between the external rotor 131 and the external rotor 131. Configured as

The outer rotor 131, which is hermetically connected to the inner rotor 111, is configured such that the upper outer rotor 131a and the lower outer rotor 131b are connected by a number of bolts 139,

An upper housing 141 and a lower housing 142 which are hermetically connected to the outer rotor 131 may be connected by bolts 147 and nuts 148.

INDUSTRIAL APPLICABILITY According to the vane pump of the present invention, a ring gear is formed in a space portion of a central bearing portion that receives an external rotational force, and a line gear on one side is meshed with the ring gear. A ring gear formed in a space portion of the internal rotor meshes with a line gear on the other side of the constant velocity pulling so that the ring gear rotates at a constant speed. The other side of the vane compresses air in a state where the volumes of the compression chamber and the supply chamber are changed while being in contact with the operating groove of the external rotor. Therefore, high-pressure compressed air can be obtained in a small volume without generating noise due to collision. BRIEF DESCRIPTION OF THE FIGURES

【Figure 1】

FIG. 1 is a diagram showing the overall configuration of a conventional vane pump.

【Figure 2】

FIG. 2 is a diagram showing an overall configuration according to one embodiment of the present invention.

[Fig. 3a-d]

3a to 3d are schematic diagrams illustrating an operation process according to one embodiment of the present invention. [Fig. 4a-d]

4A to 4D are schematic views showing an operation process according to another embodiment of the present invention. 0 [Fig. 5]

FIG. 5 is a longitudinal sectional view showing an overall configuration according to one embodiment of the present invention. [Fig. 6a-d]

6A to 6D are schematic views showing an operation process according to another embodiment of the present invention. [Fig. 7]

FIG. 7 is a cross-sectional view showing a configuration according to another embodiment of the present invention.

[Fig. 8]

FIG. 8 is a longitudinal sectional view showing an overall configuration according to another embodiment of the present invention. [Fig. 9]

FIG. 9 is a cross-sectional view showing a configuration of an internal rotor and an external rotor according to another embodiment of the present invention.

[Explanation of symbols] Inner rotor 37 Circular hollow 40 Input groove 41 Vane 42 Inclined discharge section 44 Outer | 5 Rotor 45

Claims

The scope of the claims

[Claim 1]

A ring gear 33 is formed integrally with the space 32 on one side of the central bearing 31 that receives rotational force from the outside,

A linear gear 36 is integrally formed on the other side of the constant-speed ring 34 in which a linear gear 35 is meshed with a ring gear 33 of the space 32, and can be rotated at a constant speed even in an eccentric state. So that

On the outer peripheral surface of the inner rotor 37 that receives the constant-speed rotation force by engaging the ring gear 39 of the space portion 38 with the other-side line gear 36 of the constant-speed pulling ring 34, a circular cavity 40 integrated with the insertion groove 41 is formed. Forming

The other inclined protrusion 44 on the other side of the vane 42 in which one circular portion 43 is sandwiched between the circular cavities 40 is in contact with the inner surface of the outer rotor 45 or is located in the insertion groove 41, and the inner rotor While one side of the vane 42 is sandwiched between the 37 circular cavities 40 and the eccentric rotation with the external port 45, the volume of the compression chamber A and the supply chamber B changes during rotation. The air supplied to the compression chamber A through the air supply air 47 of 46 is compressed,

A compressed air storage chamber 49 is formed between the outer surface of the outer rotor 45 and the housing 48 and has a pressure equal to or higher than a predetermined pressure discharged through a discharge air 50 provided with a check valve 51 for preventing backflow of the outer rotor 45. A vane pump characterized in that compressed air is temporarily stored and then discharged to an external tank 20.

[Claim 2]

A circular hollow 62 is formed on the outer peripheral surface of the internal rotor 61,

A circular surface 64 is integrally formed with a protruding portion 65 on the other side of the vane 63 in which a circular portion 64 on one side is sandwiched while maintaining airtightness by an Apex seal 69 in a circular space 62 of the internal rotor 61. The vane pump according to claim 1, characterized in that the vane pump is configured so as to be in surface contact with the operating groove (68) of the external rotor (67).

[Claim 3]

A fixed groove 73 is formed in the space 72 of the central bearing 71 that receives rotational force from the outside,

A fixed groove 79 formed in the space 78 of the internal rotor 77 is inserted into the fixed rod 76 on the other side, in which the fixed rod 75 on one side is inserted into the fixed groove 73, and rotates at a constant speed. In the vane pump configured to

The vane 87 of the outer rotor 86 is in contact with the face 85 of the shoe 83 in which one end of the clamp 81 is in surface contact with the curved groove 84, and the clamp 81 is sandwiched by the clamp 81 and rotates together. Vane pump.

[Claim 4]

One end of a ring-shaped clamp 81 that is inserted into the circular hollow 80 of the inner rotor 77 and has an open side is configured to rotate together with the vane 87 of the outer rotor 86 while being in contact therewith. The vane pump according to claim 3.

[Claim 5]

The circular hollow 93 of the internal rotor 92 is integrally formed with projections 95, 97, and 99 partially cut off on the supply chamber side, and is provided with three thin ring-shaped clamps 94, 96, and 98 having one side opened. The vane pump according to claim 3, characterized in that the vane pump is inserted into the vane so as to sandwich the vane 101 of the external rotor 100.

[Claim 6]

A space 114 is formed on one side of an inner rotor 111 having an air supply passage 113 provided in a central shaft 112,

In the space 114 of the internal rotor 111 in which the air supply air 115 and the air circulation passage 116 are formed, the operating bias 121 in which the air circulation passage 122 and the working air 123 are formed and the operating bias 126 in which the working air 127 is formed 126 Is installed internally to maintain airtightness,

The outer rotor 131 that rotates about the rotation shaft 133 while the vane 132 formed on the outer surface is sandwiched between the operating cavities 123 and 127 by the operating biases 121 and 126 of the inner rotor 111 is eccentric to the inner rotor 111. So that it rotates

A ring gear 118 integral with the gear 119 is formed on the inner surface of the inner rotor 111 and the outer rotor 131 at the concave portion at the center, and a gear 135 is formed on the inner surface of the outer rotor 131 at the concave position. An integral ring gear 134 is formed, and an inner rotor 111 and an outer rotor 131 that are eccentric by inserting a spherical line gear 136 into the gears 119 and 135 so that the gears 137 and 138 mesh with each other are equal. Make it spin faster,

Of the operating deviations 121 and 126 provided inside the space 114 of the internal rotor 111, A semi-lunar elastic bias 125 is provided in the concave grooves 124 and 129 on the peripheral surface to maintain airtightness between the operating bias 121 and 126 and the outer peripheral surface of the space 114 by elasticity, and two Ap ex seals. (Seal) A vane pump characterized in that it is configured to maintain airtightness between the inner peripheral surfaces of the space 114 by means of 117.