Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2002-10-07
2003-09-09
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S058000, C310S052000, C310S056000, C310S064000, C310S090000, C310S06000A, C310S06000A, C310S059000
Reexamination Certificate
active
06617713
ABSTRACT:
BACKGROUND OF THE INVENTION
I. Field of the Invention
The present invention relates to a control device for prevention of stagnant rotation for a main shaft.
II. Description of the Prior Art
FIG. 1
shows the main shaft of a fabrication machine, wherein the interior of the motor housing
10
is provided in sequence a stator
11
, a rotor
12
and a rotating shaft
13
. The top end of the motor housing
10
is a motor top cover
15
with bearing
14
. The bottom part of the housing
10
is a main shaft seat
18
having a top bearing
14
and a bottom bearing
17
, and the rotating shaft
13
is pivotally passing through the bearing
14
of the motor top cover
15
and the top bearing
16
, the bottom bearing
17
of the main shaft seat
18
. The bottom section of the rotating shaft
13
is mounted with a tool clip
19
such that when the power source turns on, the clip
19
will rotate with the rotating shaft
18
and the rotor
12
. After a long operation, the individual bearings will produce heat as a result of friction and the lubricant will be evaporated and dried and abnormal noise will be gradually produced. If this is serious, the shaft main is jammed. Further, if the clip
19
is used for a long time, and it may be knocked accidentally, the rotating of the rotating shaft
13
may not be rotating equilibrium, and if the operator does not notice the situation, the quality of the work piece is poor.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an stagnant rotating prevention and safety control device for a main shaft having an oil fume detector, temperature control module and a vibration module of a rotating member, characterized in that the oil fume detector is provided with air-withdrawing channel A and air-withdrawing B each connected to the motor top cover and the two bearing position between the rotating shaft, and a air-withdrawing channel C is connected to the main shaft seat in between the top bearing position and the rotating shaft, and an air-withdrawing channel D is connected to the bottom bearing position between the main shaft seat and the bottom bearing for inspection of the amount of lubricant at the individual bearings being normal or abnormal; the temperature control module is provided with temperature inspection loop A which is connected to the two bearing sides of the motor top cover, and a temperature inspection loop B is connected to the stator position, and a temperature inspection loop C is connected to the top bearing of the main shaft seat and the side of the bottom bearing so as to provide inspection of the temperature at the two bearings, stator, top bearing and the bottom bearing in the course of rotating, and the vibration module is provided with moving equilibrium inspection loop. and the bottom section of the main shaft is provided with vibration sensor for sensing the balance of the rotating shaft.
Yet another object of the present invention is to provide an stagnant rotating prevention and safety control device for a main shaft, wherein the top section of the rotating shaft is mounted with a positioning screw nut and a T-shaped screw nut, and the T-shaped screw nut is for the adjusting of floating distance of the rotating shaft and a securing screw bolt locks the T-shaped screw nut and the positioning screw nut, and the inner sleeve of the bottom section of the rotating shaft, the middle partition ring, and the specific screw nut are positioned with groove between the external sleeve, front cover of the bearing and the dust-protection cover, the groove is functioned to keep away cutting fluid and metallic dust entering the main shaft.
A further object of the present invention is to provide an stagnant rotating prevention and safety control device for a main shaft, wherein the rotating shaft at the two ends of the rotor of the main shaft is provided with a plurality of heat dissipation sleeve so as to avoid high temperature being transferred to the bearing at the two ends thereof.
The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 5382858 (1995-01-01), Sugiyama
patent: 5394043 (1995-02-01), Hsia
patent: 5998894 (1999-12-01), Raad
patent: 6114784 (2000-09-01), Nakano
patent: 6239518 (2001-05-01), Matsubara et al.
Dougherty Thomas M.
Lei Leong C.
Mohandesi Iraj A.
LandOfFree
Stagnant rotating prevention and safety control device for a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stagnant rotating prevention and safety control device for a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stagnant rotating prevention and safety control device for a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3031085