CN109038942B - motor and air compressor with same - Google Patents
motor and air compressor with same Download PDFInfo
- Publication number
- CN109038942B CN109038942B CN201810639525.8A CN201810639525A CN109038942B CN 109038942 B CN109038942 B CN 109038942B CN 201810639525 A CN201810639525 A CN 201810639525A CN 109038942 B CN109038942 B CN 109038942B
- Authority
- CN
- China
- Prior art keywords
- positioning
- column
- rotating shaft
- hole
- positioning column
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Abstract
the utility model provides a motor, includes pivot and bent axle, the bent axle is equipped with the mounting hole, the pivot penetrates the mounting hole, the bent axle still is equipped with the communicating through-hole with the mounting hole, the motor still including be used for pivot and bent axle fixed reference column mutually, with the fixed column of the coaxial setting of reference column, the surface of reference column is equipped with the external screw thread, the reference column spiro union is fixed in the through-hole and supports and press the pivot, the fixed column spiro union is fixed in the through-hole supports and presses towards the pivot the reference column. By the design, double fixation between the crankshaft and the rotating shaft is realized; the two-fixing simultaneous failure (the probability of simultaneous occurrence is far lower than that of only one type) can cause the positioning loosening failure between the crankshaft and the rotating shaft, so that the double-fixing can greatly avoid the positioning failure between the crankshaft and the rotating shaft.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a motor and an air compressor with the motor, in particular to a connecting structure of a rotating shaft and a crankshaft of the motor.
[ background of the invention ]
The motor generally includes a rotating shaft and a crankshaft, the crankshaft is fixed to the rotating shaft, the crankshaft is further connected with a driven component, and the rotating shaft rotates to generate a driving torque, so that the crankshaft drives the attached component to move. The motor is extensive to be applied to mechanical transmission field, and the fixed knot that is connected of current bent axle and pivot constructs to be: milling a plane on a rotating shaft, eccentrically locking a crankshaft on the rotating shaft by using a screw, wherein the locking force of the crankshaft and the rotating shaft is often insufficient when a motor is used for a period of time or the load is larger, the connection between the crankshaft and the rotating shaft is easy to loosen in the rotation, so that the connection between the crankshaft and the rotating shaft is failed, the rotating shaft is completely idle, the crankshaft and an attached component can not be driven to rotate, and the screw can be caused to rub and damage the rotating shaft. Thus, the present design provides a new solution.
[ summary of the invention ]
The invention aims to solve the problem of providing an air compressor which is double-fixed between a crankshaft and a rotating shaft and can inhibit positioning failure.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a motor, includes pivot and bent axle, the bent axle is equipped with the mounting hole, the pivot penetrates the mounting hole, the bent axle still is equipped with the communicating through-hole with the mounting hole, the motor still including be used for pivot and bent axle fixed reference column mutually, with the fixed column of the coaxial setting of reference column, the surface of reference column is equipped with the external screw thread, the reference column spiro union is fixed in the through-hole and supports and press the pivot, the fixed column spiro union is fixed in the through-hole supports and presses towards the pivot the reference column.
According to the design, the positioning column and the fixing column are coaxially arranged, the crankshaft is fixed with the rotating shaft by virtue of the positioning column and the fixing column, and the positioning column is screwed and fixed in the through hole and abuts against the rotating shaft, so that one-time fixation between the crankshaft and the rotating shaft is realized; the fixing column is fixed in the through hole in a threaded manner and is pressed against the positioning column towards the rotating shaft, so that double fixation between the crankshaft and the rotating shaft is realized; the two-fixing simultaneous failure (the probability of simultaneous occurrence is far lower than that of only one type) can cause the positioning loosening failure between the crankshaft and the rotating shaft, so that the double-fixing can greatly avoid the positioning failure between the crankshaft and the rotating shaft.
Preferably, the positioning column comprises a screwing part screwed with the through hole and a positioning part integrally extending from the screwing part, and the positioning part extends into the positioning opening and is positioned at the positioning opening.
