CN102877889A - Blade type pneumatic motor - Google Patents
Blade type pneumatic motor Download PDFInfo
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- CN102877889A CN102877889A CN2012104288521A CN201210428852A CN102877889A CN 102877889 A CN102877889 A CN 102877889A CN 2012104288521 A CN2012104288521 A CN 2012104288521A CN 201210428852 A CN201210428852 A CN 201210428852A CN 102877889 A CN102877889 A CN 102877889A
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- air outlet
- pneumatic motor
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Abstract
The invention discloses a blade type pneumatic motor. A rotor is arranged in a stator accommodating chamber, and is provided with blade slots arranged therein; blades are connected with the blade slots; the rotor and the stator are eccentrically arranged; no more than 4 blades are arranged, the width of each blade is less than 31 mm, and the thickness of each blade is less than 4.8 mm; an air inlet and an air outlet are formed in the stator; the air inlet includes at least 8 air inlet holes; the distance angle between every two air inlet holes is at least 15 degrees; the air outlet includes at least 5 air outlet holes; and the distance angle between every two air outlet holes is not more than 15 degrees. Through the manner, under the premise that the total mass of the rotor of the blade type pneumatic motor is guaranteed, the pneumatic motor provided by the invention avoids the factor of poor dynamic balance of the rotor, absolutely guarantees the dynamic balance of the rotor, improves the shaft output of the pneumatic motor and product performance, saves the processing cost, and improves the economic benefits.
Description
Technical field
The present invention relates to the Pneumatic water pump field, particularly relate to a kind of pneumatic vane motor.
Background technique
Pneumatic motor is that coal industry is brought into use in the explosion-proof chemical plant and progressively grown up with needing in the colliery that produces easily explosive gas as water pump prime mover.The rotary vane pneumatic motor is that positive displacement pneumatic motor a kind of has the unexistent advantageous characteristic of other prime mover such as motor, internal-combustion engine.Under the condition of easily on fire, explosive, easy-to-rust, namely in place that inflammable gas occurs, the place work of swimming in the place that moisture is too much, corrosive material is not because pneumatic motor produces spark and high temperature heating, therefore it is not subjected to the like that strict restriction of other prime mover, do not need the expense of the such anti-explosion mechanism of flower motor, the output power of unit weight and volume is all large than other prime mover, therefore, the water pump that uses pneumatic motor to make can be done to such an extent that volume is little, and is lightweight.When overloading, rotational speed is descended, even shut down, in case when the overload removal, motor just can start again, the unlikely machine that burns.Fast (instantaneous) starting with shut down, by the cooling that the adiabatic expansion of air produces, pneumatic motor can be controlled the frictional heating of each motive position, can be from blowdown firing.There is load running more more favourable than no-load running from the cooling angle.No matter the mounting point is level or vertically all right.So pneumatic motor has long history, pass through again all improvement, that therefore can do is sturdy and durable reliable, easy to maintenance.
But pneumatic motor needs the costs of equipment such as air compressing, and the equipment operation and maintenance cost is also high than other prime mover, is 2 times of common motor, and capacity usage ratio is lower than other prime mover.So the requirement of pendulum in face of the artificer is to develop (that is to say under equal cylinder inside/outside diameter size height condition) under the much compression air mass flow prerequisite, carry out unique rotor design, the physical dimension of rotor is designed in the lit range, improve the throw of eccentric of pneumatic motor, increase the area of the outstanding rotor of blade.Because many institutes, the pressure difference of blade produced before and after the moment of torsion of pneumatic vane motor acted on, be created in the moment of torsion of output shaft, follow the blade area of releasing in the rotor, pressure difference and moment of torsion radius (releasing the distance at part center from the rotor center to the blade) are directly proportional, so want to strengthen output torque, as long as strengthen these parameters.
