CN107091118A - The air motor of pneumatic tool - Google Patents
The air motor of pneumatic tool Download PDFInfo
- Publication number
- CN107091118A CN107091118A CN201610089332.0A CN201610089332A CN107091118A CN 107091118 A CN107091118 A CN 107091118A CN 201610089332 A CN201610089332 A CN 201610089332A CN 107091118 A CN107091118 A CN 107091118A
- Authority
- CN
- China
- Prior art keywords
- blade
- flat segments
- blade groove
- air motor
- rotating shaft
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F01C1/3441—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F01C1/3442—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention is on a kind of air motor of pneumatic tool, it includes a cylinder, one rotating shaft and multiple blades, multiple blade grooves are radially arranged with the rotating shaft, each blade is removably received in blade groove, the blade of at least half quantity stretches into the lateral margin of blade groove with a linear flat segments again, and it is convexly equipped with a lug being square in flat segments middle, at least the shape of the blade groove of half quantity is corresponding with having the shape of flat segments blade again, and those blade groove root edges also form the straight line flat segments of a corresponding blade flat segments, the square-shaped recess of lug on blade can be housed relatively by being arranged with one in each blade groove flat segments middle, and air chamber quantity can be increased by thus constituting one kind, to reduce air consumption, and lift the air motor of the pneumatic tool of operating efficiency.
Description
Technical field
The present invention is on a kind of pneumatic tool, espespecially a kind of air motor of pneumatic tool.
Background technology
Gases at high pressure are mainly directed in an air motor by existing pneumatic tool, to be taken offence using gases at high pressure band
Dynamic revolution, to be further driven to instrument rotation, please refer to Fig. 9 to Figure 11, and existing air motor is mainly wrapped
Containing a cylinder 50, a rotating shaft 60 and multiple blades 70, the cylinder 50 includes an air inlet 51 and a gas outlet 52, the air inlet
Mouth 51 is connected to a high pressurized gas, and the rotating shaft 60 is rotationally placed in cylinder 50, and rotating shaft 60 is in inclined with respect to cylinder 50
The heart is set, and is radially arranged with multiple blade grooves 62 in the periphery of rotating shaft 60, each blade 70 is removably received each blade groove respectively
In 62, after air-compressed gas is imported in cylinder 50 by the air inlet 51 of cylinder, gases at high pressure can be by promoting blade 70 and band
Dynamic rotating shaft 60 is rotated, and then exports power.
However, the curved curve in existing 70 1 lateral margin of blade 72, therefore the bottom 622 of each blade groove 62 of rotating shaft 60 is also relative
Shape in curved surface, therefore rotating shaft 60 can be thinning because of the setting of blade groove 62 close to axis part thickness, and because in air motor
In motion process, rotating shaft 60 can be by sizable load strength close to axis part, therefore the axis part thickness of rotating shaft 60 is thinning
It will weaken the overall construction intensity of rotating shaft 60, and make rotating shaft 60 easily damaged, and then reduce the air motor overall use longevity
Life, therefore existing air motor is mostly provided only with six blades 70, and six air chambers will be distinguished into cylinder 50, to provide foot
Enough torsion is moved with drive shaft 60 and tool part, and maintains the structural strength of rotating shaft 60, but in this way, each gas in cylinder 50
Room is respectively provided with suitable volume, therefore it is more to the gases at high pressure needed for promoting blade 60 to input each air chamber, in gases at high pressure
Use on slightly dislike and wasting, and its torsion provided can also limit.
If also, increasing the quantity of air chamber in the way of increasing the quantity of blade 70, and the volume of each air chamber is reduced, to reduce
The air consumption of gases at high pressure, to lift the torsion that air motor is exported, but the increase of the quantity of blade 70 will further make rotating shaft
60 become thinner close to the thickness of shaft core position, the structural strength of rotating shaft 60 is more weakened, and can not bear high capacity, and are easy to
Damage, instead can therefore reduce the overall service life of air motor.
The content of the invention
Therefore, the present inventor is in view of existing Pneumatic motor structure and using upper deficiency and missing, and spy is by continuous
Experiment and research, developing finally a kind of can solve the present invention of existing issue.