Preferably, the surface of the positioning hole self-rotating shaft is recessed towards the rotating shaft, or the positioning hole penetrates through the rotating shaft.
Preferably, the positioning opening is provided with an inner bottom surface, and the tail end of the positioning column is pressed against the inner bottom surface.
Preferably, the positioning opening has an inner side surface, and the inner side surface surrounds the positioning column. So design, the reference column is injectd in encirclement that the medial surface can be better, can be with the parallel orientation post of spacing in the direction of the axis of pivot, can be again at the circumference reference column of spacing of pivot.
preferably, the positioning opening has an inner side surface, the inner side surface includes a first side surface and a second side surface which are located on opposite two sides of the positioning column and are opposite in the circumferential direction of the rotating shaft, the positioning column is partially overlapped with the first side surface in the circumferential direction of the rotating shaft, the positioning column is partially overlapped with the second side surface in the circumferential direction of the rotating shaft, and the positioning column is partially overlapped with the second side surface in the circumferential direction, and is partially overlapped with the second. The technical scheme comprises multiple situations, wherein when the positioning column is respectively attached to the first side surface and the second side surface, the positioning column can be clamped by the first side surface and the second side surface in the circumferential direction of the rotating shaft, so that the positioning column is kept stable and does not loosen in the circumferential direction of the rotating shaft; when the positioning column has gaps with the first side surface and the second side surface, even if the positioning column loosens relative to the rotating shaft, the loosened space is generated only by the gaps on the two sides, so that the loosened space is very small, and the positioning column can be still more tightly limited at the positioning opening; when the positioning column is attached to one of the first side surface and the second side surface and has a gap with the other, the positioning effect on the positioning column is between the two previous schemes (the scheme of clamping and the scheme of having gaps on both sides of the positioning column), which is not described in detail.
preferably, the motor further comprises a fixing column, the fixing column is fixed to the through hole, and the fixing column is abutted against the positioning column towards the rotating shaft. By the design, the stability of fixing the positioning column can be obviously improved, and the positioning column is prevented from loosening.
Preferably, the fixing column is fixed to the through hole in a threaded connection mode and is arranged coaxially with the positioning column.
In order to solve the technical problem, the invention further provides an air compressor, which comprises the motor.
These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of the motor of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1 (the cross-section is in the plane of the axis of the shaft and the axis of the through-hole);
FIG. 4 is a partial view of FIG. 3;
FIG. 5 is a cross-sectional view of FIG. 1 (the cross-section being in the plane of the axis of the through-hole and perpendicular to the axis of the shaft);
FIG. 6 is a schematic structural view of a crankshaft;
FIG. 7 is a schematic structural diagram of a fixing post;
Fig. 8 is a schematic structural view of the positioning post.
[ detailed description ] embodiments
the technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1 to 8, the present invention discloses a motor, the rated power of the motor is between 100w to 3000w, preferably between 200w to 1800w, the motor comprises a rotating shaft 1 and a crankshaft 2, the rotating shaft 1 rotates to generate a driving torque, and the crankshaft 2 drives the accessory components to move. The crankshaft 2 is provided with a mounting hole 20, the mounting hole 20 is eccentrically arranged on the crankshaft 2, the mounting hole 20 is coaxial with the rotating shaft 1 (namely, the axis is overlapped), and the rotating shaft 1 penetrates through the mounting hole 20. The crankshaft 2 is further provided with a through hole 21 communicated with the mounting hole 20, an axis of the through hole 21 is perpendicular to an axis of the rotating shaft 1, the through hole 21 extends from a radial outer side of the crankshaft 2 to the mounting hole 20 toward the inside of the crankshaft 2, and the through hole 21 extends along a radial direction of the crankshaft 2.
the motor further comprises a positioning column 3 used for fixing the rotating shaft 1 and the crankshaft 2, wherein part of the positioning column 3 is accommodated in the through hole 21, the positioning column 3 is fixed in the through hole 21, and external threads are arranged on the outer surface of the positioning column 3 and used for being in threaded connection with threads 210 in the through hole 21. The positioning column 3 may be a screw, and one end of the positioning column 3 is opened with a tool hole 30 for inserting a tool to rotatably screw the positioning column 3 to the through hole 21.
