Cable electric hoist

FIELD: machine building.

SUBSTANCE: invention relates to handling equipment, particularly to cable electric hoists. Cable electric hoist comprises two frames (1, 2) with working wheels (4), lifting element (16) with hook (17), on one of frames (2) displacement (5) electric motor is attached and on another are installed drum (6), reduction gear (8) and lifting electric motor (9). Lifting electric motor (9) is arranged in drum (6) inner cavity, between frames (1, 2) control axis (3) is arranged, frame (1) with displacement (9) electric motor is made with shelf (13) to support spring-loaded roller (12) spring, made with possibility of rolling along beam crane (14) lower surface (15), and on drum (6) gear rim (10) is arranged with possibility to engage with reduction gear output shaft (8) drive gear (11).

EFFECT: enabling improvement of electric hoist design with reduced weight and small overall dimensions.

1 cl, 4 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: plant to be used as draw work comprises motor, second motor, planetary gear engaged with motors and coil connected with transmission and having inner chamber to house motors and transmission. Motors are arranged completely inside said coil. One of motors is rpm-controlled while another one is torque-controlled design. Engine specific power makes over 0.182 hp per pound. In compliance with the other version, engine torque intensity makes over 2000 kilo-pound at volume less than about 30 cubic meters. In compliance with the other version, this plant comprises recuperative braking system connected with the engine and rotary inductor connected with transmission. Said recuperative braking system receives electric power from the motor in response to inductor rotation. Note here that said system accumulates the power in power accumulation system.

EFFECT: higher reliability.

19 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: invention relates to chain hoist. A chain hoist (1) is equipped by an electric motor (2) and coupled to a reducer (5) by a friction clutch (4). Recesses in the form of a thread are provided circumferentially on the periphery surface (4h) of the friction clutch (4).

EFFECT: increased area of heat exchange surface and increased heat removal.

8 cl, 2 dwg

Lift drive // 2359900

FIELD: hoisting devices.

SUBSTANCE: invention refers to electric drives of machineries of various purpose. Device consists of asynchronous electric motor with squirrel-cage rotor, traction sheave and brake system. Asynchronous electric motor is made with electric reduction that is formed by the fact that stator winding consists of "i" separate two-layered windings designed for overall supply voltage, and galvanic unconnected and isolated from each other, and each of them occupies "1/i" part of stator circle. External sides of sections of each winding, which comprise its extreme poles, are put together with external sides of sections of neighbouring windings into common stator slots. Poles of neighbouring windings at the joint of windings are of opposite sign. At that, i - integral number not less than 2.

EFFECT: increasing reliability of asynchronous electric motor of special configuration.

14 dwg

FIELD: mechanical engineering; load lifting facilities.

SUBSTANCE: invention relates to design of hoists operating under explosion and fire-hazard conditions. Proposed device contains control panel connected with pneumatic motors of lifting and travel-motion mechanisms and containing pneumatic distributors to switch on supply, set speed and direction. Remote control panel interacts with control panel through relay control unit by modulated infrared signal. Control panel pneumatic distributors are operated by electromagnets, relay control unit is supplied by self-contained source in form of motor-generator in which pneumatic motor is used as motor.

EFFECT: improved safety at control and operating conditions of control devices owing to elimination of delay in signal passing thanks to use of electric control circuits and provision of wireless communication between control panel and relay control unit of device.

2 cl, 3 dwg

Motor-drum // 2271990

FIELD: mechanical engineering; winches.

SUBSTANCE: invention relates to load-lifting mechanisms, particularly, to drives of winches and hoists. Proposed motor-drum consists of two supports. Flanged motor, and planetary multiflow reduction gear placed inside drum housing. Support journal gear carrier projecting from reduction gear is rigidly connected with first support of drum. Carrier is provided with second support journal getting into drum, and housing of reduction gear and drum rest on both said support journals. With motor mounted from outside, flange of motor is attached to flange of first support of drum and first support of carrier, and is connected by shaft through sleeve coupling with sun gear of reduction gear passing through said support. With motor mounted inside, flange of motor is connected with second support journal of carrier and by shaft, through sleeve coupling, it is connected with gear of reduction gear passing through said support.

