CN110365157B - Timing ignition generator rotor shaft and assembling method thereof - Google Patents
Timing ignition generator rotor shaft and assembling method thereof Download PDFInfo
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- CN110365157B CN110365157B CN201910748595.1A CN201910748595A CN110365157B CN 110365157 B CN110365157 B CN 110365157B CN 201910748595 A CN201910748595 A CN 201910748595A CN 110365157 B CN110365157 B CN 110365157B
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- rotor shaft
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- shaft body
- timing
- flywheel
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- 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
- H02K7/003—Couplings; Details of shafts
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- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a timing ignition generator rotor shaft and an assembling method thereof, and the timing ignition generator rotor shaft comprises a rotor shaft body, wherein the rotor shaft body comprises a rotor mounting section which is positioned in the middle in the axial direction, the front end of the rotor shaft body is coaxially provided with a connecting taper hole, the diameter of the front end of the connecting taper hole is larger than that of the rear end of the connecting taper hole, the rotor shaft body also comprises a flywheel connecting section which is positioned at the rear in the axial direction, the flywheel connecting section is axially provided with a key groove along the rotor shaft body, the front end of the rotor shaft body is radially provided with a timing pin hole communicated with the connecting taper hole along the rotor shaft body, and the plane passing through the axis of the timing pin hole and the axis of the rotor shaft body is a symmetrical plane of the key groove. Therefore, during assembly, the crankshaft and the connecting taper hole are fixed to each other through conical surface fitting, and the timing pin is driven into the timing pin hole to realize fastening connection. The mounting position of the flywheel is determined according to the position relation of the timing pin hole and the key groove, and the position of a timing reticle of the flywheel is determined. The locating pin hole is matched with the locating pin for use, so that the crankshaft and the rotor shaft can be prevented from slipping.
Description
Technical Field
The application relates to the technical field of generator rotor shafts, in particular to a timing ignition generator rotor shaft and an assembling method thereof.
Background
The shaft is a cylindrical object which is penetrated in the middle of the bearing or the middle of the wheel or the middle of the gear, but a small part of the shaft is square. A shaft is a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment. Typically in the form of a metal rod, each section may have a different diameter. The parts of the machine that rotate are mounted on the shaft. The generator rotor shaft is arranged in the generator and penetrates through the generator rotor to be used for transmitting torque to the generator rotor and driving the generator rotor to rotate.
One end of the motor rotor shaft is used for being connected with a crankshaft, the crankshaft is a power input shaft, the other end of the motor rotor shaft is used for being connected with a flywheel, and a rotor core used for cutting a magnetic induction line is connected to the motor rotor shaft. Existing generators have a timed ignition requirement to improve efficiency. Specifically, the timing reticle is arranged on the flywheel for adjustment, and the timing reticle is aligned with a corresponding reticle on the unit shell during adjustment. However, the existing crankshaft and the rotor shaft are connected through a conical surface, the rotor shaft has circumferential freedom degree during initial assembly, the flywheel can rotate relative to the crankshaft at the beginning of connection, and the timing reticle can be located at any circumferential position after the conical surface is attached, so that the timing reticle on the subsequent flywheel is not convenient to align with the reticle on the machine shell. Further taper connections also tend to slip during transmission.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the problem of how to provide the timing ignition generator rotor shaft and the assembling method thereof, which can facilitate the initial assembly to determine the relative position of the timing reticle on the flywheel and the crankshaft, and further prevent the crankshaft and the rotor shaft from slipping in the later use.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a timing ignition generator rotor shaft and assembly method thereof, including the rotor shaft body, the rotor shaft body includes the rotor installation section that is located the middle part in the axial direction, the front end of rotor shaft body is coaxial to be provided with connects the taper hole, the front end diameter of connecting the taper hole is greater than the rear end diameter, the rotor shaft body still includes the flywheel linkage segment that is located the rear in the axial direction, its characterized in that, be provided with the keyway along rotor shaft body axial on the flywheel linkage segment, rotor shaft body front end is provided with along the radial of rotor shaft body and is connected the timing pinhole of taper hole intercommunication, the central symmetry plane of keyway passes through the axis of timing pinhole and the axis of rotor shaft body.
