CN201495056U - Friction type hoisting mechanism - Google Patents

Abstract

The utility model relates to a friction type hoisting mechanism which is characterized in that a rope driving mechanism comprises a front rope driving wheel and a rear rope driving wheel; the two rope driving wheels are connected with a rope driving speed reducer through a shaft; a front rope driving wheel axle and a rear rope driving wheel axle are fixedly connected with a front gear and a rear gear; the front gear and the rear gear are connected through a middle gear, the other end of the front rope driving wheel axle is inserted in a double-speed converter, and two unidirectional overrunning clutches are arranged at the end part of the front rope driving wheel; a driven gear is also mounted on a hollow shaft of the middle gear in the driving rope speed reducer; a central shaft is arranged in the hollow shaft of the middle gear; a rope storage winding drum is mounted at one end of the central shaft through a wet type friction clutch, and the two unidirectional overrunning clutches are also mounted at the other end of the central shaft in the double-speed converter; and a steel wire rope is firstly wound on the front rope driving wheel and the rear rope driving wheel and then wound on the rope storage winding drum through a fixed pulley. Because a rope storage mechanism and a rope driving mechanism are divided into two independent parts, the utility model simultaneously has the advantages of a single-layer and multi-layer winding hoisting mechanism such as small volume, large rope storage capacity, stable operation, long service life, good safety performance and wide application scope.

Description

Friction type hoisting mechanism

Technical field

The utility model relates to a kind of friction type hoisting mechanism.

Background technology

Lifting mechanism all is to drive reel by transmission device to order about steel rope and do traction or lifting as winch etc., and the coiling of steel rope generally is divided into individual layer and multilaminate coiled.Single laminate roll around its steel rope linear velocity of lifting mechanism stablize, operate steadily, but its storage rope amount is limited, and is long for traction, work the environment that raises, rope capacity inadequately will dilated diameter, increases mechanism; Though its reel of multilaminate coiled lifting mechanism is little, shortcoming be linear velocity can not be consistent, can disorder cable, move also not steadily, and steel rope bends easily, weares and teares, thereby reduced the service life of restricting.In the prior art individual layer and multilaminate coiled all be to collect to drive rope and restrict in a reel, mutual restriction on the function with storage.

Summary of the invention

The purpose of this utility model just provides that a kind of volume is little, Chu Shengliang is big, operate steadily, range of use is wide, safety performance good, the friction type hoisting mechanism of long service life.

Friction type hoisting mechanism of the present utility model, comprise motor, drg, retarder, coupler, electrical control cubicles, steel rope, drive rope mechanism, be characterized in driving forerunner's rope sheave and the rear-guard rope sheave that rope mechanism comprises two arrangement in parallels, two drive rope sheave by axle with drive the rope reductor link to each other, be connected with front gear on forerunner's sheave shaft, be connected with backgear on the rear-guard sheave shaft, front gear links to each other by intermediate gear with backgear, the identical symmetric offset spread of front gear with the backgear structure, the other end of forerunner's sheave shaft is inserted in the double speed transcriber, the mono-directional overrun clutch of two check switched in opposite is equipped with in its end, drive in the rope reductor and on the intermediate gear hollow shaft driven gear is housed also, driven gear is meshed with driving gear, driving gear is by axle and the coupler that drives outside the rope reductor, retarder, drg and motor link to each other, be provided with center shaft in the intermediate gear hollow shaft, one end of center shaft is a side outside driving the rope reductor, by wet friction clutch the storage rope reel is installed, the other end of center shaft is opposite side outside driving the rope reductor, be inserted in the double speed transcriber, this end dress also has the mono-directional overrun clutch of two check switched in opposite, mono-directional overrun clutch in the double speed transcriber on the disalignment links to each other by engaging gear, steel rope is wrapped on forerunner's rope sheave and the rear-guard rope sheave, and is wrapped on the storage rope reel by fixed pulley again.

The principle of work of friction type hoisting mechanism of the present utility model is: drive rope mechanism and adopt winding of single layer two-wheel friction-driven, storage rope mechanism adopts the big multilaminate coiled mode of rope amount of holding.Motor drives driving gear and driven gear motion by drg, retarder, coupler, driven gear is coaxial with intermediate gear, intermediate gear rotates with driven gear, and drive the forward and backward gear be engaged with, forward and backward gear drives forerunner's rope sheave simultaneously and rotates with identical speed with the rear-guard rope sheave, forerunner's rope sheave drives center shaft by the mono-directional overrun clutch and the engaging gear of axle head, and makes storage rope reel movement therewith.Be wrapped in the steel rope on forerunner's rope sheave and the rear-guard rope sheave, be connected on the storage rope reel by fixed pulley.When steel rope leads into or promote, the rope speed that can guarantee storage rope ground floor with drive the consistent of rope, along with the restrict increase of the number of plies of storage, rope speed can be more and more faster, can be consistent with the linear speed that drives rope by the wet friction clutch adjustment, fast can skidding; When steel rope when involving or descend, along with the minimizing of the storage rope number of plies, rope speed can be more and more slower, drive rope sheave and drag the commentaries on classics of storage rope sheave by steel rope, wet friction clutch also can skid, and the storage rope is then adjusted to reach and to drive the consistent of rope by wet friction clutch at the rope speed of other number of plies.Turn to the opposite mono-directional overrun clutch of check that moving into of rope laid out or alternating action is played in lifting, through driving the rope frictional transmission, the storage rope tension is very little, default normal pressure thrust guarantees that this rope tension can turn round winch safely and reliably in the rated load scope on wet friction clutch.In case overloaded, the storage rope tension is greater than setting pulling force, and wet friction clutch can skid, thereby has played the safety guard-safeguard effect.

