JPH0374590U

JPH0374590U -

Info

Publication number: JPH0374590U
Application number: JP13590689U
Authority: JP
Priority date: 1989-11-22
Filing date: 1989-11-22
Publication date: 1991-07-26

Description

[Brief explanation of the drawing]

第１図は本考案の１実施例を示す切欠断面図、
第２図はラチエツトホイールを示す側面図、第３
図ａは第二作動部材を示す正面図、第３図ｂは同
側面図、第４図は押さえ板を示す側面図、第５図
ａは半割カラーを示す側面図、第５図ｂは同正面
図、第６図ａは丸カラーを示す側面図、第６図ｂ
は同正面図である。１……モータ、２……ロータ軸、１０……電磁
ブレーキ、１２……ピニオン軸、１３……ギヤボ
ツクス、１４……ピニオン、１５……減速軸、１
６……伝動ギヤ、１７……減速ピニオン、１８…
…減速ギヤ、１９……ロードシーブ、２０……ロ
ードチエーン、２１……雄ネジ、２２……第一作
動部材、２２ａ……第一ブレーキ板、２３……第
二作動部材、２３ａ……第二ブレーキ板、２３ｂ
……筒部、２４……ラチエツトホイール、２７…
…ラチエツト爪、３０……メカニカルブレーキ、
３３……押さえ板、３４……皿バネ、３５……軸
ナツト、４０……半割カラー、４１……丸カラー
、４２……クラツチ機構。 FIG. 1 is a cutaway sectional view showing one embodiment of the present invention;
Figure 2 is a side view showing the ratchet wheel, Figure 3 is a side view showing the ratchet wheel.
Figure a is a front view showing the second actuating member, Figure 3 b is a side view of the same, Figure 4 is a side view showing the holding plate, Figure 5 a is a side view showing the half collar, Figure 5 b is a side view of the second actuating member. The same front view, Figure 6a is a side view showing the round collar, Figure 6b
is a front view of the same. 1...Motor, 2...Rotor shaft, 10...Electromagnetic brake, 12...Pinion shaft, 13...Gearbox, 14...Pinion, 15...Deceleration shaft, 1
6... Transmission gear, 17... Reduction pinion, 18...
...Reduction gear, 19...Load sheave, 20...Load chain, 21...Male thread, 22...First operating member, 22a...First brake plate, 23...Second operating member, 23a...First Two brake plates, 23b
...Cylinder part, 24...Ratchet wheel, 27...
...Ratchet pawl, 30...Mechanical brake,
33...Press plate, 34...Disc spring, 35...Shaft nut, 40...Half collar, 41...Round collar, 42...Clutch mechanism.

Claims

[Claims for Utility Model Registration] (1) A pinion shaft 12 driven and rotated by the motor 1 is interlocked and connected to a reduction shaft 15 via a transmission gear 16, and the reduction shaft 15 is connected to a load sheave via a reduction gear 18. 19, the electric hoisting device is characterized in that: a clutch mechanism 42 that is capable of slipping at a predetermined torque or more is constructed between the transmission gear 16 and the reduction shaft 15. . (2) An electric motor in which a pinion shaft 12 driven and rotated by a motor 1 is interlocked and connected to a reduction shaft 15 via a transmission gear 16, and the reduction shaft 15 is interlocked and connected to a load sheave 19 via a reduction gear 18. In the hoisting device: between the transmission gear 16 and the reduction shaft 15, a clutch mechanism 42 capable of slipping at a predetermined torque or more is configured; An electric hoisting device characterized by comprising a mechanical brake 30 that prevents relative reversal of a deceleration shaft 15 relative to the rotation speed. (3) The mechanical brake 30 is connected to the deceleration shaft 1
5, the first actuating member 22 rotates on the deceleration shaft 15;
a second actuating member 23 rotated by the transmission gear 16; a ratchet wheel 24 provided between the first actuating member 22 and the second actuating member 23 and prevented from rotating by a ratchet pawl 27 only when reversing; a screw means 21 for screwing the first actuating member 22 and the second actuating member 23 onto the decelerating shaft 15 so as to sandwich the ratchet wheel 24 when the decelerating shaft 15 is reversely rotated relative to the transmission gear 16; An electric hoisting device according to claim (2) of the utility model registration, characterized in that the electric hoisting device is constructed by: