CN200956532Y - DC motor front end cover - Google Patents
DC motor front end cover Download PDFInfo
- Publication number
- CN200956532Y CN200956532Y CN 200620108213 CN200620108213U CN200956532Y CN 200956532 Y CN200956532 Y CN 200956532Y CN 200620108213 CN200620108213 CN 200620108213 CN 200620108213 U CN200620108213 U CN 200620108213U CN 200956532 Y CN200956532 Y CN 200956532Y
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- CN
- China
- Prior art keywords
- direct current
- connection block
- end cover
- motor
- current machine
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a front end cover of a DC motor, belonging to the technical field of motor manufacturing. The utility model includes a front end cover body, a central axis hole is arranged on the body, the internal end of the front end cover body is provided with a ring bearing chock and a ring connection base concentric with the central axis hole, the bearing chock is arranged in the connection base, an annular clearance is formed between the bearing chock and the connection base, and at least two stiffeners are arranged in the annular clearance. The stiffener is difficult to become deformed, better ensuring the concentricity between the bearing chock and the connection base and a shell, reducing noise in the process of running, being helpful to improve motor performance, and resolving the problems that the bearing chock and the connection base of the front end cover of the existing non-metallic DC motor is easy to become deformed under the condition of heating with a result of eccentricity of the front end cover and the shell, increasing noise in the running process of DC motor, affecting motor performance, and so on.
Description
Technical field
The utility model relates to a kind of direct current machine front end housing, belongs to the technical field that motor is made.
Technical background
In the direct current machine front end housing that nonmetallic materials such as employing glass-fiber-reinforced polyamide 6 resins are made, for install bearing with being connected of casing, the front end housing body of being everlasting is inner to be provided with annular shaft bearing and the annular Connection Block concentric with central shaft hole, and forms the annular gap between bearing pedestal and annular Connection Block.But because the nonmetallic materials thermal endurance is not as metal material, easily deform under the situation that bearing pedestal on the said structure front end housing and Connection Block are heated, thereby the off-centre that has caused front end housing and casing has caused noise increase in the direct current machine running, has influenced the runnability of motor.
Summary of the invention
It is a kind of not yielding that the utility model purpose is to provide, guaranteed the concentricity of bearing pedestal and Connection Block and casing preferably, reduced the noise in the motor operation course, be beneficial to the direct current machine front end housing of the stability that improves the motor runnability, solved under the situation that bearing pedestal that existing nonmetal direct current machine front end housing exists and Connection Block be heated and easily deformed, thereby the off-centre that has caused front end housing and casing, cause noise increase in the direct current machine running, influenced the problems such as runnability of motor.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: comprise the front end housing body, body is provided with central shaft hole, body the inner is provided with annular shaft bearing and the annular Connection Block concentric with central shaft hole, bearing seat is in Connection Block, form the annular gap between bearing pedestal and the Connection Block, be provided with at least 2 reinforcements in the described annular gap.Wherein, reinforcement is set in the annular gap between bearing pedestal and Connection Block can locate bearing pedestal and Connection Block mutually, under the situation of being heated, be difficult for deforming, thereby guaranteed concentricity between bearing pedestal and Connection Block and the casing than the highland, rotor between the direct current machine front and rear cover and the concentricity between the casing have promptly been guaranteed to be assemblied in, and then make rotor and casing inner wall between the gap even everywhere, reduce the noise in the direct current machine running, improved the stability of performance in the direct current machine running.
As preferably, the number of described reinforcement is 2-10; Comparatively preferred, the number of described reinforcement is 4-8; More preferred, the number of described reinforcement is 6.The reinforcement of fair amount is set in the annular gap, can reaches purpose on the one hand, also limited the increase of the manufactured materials that causes because of the increase reinforcement on the other hand bearing pedestal and Connection Block location; Really,, then the annular gap between bearing pedestal and the Connection Block can be filled up, make bearing pedestal and the Connection Block structure that directly forms as one if do not consider the increase of manufactured materials.
