CN87200938U - Driving device for monocable traction lifting - Google Patents

Abstract

The utility model discloses an improved driving device for monocable traction lifting, in particular to a driving device for dragging and lifting by steel cables in the departments, such as industry, architecture, agriculture, etc. Few teeth difference planet-gear is adopted for speed reducing transmission, so the transmission ratio is great, and a single speed reduction box body is not arranged. The utility model has the advantages of compact structure, less parts, light weight, small ground occupation, convenient maintenance, light weight, low cost, and material saving. Compared with the common driving device for monocable traction lifting, the transmission efficiency is increased by 10 percent to 20 percent comparatively with a cylindrical worm-wheel worm reducer. The utility model is especially suitable for the lifting and driving device of the upright skip coal feeder of the boiler.

Description

Driving device for monocable traction lifting

A kind of single rope traction enhancement driving device particularly utilizes steel rope to make the driving device of towing, lifting usefulness in departments such as industry, building, agriculturals.

Current, single rope traction enhancement driving device commonly used is made up of electrical motor, plunging joint, worm reducer or gear reducer, output shaft, reel and bearing seat etc., and this class formation part is many, floor area is big, and consumable material is many, reduction ratio is restricted, and the manufacturing cost height; In addition, planet cycloid winch driving device being arranged still, is to adopt the repacking electrical motor to link to each other reducer output shaft direct drive reel with the planet cycloid retarder, whole transmission device all is contained in the reel, and this mechanism structure compactness is in light weight, but make difficulty, the cost height, and be not easy to maintenance.

Task of the present utility model provides a kind of improved single rope traction enhancement driving device, and the one stage gear ratio is big, compact conformation, and volume is little, and consumption material is few, and cost is low, makes simply, is convenient to installation and maintenance.

Task of the present utility model is finished as follows: adopt the horizontal-vertical double-purpose electrical motor, by by being contained in the eccentric bushing on the motor main shaft and being sleeved on single row roller bearing on the eccentric bushing, the uniform planetary wheel that has a plurality of pin-and-holes, be fixed on the inner gear on the electric motor end cap, the uniform output shaft that has a plurality of pin-and-holes, planetary pin-and-hole is all identical with pin-and-hole correspondence position and quantity on the output shaft one end annulus circle, and connection planetary wheel and output shaft, the small teeth number difference planet gear speed reduction gearing that the bearing pin that its quantity is identical with pin-and-hole constitutes, power is delivered on the reel by output shaft, realizes the lifting action of load again by the steel rope on the reel.The eccentric throw of eccentric bushing, the number of teeth of planetary wheel and inner gear is determined according to the small Tooth Number Difference Planetary Transmission principle.The diameter of planetary transmission pin-and-hole is two times of sums of the interior partially distance of pin diameter and eccentric bushing.

Below with reference to accompanying drawing the utility model is described in further detail.

Fig. 1 is the section-drawing of single rope traction enhancement transmission structures.

Single rope traction enhancement driving device running condition figure of the vertical type tipping bucket coaling machine that Fig. 2 boiler is used.

With reference to Fig. 1, eccentric bushing (3) is housed on the main shaft of horizontal-vertical double-purpose electrical motor (1), outside eccentric bushing (3), be set with single row roller bearing (10) again, be sleeved on the bearing (10) at the uniform planetary wheel (4) that has six pin-and-holes (20) on the disc, inner gear (2) is installed on the end cap of electrical motor (1), output shaft (7) one ends are for having annulus circle cap shape shape, and at annulus circle place uniform six pin-and-holes (19) that have, all the pin-and-hole (20) with planetary wheel (4) is identical with quantity for its correspondence position, pass pin-and-hole (19) and pin-and-hole (20) connects output shaft (7) and planetary wheel (4) by six bearing pins (5) identical with pin-and-hole (19) or (20) quantity, pivot pin (5) one ends have a location step.The longitudinal register of eccentric bushing (3) and output shaft (7) is realized by ball coro bearng (11).Output shaft (7) two ends are equipped with bearing (12) and bearing (15) respectively, and they are bearing in respectively again on big end cap (6) and the bearing seat (9).Captive joint after big end cap (6) and the cooperation of inner gear seam, and on two oilholes, a plug cock (13) is housed respectively.Electrical motor (1) and bearing seat (9) all are fixed on the frame (16).Reel (8) is equipped with at output shaft (7) middle part, connects by flat key or internal expansion type strigil.Bearing (15) is an entad globe bearing of biserial, and when bearing seat (9) height of center and electrical motor (1) height of center had pettiness difference, bearing (15) can the automatic compensation adjustment.Whole reducer arrangement is formed airtight sealing oil system by end cap, inner gear (2), big end cap (6) and the oil sealing (14) of electrical motor (1).

Referring to Fig. 2, at reel (8) steel rope that lift heavy is used is housed, steel rope one end is fixed on the reel, and the pulley that the other end passes on the connecting rod (17) of coal bunker dolly (18) is fixedly connected on the frame (16) again.When electrical motor (1) rotates, deceleration through the small teeth number difference planet gear speed reduction gearing, the cylinder (8) that drives on the output shaft (7) rotates, and furling and decontroling of generation steel rope realizes that coal bunker dolly (18) rises or walking downwards along the track of frame (16), reaches the purpose of delivering coal automatically.

Whole transmission device can connect separately by same frame (16) to be used, again shouldn't frame (16) and other main frame portion cover use, when magnet stopper of increase, can realize hard brake stop.

The utility model adopts the fewer differential teeth planetary deceleration transmission, and gearratio is big, and the primary speed-down ratio can be 50～80, thereby can reduce driving-chain, make simple in structure, the efficient height. Because no independent Gearbox, thereby it is few to reach constitutional detail, reduce the purpose of material consumption, and floor space is few, is easy for installation and maintenance. Adopt the present invention can reach general traction, hoisting velocity requirement, drum speed can reach 10～28 rev/mins, and power of motor can reach 0.2～4 kilowatt, and load is 0.1～4 ton, and rope speed can be per second below 25 millimeters. The more general single rope traction enhancement device of this device is compared, weight saving 40%, and cost reduces greatly, compares with worm type of reduction gearing, and transmission efficiency is high by 10～20%.

Claims (2)

1, a kind of single rope traction enhancement driving device is made up of electrical motor, retarder, output shaft, reel and steel rope, it is characterized in that by being contained in the eccentric bushing (3) on the motor main shaft and being sleeved on antifriction-bearing box on the eccentric bushing (3); The uniform planetary wheel (4) that has a plurality of pin-and-holes (20) on the disc, be fixed on inner gear (2) on the electric motor end cap, the uniform output shaft (7) that has a plurality of pin-and-holes (19), and the pin-and-hole (20) of planetary wheel (4) all identical with pin-and-hole (19) correspondence position and quantity on output shaft (7) the one end annulus circles, and connect planetary wheel (4) and output shaft (7), that its quantity and pin-and-hole (19), (20) are identical, also bearing pin (a 5) formation small teeth number difference planet gear speed reduction gearing of locating step arranged at one end.

2, driving device according to claim 1 is characterized in that electrical motor (1) is the horizontal-vertical double-purpose electrical motor.

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