CN100455772C - Rotary piston type pneumatic motor - Google Patents
Rotary piston type pneumatic motor Download PDFInfo
- Publication number
- CN100455772C CN100455772C CNB031510639A CN03151063A CN100455772C CN 100455772 C CN100455772 C CN 100455772C CN B031510639 A CNB031510639 A CN B031510639A CN 03151063 A CN03151063 A CN 03151063A CN 100455772 C CN100455772 C CN 100455772C
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- CN
- China
- Prior art keywords
- rotor
- connecting rod
- stator
- piston
- cylindrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Hydraulic Motors (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention discloses a rotary piston type pneumatic motor which comprises a stator component and a rotor component, wherein an inner hole of a stator is in a cylindrical shape, the middles of the two side surfaces of the stator are symmetric to a shaft line and are respectively provided with an air inlet cavity and an air exhaust cavity, and the air inlet cavity is near one end of the air exhaust cavity; a rotor of the rotor component is in a cylindrical shape, pistons are arranged in cylindrical holes in the side surfaces of the rotor, the cylindrical side surfaces of the pistons are connected with one end of a connecting rod via piston pins, and the other end of the connecting rod rotates around a fixed point. The cylindrical side surfaces of the stator or the cylindrical side surfaces of the rotor are provided with sealing rings and grooves or without the sealing rings and the grooves, the rotary radius of the connecting rod is half of the rotary radius of the rotor, and the other end of the connecting rod or the rotor is a torque output end. The pistons always rotate when the pneumatic motor operates, and two pressure circulations of air supply and air exhaust are automatically completed after circle operation without valve mechanisms, such as an air inlet valve, an air exhaust valve, etc. One piston of the present invention has the functions of two pistons of a reciprocating piston type pneumatic motor. The present invention has the advantages of good technological performance, favorable tightness, simple structure and high overall efficiency.
Description
Affiliated technical field
The present invention relates to pneumatic motor, relate in particular to a kind of rotary-piston type pneumatic motor.
Background technique
Existing piston formula pneumatic motor, piston are reciprocating motion type, owing to will overcome reciprocating inertial force, so energy consumption is big, operation is uneven, and noise is big.And distribution device complexity.Thereby the overall efficiency of motor is lower.
Summary of the invention
The purpose of this invention is to provide a kind of rotary-piston type pneumatic motor, this pneumatic motor when operation piston all the time in rotation, and move a week, finish inlet and outlet automatically, need not the inlet and outlet valve etc. distribution device.Piston rotates a circle, and finishes two pressures cycle.
In order to achieve the above object, the technical solution used in the present invention is as follows:
1) stator component: the endoporus of stator is cylindrical, and the middle part, stator bi-side that is symmetrical in axis has air-inlet cavity, exhaust cavity, and air-inlet cavity is near an end of exhaust cavity;
2) rotor part: rotor is cylindrical, in the side cylindrical hole of rotor piston is housed, the side of piston cylinder links with wrist pin and connecting rod one end, the connecting rod the other end rotates around a fixed point, seal ring and groove are housed on the cylindrical side of stator or the cylindrical side of rotor or seal ring and groove are not housed, the radius of gyration of connecting rod is half of rotor rotation radius, and the connecting rod the other end or rotor are the torque output terminal.
The present invention compares with background technique, and the useful effect that has is: this motor piston when operation does not just have reciprocating inertial force all the time in rotation, operates steadily, and noise is little.And move a week, finish inlet and outlet automatically, need not the inlet and outlet valve etc. distribution device.Piston rotates a circle, and finishes two pressures cycle.Piston of the present invention is equivalent to the effect of two pistons of reciprocating-piston engine.In addition, technology capability of the present invention is good, good seal performance.So the present invention is not only simple in structure, and the overall efficiency height.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is rotor and piston assembling schematic representation;
Fig. 3 is rotor, connecting rod and wrist pin assembling schematic representation;
Fig. 4 is an operation working principle schematic representation of the present invention.
Among the figure: 1 stator, 2 rotors, 3 pistons, 4 wrist pins, 5 connecting rods, one end, the 6 connecting rod the other ends, JJ ' air-inlet cavity, PP ' exhaust cavity.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes:
1) stator component: the endoporus of stator 1 is cylindrical, and the middle part, stator bi-side that is symmetrical in axis has air-inlet cavity j, j ', exhaust cavity p, p ', and air-inlet cavity j, j ' are near the end of exhaust cavity p, p ';
2) rotor part: rotor 2 is cylindrical, in the side cylindrical hole of rotor 2 piston 3 is housed, the side of piston 3 cylinders links with wrist pin 4 and connecting rod one end 5, the connecting rod the other end 6 rotates around a fixed point, seal ring and groove are housed on the cylindrical side of the cylindrical side of stator 1 or rotor 2 or seal ring and groove are not housed, the radius of gyration o of connecting rod
1o
2 Be rotor 2 radius of gyration o
2Half of o, the connecting rod the other end 6 or rotor 2 are the torque output terminal.
