JPH0179365U

JPH0179365U -

Info

Publication number: JPH0179365U
Application number: JP1987158662U
Authority: JP
Priority date: 1987-10-19
Filing date: 1987-10-19
Publication date: 1989-05-29

Description

[Brief explanation of the drawing]

第１図は本案の一実施例を示す工業ミシン駆動
用の縦断面図である。１……ハウジング、２……固定子、３……エン
ドブラケツト、４……出力軸、５……シヤフト、
６……ロータマグネツト、７……検出マグネツト
、８……位置センサー、９……軸受、１０……ブ
レーキヨーク、１１……ブレーキ板、１２……ス
プライン軸、１３……フアン、１４……フイルタ
ー、１５……フイルターオサエ、１６……フアン
止メネジ、１７……フアンカバー、１８……プー
リ、１９……プーリカバー、２０……冷却風、２
１……ベース、２２……角。 FIG. 1 is a longitudinal sectional view of an industrial sewing machine drive device showing an embodiment of the present invention. 1... Housing, 2... Stator, 3... End bracket, 4... Output shaft, 5... Shaft,
6... Rotor magnet, 7... Detection magnet, 8... Position sensor, 9... Bearing, 10... Brake yoke, 11... Brake plate, 12... Spline shaft, 13... Fan, 14... Filter, 15...Filter insert, 16...Fan fixing female screw, 17...Fan cover, 18...Pulley, 19...Pulley cover, 20...Cooling air, 2
1...base, 22...corner.

Claims

[Scope of utility model registration request]

A stator is fitted into a housing, a rotor is supported via a bearing between the housing and an end bracket, and a permanent magnet is mounted facing the inner diameter of the stator. A spline shaft is attached to a part of the shaft that is a component of the rotor. a brake friction plate is slidably mounted on the spline shaft, a brake fixing portion has a winding built into the end bracket, and a brake yoke covered with a brake disc is opposed to the brake friction plate. A position sensor incorporating a magnetic detection element is disposed in a space between the end bracket and the housing, and a detection magnet of the shaft of the rotor has the same polarity as the permanent magnet across an air gap from the position sensor. A for driving an industrial sewing machine, which is fixed to
In the C servo motor, a cooling fan is installed at the end of the motor shaft shaft, a cover that covers the cooling fan, the end bracket, and a part of the housing is fixed to the end bracket, and an air intake hole provided at the closed end of the cover is installed. After the cooling air is sucked in and accelerated by the fan, the brake friction plate and the brake yoke are guided by the cover to cool them, and the air discharged from the open end of the cover is used to cool the stator through the heat dissipation fins of the housing. , end bracket,
A for driving industrial sewing machines, which has a structure that cools the housing, and is characterized by lower cooling air noise in the entire rotation speed range than the operating noise of sewing machines driven by this motor.
C servo motor cooling structure.