CN108533324A - A kind of single cylinder pneumatic motor - Google Patents
A kind of single cylinder pneumatic motor Download PDFInfo
- Publication number
- CN108533324A CN108533324A CN201810209440.6A CN201810209440A CN108533324A CN 108533324 A CN108533324 A CN 108533324A CN 201810209440 A CN201810209440 A CN 201810209440A CN 108533324 A CN108533324 A CN 108533324A
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- CN
- China
- Prior art keywords
- interior bar
- bar
- piston
- pneumatic motor
- pressure
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
- F01B1/01—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with one single cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B25/00—Regulating, controlling, or safety means
- F01B25/02—Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention belongs to engine arts, and in particular to a kind of single cylinder pneumatic motor adjusting air source output pressure according to operating condition, piston can reduce the fluctuation of stress when air source output pressure changes, improve the stability of operation；Including：Compressed gas source container, cylinder block, piston component, switching device, sensor and controller, piston component includes the piston rod of piston head and set rod-type, piston rod includes outer bar and interior bar, it is interior, buffer is equipped in gap between outer bar, buffer includes the magnetorheological fluid filled in shell and shell flexible, the form of electromagnet is made in interior bar, magnetorheological fluid can change the damping property of itself under the magnetic fields of interior bar, in the pressure of output gas increased moment, outer bar is in the case where stress is uprushed, the damping of magnetorheological fluid, which is controlled, to become smaller, outer bar is set to obtain the cushioning effect of bigger in gap, to keep the force stability of interior bar unaffected, ensure the stabilization of the output of piston rod.
Description
Technical field
The invention belongs to field of engine control, more particularly to a kind of single cylinder with high stability piston component is pneumatic
Machine.
Background technology
The engine of single-cylinder, also referred to as compressed air engine or pneumatic motor are operated using the pressure energy of compressed gas source
Machinery, such as：The structure of the patented product pneumatic type engine of Zhang Xun, electronic valve control porthole leak informaton frequency, make in compressed gas bucket
Compressed gas by exhaust outlet be discharged through air intake push piston, then by gas outlet be discharged and enter compressed gas bucket through air inlet,
It pushes steam-cylinder piston by compressed gas by generates kinetic energy (referenced patent document CN102477870A).
The patented product of Geng Huitang is using solar energy as the generating set of power, and the medium in heat-exchange tube is by solar energy heating
Pipe heats, until boiling, after steam pressure is more than the suction-combining force of magnet, instantaneous burst makes piston rush upwards, and passes through song
The linear motion of piston is become circular motion by handle link mechanism etc., drives generator operation power generation, when piston whereabouts is blocked up again
Firmly after gas nozzle, after steam pressure is again above the suction-combining force of magnet piston need to be rushed to (referenced patent text again upwards
Offer CN101230787A).
A kind of low energy consumption groover of patented product of Hunan long letter construction group Co., Ltd, engine system is pneumatic
Machine, including air pressure pump, compressed air cylinder etc., the compressed air cylinder inside division are the higher-pressure region being disposed over and set
The low-pressure area in lower section is set, compressed air (the referenced patent document of different pressures can be selected according to rotating speed
CN105804796A)。
The energy-efficient piston type motor that a kind of Novel air of patented product, the magnetic knot of BJ University of Aeronautics ＆ Astronautics close, pressure
The air consumption of contracting air is greatly reduced, and is acted on using the energy storage of Magnetomotive device, and supplementary compressed air acting makes it with interval
Formula supplies drive rotor rotation, can significantly improve efficiency, significantly decrease air consumption (referenced patent document CN103061814A).
Invention content
The present invention provides a kind of pneumatic motor adjusting air source output pressure according to operating condition, and piston has buffer
Structure, for when air source output pressure changes, reducing the fluctuation of the stress of piston, the operation for improving piston and pneumatic motor entirety is steady
It is qualitative.
