CN105119414A - Rotating shaft axial limiting structure and motor - Google Patents
Rotating shaft axial limiting structure and motor Download PDFInfo
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- CN105119414A CN105119414A CN201510638857.0A CN201510638857A CN105119414A CN 105119414 A CN105119414 A CN 105119414A CN 201510638857 A CN201510638857 A CN 201510638857A CN 105119414 A CN105119414 A CN 105119414A
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- rotating shaft
- limit structure
- axial limit
- worm screw
- shaft axial
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Abstract
The embodiment of the invention discloses a rotating shaft axial limiting structure. The rotating shaft axial limiting structure comprises an armature assembly, and a bearing, a shaft sleeve and a worm which sequentially sleeve the rotating shaft of the armature assembly, wherein the shaft sleeve and the rotating shaft are in interference fit, and one end of the shaft sleeve is butted with the inner ring of the bearing; the worm and the rotating shaft are in interference fit, and one end of the worm is butted with the shaft sleeve. By using the rotating shaft axial limiting structure provided by the invention, when a motor drives a door to open and the worm is subjected to first axial force, the sleeve in interference fit with the rotating shaft can limit the worm from axially moving, and when the motor drives the door body to close and the worm is subjected to second axial force, the interference fitting force between the inner hole of the worm and the rotating shaft limits the worm from axially moving. The rotating shaft axial limiting structure improves the axial limiting manner of this kind of motors and thereby solves the problem that the motors axially move under the effect of periodic back-and-forth impact force when doors are repetitively opened and closed. The invention further provides a motor.
Description
Technical field
The present invention relates to axial limiting technical field, more particularly, relate to a kind of rotating shaft axial limit structure and motor.
Background technology
Along with the development of technology, motor has been applied to increasing field as drive unit, for the operating mode of some specific loads of driven by motor, needs periodic rotating to run, and needs motor can bear axial impact force repeatedly, and wants reliably durable.The shield door motor driving gate body such as, used in track traffic does switch gate action and just belongs to this operating mode, and along with the fast development of track traffic, country also improves the attention to track traffic safety, people are to the requirement of waiting environment also corresponding raising, these all determine that shield door motor requirement transmission noise is little, efficiency is high, transmission is reliable, and life test test request switch gate number of times reaches 100-200 ten thousand times.
Multistart worm and helical gear transmission mechanism is generally adopted in the shield door of current track traffic.The axial force that this transmission mechanism produces motor is very large, therefore requires that motor has reliable position limiting structure on axial location.
Therefore, how to ensure reliable axial limiting, avoid axial endplay, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of rotating shaft axial limit structure, to ensure reliable axial limiting, avoid axial endplay;
Another object of the present invention is to provide a kind of motor.
For achieving the above object, the invention provides following technical scheme:
A kind of rotating shaft axial limit structure, comprises armature assembly and is sheathed on bearing in the rotating shaft of described armature assembly, axle sleeve and worm screw successively;
Described axle sleeve and described rotating shaft interference fit, one end of described axle sleeve abuts with the inner ring of described bearing;
Described worm screw and described rotating shaft interference fit, one end of described worm screw abuts with described axle sleeve.
Preferably, in above-mentioned rotating shaft axial limit structure, described worm screw has the riveting trace that riveting is formed.
Preferably, in above-mentioned rotating shaft axial limit structure, described rotating shaft offers the annular groove corresponding with described riveting trace.
Preferably, in above-mentioned rotating shaft axial limit structure, the hole that described worm screw coordinates with described rotating shaft is stepped hole.
Preferably, in above-mentioned rotating shaft axial limit structure, described riveting trace is positioned at the larger one end of described stepped hole diameter.
Preferably, in above-mentioned rotating shaft axial limit structure, described axle sleeve hot charging is assigned in described rotating shaft.
Preferably, in above-mentioned rotating shaft axial limit structure, described worm screw is colded pressing in described rotating shaft.
Preferably, in above-mentioned rotating shaft axial limit structure, described rotating shaft is provided with split washer, described bearing is between described split washer and described axle sleeve, and the inner ring of described bearing abuts with described split washer.
