SU1437346A1 - Hoist - Google Patents

Abstract

This invention relates to hoisting-and-transport mechanisms. The purpose of the invention is to reduce the labor intensity of installation. Tal comprises a housing 1 in which a drive wheel 2 is placed, interacting with the driven wheels 5 and 10. The driven wheels 5 and 10 are made integral with blocks 7 and 9, which bend around the branches of the flexible organ. On the housing 1 is installed braking devices 21 and 22, which interact with the respective wheels. Drive wheel connection 2 with vedo-. The wheel 10 is provided with protrusions 12 entering grooves 13, and the connection of wheel 2 with a driven wheel .5 takes place along Pascal spherical scrolls. 2 Il. 2

Description

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The invention relates to lifting and transport mechanisms used in various areas of the national economy.

The purpose of the invention is to reduce the labor intensity of installation.

FIG. 1 shows a general view of the device; in fig. 2 is a view A of FIG. 1, the cut.

Tal includes a housing 1, in which the drive wheel 2 mounted on crank 3 is p-mounted, is rigidly connected to the drive shaft 4, the driving shaft engages with the driven wheel 5 installed with the possibility of joint rotation on axis 6i. At the same time, the driven wheel 5 is executed in one piece with block 7, connected

25

with; flexible body 8 attachment. As a result, hook 15 is lifted integral with the driven wheel 10, also connected with the load branch 1J1 of the flexible member and mounted coaxially with the drive shaft 4. The drive axle 2 connection with the driven wheel 10 o | 5 is provided with protrusions 12, tension - IDEAL on the face surface of the wheel 2 and entering into the grooves 13 of the wheel 10. The hoist has lifting elements 1, made in the form of hooks 14 and 15, mounted in cages 16, the rollers 17 of which are covered by a flexible member, which is fixed to the body at one end 18 1 waist covered roller 17 top Boim 16, passes through the body 1, interacts with a unit 7 ohvatshaet roller 17 lower casing 16 and again extends through the housing 1, straddling the block 9 ,, with its free end 19 is released to the outside

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and may have a stop 20, interacting with lsontsevym switch, preventing overload of the lifting mechanism with the full use of the flexible body.

Tal is provided with braking devices 21 and 22, which interact with grooves 23 and 24 and drive out wheels 5 and 10 thanks to springs 25. The brakes are released by pneumatic actuators-50 knobs, consisting of membranes 26, forming together with korggus 1 chambers 27 and 28 .

To ensure a constant interaction of the flexible member 8 with the blocks 55 7 and 9, the hoist is equipped with clamping

(lowered) with shrunk load.

Dismantling (assembly) of the hoist is as follows.

The brake device 21 clamps the driven wheel 10 and the driving wheel 2 associated with it. When the oblique crank 3 rotates, the driving wheel 2 will also perform a precessional movement of the driving wheel of the driven wheel 5. At the same time, the driven wheel 5 will rotate in the opposite direction and its block 7 will roll over the flexible member 8, body 1 of the hoist down (rise).

Claims (2)

Invention Formula A hoist comprising a housing, an irivodal shaft mounted therein with a crank on which a drive wheel is mounted, a driven wheel articulated with it, placed coaxially with a drive shaft, enveloped by a load branch of a flexible organ, and a unit associated with a flexible organ of fastening of a hoist, characterized in that that, in order to reduce the laboriousness of the installation, it is equipped with an axis, an additional driven wheel and a braking device for each of the driven wheels, while the additional known wheel is rigidly connected to the said block mounted on the axis, associated with the driving glycol catfish, with their joint. rotation rollers 29 mounted on axles x 30 rigidly connected to housing 1. The rise (descent) of the cargo is as follows. The brake device 22 clamps the driven wheel 5. When the oblique crank 3 rotates, the drive wheel 2 makes a precessional movement of rolling on the driven wheel 5, and since the latter is inhibited, during one turn of the oblique crank 3, the drive wheel 2 rotates by one tooth. At the same time, due to the interaction of the projections 12 of the driving wheel 2 with the grooves 13 of the driven wheel 9, the latter also rotates at the same speed and moves the cargo branch of the flexible member 11 upwards. whereby the hook 15 rises (lowered) with shrunk load. Dismantling (assembly) of the hoist is as follows. The braking device 21 clamps the driven wheel 10 and the drive wheel associated with it. 2. When the oblique crank 3 rotates, the drive wheel 2 will also perform a precessional movement of the driven wheel rolling 5. At the same time, the driven wheel 5 will rotate in the opposite direction and its unit 7 will roll along the flexible member 8, the body 1 of the hoist will be lowered (raised). Invention Formula A hoist, comprising a housing, an irivodal shaft mounted therein, with a crank on which a drive wheel is mounted, a driven wheel articulated with it, placed coaxially with the drive shaft, enveloped by the load branch of the flexible organ, and a unit associated with the flexible organ of attachment of the hoist, characterized by that, in order to reduce the complexity of the installation, it is equipped with an axle, an additional driven wheel and a braking device for each of the driven wheels, while the additional known wheel is rigidly connected with the said unit mounted on the axis, and associated with the drive wheel with the possibility of their joint. rotation fpuS.i