Single cylinder pneumatic motor comprising compressed gas source container, cylinder block, piston component, compressed gas source container include low pressure
Tank and pressure pan, piston component move back and forth under the action of the output gas of compressed gas source container in cylinder block；
It further includes,
Switching device is low for selecting or switching for the control valve in the output gas circuit of low-pressure tank and pressure pan
Press one of tank or pressure pan as the air source to cylinder block output gas；
Sensor, the rotating speed for monitoring single cylinder pneumatic motor and/or load；
Controller, the operation of the data control switching device for being arrived according to Sensor monitoring, when turning for single cylinder pneumatic motor
When speed and/or load are less than predetermined value, controller controls switching device and selects low-pressure tank to cylinder block gas transmission, works as pneumatic motor
Rotating speed and/or load be more than predetermined value when, controller control switching device be switched to pressure pan to cylinder block gas transmission；
Piston component includes the piston rod of piston head and set rod-type, and piston rod includes outer bar and interior bar, and interior bar is sleeved on outer bar
It is interior, there are a gap between the outer end of interior bar and the inner end of outer bar, be equipped with buffer in gap, one end of buffer with
The outer end of interior bar is fixedly connected, and the inner end of the other end and outer bar abuts against, and buffer includes being filled out in shell and shell flexible
The magnetorheological fluid filled；
The form of electromagnet is made in interior bar, i.e.,：Interior bar is the core made of ferrous metal, and the stage casing of interior bar has recess portion,
Conductor wire is wound in recess portion, the size in the magnetic field that interior bar generates is adjusted by the turn on angle of conductor wire, the magnetic current in buffer
The damping property of itself can be changed under the magnetic fields of interior bar by becoming liquid；
Controller is configured as：
When Sensor monitoring to the rotating speed of single cylinder pneumatic motor and/or load are more than predetermined value, controller first controls connection
Conductor wire simultaneously adjusts the turn on angle of conductor wire to change the size in magnetic field caused by interior bar, and the damping of magnetorheological fluid is made to become smaller,
The cushion performance of buffer becomes larger, and after delay scheduled time, controller controls switching device and is switched to pressure pan to cylinder cylinder again
Body gas transmission, to which in the pressure increased moment of output gas, outer bar makes outer bar be obtained in gap in the case where stress is uprushed
Ensure the stabilization of the output of piston rod to the cushioning effect of bigger to keep the force stability of interior bar unaffected；It is sensing
When device monitors that the rotating speed of single cylinder pneumatic motor and/or load drop to predetermined value or less, controller control disconnects conductor wire, and interior bar is not
Magnetic field is generated, so that the damping of magnetorheological fluid is restored to initial value, and control switching device simultaneously and be switched to low-pressure tank to cylinder cylinder
Body gas transmission.
The beneficial effects of the invention are as follows：Pneumatic motor can adjust air source output pressure according to operating condition, and become in air pressure
The fluctuation for reducing the stress of piston when change, improves the operation stability of piston and pneumatic motor entirety.
Description of the drawings
Fig. 1 shows the structural schematic diagram of single cylinder pneumatic motor；
Fig. 2 shows the structural schematic diagrams of piston rod；
Fig. 3 shows the structural schematic diagram of interior bar.
Specific implementation mode
1-3 with reference to the accompanying drawings, the function that the structure of this system is described in detail and is realized.
Single cylinder pneumatic motor comprising compressed gas source container 1, cylinder block 2, piston component 3, compressed gas source container 1 include
Low-pressure tank 1-1 and pressure pan 1-2, piston component 3 is under the action of the output gas of compressed gas source container 1 in cylinder block 2
It moves back and forth；
It further includes,
Switching device 4, for control valve in the output gas circuit of low-pressure tank 1-1 and pressure pan 1-2, for selection or
Switch one of low-pressure tank 1-1 or pressure pan 1-2 as the air source to 2 output gas of cylinder block；
Sensor 5, the rotating speed for monitoring single cylinder pneumatic motor and/or load；
Controller 6, the operation of the data control switching device 4 for being monitored according to sensor 5, when single cylinder pneumatic motor
Rotating speed and/or load be when being less than predetermined value, and controller 6 controls switching device 4 and selects low-pressure tank 1-1 to cylinder block gas transmission,
When the rotating speed of pneumatic motor and/or load are more than predetermined value, controller 6 controls switching device 4 and is switched to pressure pan 1-2 to cylinder
Cylinder body gas transmission；
Piston component 3 includes piston head 7 and covers the piston rod 8 of rod-type, and piston rod 8 includes outer bar 9 and interior bar 10, interior bar 10
It is sleeved in outer bar 9, there are a gap between the outer end and the inner end of outer bar 9 of interior bar 10, buffer 11 is equipped in gap,
One end of buffer 11 is fixedly connected with the outer end of interior bar 10, and the other end and the inner end of outer bar 9 abut against, and buffer 11 wraps
Include the magnetorheological fluid filled in shell and shell flexible；
The form of electromagnet is made in interior bar 10, i.e.,：Interior bar is the core made of ferrous metal, and the stage casing of interior bar has recess portion
12, it is wound with conductor wire 13 in recess portion 12, the turn on angle that the size in the magnetic field that interior bar 10 generates passes through conductor wire 13 is adjusted, buffering
Magnetorheological fluid in device 11 can change the damping property of itself under the magnetic fields of interior bar 10；
Controller 6 is configured as：
When sensor 5 monitors that the rotating speed of single cylinder pneumatic motor and/or load are more than predetermined value, controller 6 is first controlled and is connect
Admittance electric wire 13 simultaneously adjusts the turn on angle of conductor wire 13 to change the size in magnetic field caused by interior bar 10, makes the resistance of magnetorheological fluid
Buddhist nun becomes smaller, and the cushion performance of buffer 11 becomes larger, and after delay scheduled time, controller 6 controls switching device 4 and is switched to high pressure again
Tank 1-2 is to cylinder block gas transmission, to which in the pressure increased moment of output gas, outer bar 9 makes in the case where stress is uprushed
Outer bar 9 obtains the cushioning effect of bigger in gap, to keep the force stability of interior bar 10 unaffected, ensures piston rod 3
Output stabilization；When sensor 5 monitors that the rotating speed of single cylinder pneumatic motor and/or load drop to predetermined value or less, controller 6
Control disconnects conductor wire 13, and interior bar 10 does not generate magnetic field, the damping of magnetorheological fluid is made to restore to initial value, and controls switching simultaneously
Device 4 is switched to low-pressure tank 1-1 to cylinder block gas transmission.