Friction type hoisting mechanism of the present utility model, owing to will store up rope mechanism and drive rope mechanism and be divided into two independent parts, and both organic combinations, make this equipment have the plurality of advantages of individual layer and multilaminate coiled lifting mechanism simultaneously, mechanism's volume is little, Chu Shengliang greatly, not disorder cable, operate steadily, long service life, safety performance be good, it is applicable on crane in bridge type, transfer crane, high pedestal jib crane, tower crane, water conservancy headstock gear, crane for steelworks use and the harbour container hoisting crane.

Description of drawings

Fig. 1 is the utility model structural representation.

The specific embodiment

A kind of friction type hoisting mechanism, comprise motor 1, drg 2, retarder 3, coupler 4, electrical control cubicles 5, steel rope 16, drive rope mechanism, be characterized in driving forerunner's rope sheave 12 and the rear-guard rope sheave 17 that rope mechanism comprises two arrangement in parallels, two drive rope sheave by axle with drive the rope reductor 10 link to each other, be connected with front gear 11 on 12 of forerunner's rope sheaves, be connected with backgear 19 on 17 of the rear-guard rope sheaves, front gear 11 links to each other by intermediate gear 9 with backgear 19, front gear 11 and the identical symmetric offset spread of backgear 19 structures, the other end of forerunner's sheave shaft is inserted in the double speed transcriber 7, the mono-directional overrun clutch 6 of two check switched in opposite is equipped with in its end, drive in the rope reductor 10 and on the intermediate gear hollow shaft 21 driven gear 8 is housed also, driven gear 8 is meshed with driving gear 20, driving gear 20 is by axle and the coupler 4 that drives outside the rope reductor 10, retarder 3, drg 2 and motor 1 link to each other, be provided with center shaft 22 in the intermediate gear hollow shaft 21, one end of center shaft 22 is a side outside driving rope reductor 10, by wet friction clutch 14 storage rope reel 13 is housed, the other end of center shaft 22 is opposite side outside driving rope reductor 10, be inserted in the double speed transcriber 7, this end dress also has the mono-directional overrun clutch 15 of two check switched in opposite, mono-directional overrun clutch in the double speed transcriber 7 on the disalignment links to each other by engaging gear, steel rope 16 is wrapped on forerunner's rope sheave 12 and the rear-guard rope sheave 17, and is wrapped on the storage rope reel 13 by fixed pulley 18 again.

Claims (2)

1. friction type hoisting mechanism, comprise motor (1), drg (2), retarder (3), coupler (4), electrical control cubicles (5), steel rope (16), drive rope mechanism, it is characterized in that: drive forerunner's rope sheave (12) and rear-guard rope sheave (17) that rope mechanism comprises two arrangement in parallels, two drive rope sheave by axle with drive the rope reductor (10) link to each other, be connected with front gear (11) on forerunner's rope sheave (12) axle, be connected with backgear (19) on rear-guard rope sheave (17) axle, front gear (11) links to each other by intermediate gear (9) with backgear (19), the other end of forerunner's sheave shaft is inserted in the double speed transcriber (7), the mono-directional overrun clutch (6) of two check switched in opposite is equipped with in its end, drive on rope reductor (10) the interior intermediate gear hollow shafts (21) driven gear (8) also is housed, driven gear (8) is meshed with driving gear (20), driving gear (20) is by the axle coupler (4) outer with driving rope reductor (10), retarder (3), drg (2) and motor (1) link to each other, be provided with center shaft (22) in the intermediate gear hollow shaft (21), one end of center shaft (22) is a side outside driving rope reductor (10), by wet friction clutch (14) storage rope reel (13) is housed, the other end of center shaft (22) is opposite side outside driving rope reductor (10), be inserted in the double speed transcriber (7), this end dress also has the mono-directional overrun clutch (15) of two check switched in opposite, mono-directional overrun clutch on the interior disalignment of double speed transcriber (7) links to each other by engaging gear, steel rope (16) is wrapped on forerunner's rope sheave (12) and the rear-guard rope sheave (17), and is wrapped on the storage rope reel (13) by fixed pulley (18) again.

2. friction type hoisting mechanism according to claim 1 is characterized in that: front gear (11) and the identical symmetric offset spread of backgear (19) structure.