Therefore, during assembly, the crankshaft and the connecting taper hole are fixed to each other through conical surface fitting, and the timing pin is driven into the timing pin hole to realize fastening connection. The installation position of the flywheel is determined through the position relation of the timing pin hole and the key groove, and the position of a timing reticle on the flywheel is determined, so that the assembly is convenient. The initial position of the rotor can be fixed in the above mode, so that the power generation starting angle of the rotor relative to the stator winding is fixed, the angle is orthogonal to 90 degrees, and the power generated is optimal. The locating pin hole is matched with the locating pin for use, so that the crankshaft and the rotor shaft can be prevented from slipping.
In consideration of machining errors, when the machining quality of the rotor shaft is actually controlled, the numerical value of the position degree of the key groove and the timing pin hole is limited to be smaller than the numerical value of the position degree of the timing groove on the flywheel, and the numerical value of the position degree error of the key groove and the timing pin hole is generally equal to or smaller than 0.25 mm.
Preferably, the outer peripheral surface of the flywheel connecting section is a conical surface, and the front end diameter of the conical surface is larger than the rear end diameter.
Therefore, the conical surface is convenient to guide in, and the axial positioning of the flywheel can be realized.
Preferably, the rotor shaft body further comprises a guiding-in conical section connected with the left end of the rotor mounting section and the right end of the rotor mounting section.
Therefore, the rotor is conveniently guided in by the guide-in conical sections when the rotor is installed, and the position of the rotor on the rotor shaft body is conveniently positioned by the two guide-in conical sections when the rotor is installed.
Preferably, the rotor shaft body further comprises a press-fitting collecting ring segment connected with the left end of the guiding-in conical segment on the left side, and a bearing mounting segment located between the press-fitting collecting ring segment and the flywheel mounting segment.
Thus, the above arrangement makes the structural arrangement compact.
Preferably, the front section of the rotor shaft body is an idle section, and the timing pin hole is located between the idle section and the rotor mounting section.
Thus, the structure is compact.
Preferably, the rotor shaft body has a ring groove in a portion of the outer peripheral surface thereof where the timer pin hole is provided.
In this way, the arrangement of the ring grooves can remove the plane milled on the rotor shaft in the drilling step, and the round shaft is obtained.
Preferably, the outer peripheral surface of the rotor mounting section is provided with a plurality of straight grooves, the straight grooves are axially arranged along the rotor shaft body, and the straight grooves are uniformly distributed at intervals along the circumferential direction of the rotor shaft body.
Like this, through the mounting bracket pressure equipment of interference fit and rotor, the straight flute can extrusion deformation, realizes the fastening connection between rotor shaft and the rotor, prevents to skid.
Preferably, the rotor mounting section is provided with a knurling on its outer circumferential surface.
Thus, the knurls are prevented from slipping after press fitting.
Preferably, the rotor shaft body is provided with a shaft center hole penetrating through the rotor shaft body in the axis direction, the inner peripheral wall of the rear end of the shaft center hole is provided with internal threads, and the front end of the shaft center hole is connected with the connecting taper hole.
Therefore, the axle center hole is matched with the pull rod for use, the pull rod is located in the axle center hole, the end part of the pull rod is provided with an external thread which is matched and connected with an internal thread on the axle center hole, and the crankshaft and the rotor shaft are tensioned.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a rotor shaft of a timing ignition generator and an assembling method thereof according to an embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Wherein, 1 is a rotor mounting section, 2 is a connecting taper hole, 3 is a flywheel connecting section, 4 is a key groove, 5 is a timing pin hole, 6 is a leading-in taper section, 7 is a press-mounting collecting ring section, 8 is a bearing mounting section, 9 is a vacant section, 10 is a ring groove, 11 is a straight groove, 12 is an axial hole, and 13 is an internal thread.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram according to a first embodiment of the present invention. The right side of the direction of the figure is front, and the left side is back.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a timing ignition generator rotor shaft and assembly method thereof, including the rotor shaft body, the rotor shaft body includes rotor installation section 1 that is located the middle part in the axial direction, the front end of rotor shaft body is coaxial to be provided with connects taper hole 2, the front end diameter of connecting taper hole 2 is greater than the rear end diameter, the rotor shaft body still includes the flywheel linkage segment 3 that is located the rear in the axial direction, be provided with keyway 4 along rotor shaft body axial on the flywheel linkage segment 3, rotor shaft body front end is provided with along the radial of rotor shaft body and is connected the timing pinhole 5 of taper hole 2 intercommunication, the central symmetry plane of keyway 4 passes through the axis of timing pinhole 5 and the axis of rotor shaft body.
