JPS6019597U

JPS6019597U - Hoist with upper and lower limit switch

Info

Publication number: JPS6019597U
Application number: JP11145283U
Authority: JP
Inventors: 窪　喜久男
Original assignee: 株式会社日立製作所
Priority date: 1983-07-20
Filing date: 1983-07-20
Publication date: 1985-02-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のホイストの縦断側面図、第２図は第１図
の安全ブレーキ部の拡大図、第３図は本考案に使用する
安全フレーキ部の縦断側面拡大図、第４図は本考案の一
実施例に係る上下限リミットスイッチを安全ブレーキ部
に取付した縦断側面図、第５図は第４図の上下限リミッ
トスイッチ縦断平面図、第６図は、上下限リミットスイ
ッチの斜視図、第７図は第５図の上下限リミットスイッ
チの開路状態を示す縦断側面図、第８図は第５図の上下
限リミットスイッチの閉路状態を示す縦断側面図、第９
図は上下限リミットスイッチ装置付ホイストの操作回路
の結線図。１・・・・・・巻上モーＩ・ル、２・・・・・・Ｈシャ
フト、３・・・・・・回転検出軸、４・・・・・・１段
ギヤ、５・・・・・・２段ビニオン、６・・・・・・２
段ギヤ、７・・・・・・３段ピニオン、８・・・・・・
３段ギヤ、９・・・・・・ドラムシャフト、１０・・・
・・・ドラム、１１・・・・・・ワイヤロープ、１２・
・・・・・ギヤケース、１３・・・・・・エンドブラケ
ット、１４・・・・・・ブレーキホイール、１５・・・
・・・安全プレーキクミ、１６・・・・・・ブレーキカ
バー、１７・・・・・・スプリングホルダー、１８・・
・・・・安全ブレーキカバー、１９・・・・・・スタッ
トポル！−１２０・・・・・・カップリング、２１・・
・・・・シャフト、２２・・・・・・ボールベアリング
、２３・・・・・・ポル＋−Ａ、２４・・・・・・ＵＤ
Ｓ減速器、２５・・・・・・小歯車、２６・・・・・・
大歯車、２７・・・・・・ケース、２８・・・・・・カ
バー、２９・・・・・・ボルトＢ１３０・・・・・・上
限用カム、３１・・・・・・下限用カム、３２・・・・
・・上限用スイッチ、３３・・・・・・下限用スイッチ
、３４・・・・・・端子台、３５・・・・・・接触子、
δ・・・・・・間隔、Ｆｂ・・・・・・通常閉接点、Ｌ
Ｓ−１・・・・・・直動式リミットスイッチ、Ｕ・・・
・・・通常閉接点、ＬＳ−２・・・・・・直動式リミッ
トスイッチ、Ｒ３Ｔ・・・・・・三相交流電源。Figure 1 is a vertical side view of a conventional hoist, Figure 2 is an enlarged view of the safety brake part in Figure 1, Figure 3 is an enlarged vertical side view of the safety flake part used in the present invention, and Figure 4 is an enlarged view of the safety brake part in Figure 1. FIG. 5 is a vertical cross-sectional side view of the upper and lower limit switch according to an embodiment of the invention attached to the safety brake part, FIG. 5 is a vertical cross-sectional plan view of the upper and lower limit switch of FIG. 4, and FIG. 6 is a perspective view of the upper and lower limit switch. , FIG. 7 is a longitudinal side view showing the upper and lower limit switch of FIG. 5 in an open state, FIG. 8 is a longitudinal side view showing the upper and lower limit switch of FIG. 5 in a closed state, and FIG.
The figure is a wiring diagram of the operating circuit for a hoist with an upper and lower limit switch device. 1...Hoisting motor I/LE, 2...H shaft, 3...Rotation detection shaft, 4...1st gear, 5... ...2-stage binion, 6...2
Stage gear, 7...3rd stage pinion, 8...
3rd gear, 9...Drum shaft, 10...
...Drum, 11...Wire rope, 12.
... Gear case, 13 ... End bracket, 14 ... Brake wheel, 15 ...
...Safety play kikumi, 16...Brake cover, 17...Spring holder, 18...
...Safety brake cover, 19...Statpol! -120...Coupling, 21...
...shaft, 22 ... ball bearing, 23 ... pole +-A, 24 ... UD
S reducer, 25... Small gear, 26...
Large gear, 27... Case, 28... Cover, 29... Bolt B130... Upper limit cam, 31... Lower limit cam , 32...
... Upper limit switch, 33... Lower limit switch, 34... Terminal block, 35... Contactor,
δ... Spacing, Fb... Normally closed contact, L
S-1...Direct-acting limit switch, U...
... Normally closed contact, LS-2 ... Direct-acting limit switch, R3T ... Three-phase AC power supply.

Claims

[Scope of utility model registration request]

A moder as a drive source, an enlargement transmission mechanism section including a gear train for amplifying and transmitting the driving force of the modele, a drum rotated by the deceleration mechanism section and moving to the right a rope that suspends and raises and lowers a load, and the modele. a magnetic brake that brakes the rotation of the load; a rotation detection shaft that rotates as the modele rotates; 1. A hoist equipped with an upper and lower limit switch, characterized in that the hoist is equipped with a mechanism for detecting that a force has been reached, and a switch for braking the rotation of the modele, wherein the switch is actuated by the cam mechanism.