EFFECT: simplified design, improved repairability and reliability of motor-drum.

4 dwg

Air-operated hoist // 2265572

FIELD: load-lifting facilities.

SUBSTANCE: invention relates to hoists designed for use in fire-and explosion-hazard areas. Proposed hoist contains trolley and lifting mechanism. Air-operated motor with possibility of stepless control of speed is used as trolley travel motion drive and load lifting drive. Control system has suspended control unit connected with turnable throttling spool installed on control panel. Control panel is secured on trolley and is provided with pneumatic distributors to control air-operated motors, and pneumatic distributor to cut off supply. Control unit is suspended on rod consisting of tubular members interconnected by Hooke's joints. Said control unit is provided with supply cutoff toggle switch with locking device, mode pneumatic selector and handwheel with self-setting in neutral whose rotation is transmitted to throttling spool through rod. Angle of handwheel turning determines speed of air-operated motors, and direction of turning, direction of rotation.

EFFECT: enlarged operating capabilities owing to stepless control of speed of air-operated motors, simplified design, improved operating properties and safety of hoist control.

3 cl, 6 dwg

Load-lifting device // 2265571

FIELD: mechanical engineering; load-lifting facilities.

SUBSTANCE: according to invention, device is furnished with lifted load measuring device in form of cylindrical housing arranged from inner side of check of load-lifting device housing. Housing of load-measuring device accommodates spring with rod terminating in thread and connected to eye plate to which wire rope of hook hanger rope-and-sheave system is fastened. Guide installed in upper part of rod is connected with contact of potentiometer sensor arranged from outer side of cheek of load-lifting device housing. Said sensor is used to transmit electric signal proportional to value of load through supply unit amplifier and comparator device to table arranged on control panel of device. Device is furnished also with disk brake installed on its housing and provided with brake disk on end of shaft of wormwheel of worm pair.

EFFECT: improved reliability of device and convenience in operation.

3 cl, 4 dwg

Tal pneumatic // 2208572
The invention relates to lifting devices, in particular to talam, which can be used for lifting loads in flammable and explosive environments

The invention relates to equipment for lifting loads

Lifting device // 2148551
The invention relates to lifting devices

Load-lifting device // 2265571

FIELD: mechanical engineering; load-lifting facilities.

SUBSTANCE: according to invention, device is furnished with lifted load measuring device in form of cylindrical housing arranged from inner side of check of load-lifting device housing. Housing of load-measuring device accommodates spring with rod terminating in thread and connected to eye plate to which wire rope of hook hanger rope-and-sheave system is fastened. Guide installed in upper part of rod is connected with contact of potentiometer sensor arranged from outer side of cheek of load-lifting device housing. Said sensor is used to transmit electric signal proportional to value of load through supply unit amplifier and comparator device to table arranged on control panel of device. Device is furnished also with disk brake installed on its housing and provided with brake disk on end of shaft of wormwheel of worm pair.

EFFECT: improved reliability of device and convenience in operation.

3 cl, 4 dwg

Air-operated hoist // 2265572

FIELD: load-lifting facilities.

SUBSTANCE: invention relates to hoists designed for use in fire-and explosion-hazard areas. Proposed hoist contains trolley and lifting mechanism. Air-operated motor with possibility of stepless control of speed is used as trolley travel motion drive and load lifting drive. Control system has suspended control unit connected with turnable throttling spool installed on control panel. Control panel is secured on trolley and is provided with pneumatic distributors to control air-operated motors, and pneumatic distributor to cut off supply. Control unit is suspended on rod consisting of tubular members interconnected by Hooke's joints. Said control unit is provided with supply cutoff toggle switch with locking device, mode pneumatic selector and handwheel with self-setting in neutral whose rotation is transmitted to throttling spool through rod. Angle of handwheel turning determines speed of air-operated motors, and direction of turning, direction of rotation.

EFFECT: enlarged operating capabilities owing to stepless control of speed of air-operated motors, simplified design, improved operating properties and safety of hoist control.

3 cl, 6 dwg

Motor-drum // 2271990

FIELD: mechanical engineering; winches.

SUBSTANCE: invention relates to load-lifting mechanisms, particularly, to drives of winches and hoists. Proposed motor-drum consists of two supports. Flanged motor, and planetary multiflow reduction gear placed inside drum housing. Support journal gear carrier projecting from reduction gear is rigidly connected with first support of drum. Carrier is provided with second support journal getting into drum, and housing of reduction gear and drum rest on both said support journals. With motor mounted from outside, flange of motor is attached to flange of first support of drum and first support of carrier, and is connected by shaft through sleeve coupling with sun gear of reduction gear passing through said support. With motor mounted inside, flange of motor is connected with second support journal of carrier and by shaft, through sleeve coupling, it is connected with gear of reduction gear passing through said support.

EFFECT: simplified design, improved repairability and reliability of motor-drum.

4 dwg

FIELD: mechanical engineering; load lifting facilities.

SUBSTANCE: invention relates to design of hoists operating under explosion and fire-hazard conditions. Proposed device contains control panel connected with pneumatic motors of lifting and travel-motion mechanisms and containing pneumatic distributors to switch on supply, set speed and direction. Remote control panel interacts with control panel through relay control unit by modulated infrared signal. Control panel pneumatic distributors are operated by electromagnets, relay control unit is supplied by self-contained source in form of motor-generator in which pneumatic motor is used as motor.

EFFECT: improved safety at control and operating conditions of control devices owing to elimination of delay in signal passing thanks to use of electric control circuits and provision of wireless communication between control panel and relay control unit of device.

2 cl, 3 dwg

Lift drive // 2359900

FIELD: hoisting devices.

SUBSTANCE: invention refers to electric drives of machineries of various purpose. Device consists of asynchronous electric motor with squirrel-cage rotor, traction sheave and brake system. Asynchronous electric motor is made with electric reduction that is formed by the fact that stator winding consists of "i" separate two-layered windings designed for overall supply voltage, and galvanic unconnected and isolated from each other, and each of them occupies "1/i" part of stator circle. External sides of sections of each winding, which comprise its extreme poles, are put together with external sides of sections of neighbouring windings into common stator slots. Poles of neighbouring windings at the joint of windings are of opposite sign. At that, i - integral number not less than 2.

EFFECT: increasing reliability of asynchronous electric motor of special configuration.

14 dwg

FIELD: machine building.

SUBSTANCE: invention relates to chain hoist. A chain hoist (1) is equipped by an electric motor (2) and coupled to a reducer (5) by a friction clutch (4). Recesses in the form of a thread are provided circumferentially on the periphery surface (4h) of the friction clutch (4).

EFFECT: increased area of heat exchange surface and increased heat removal.

8 cl, 2 dwg

FIELD: transport.

SUBSTANCE: plant to be used as draw work comprises motor, second motor, planetary gear engaged with motors and coil connected with transmission and having inner chamber to house motors and transmission. Motors are arranged completely inside said coil. One of motors is rpm-controlled while another one is torque-controlled design. Engine specific power makes over 0.182 hp per pound. In compliance with the other version, engine torque intensity makes over 2000 kilo-pound at volume less than about 30 cubic meters. In compliance with the other version, this plant comprises recuperative braking system connected with the engine and rotary inductor connected with transmission. Said recuperative braking system receives electric power from the motor in response to inductor rotation. Note here that said system accumulates the power in power accumulation system.

EFFECT: higher reliability.

19 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: invention relates to handling equipment, particularly to cable electric hoists. Cable electric hoist comprises two frames (1, 2) with working wheels (4), lifting element (16) with hook (17), on one of frames (2) displacement (5) electric motor is attached and on another are installed drum (6), reduction gear (8) and lifting electric motor (9). Lifting electric motor (9) is arranged in drum (6) inner cavity, between frames (1, 2) control axis (3) is arranged, frame (1) with displacement (9) electric motor is made with shelf (13) to support spring-loaded roller (12) spring, made with possibility of rolling along beam crane (14) lower surface (15), and on drum (6) gear rim (10) is arranged with possibility to engage with reduction gear output shaft (8) drive gear (11).

EFFECT: enabling improvement of electric hoist design with reduced weight and small overall dimensions.

1 cl, 4 dwg

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