The purpose of the present invention, is to provide a kind of air motor of pneumatic tool, it can effectively increase the quantity of air chamber,
To reduce the air consumption of gases at high pressure, to lift the torsion that air motor is provided, and the structural strength of rotating shaft is maintained, to reach
Lift the purpose of air motor integrated operation efficiency.
For up to above-mentioned purpose, the present invention provides a kind of air motor of pneumatic tool, and it includes：
One cylinder, the cylinder is provided with an air inlet and a gas outlet；
One rotating shaft, the rotating shaft can be rotatably arranged in cylinder, and multiple blade grooves are radially arranged with the rotating shaft；
Multiple blades, respectively the blade movably can be placed in blade groove, respectively a lateral margin of the blade is placed in corresponding
Blade groove in, another lateral margin is then exposed to outside blade groove, wherein：
The lateral margin that the blade of at least half quantity stretches into blade groove has a linear flat segments, the flat segments middle
A lug being square is convexly equipped with, at least shape of the blade groove of half quantity is corresponding with having the shape of flat segments blade, and
Those blade groove root edges also form the straight line flat segments of a corresponding blade flat segments, are arranged with each blade groove flat segments middle
One can house the square-shaped recess of lug on blade relatively.
It is preferred that, in the blade that more than six are provided with the rotating shaft.
It is preferred that, in being provided with 12 blades in the rotating shaft.
It is preferred that, the length of the lug of the blade of each tool flat segments is less than 1/3rd of the vane overall length degree.
It is preferred that, the blade groove quantity of tool flat segments is the half of all blade groove quantity.
It is preferred that, the blade groove of tool flat segments is set in distance with not having the blade groove of flat segments.
It is preferred that, do not have the curved curve recess of blade groove bottom of flat segments, the blade for not having flat segments is stretched into and do not had
The lateral margin shape in curved surface of the blade groove of flat segments.
It is preferred that, the rotating shaft is in eccentric setting with respect to cylinder.
By above-mentioned technological means, the flat segments that the present invention can be formed using blade and blade groove are whole to improve rotating shaft
The structural strength of body, suitably to increase the quantity that blade and blade groove are set, to increase the quantity of air chamber in cylinder, with
Reduction air consumption is reached, and lifts air motor running efficiency and effect of outputting torsion.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein,
Fig. 1 is the stereo appearance figure of the present invention.
Fig. 2 is the three-dimensional exploded view of first embodiment of the invention.
Fig. 3 is the end pseudosection of first embodiment of the invention.
Fig. 4 is the end pseudosection of second embodiment of the invention.
Fig. 5 is the side cutaway view of second embodiment of the invention rotating shaft.
Fig. 6 is end pseudosection of the second embodiment of the invention rotating shaft along the A-A cutting lines in Fig. 5.
Fig. 7 is end pseudosection of the second embodiment of the invention rotating shaft along the B-B cutting lines in Fig. 5.
Fig. 8 is the side cutaway view of third embodiment of the invention rotating shaft.
Fig. 9 is the three-dimensional exploded view of existing air motor.
Figure 10 is the side cutaway view of existing air motor rotating shaft.
Figure 11 is the end pseudosection of existing air motor.
Drawing reference numeral explanation：
The air inlet of 10 cylinder 11
The rotating shaft of 12 gas outlet 20
22nd, the flat segments of 22A blade grooves 222
The blade of 224 recess 30
The lug of 32 flat segments 34
The air inlet of 50 cylinder 51
The rotating shaft of 52 gas outlet 60
The bottom of 62 blade groove 622
The lateral margin of 70 blade 72
Embodiment
The present invention is on a kind of air motor of pneumatic tool, please refer to Fig. 1, Fig. 2 and Fig. 3, by can be seen in the figure,
The air motor of the present invention consists predominantly of a cylinder 10, a rotating shaft 20 and multiple blades 30, and the cylinder 10 is provided with an air inlet
The gas outlet 12 of mouth 11 and one, the rotating shaft 20 is rotatablely arranged in cylinder 10, and can be with respect to cylinder 10 is in bias or coaxially sets
Put, and multiple blade grooves 22 are radially arranged with the rotating shaft 20, each blade 30 is removably received in blade groove 22, each blade
30 lateral margin is placed in corresponding blade groove 22, and another lateral margin is then exposed to outside blade groove 22, and each blade 30 is stretched into
The lateral margin of blade groove 22 has a linear flat segments 32, and is convexly equipped with a lug being square in the middle of flat segments 32
34, and each lug 34 length be less than the total length of blade 30 1/3rd, and the shape of the relative vane 30 of each blade groove 22 in
The root edge of blade groove 22 also forms the straight line flat segments 222 of the correspondence flat segments 32 of blade 30, in each flat segments 222 of blade groove 22
Between place be arranged with one and can house the square-shaped recess 224 of lug 34 on blade 30 relatively.