Can also inlet and outlet piece 7 be housed at the two ends of the side of rotor 2 cylindrical hole.
The aperture of said exhaust cavity p, p ' is greater than the aperture of air-inlet cavity j, j '.
Operation working principle of the present invention is as follows:
(Fig. 4 is a) time, and pressurized gas enters air chamber S from air-inlet cavity JJ ', and promotes piston motion when piston is in the air inlet initial position.Piston rotates by the wrist pin drivening rod, thereby drives the rotor rotation.Because the expansion of pressurized gas causes piston to drive rotor and rotates (Fig. 4 b) continuously, finishes until expanding (Fig. 4 c).Subsequent is that exhaust begins.When rotor continues rotation, proceed exhaust (Fig. 4 d), until exhaust ends, rotor and piston are got back to the position shown in (Fig. 4 e).This is a circulation, and subsequent is second circulation.So go round and begin again continuous operation.Because the interlock of connecting rod, piston and rotor, in entire work process, piston is in rotation status all the time.Power is from connecting rod or rotor shaft (Fig. 1) output.When (or exhaust) expanded in rotor air chamber S one end air inlet, (Fig. 4 a), vice versa in the other end Q exhaust (or air inlet expansion) simultaneously.In other words, the two ends of piston have two acting chambers simultaneously.So, when rotor rotates a circle, two pressures cycle have just been finished.In other words, in fact piston of the present invention is equivalent to the effect of reciprocating type two pistons.Inlet and outlet of the present invention are determined by rotor and position of piston fully.JJ ' the section of stator is air inlet (air inlet angle is variable on demand), and PP ' section is exhaust, as shown in Figure 1.When rotor rotated a circle, the inlet and outlet process was finished automatically, the distribution device of therefore need not doing what suits oneself again.
Claims (3)
1, a kind of rotary-piston type pneumatic motor is characterized in that it comprises:
1) stator component: the endoporus of stator (1) is cylindrical, and the middle part, stator bi-side that is symmetrical in axis has air-inlet cavity (j, j '), exhaust cavity (p, p '), and air-inlet cavity (j, j ') is near the end of exhaust cavity (p, p ');
2) rotor part: rotor (2) is cylindrical, piston (3) is housed in the side cylindrical hole of rotor (2), the side of piston (3) cylinder links with wrist pin (4) and connecting rod one end (5), the connecting rod the other end (6) rotates around a fixed point, seal ring and groove are housed on the cylindrical side of the cylindrical side of stator (1) or rotor (2) or seal ring and groove are not housed, the radius of gyration (o of connecting rod
1o
2) be rotor (2) radius of gyration (o
2O) half, the connecting rod the other end (6) or rotor (2) are the torque output terminal.
2, a kind of rotary-piston type pneumatic motor according to claim 1, it is characterized in that: inlet and outlet piece (7) is equipped with at the two ends of the side cylindrical hole of rotor (2).
3, a kind of rotary-piston type pneumatic motor according to claim 1 is characterized in that: the aperture of exhaust cavity (p, p ') is greater than the aperture of air-inlet cavity (j, j ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031510639A CN100455772C (en) | 2003-09-16 | 2003-09-16 | Rotary piston type pneumatic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031510639A CN100455772C (en) | 2003-09-16 | 2003-09-16 | Rotary piston type pneumatic motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1525045A CN1525045A (en) | 2004-09-01 |
| CN100455772C true CN100455772C (en) | 2009-01-28 |
Family
ID=34286886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031510639A Expired - Fee Related CN100455772C (en) | 2003-09-16 | 2003-09-16 | Rotary piston type pneumatic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100455772C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871384A (en) * | 2023-08-18 | 2023-10-13 | 南皮县伟达五金制造有限公司 | Pneumatic punching machine for sheet metal machining |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07233732A (en) * | 1994-02-21 | 1995-09-05 | Toshihiro Fujita | Rotary engine |
| CN2256470Y (en) * | 1995-09-20 | 1997-06-18 | 宁波液压马达厂 | Low speed large torque radial plunger type hydraulic motor |
| US6328547B1 (en) * | 1999-04-08 | 2001-12-11 | Nakanin Co. Ltd | Rotary pump |
-
2003
- 2003-09-16 CN CNB031510639A patent/CN100455772C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07233732A (en) * | 1994-02-21 | 1995-09-05 | Toshihiro Fujita | Rotary engine |
| CN2256470Y (en) * | 1995-09-20 | 1997-06-18 | 宁波液压马达厂 | Low speed large torque radial plunger type hydraulic motor |
| US6328547B1 (en) * | 1999-04-08 | 2001-12-11 | Nakanin Co. Ltd | Rotary pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1525045A (en) | 2004-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20091016 |