Throw of eccentric is the important means that the blade gas motor can change the J compressed air pressure into mechanical energy, in the identical situation of cylinder inside/outside diameter size, height and other conditions, throw of eccentric is larger, engine output is larger, but the outstanding area one of blade strengthens, with regard to producing some problems that seal between blade and the cylinder, if seal inappropriate, leakage loss will increase, and efficient will descend.As add the outstanding area of high pulling torque radius and blade, and must strengthen cylinder bore diameter, so, it is large that the peripheral velocity of blade becomes, and the wearing and tearing of blade are accelerated, and the life-span reduces.Lubricating status is bad between blade and the blade groove, and the frictional force of this part is also larger than the power of releasing blade, can cause the phenomenon of blade and stator gap, and cause internal leakage, and efficient also can descend.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of pneumatic vane motor, can energy-saving and emission-reduction, reduce labor intensity, and lower cost of production, improve air horsepower.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of pneumatic vane motor is provided, comprise: stator, rotor, blade, described rotor is located in the described stator cavity volume, described rotor is provided with blade groove, described blade is connected with described blade groove, be set for the eccentric between described stator and the rotor, the quantity of described blade is less than or equal to 4, width is 31mm at least, thickness is 4.8mm at least, offer suction port and air outlet on the described stator, described suction port comprises at least 8 inlet holes, at least 15 ° of the interval angles between described each inlet hole, described air outlet comprises at least 5 air outlet holes, and the interval angle between described each air outlet hole is less than or equal to 15 °.
In a preferred embodiment of the present invention, the eccentric distance between described stator and the rotor is 9mm.
In a preferred embodiment of the present invention, described diameter of stator bore is 90mm, and described root diameter is 72mm.
In a preferred embodiment of the present invention, described blade quantity is 4.
In a preferred embodiment of the present invention, described width of blade is 31mm, and thickness is 4.8mm.
The invention has the beneficial effects as follows: pneumatic vane motor of the present invention can be guaranteed under the prerequisite of pneumatic vane motor rotor gross mass, removed the technique of epitrochanterian brill lightening core, avoided the factor of rotor dynamic balancing poor performance, the absolute dynamic balancing that guarantees rotor, increased the air horsepower of pneumatic motor, improve product performance, saved processing cost, improved economic benefit.
Description of drawings
Fig. 1 is the structural representation of pneumatic vane motor one preferred embodiment of the present invention;
The mark of each parts is as follows in the accompanying drawing: 1, stator, 2, rotor, 3, blade, 4, inlet hole, 5, air outlet hole.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
See also Fig. 1, the embodiment of the invention comprises:
A kind of pneumatic vane motor comprises: stator 1, rotor 2, blade 3, described rotor are located in described stator 1 cavity volume, and described rotor 2 is provided with blade groove, and described blade 3 is connected with described blade groove.
Described stator 1 internal diameter is 90mm, and described rotor 2 diameters are 72mm.Be set for the eccentric between described stator 1 and the rotor 2.Eccentric distance between described stator 1 and the rotor 2 is 9mm.
In like product, in the constant situation of stator 1 internal diameter, existing rotor 2 diameters are 74mm, in the design limit scope, dwindled rotor 2 diameters, the present invention is designed to 72mm with it, throw of eccentric between prior art stator 1 and the rotor 2 is 8mm, the present invention is increased to 9mm with it, has increased the air horsepower of pneumatic motor, has greatly promoted product performance and has saved processing cost.
The quantity of described blade 3 is less than or equal to 4, and the quantity of preferred structure Leaf 3 of the present invention is 4, and its width equals 31mm, and thickness equals 4.8mm.Than prior art, removed the brill lightening core on the rotor 2, guaranteed the gross mass of rotor 2, quantitatively be reduced to 4 at blade 3, increased the volume between the adjacent blades 3, can reach rotor 2 dynamically balanced requirements fully.
Offer suction port and air outlet on the described stator 1, described suction port comprises at least 8 inlet holes 4, at least 15 ° of interval angles between described each inlet hole 4, described air outlet comprises at least 5 air outlet holes 5, the interval angle between described each air outlet hole 5 is less than or equal to 15 °.
The present invention has readjusted position and the angle of cylinder intake and exhaust, strengthen inlet hole 4, reduce suction pressure, reduce the moment leakage, make blade 3 areas of releasing from rotor 2, pressure difference and moment of torsion radius are proportional, reach larger in suction port moment working room, expansion ratio is larger, and the amount of work of pneumatic motor is just larger.
Table 1: the pneumatic submersible pump data of coal industry standard MT/T315-92 middle period chip
Table 2: the data of the pneumatic submersible pump of blade type of the present invention
Listed flow, lift, efficient are the design point values during take the normal temperature clear water as medium in the table.
Data Comparison by table 1 and table 2, can find out that the overall efficiency after the improvement has surpassed the former design of MT/T315-92 standard more than 50%, with the submersible electrical water pump contrast with power, it is lightweight that the pneumatic submersible pump of blade type has reached complete machine, movement, maintaining are conveniently, efficient has also surpassed electric pump, and is safe and reliable.