One skilled in the art would recognize that without departing substantially from the spirit and scope of the invention as describing in general manner,
Various variations and/or modification can be carried out to invention shown in each specific embodiment.Therefore, in terms of all
For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature
Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent
It is explicitely stated in claim or each embodiment here.
Claims (2)
1. a kind of single cylinder pneumatic motor adjusts the output pressure of air source according to operating condition, which is characterized in that piston has buffering
Mechanism, the fluctuation for reducing piston stress, provides operation stability.
2. a kind of single cylinder pneumatic motor comprising compressed gas source container, cylinder block, piston component, compressed gas source container include low
Pressure tank and pressure pan, piston component move back and forth under the action of the output gas of compressed gas source container in cylinder block；
It is characterized in that,
Switching device is the control valve in the output gas circuit of low-pressure tank and pressure pan, for selecting or switching low-pressure tank
Or one of pressure pan is as the air source to cylinder block output gas；
Sensor, the rotating speed for monitoring single cylinder pneumatic motor and/or load；
Controller, for being arrived according to Sensor monitoring data control switching device operation, when single cylinder pneumatic motor rotating speed and/
Or load, when being less than predetermined value, controller controls switching device and selects low-pressure tank to cylinder block gas transmission, when single cylinder pneumatic motor
Rotating speed and/or load be more than predetermined value when, controller control switching device be switched to pressure pan to cylinder block gas transmission；
Piston component includes the piston rod of piston head and set rod-type, and piston rod includes outer bar and interior bar, and interior bar is sleeved in outer bar, interior
There are a gap between the outer end of bar and the inner end of outer bar, buffer, one end of buffer and interior bar are equipped in gap
Outer end be fixedly connected, the inner end of the other end and outer bar abuts against, and buffer includes filling in shell and shell flexible
Magnetorheological fluid；
The form of electromagnet is made in interior bar, i.e.,：Interior bar is the core made of ferrous metal, and the stage casing of interior bar has recess portion, recess portion
It is inside wound with conductor wire, the size in the magnetic field that interior bar generates is adjusted by the turn on angle of conductor wire, the magnetorheological fluid in buffer
The damping property of itself can be changed under the magnetic fields of interior bar；
Controller is configured as：
When Sensor monitoring to the rotating speed of single cylinder pneumatic motor and/or load are more than predetermined value, it is conductive that controller first controls connection
Line simultaneously adjusts the turn on angle of conductor wire to change the size in magnetic field caused by interior bar, and the damping of magnetorheological fluid is made to become smaller, buffering
The cushion performance of device becomes larger, and after delay scheduled time, controller controls switching device again, and to be switched to pressure pan defeated to cylinder block
Gas, to which in the pressure increased moment of output gas, outer bar makes outer bar be obtained more in gap in the case where stress is uprushed
Big cushioning effect ensures the stabilization of the output of piston rod to keep the force stability of interior bar unaffected；It is supervised in sensor
It measures the rotating speed of single cylinder pneumatic motor and/or when load drops to predetermined value or less, controller control disconnects conductor wire, and interior bar does not generate
Magnetic field makes the damping of magnetorheological fluid restore to initial value, and controls switching device to be simultaneously switched to low-pressure tank defeated to cylinder block
Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810209440.6A CN108533324A (en) | 2018-03-14 | 2018-03-14 | A kind of single cylinder pneumatic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810209440.6A CN108533324A (en) | 2018-03-14 | 2018-03-14 | A kind of single cylinder pneumatic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108533324A true CN108533324A (en) | 2018-09-14 |
Family
ID=63483833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810209440.6A Pending CN108533324A (en) | 2018-03-14 | 2018-03-14 | A kind of single cylinder pneumatic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533324A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034612A (en) * | 1988-01-26 | 1989-08-09 | 王玉成 | Elastic link of internal-combustion engine |
| CN1851260A (en) * | 2005-12-30 | 2006-10-25 | 陈志新 | On-board engine using compressed air as power |
| CN203641377U (en) * | 2014-01-14 | 2014-06-11 | 株洲时代新材料科技股份有限公司 | Straight magneto-rheological damper with adjustable damping force |
-
2018
- 2018-03-14 CN CN201810209440.6A patent/CN108533324A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034612A (en) * | 1988-01-26 | 1989-08-09 | 王玉成 | Elastic link of internal-combustion engine |
| CN1851260A (en) * | 2005-12-30 | 2006-10-25 | 陈志新 | On-board engine using compressed air as power |
| CN203641377U (en) * | 2014-01-14 | 2014-06-11 | 株洲时代新材料科技股份有限公司 | Straight magneto-rheological damper with adjustable damping force |
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Application publication date: 20180914 |
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| WD01 | Invention patent application deemed withdrawn after publication |