Thus, please refer to Fig. 5 to Fig. 7, because each blade groove 22 of rotating shaft 20 is respectively provided with a linear flat segments
222, therefore can maintain rotating shaft 20 that there is suitable thickness at axle center, although rotating shaft 20 relative to the recess 224 of blade groove 22 at
Thickness can be slightly thinning, but rotating shaft 20 is relative to can still maintain enough thickness at the both sides of recess 224 of flat segments 222, therefore turns
Axle 20 can keep good structural strength, therefore can suitably increase the quantity of blade groove 22 and set blade 30, Yi Benfa
The blade for there are more than six can be set in the result of bright actual experiment, the rotating shaft 20 of air motor of the present invention, preferably, it can set
The blade of 10 or 12 is equipped with, as shown in figure 4, its rotating shaft 20 can still possess quite good structural strength.
Therefore, air motor of the invention can increase the quantity of air chamber in cylinder 10, and it is relative reduce each air chamber needed for
Gases at high pressure, and the amount that each gas is discharged by gas outlet is reduced, to reduce air consumption during air motor operation, and height can be made
Body of calming the anger can fully promote blade 30 to drive rotating shaft 20 to rotate, further to lift the torsion that air motor is exported, to carry
Rise the overall operation efficiency of air motor.
Please refer to Fig. 8, by can be seen in the figure, the bottom surface of this case partial blade groove 22 can have flat segments 222, and other
Partial blade groove 22A bottom surfaces can curved curve recess, the blade for not having flat segments stretches into the blade groove 22A for not having flat segments
Lateral margin shape in curved surface, thus each blade groove 22, blade groove 22A can be respectively cooperating with have flat segments 32 blade 30 or lateral margin shape
Into the blade of curve form, to coordinate different use demands, in addition, the quantity of blade groove 22 of tool flat segments 222 is all leaves
The half of film trap 22, blade groove 22A quantity, and tool flat segments 222 blade groove 22 and do not have flat segments blade groove 22A be between
Every setting.
As shown in the above, different modifications and changes can not depart from the spiritual and novel concept of essence of the invention
Reached under scope, and the invention discloses specific embodiment and be not used to the limitation present invention, this disclosure includes
The all modifications fallen under the scope of right.
Claims (10)
1. a kind of air motor of pneumatic tool, it includes：
One cylinder, the cylinder is provided with an air inlet and a gas outlet；
One rotating shaft, the rotating shaft can be rotatably arranged in cylinder, and multiple blade grooves are radially arranged with the rotating shaft；
Multiple blades, respectively the blade movably can be placed in blade groove, respectively a lateral margin of the blade is placed in corresponding leaf
In film trap, another lateral margin is then exposed to outside blade groove, it is characterised in that：
The lateral margin that the blade of at least half quantity stretches into blade groove has a linear flat segments, the flat segments middle projection
There is a lug being square, at least shape of the blade groove of half quantity is corresponding with having the shape of flat segments blade, and those
Blade groove root edge also forms the straight line flat segments of a corresponding blade flat segments, and an energy is arranged with each blade groove flat segments middle
The square-shaped recess of lug on blade is housed relatively.
2. the air motor of pneumatic tool as claimed in claim 1, it is characterised in that in being provided with more than six in the rotating shaft
Blade.
3. the air motor of pneumatic tool as claimed in claim 2, it is characterised in that in being provided with 12 leaves in the rotating shaft
Piece.
4. the air motor of the pneumatic tool as described in any one of claims 1 to 3, it is characterised in that the leaf of each tool flat segments
The length of the lug of piece is less than 1/3rd of the vane overall length degree.