The rotating shaft 1 is provided with a positioning opening 4 at least partially positioned in the mounting hole 20, the positioning column 3 extends into the positioning opening 4 and is positioned at the positioning opening 4, and the positioning column 3 extends into the positioning opening 4 through the through hole 21. The positioning column 2 includes a screw-connection portion 32 screwed with the through hole 21 and a positioning portion 31 integrally extending from the screw-connection portion 32, an outer diameter of the screw-connection portion 32 is larger than an outer diameter of the positioning portion 31, and the positioning portion 31 extends into the positioning opening 4 and is positioned at the positioning opening 4. In the present embodiment, the positioning hole 4 is partially located in the mounting hole 20, and a small portion of the positioning hole 4 is located outside the mounting hole 20.
The positioning hole 4 is recessed from the surface of the rotating shaft 1 to the rotating shaft 1, in the embodiment, the cylindrical surface of the positioning hole 4 from the rotating shaft 1 is recessed towards the rotating shaft 1 (not limited by the above), the positioning hole 4 is recessed milled by a milling cutter, and the positioning hole 4 is made relative to a plane on the rotating shaft 1, and the cylindrical surface is recessed more easily and deeper. The tail end of the positioning column 3 abuts against the inner bottom surface 40 of the positioning opening 4, the inner bottom surface 40 of the positioning opening 4 is a plane, the abutting surface of the tail end of the positioning column 3 and the inner bottom surface 40 of the positioning opening 4 is a plane or a cambered surface, and the positioning part 31 abuts against the inner bottom surface 40 of the positioning opening 4 to be positioned at the positioning opening 4. In other embodiments, the positioning opening 4 can also be designed to pass through the shaft 1. The positioning opening 4 is provided with an inner side surface which surrounds the positioning column 3 and is in a closed ring shape. The inner side surface comprises a first side surface 41, a second side surface 42, a third side surface connecting the first side surface 41 and the second side surface 42, and a fourth side surface connecting the first side surface 41 and the second side surface 42, wherein the third side surface and the fourth side surface are both arc-shaped, and the third side surface and the fourth side surface are opposite to each other in a direction parallel to the axis of the rotating shaft 1; the first side surface 41 and the second side surface 42 are opposite to each other in the circumferential direction of the rotating shaft 1 (in the present invention, the circumferential direction of the rotating shaft 1 is the direction around the axis of the rotating shaft 1), and the first side surface 41 and the second side surface 42 are both flat and parallel.
In the present embodiment, one side of positioning column 3 has a gap (see fig. 5) with first side surface 41 so as to be spaced apart, the gap is smaller than 0.8mm, preferably 0.5mm, and the other opposite side of positioning column 3 has a gap (see fig. 5) with second side surface 42, the gap is smaller than 0.8mm, preferably 0.5mm, and the existence of the gap facilitates positioning column 3 to enter positioning opening 4 during assembly; the positioning column 3 can be designed to be respectively attached to the first side surface 41 and the second side surface 42; it can also be designed that one side of the positioning column 3 is attached to one of the first side surface 41 and the second side surface 42, and the other side of the positioning column 3 opposite to the first side surface 41 and the second side surface 42 has a gap; in summary, one side of positioning post 3 abuts against or has a gap with first side surface 41, and the other side of positioning post 3 abuts against or has a gap with second side surface 42.
First side 41 and second side 42 are located the both sides of reference column 3, and reference column 3 overlaps at the circumference upper portion of pivot 1 with first side 41, and reference column 3 overlaps at the circumference upper portion of pivot 1 with second side 42, so the design does benefit to first side 41 and second side 42 and limits reference column 3 on the circumference of pivot 1.