Preferably, in above-mentioned rotating shaft axial limit structure, described rotating shaft offers the circlip groove be embedded for described split washer.
A kind of motor, comprise rotating shaft axial limit structure, wherein, described rotating shaft axial limit structure is the rotating shaft axial limit structure as above described in any one.
As can be seen from above-mentioned technical scheme, rotating shaft axial limit structure provided by the invention, when driven by motor door body opens the door, when worm screw is subject to the first axial force, worm screw can be limited with the axle sleeve of rotating shaft interference fit to occur moving axially, when driven by motor door body is closed the door, when worm screw is subject to the second axial force, inner bore of worm and rotating shaft interference adhesion can limit worm screw and occur moving axially.Present invention improves the axial limiting mode of this type of motor, thus when solving repeatedly switch gate motor shaft to the problem by impulsive force generation play periodically back and forth.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the rotating shaft axial limit structure that Fig. 1 provides for the embodiment of the present invention;
The front view of the rotating shaft axial limit structure that Fig. 2 provides for the embodiment of the present invention;
The cutaway view of the rotating shaft axial limit structure that Fig. 3 provides for the embodiment of the present invention;
The partial sectional view of the rotating shaft axial limit structure that Fig. 4 provides for the embodiment of the present invention.
Wherein, 100 is worm screw, and 200 is axle sleeve, and 300 is bearing, and 400 is rotating shaft, and 500 is stator core, and 600 is split washer, and 101 is riveting trace, and 401 is annular groove, and 402 is circlip groove.
Embodiment
Core of the present invention is to provide a kind of rotating shaft axial limit structure, to ensure reliable axial limiting, avoids axial endplay;
Another core of the present invention is to provide a kind of motor.
Below, with reference to accompanying drawing, embodiment is described.In addition, the embodiment shown in below does not play any restriction effect to the summary of the invention described in claim.In addition, the solution that the full content of the formation below represented by embodiment is not limited to as the invention described in claim is necessary.
Refer to Fig. 1-Fig. 4, the structural representation of the rotating shaft axial limit structure that Fig. 1 provides for the embodiment of the present invention; The front view of the rotating shaft axial limit structure that Fig. 2 provides for the embodiment of the present invention; The cutaway view of the rotating shaft axial limit structure that Fig. 3 provides for the embodiment of the present invention; The partial sectional view of the rotating shaft axial limit structure that Fig. 4 provides for the embodiment of the present invention.
The rotating shaft axial limit structure that the embodiment of the present invention provides comprises armature assembly and is sheathed on bearing 300 in the rotating shaft 400 of armature assembly, axle sleeve 200 and worm screw 100 successively.Wherein, axle sleeve 200 and rotating shaft 400 interference fit, one end of axle sleeve 200 abuts with the inner ring of bearing 300.Worm screw 100 and rotating shaft 400 interference fit, one end of worm screw 100 abuts with axle sleeve 200.
Rotating shaft axial limit structure provided by the invention, when driven by motor door body opens the door, when worm screw 100 is subject to the first axial force, worm screw 100 can be limited with the axle sleeve 200 of rotating shaft 400 interference fit to occur moving axially, when driven by motor door body is closed the door, when worm screw 100 is subject to the second axial force, inner bore of worm and rotating shaft 400 interference adhesion can limit worm screw 100 and occur moving axially.Present invention improves the axial limiting mode of this type of motor, thus when solving repeatedly switch gate motor shaft to the problem by impulsive force generation play periodically back and forth.
In the present invention one specific embodiment, worm screw 100 has the riveting trace 101 that riveting is formed.After worm screw 100 is in place, by riveting worm screw 100, worm screw 100 crimp is formed riveting trace 101 symmetrically and evenly, this riveting trace 101 can make worm screw 100 bear the axial force more strengthened, further avoid motor shaft to during by periodic shock, there is the risk of play in worm screw 100.
Further, in order to ensure worm screw 100 and the fitment stability of rotating shaft 400 further, rotating shaft 400 offers the annular groove 401 corresponding with riveting trace 101.This annular groove 401 can be offered in the corresponding position of rotating shaft 400 in advance, also by riveting riveting trace 101, is automatically formed in rotating shaft 400.The male-female engagement of the projection that the present invention is formed by riveting trace 101 side and annular groove 401, promotes the ability to bear of axial force.