5. the air motor of pneumatic tool as claimed in claim 4, it is characterised in that the blade groove quantity of tool flat segments is institute
There is the half of blade groove quantity.
6. the air motor of pneumatic tool as claimed in claim 5, it is characterised in that the blade groove of tool flat segments is flat with not having
The blade groove of straight section is set in distance.
7. the air motor of pneumatic tool as claimed in claim 6, it is characterised in that the blade groove bottom for not having flat segments is in
Arc-shaped curved surface is recessed, and the blade for not having flat segments stretches into the lateral margin shape in curved surface for the blade groove for not having flat segments.
8. the air motor of pneumatic tool as claimed in claim 5, it is characterised in that the blade groove bottom for not having flat segments is in
Arc-shaped curved surface is recessed, and the blade for not having flat segments stretches into the lateral margin shape in curved surface for the blade groove for not having flat segments.
9. the air motor of the pneumatic tool as described in any one of claims 1 to 3, it is characterised in that do not have the leaf of flat segments
The curved curve recess of piece groove bottom, the blade for not having flat segments stretches into the lateral margin shape in curved surface for the blade groove for not having flat segments
Shape.
10. the air motor of the pneumatic tool as described in any one of claims 1 to 3, it is characterised in that the rotating shaft is with respect to cylinder
In eccentric setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089332.0A CN107091118B (en) | 2016-02-17 | 2016-02-17 | Pneumatic motor for pneumatic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089332.0A CN107091118B (en) | 2016-02-17 | 2016-02-17 | Pneumatic motor for pneumatic tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091118A true CN107091118A (en) | 2017-08-25 |
| CN107091118B CN107091118B (en) | 2020-08-04 |
Family
ID=59648664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610089332.0A Active CN107091118B (en) | 2016-02-17 | 2016-02-17 | Pneumatic motor for pneumatic tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107091118B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS502781B1 (en) * | 1970-08-15 | 1975-01-29 | ||
| JPS543257Y2 (en) * | 1972-07-28 | 1979-02-14 | ||
| CN1056149A (en) * | 1990-04-21 | 1991-11-13 | 陈志远 | A kind of new architecture of power machine with rolling rotor |
| US5470215A (en) * | 1994-08-26 | 1995-11-28 | Rineer Hydraulics, Inc. | Wear resistant vane-type fluid power converter |
| CN2421439Y (en) * | 2000-04-03 | 2001-02-28 | 尹钢 | High-rotary motor |
| CN1926366A (en) * | 2004-03-01 | 2007-03-07 | Zf腓特烈港股份公司 | Sealing device for a radial swivel motor |
| CN101182844A (en) * | 2007-12-12 | 2008-05-21 | 李东林 | Sliding blade and air cylinder together circle center type rotary compressor |
| US20130202470A1 (en) * | 2012-02-08 | 2013-08-08 | Shining Golden Yida Welding & Cutting Machinery Manufacture Ltd. | Rotary Vane Air Motor with Improved Vanes and Other Improvements |
-
2016
- 2016-02-17 CN CN201610089332.0A patent/CN107091118B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS502781B1 (en) * | 1970-08-15 | 1975-01-29 | ||
| JPS543257Y2 (en) * | 1972-07-28 | 1979-02-14 | ||
| CN1056149A (en) * | 1990-04-21 | 1991-11-13 | 陈志远 | A kind of new architecture of power machine with rolling rotor |
| US5470215A (en) * | 1994-08-26 | 1995-11-28 | Rineer Hydraulics, Inc. | Wear resistant vane-type fluid power converter |
| CN2421439Y (en) * | 2000-04-03 | 2001-02-28 | 尹钢 | High-rotary motor |
| CN1926366A (en) * | 2004-03-01 | 2007-03-07 | Zf腓特烈港股份公司 | Sealing device for a radial swivel motor |
| CN101182844A (en) * | 2007-12-12 | 2008-05-21 | 李东林 | Sliding blade and air cylinder together circle center type rotary compressor |
| US20130202470A1 (en) * | 2012-02-08 | 2013-08-08 | Shining Golden Yida Welding & Cutting Machinery Manufacture Ltd. | Rotary Vane Air Motor with Improved Vanes and Other Improvements |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107091118B (en) | 2020-08-04 |
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