Therefore, during assembly, the crankshaft and the connecting taper hole are fixed to each other through conical surface fitting, and the timing pin is driven into the timing pin hole to realize fastening connection. The installation position of the flywheel is determined through the position relation of the timing pin hole and the key groove, and the position of a timing reticle on the flywheel is determined, so that the assembly is convenient. The initial position of the rotor can be fixed in the mode, so that the power generation starting angle of the rotor relative to the stator winding is fixed, the angle is orthogonal 90, and the power generation effect is optimal. The locating pin hole is matched with the locating pin for use, so that the crankshaft and the rotor shaft can be prevented from slipping.
In consideration of machining errors, when the machining quality of the rotor shaft is actually controlled, the numerical value of the position degree of the key groove and the timing pin hole is limited to be smaller than the numerical value of the position degree of the timing groove on the flywheel, and the numerical value of the position degree error of the key groove and the timing pin hole is generally equal to or smaller than 0.25 mm.
In this embodiment, the outer peripheral surface of the flywheel connecting section 3 is a conical surface, and the front end diameter of the conical surface is larger than the rear end diameter.
Therefore, the conical surface is convenient to guide in, and the axial positioning of the flywheel can be realized.
In this embodiment, the rotor shaft body further includes a guiding cone section 6 connected to the left end of the rotor mounting section 1 and the right end of the rotor mounting section 1.
Therefore, the rotor is conveniently guided in by the guide-in conical sections when the rotor is installed, and the position of the rotor on the rotor shaft body is conveniently positioned by the two guide-in conical sections when the rotor is installed.
In this embodiment, the rotor shaft body further includes a press-fitting current collecting ring segment 7 connected to the left end of the leading-in cone segment 6 on the left side, and a bearing mounting segment 8 located between the press-fitting current collecting ring segment 7 and the flywheel mounting segment 3.
Thus, the above arrangement makes the structural arrangement compact.
In this embodiment, the front section of the rotor shaft body is an idle section 9, and the timing pin hole 5 is located between the idle section 9 and the rotor mounting section 1.
Thus, the structure is compact.
In this embodiment, the annular groove 10 is provided in the outer peripheral surface of the rotor shaft body at the position where the timer pin hole 5 is provided.
In this way, the annular groove is arranged to machine and remove the plane milled on the rotor shaft in the drilling step, so as to obtain the circular shaft.
In this embodiment, the rotor mounting section 1 has a plurality of straight grooves 11 on its outer peripheral surface, the straight grooves 11 are arranged along the axial direction of the rotor shaft body, and the plurality of straight grooves 11 are evenly distributed along the circumferential direction of the rotor shaft body at intervals.
Like this, through the mounting bracket pressure equipment of interference fit and rotor, the straight flute can extrusion deformation, realizes the fastening connection between rotor shaft and the rotor, prevents to skid.
In the present embodiment, the rotor mounting section 1 is provided with knurling on its outer circumferential surface.
Thus, the knurls are prevented from slipping after press fitting.
In this embodiment, the rotor shaft body is provided with a shaft center hole 12 penetrating through the axis direction of the rotor shaft body, an internal thread 13 is provided on the inner peripheral wall of the rear end of the shaft center hole 12, and the front end of the shaft center hole 12 is connected with the connecting taper hole 2.