In the present invention one specific embodiment, the hole that worm screw 100 coordinates with rotating shaft 400 is stepped hole, and preferably riveting trace 101 is positioned at the larger one end of stepped hole diameter.When installing worm screw 100, one end larger by diameter loads, and can be pressed in the process of rotating shaft 400 worm screw 100 and play the guiding role, avoid the phenomenon occurring that axle is curved, the part that diameter is less realizes interference fit with the face of cylinder of rotating shaft 400.After worm screw 100 has been assembled with rotating shaft 400, by riveting technique, worm screw 100 is squeezed out multiple riveting trace 101 symmetrically.
In the present invention one specific embodiment, axle sleeve 200 hot charging is assigned in rotating shaft 400, namely by hot assembling sleeve 200, realizes the interference fit of axle sleeve 200 and rotating shaft 400.Hot charging formula formula utilizes the principle of expanding with heat and contract with cold, and heated by accessory when mounted, and mutual fit-up gap is expanded, and waits to install rear temperature and be cooled to working temperature again, and accessory is combined together tightly in the process of cooling meat.The present invention, by being assigned in rotating shaft 400 by axle sleeve 200 hot charging, makes both become to be integrated, and can avoid starting generation circumference instantaneously and relatively rotate.
In the present invention one specific embodiment, worm screw 100 is colded pressing in rotating shaft 400, is namely directly set in rotating shaft 400 by worm screw 100 by pressure.
In the present invention one specific embodiment, rotating shaft 400 is provided with split washer 600, bearing 300 is between split washer 600 and axle sleeve 200, and the inner ring of bearing 300 abuts with split washer 600.Further, rotating shaft 400 offers the circlip groove 402 be embedded for split washer 600.When driven by motor door body opens the door, when worm screw 100 is subject to the first axial force, worm screw 100 can be limited with the axle sleeve 200 of rotating shaft 400 interference fit, split washer 600 and riveting trace 101 and occur moving axially,
The embodiment of the invention also discloses a kind of motor adopting above-mentioned rotating shaft axial limit structure, owing to having above-mentioned rotating shaft axial limit structure, therefore this motor has all technique effects of above-mentioned rotating shaft axial limit structure equally, does not repeat them here herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a rotating shaft axial limit structure, is characterized in that, comprises armature assembly and is sheathed on bearing (300) in the rotating shaft (400) of described armature assembly, axle sleeve (200) and worm screw (100) successively;
Described axle sleeve (200) and described rotating shaft (400) interference fit, one end of described axle sleeve (200) abuts with the inner ring of described bearing (300);
Described worm screw (100) and described rotating shaft (400) interference fit, one end of described worm screw (100) abuts with described axle sleeve (200).
2. rotating shaft axial limit structure as claimed in claim 1, is characterized in that, described worm screw (100) has the riveting trace (101) that riveting is formed.
3. rotating shaft axial limit structure as claimed in claim 2, is characterized in that, described rotating shaft (400) offers the annular groove (401) corresponding with described riveting trace (101).
4. rotating shaft axial limit structure as claimed in claim 2, it is characterized in that, the hole that described worm screw (100) coordinates with described rotating shaft (400) is stepped hole.
5. rotating shaft axial limit structure as claimed in claim 4, it is characterized in that, described riveting trace (101) is positioned at the larger one end of described stepped hole diameter.
6. rotating shaft axial limit structure as claimed in claim 1, it is characterized in that, described axle sleeve (200) hot charging is assigned in described rotating shaft (400).
7. rotating shaft axial limit structure as claimed in claim 1, it is characterized in that, described worm screw (100) is colded pressing in described rotating shaft (400).
8. the rotating shaft axial limit structure as described in any one of claim 1-7, it is characterized in that, described rotating shaft (400) is provided with split washer (600), described bearing (300) is positioned between described split washer (600) and described axle sleeve (200), and the inner ring of described bearing (300) abuts with described split washer (600).
9. rotating shaft axial limit structure as claimed in claim 8, is characterized in that, described rotating shaft (400) offers the circlip groove (402) be embedded for described split washer (600).
