Self-locking type winch lifting device
A lifting device and self-locking technology, which is applied in the field of winches, can solve problems such as complex structure, inability to realize self-locking, troublesome operation, etc.
Active Publication Date: 2014-08-13
刘铁儿
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Problems solved by technology
If the pawl is used, although it can realize self-locking, it needs to be unlocked separately to continue to lift, and there is a problem of troublesome operation; while using a brake or clutch, not only the structure is complicated, but also self-locking cannot be realized, and self-locking and unlocking need to be done separately. operation to continue lifting
Method used
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[0008] Such as figure 1 As shown, a self-locking hoisting and lifting device includes a pulley block composed of a fixed pulley 1 and a movable pulley 2 and a traction cable 3 wound on the pulley block. The pulley block adopts a conventional fixed pulley 1 and a plurality of Moving pulley 2 is formed to reach labor-saving effect. There are hoisting drum 4 and brake drum 5 that rotate synchronously, and the synchronous rotation of hoisting drum 4 and brake drum 5 can be connected by gears or other rigid transmission mechanisms. As a preferred solution, the present invention uses hoisting drum 4 Set as coaxial integral molding with brake drum 5. Below hoisting drum 4 and braking drum 5 are provided with synchronously rotating larger winding drum 6 and smaller winding drum 7, and the synchronous rotation of larger winding drum 6 and smaller winding drum 7 can also be Gears or other rigid transmission mechanisms are used for connection. As a preferred solution, the present inven...
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The invention discloses a self-locking type winch lifting device. The self-locking type winch lifting device comprises a pulley block and a traction flexible rope, wherein the pulley block consists of fixed pulleys and a movable pulley; the traction flexible rope is wound on the pulley group. The self-locking type winch lifting device is provided with a winch drum and a braking drum which rotate synchronously; a larger winding drum and a smaller winding drum which rotate synchronously are arranged below the winch drum and the braking drum; the free end of the traction flexible rope out of one fixed pulley is wound on the winch drum by multiple circles, and then is downwards wound on one winding drum; a lifting wheel between the winch drum and the winding drum is arranged; the free end of the traction flexible rope out of the movable pulley winds around the lifting wheel upwards, and then is wound on the other winding drum downwards along the direction opposite to the winding direction of the other end; a braking flexible rope wound on the braking drum by multiple circles is arranged; one end of the braking flexible rope is elastically fixed, the other end of the braking flexible rope is provided with a lifting wheel in a lifting way and is provided with a blocking part; the blocking part blocks the lifting wheel from moving downwards so as to ensure that the elastic fixed end of the braking flexible rope has proper elastic tension. The self-locking type winch lifting device is simple in structure and convenient in operation.
Description
technical field [0001] The invention relates to the technical field of winches, in particular to a winch lifting device capable of realizing self-locking braking. Background technique [0002] The traditional hoist is usually composed of a winding drum, a flexible cable and a pulley block. The flexible cable can be wound by hand or motor-driven rotation of the winding drum, and the movable pulley of the pulley block is pulled up and down by the flexible cable to realize the lifting of the load. In order to maintain the lifting height of the winch, braking devices such as pawls, brakes or clutches are usually used to achieve this. If the pawl is used, although it can realize self-locking, it needs to be unlocked separately to continue to lift, and there is a problem of troublesome operation; while using a brake or clutch, not only the structure is complicated, but also self-locking cannot be realized, and self-locking and unlocking need to be done separately. The operation c...
Claims
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Inventor 刘铁儿
Owner 刘铁儿