Therefore, the axle center hole is matched with the pull rod for use, the pull rod is located in the axle center hole, the end part of the pull rod is provided with an external thread which is matched and connected with an internal thread on the axle center hole, and the crankshaft and the rotor shaft are tensioned.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (7)
1. The assembling method of the rotor shaft of the timing ignition generator comprises a rotor shaft body, wherein the rotor shaft body comprises a rotor mounting section which is positioned in the middle in the axial direction, a connecting taper hole is coaxially arranged at the front end of the rotor shaft body, the diameter of the front end of the connecting taper hole is larger than that of the rear end of the connecting taper hole, and the rotor shaft body also comprises a flywheel connecting section which is positioned behind the rotor shaft body in the axial direction; the outer peripheral surface of the rotor mounting section is provided with a plurality of straight grooves which are axially arranged along the rotor shaft body, and the straight grooves are uniformly distributed at intervals along the circumferential direction of the rotor shaft body;
the rotor shaft assembling method comprises the following steps:
firstly, fixing a crankshaft and a connecting taper hole through conical surface fitting, and driving a timing pin into a timing pin hole to realize fastening connection; then, the rotor mounting section is pressed and mounted with a mounting frame of the rotor through interference fit, and the straight groove is extruded and deformed, so that the rotor shaft and the rotor are tightly connected, and the rotor is prevented from slipping; and finally, the flywheel is guided in through the conical surface of the flywheel connecting section and is fixed on the rotor shaft through the matching of keys, so that the initial positions of the timing scribed lines and the fixed rotor on the flywheel are ensured, the power generation starting angle of the rotor relative to the stator winding is fixed, and the power generation starting angle is 90 degrees in an orthogonal mode.
2. The method of assembling a rotor shaft for a time-ignition generator of claim 1, wherein the rotor shaft body further includes a lead-in cone connected to a left end of the rotor mounting section and a right end of the rotor mounting section.
3. The method of assembling a rotor shaft of a time-ignition generator set forth in claim 1, wherein the rotor shaft body further includes a press-fit slip ring segment connected to a left end of the lead-in cone segment on the left side, and a bearing mounting segment located between the press-fit slip ring segment and the flywheel mounting segment.
4. The method of assembling a rotor shaft for a time-ignition generator of claim 1, wherein the front section of the rotor shaft body is a vacant section and the timer pin hole is located between the vacant section and the rotor mounting section.
5. The method of assembling a rotor shaft for a time-ignition generator according to claim 1, wherein a ring groove is formed in a portion of the outer peripheral surface of the rotor shaft body where the timing pin hole is formed.
6. The method of assembling a rotor shaft for a time-ignition generator according to claim 1, wherein the rotor mounting section is provided with knurling on its outer peripheral surface.
7. The method for assembling a rotor shaft of a timing ignition generator according to claim 1, wherein the rotor shaft body is provided with a shaft center hole extending in the axial direction thereof, an internal thread is provided on the inner peripheral wall of the rear end of the shaft center hole, and the front end of the shaft center hole is connected to the connecting tapered hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910748595.1A CN110365157B (en) | 2019-08-14 | 2019-08-14 | Timing ignition generator rotor shaft and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910748595.1A CN110365157B (en) | 2019-08-14 | 2019-08-14 | Timing ignition generator rotor shaft and assembling method thereof |
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| Publication Number | Publication Date |
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| CN110365157A CN110365157A (en) | 2019-10-22 |
| CN110365157B true CN110365157B (en) | 2021-12-07 |
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| CN201910748595.1A Active CN110365157B (en) | 2019-08-14 | 2019-08-14 | Timing ignition generator rotor shaft and assembling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111502887B (en) * | 2020-06-03 | 2021-09-14 | 中国民用航空飞行学院 | Method for accurately determining pre-ignition angle of ignition type aviation piston engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3341669B2 (en) * | 1998-03-24 | 2002-11-05 | 三菱電機株式会社 | Coupling mechanism of air conditioner fan |
| KR20110030842A (en) * | 2009-09-18 | 2011-03-24 | 한국델파이주식회사 | Rotor shaft applied in alternate generator of car |
| CN202250377U (en) * | 2011-04-26 | 2012-05-30 | 湖南华强电气有限公司 | Automobile engine |
| JP5770116B2 (en) * | 2012-01-25 | 2015-08-26 | 本田技研工業株式会社 | Internal combustion engine |
| CN102996233A (en) * | 2012-10-10 | 2013-03-27 | 贵州泰然环境科技有限责任公司 | Method for modifying gasoline generator into biogas generator |
| CN205051500U (en) * | 2015-09-18 | 2016-02-24 | 宁波艾德轴业有限公司 | Rotor shaft |
| CN206592419U (en) * | 2017-03-09 | 2017-10-27 | 重庆市浩帆机械有限公司 | A kind of generator rotor shaft of anti-slip |
| CN209180218U (en) * | 2018-09-30 | 2019-07-30 | 舟山市驰宇机械制造有限公司 | A kind of novel rotor axis |
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