10. a motor, comprises rotating shaft axial limit structure, it is characterized in that, described rotating shaft axial limit structure is the rotating shaft axial limit structure as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638857.0A CN105119414B (en) | 2015-09-29 | 2015-09-29 | A kind of shaft axial limit structure and motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510638857.0A CN105119414B (en) | 2015-09-29 | 2015-09-29 | A kind of shaft axial limit structure and motor |
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| CN105119414A true CN105119414A (en) | 2015-12-02 |
| CN105119414B CN105119414B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510638857.0A Active CN105119414B (en) | 2015-09-29 | 2015-09-29 | A kind of shaft axial limit structure and motor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634202A (en) * | 2016-03-17 | 2016-06-01 | 成都华川电装有限责任公司 | Wiper motor |
| CN106041425A (en) * | 2016-06-27 | 2016-10-26 | 无锡市蓝力机床有限公司 | Motor shaft and manufacturing method thereof |
| CN106849415A (en) * | 2015-12-04 | 2017-06-13 | 深圳东明机电股份有限公司 | For the rotor assembly on pump motor |
| CN109067068A (en) * | 2018-08-27 | 2018-12-21 | 中船重工电机科技股份有限公司 | A kind of compression-resistant structure of deep water propulsion electric machine |
| CN110535286A (en) * | 2019-09-17 | 2019-12-03 | 成都华川电装有限责任公司 | Part fixing structure and rain shaving electrical machine rotor are set on axis |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137351A1 (en) * | 2004-02-17 | 2007-06-21 | Franz Schwendemann | Gear drive unit |
| CN201928134U (en) * | 2011-03-07 | 2011-08-10 | 中欧汽车电器有限公司 | Wiper motor |
| CN202260838U (en) * | 2011-09-06 | 2012-05-30 | 福州泰全电机有限公司 | Fixing device for automotive wiper motor shaft |
| CN102904376A (en) * | 2012-10-09 | 2013-01-30 | 浙江胜华波电器股份有限公司 | Transmission buffer type wiper motor as well as setting and installation method for transmission buffer parts of wiper motor |
| CN205017149U (en) * | 2015-09-29 | 2016-02-03 | 珠海凯邦电机制造有限公司 | Pivot axial limit structure and motor |
-
2015
- 2015-09-29 CN CN201510638857.0A patent/CN105119414B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137351A1 (en) * | 2004-02-17 | 2007-06-21 | Franz Schwendemann | Gear drive unit |
| CN201928134U (en) * | 2011-03-07 | 2011-08-10 | 中欧汽车电器有限公司 | Wiper motor |
| CN202260838U (en) * | 2011-09-06 | 2012-05-30 | 福州泰全电机有限公司 | Fixing device for automotive wiper motor shaft |
| CN102904376A (en) * | 2012-10-09 | 2013-01-30 | 浙江胜华波电器股份有限公司 | Transmission buffer type wiper motor as well as setting and installation method for transmission buffer parts of wiper motor |
| CN205017149U (en) * | 2015-09-29 | 2016-02-03 | 珠海凯邦电机制造有限公司 | Pivot axial limit structure and motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849415A (en) * | 2015-12-04 | 2017-06-13 | 深圳东明机电股份有限公司 | For the rotor assembly on pump motor |
| CN105634202A (en) * | 2016-03-17 | 2016-06-01 | 成都华川电装有限责任公司 | Wiper motor |
| CN106041425A (en) * | 2016-06-27 | 2016-10-26 | 无锡市蓝力机床有限公司 | Motor shaft and manufacturing method thereof |
| CN109067068A (en) * | 2018-08-27 | 2018-12-21 | 中船重工电机科技股份有限公司 | A kind of compression-resistant structure of deep water propulsion electric machine |
| CN109067068B (en) * | 2018-08-27 | 2023-09-01 | 中船重工电机科技股份有限公司 | Compression-resistant structure of deepwater propulsion motor |
| CN110535286A (en) * | 2019-09-17 | 2019-12-03 | 成都华川电装有限责任公司 | Part fixing structure and rain shaving electrical machine rotor are set on axis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105119414B (en) | 2018-04-20 |
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