The motor still includes fixed column 5, and fixed column 5 and reference column 3 coaxial setting (axis coincidence promptly), and fixed column 5 is fixed in the through-hole 21, and the end of fixed column 5 supports and presses in reference column 3, and fixed column 5 supports and presses reference column 3 towards pivot 1, and in this embodiment, fixed column 5 supports and presses in the spiro union portion 32 of reference column 3. One end of the fixing post 5 is opened with a tool hole 50 for inserting a tool to rotatably screw the fixing post 5 to the through hole 21. The fixing column 5 is accommodated in the through hole 21 and is screwed with the thread 210 in the through hole 21. The external diameter of the screwing part 32 is equal to that of the fixed column 5, and the external thread 51 of the fixed column 5 is equal to that of the external thread 33 of the positioning column 3.
When the motor of the embodiment is assembled, the rotating shaft 1 is inserted into the mounting hole 20 and inserted to a proper position, so that the through hole 21 is opposite to the positioning hole 4; then, the positioning column 3 is screwed into the through hole 21 to a certain depth, so that the positioning part 31 extends into the positioning opening 4 and is pressed against and positioned at the positioning opening 4; thirdly, the fixing column 5 is screwed into the through hole 21 to a certain depth, so that the fixing column 5 is pressed against the screwing part 32 of the positioning column 3.
The motor is a double-head motor, and a pair of crankshafts 2, a pair of positioning columns 3 and a pair of fixing columns 5 of the motor are respectively arranged in central symmetry.
The present invention further provides an air compressor (air compressor) comprising the aforementioned motor.
While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (10)
1. The utility model provides a motor, includes pivot and bent axle, the bent axle is equipped with the mounting hole, the pivot penetrates the mounting hole, its characterized in that: the motor further comprises a positioning column and a fixing column, the positioning column is used for fixing the rotating shaft and the crankshaft, the fixing column is coaxial with the positioning column, external threads are arranged on the outer surface of the positioning column, the positioning column is fixed in the through hole in a screwed mode and abuts against the rotating shaft, the fixing column is completely located outside the mounting hole and located between the fixing column and the rotating shaft, the external threads are arranged on the outer surface of the fixing column, and the fixing column is fixed in the through hole in a screwed mode and abuts against the positioning column towards the rotating shaft.
2. The electric machine of claim 1, wherein: the positioning column comprises a screwing part in screwed connection with the through hole and a positioning part integrally extending from the screwing part, the outer diameter of the screwing part is larger than that of the positioning part, the screwing part is positioned between the fixing column and the positioning part, and the positioning part is positioned between the screwing part and the rotating shaft.
3. The electric machine of claim 1, wherein: the rated power of the motor is between 100w and 3000w, the rotating shaft is provided with a positioning opening at least partially positioned in the mounting hole, and the positioning column extends into the positioning opening and is positioned at the positioning opening.
4. the electric machine of claim 3, wherein: the positioning column comprises a screwing part in screw connection with the through hole and a positioning part integrally extending from the screwing part, the positioning part extends into the positioning opening and is positioned at the positioning opening, and the outer diameter of the screwing part is larger than that of the positioning part.
5. The electric machine of claim 3, wherein: the surface of the positioning opening self-rotating shaft is sunken towards the rotating shaft, or the positioning opening penetrates through the rotating shaft.
6. the electric machine of claim 3, wherein: the positioning opening is provided with an inner bottom surface, and the positioning column is pressed against the inner bottom surface.
7. The electric machine of claim 3, wherein: the positioning opening is provided with an inner side surface, and the inner side surface surrounds the positioning column.
8. The electric machine of claim 3, wherein: the locating hole has the medial surface, the medial surface is including being located the opposite both sides of reference column and at the first side and the second side that the circumference of pivot is relative, the reference column overlaps with first side in the circumference upper portion of pivot, the reference column pastes with first side mutually or has the clearance and looks interval, the reference column overlaps with the second side in the circumference upper portion of pivot, the reference column pastes with the second side mutually or has the clearance and looks interval.