Pneumatic vane motor of the present invention can be guaranteed under the prerequisite of pneumatic vane motor rotor 2 gross masses, removed the technique of the brill lightening core on the rotor 2, avoided the poor factor of rotor 2 dynamic balance performances, the absolute dynamic balancing that guarantees rotor 2, increased the air horsepower of pneumatic motor, improve product performance, saved processing cost, improved economic benefit.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. pneumatic vane motor, it is characterized in that, comprise: stator, rotor, blade, described rotor is located in the described stator cavity volume, described rotor is provided with blade groove, described blade is connected with described blade groove, be set for the eccentric between described stator and the rotor, the quantity of described blade is less than or equal to 4, and width is 31mm at least, thickness is 4.8mm at least, offer suction port and air outlet on the described stator, described suction port comprises at least 8 inlet holes, at least 15 ° of the interval angles between described each inlet hole, described air outlet comprises at least 5 air outlet holes, and the interval angle between described each air outlet hole is less than or equal to 15 °.
2. pneumatic vane motor according to claim 1 is characterized in that, the eccentric distance between described stator and the rotor is 9mm.
3. pneumatic vane motor according to claim 1 is characterized in that, described diameter of stator bore is 90mm, and described root diameter is 72mm.
4. pneumatic vane motor according to claim 1 is characterized in that, described blade quantity is 4.
5. pneumatic vane motor according to claim 1 is characterized in that, described width of blade is 31mm, and thickness is 4.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104288521A CN102877889A (en) | 2012-11-01 | 2012-11-01 | Blade type pneumatic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104288521A CN102877889A (en) | 2012-11-01 | 2012-11-01 | Blade type pneumatic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102877889A true CN102877889A (en) | 2013-01-16 |
Family
ID=47479379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104288521A Pending CN102877889A (en) | 2012-11-01 | 2012-11-01 | Blade type pneumatic motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102877889A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259502A (en) * | 1994-03-22 | 1995-10-09 | Uriyuu Seisaku Kk | Air motor in air tool |
| US7255546B1 (en) * | 2004-04-30 | 2007-08-14 | The Anspach Effort, Inc. | Spindle for a vane motor |
| JP2008183630A (en) * | 2007-01-26 | 2008-08-14 | Shinwa Cho | Motor part structure of air tool |
| US20090016918A1 (en) * | 2005-06-09 | 2009-01-15 | Atlas Copco Tools Ab | Pneumatic vane motor with by- pass means |
| CN201448250U (en) * | 2009-06-30 | 2010-05-05 | 王辉 | Pneumatic sewage and sand discharge submerged pump |
| CN202500784U (en) * | 2012-03-02 | 2012-10-24 | 常州窦氏气动机械有限公司 | Oil-free pneumatic water pump |
| CN202866900U (en) * | 2012-11-01 | 2013-04-10 | 窦敏江 | Pneumatic vane motor |
-
2012
- 2012-11-01 CN CN2012104288521A patent/CN102877889A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259502A (en) * | 1994-03-22 | 1995-10-09 | Uriyuu Seisaku Kk | Air motor in air tool |
| US7255546B1 (en) * | 2004-04-30 | 2007-08-14 | The Anspach Effort, Inc. | Spindle for a vane motor |
| US20090016918A1 (en) * | 2005-06-09 | 2009-01-15 | Atlas Copco Tools Ab | Pneumatic vane motor with by- pass means |
| JP2008183630A (en) * | 2007-01-26 | 2008-08-14 | Shinwa Cho | Motor part structure of air tool |
| CN201448250U (en) * | 2009-06-30 | 2010-05-05 | 王辉 | Pneumatic sewage and sand discharge submerged pump |
| CN202500784U (en) * | 2012-03-02 | 2012-10-24 | 常州窦氏气动机械有限公司 | Oil-free pneumatic water pump |
| CN202866900U (en) * | 2012-11-01 | 2013-04-10 | 窦敏江 | Pneumatic vane motor |
Non-Patent Citations (2)
| Title |
|---|
| 李富成: "单向偏心叶片式气动马达主要参数的设计计算", 《凿岩机械与风动工具》, no. 2, 30 June 1985 (1985-06-30) * |
| 李富成: "叶片式气动马达叶片接触强度计算", 《凿岩机械气动工具》, 31 March 1996 (1996-03-31) * |
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| PB01 | Publication | ||
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |