Rotary shaft and motor with the same
A shaft and motor technology, applied in the field of motors, can solve the problems of fast wear on the side of the shaft, poor sliding performance, wear on the tooth belly surface and the rack, and achieve the effects of preventing the wear of the screw, realizing light weight, and suppressing noise
Inactive Publication Date: 2008-01-30
SANKYO SEIKI MFG CO LTD
View PDF2 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] However, in the above-mentioned Patent Document 1, when the grease is not held uniformly in the concave portion formed on the tooth flank surface, there will be a portion where the grease adheres thinly, and at this thinly adhered portion, the tooth flank surface and the rack portion may wear out
[0009] In the above-mentioned Patent Document 2, if the shaft is made of aluminum or an aluminum alloy, the wear resistance and sliding properties are poor, so even if grease is applied between the bearing and the bearing or the bearing is made of resin, there will be friction on the side of the shaft. fast wear problem
[0010] If the shaft is made of iron or iron alloy, the sliding performance is poor, so even if grease is applied between the shaft and the bearing or the bearing is made of resin, there is also the problem of rapid wear on the side of the shaft.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0061] A motor to which the present invention is applied will be described below with reference to the drawings.
[0062] [Embodiment 1]
[0063] (The overall structure of the stepping motor)
[0064] Fig. 1 (a) is a half-sectional view of the stepping motor to which the present invention is applied, Fig. 1 (b) is a rear view of the stepping motor from the anti-output side (side opposite to the output side), and Fig. 1 (c ) is an explanatory diagram of the rotating shaft.
[0065] In FIG. 1( a ) and FIG. 1( b ), the stepping motor 1 of this form roughly includes a stator 5 , a rotor 2 , a motor case 50 covering the periphery of the stator 5 , and a frame 7 fixed on the output side of the stator 5 . The rotor 2 includes a rotating shaft 20 and two permanent magnets 28, 29, the permanent magnets 28, 29 are fixed at adjacent positions in the axial direction with respect to the anti-output side of the rotating shaft 20, and the respective N of the two permanent magnets 28, 29 T...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The present invention provides an antiwear rotating shaft and the motor using the rotating shaft. The rotating shaft (20) which is formed with a feed screw at the circumference surface of the base metal, and the feed screw (26) which slides with the spherical projection part (24) and the cylindrical projection part (25) of the sliding part of the bearing (3, 4) and the embarking part (10) are formed with the following components: a resin tectorial membrane (202) formed by the electro-deposition tectorical membrane which works as solid lubricant in the polyimide resin and contains polytetrafluoroethylene particles and graphite particles, and / or resin tectorial membrane (202) composed by the electro-deposition tectorial membrane which is added with bulking agent in the epoxylite.
Description
technical field [0001] The present invention relates to a rotating shaft with a lead screw formed on the peripheral surface of a base material and a motor with the rotating shaft. Background technique [0002] As a motor used in CD players and DVD players, for example, a stepping motor in which a screw is formed on the outer peripheral surface of the output side portion of the shaft is used. The rack portion of the member and the carrier (Japanese: Caialia) having the rack portion move (for example, refer to Patent Document 1). [0003] In other stepping motors, for example, permanent magnets are attached to a rotating shaft to constitute a rotor, and a stator is arranged at a position opposed to the permanent magnets in the radial direction. The rotating shaft is rotatably supported by bearings (for example, refer to Patent Document 2). [0004] In the spiral groove forming process for forming the spiral groove in the lead screw disclosed in Patent Document 1, the rotatin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02F16H25/24C09D5/44C09D179/08H02K7/06H02K7/00
Inventor 山本登子雄西村清志水嵜康史桑泽隆文饭泽彰敏
Owner SANKYO SEIKI MFG CO LTD