9. The electric machine of claim 1, wherein: the fixing column is contained in the through hole and is in threaded connection with the thread in the through hole, the rotating shaft is provided with a positioning opening, the positioning opening is provided with an inner bottom surface, a first side surface and a second side surface which are located on two opposite sides of the positioning column and opposite to each other in the circumferential direction of the rotating shaft, the tail end of the positioning column is abutted against the inner bottom surface, the positioning column is partially overlapped with the first side surface in the circumferential direction of the rotating shaft, the positioning column is abutted against the first side surface, the positioning column is partially overlapped with the second side surface in the circumferential direction of the rotating shaft, and the positioning column is.
10. The utility model provides an air compressor machine which characterized in that: comprising an electric machine according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810639525.8A CN109038942B (en) | 2016-08-31 | 2016-08-31 | motor and air compressor with same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779976.2A CN106194650B (en) | 2016-08-31 | 2016-08-31 | A kind of motor and the air compressor machine with the motor |
| CN201810639525.8A CN109038942B (en) | 2016-08-31 | 2016-08-31 | motor and air compressor with same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610779976.2A Division CN106194650B (en) | 2016-08-31 | 2016-08-31 | A kind of motor and the air compressor machine with the motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109038942A CN109038942A (en) | 2018-12-18 |
| CN109038942B true CN109038942B (en) | 2019-12-13 |
Family
ID=58086588
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810639525.8A Active CN109038942B (en) | 2016-08-31 | 2016-08-31 | motor and air compressor with same |
| CN201610779976.2A Active CN106194650B (en) | 2016-08-31 | 2016-08-31 | A kind of motor and the air compressor machine with the motor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610779976.2A Active CN106194650B (en) | 2016-08-31 | 2016-08-31 | A kind of motor and the air compressor machine with the motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109038942B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5425156A (en) * | 1993-08-11 | 1995-06-20 | Strait; Steven L. | Window crank assembly |
| CN1467383A (en) * | 2002-07-08 | 2004-01-14 | 蒋亮健 | Self stepless angle adjusting equipment for electric fan |
| US7416506B2 (en) * | 2003-02-12 | 2008-08-26 | Varibox (Pty) Limited | Rotor controlled transmission |
| DE202004017964U1 (en) * | 2004-11-18 | 2005-01-05 | Wang, Wei-Chi | Silent running air pump has a split housing containing the drive gears and piston and with the cylinder sleeve located into the housing via a mounting flange |
| CN201100328Y (en) * | 2007-07-27 | 2008-08-13 | 唐志坤 | Coaxial axis connection structure |
| JP2009257206A (en) * | 2008-04-17 | 2009-11-05 | Panasonic Corp | Rotary compressor |
| CN201534226U (en) * | 2009-11-06 | 2010-07-28 | 广州柴油机厂 | Slide mechanism of a heavy duty crankshaft lathe carriage |
| CN102943820B (en) * | 2012-11-03 | 2015-09-23 | 温岭市精仁机械有限公司 | A kind of rotor shaft of double end motor and the linkage structure of bent axle |
| CN203856872U (en) * | 2014-04-03 | 2014-10-01 | 浙江盛源空压机制造有限公司 | Crank structure of air compressor |
| CN204647033U (en) * | 2015-04-08 | 2015-09-16 | 北京汽车研究总院有限公司 | A kind of axle head limit structure of semiaxis |
| CN205225614U (en) * | 2015-12-15 | 2016-05-11 | 浙江盛源空压机制造有限公司 | Direct -connection type oil -free air compressor |
| CN206054218U (en) * | 2016-08-31 | 2017-03-29 | 苏州欧圣电气工业有限公司 | A kind of motor and the air compressor machine with the motor |
-
2016
- 2016-08-31 CN CN201810639525.8A patent/CN109038942B/en active Active
- 2016-08-31 CN CN201610779976.2A patent/CN106194650B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109038942A (en) | 2018-12-18 |
| CN106194650B (en) | 2018-07-31 |
| CN106194650A (en) | 2016-12-07 |
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