As preferably, the end face of the end face of described reinforcement and bearing pedestal and Connection Block is cut flat, can make to obtain complete positioning action between bearing pedestal and the Connection Block.
As preferably, described reinforcement is evenly arranged along the annular gap, can make and be supported the location between bearing pedestal and the Connection Block uniformly.
As preferably, the radian of described reinforcement is 1 π/10-1 π/6, makes reinforcement can play enough support positioning actions.
Therefore, the utlity model has not yieldingly, guaranteed preferably the concentricity of bearing pedestal and Connection Block and casing to have reduced the noise in the motor operation course, be beneficial to the characteristics such as stability that improve the motor runnability.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the A-A view of Fig. 1.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, front end housing body 1 is provided with central shaft hole 2, body 1 the inner is provided with annular shaft bearing 3 and the annular Connection Block 4 concentric with central shaft hole 2, bearing pedestal 3 is positioned at Connection Block 4, form annular gap 5 between bearing pedestal 3 and the Connection Block 4, be provided with 4 reinforcements of evenly arranging along the annular gap 6 in the annular gap 5, the end face of the end face of reinforcement 6 and bearing pedestal 3 and Connection Block 4 is cut flat, and the radian of each reinforcement 6 is 1 π/8.
During assembling, direct-current motor shell is enclosed within outside the Connection Block 4, bearing is set on the armature spindle, Bearing Installation is in bearing pedestal 3, being arranged on annular gap 5 interior reinforcements 6 can locate bearing pedestal and Connection Block mutually, under the situation of being heated, be difficult for deforming, thereby guaranteed concentricity between bearing pedestal and Connection Block and the casing than the highland, rotor between the direct current machine front and rear cover and the concentricity between the casing have promptly been guaranteed to be assemblied in, and then make rotor and casing inner wall between the gap even everywhere, reduce the noise in the direct current machine running, improved the stability of performance in the direct current machine running.
Claims (7)
1, a kind of direct current machine front end housing, comprise the front end housing body, body is provided with central shaft hole, body the inner is provided with annular shaft bearing and the annular Connection Block concentric with central shaft hole, bearing seat is in Connection Block, form the annular gap between bearing pedestal and the Connection Block, it is characterized in that being provided with in the described annular gap at least 2 reinforcements.
2, direct current machine front end housing according to claim 1, the number that it is characterized in that described reinforcement are 2-10.
3, direct current machine front end housing according to claim 2, the number that it is characterized in that described reinforcement are 4-8.
4, direct current machine front end housing according to claim 3, the number that it is characterized in that described reinforcement is 6.
5,, it is characterized in that the end face of described reinforcement and the end face of bearing pedestal and Connection Block cut flat according to claim 1 or 2 or 3 or 4 described direct current machine front end housings.
6,, it is characterized in that described reinforcement evenly arranges along the annular gap according to claim 1 or 2 or 3 or 4 described direct current machine front end housings.
7, according to claim 1 or 2 or 3 or 4 described direct current machine front end housings, the radian that it is characterized in that described reinforcement is 1 π/10-1 π/6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108213 CN200956532Y (en) | 2006-09-27 | 2006-09-27 | DC motor front end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620108213 CN200956532Y (en) | 2006-09-27 | 2006-09-27 | DC motor front end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956532Y true CN200956532Y (en) | 2007-10-03 |
Family
ID=38775114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620108213 Expired - Fee Related CN200956532Y (en) | 2006-09-27 | 2006-09-27 | DC motor front end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956532Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113875129A (en) * | 2019-03-29 | 2021-12-31 | 西门子股份公司 | Bearing end cap for a rotating electrical machine, use thereof and rotating electrical machine |
-
2006
- 2006-09-27 CN CN 200620108213 patent/CN200956532Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113875129A (en) * | 2019-03-29 | 2021-12-31 | 西门子股份公司 | Bearing end cap for a rotating electrical machine, use thereof and rotating electrical machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071003 Termination date: 20100927 |