CN201330107Y

CN201330107Y - Traction system of small-sized machinery room cargo lift

Info

Publication number: CN201330107Y
Application number: CNU2008202060632U
Authority: CN
Inventors: 谭平西
Original assignee: GUANGDONG WINONE ELEVATOR CO Ltd
Current assignee: Winone Elevator Co Ltd
Priority date: 2008-12-25
Filing date: 2008-12-25
Publication date: 2009-10-21
Anticipated expiration: 2018-12-25

Abstract

The utility model discloses a technical proposal of a traction system of small-sized machinery room cargo lift, which comprises a traction sheave 1, counterweight sheave 2, a crosshead sheave 3, a lift cage 4, a traction rope 5, a shaft way 7, a counterweight body 8 and a machinery room diversion sheave 6, wherein the machinery room diversion sheave 6 is arranged in a machinery room, and is wound with each of the sheaves into a lift traction system through the traction rope 5. The designed dimension of the shaft way 7 is the same with that of a cargo lift machinery room. Compared with the prior art, the traction system has the beneficial effect that the loading of a main shaft of the traction sheave 1 is reduced, the driving tongue of a traction machine is reduced, and the costs of building a big machinery room of users can be saved, a permanent-magnet synchronizing gearless is adopted to drive, and the power consumption can be saved. Since the beneficial effects, the traction system can be widely applied to a cargo lift, in particular to cargo lift with large-tonnage.

Description

Small room cargo lift traction system

Technical field

The utility model belongs to the elevator field, relates in particular to the traction system of cargo lift, specifically, relates to the design of small room cargo lift traction system.

Background technology

For cargo lift, large-tonnage cargo lift especially, its traction system design is adopted big machine room always and by Induction Motor-Driven, was arranged that the ratio of the running velocity of the running velocity of its hoist ropes 5 and car 4 was 2: 1 in 2: 1 of the worm and gear transmission.As shown in Figure 1, be a kind of known solution of 2: 1 of traction ratio, it comprises traction sheave 1, counterweight wheel 2, crosshead sheave 3, car 4, hoist ropes 5, counterweight body 8, crosshead sheave 3 is typically provided with 2 and all be positioned at the top of car 4, counterweight wheel 2 have only 1 and and counterweight body 8 form the Elevator weight sensor systems, traction sheave 1 is by hoist ropes 5 and counterweight wheel 2 and crosshead sheave 3 formation elevator traction systems, traction sheave 1 is by Induction Motor-Driven.Described asynchronous dynamo belongs to universal component, does not illustrate in Fig. 1.The design's defective is: (1) 2: 1 traction design makes that the main shaft load of traction sheave is big, and the driving torque of towing machine is big, and consumption of power is also bigger, does not meet the development tendency of current energy-conserving and environment-protective; (2) adopt Induction Motor-Driven, consumption of current is bigger, manys the power consumption of consumption 40% than synchronous dynamo usually; (3) owing to adopt asynchronous dynamo, so need to build big machine room, promptly the size of machine room adds large user's investment much larger than the size of hoistway, weakens the market competitiveness of lift product.

Summary of the invention

At the weak point of current techniques, the utility model is special to propose a kind of new cargo lift traction system design plan, i.e. small room cargo lift traction system, and it can not only address the deficiencies of the prior art, and also has other many useful effects.

Small room cargo lift traction system, comprise traction sheave 1, counterweight wheel 2, crosshead sheave 3, car 4, hoist ropes 5, hoistway 7, counterweight body 8, crosshead sheave 3 is positioned at the top of car 4, counterweight wheel 2 and counterweight body 8 form the Elevator weight sensor system, it also comprises machine room diversion sheave 6, and machine room diversion sheave 6 is arranged in the cargo lift machine room, and is wound in elevator traction system with traction sheave 1, counterweight wheel 2, crosshead sheave 3 respectively by hoist ropes 5; Hoistway 7 is the operation passage of cargo lift, its size and cargo lift machine room measure-alike.

In order to make whole traction system running smooth, usually, counterweight wheel 2 is provided with 2, and and counterweight body 8 is common constitutes the Elevator weight sensor system, crosshead sheave 3 is provided with 2 and be distributed in the top of car 4, and the number of machine room diversion sheave 6 is not particularly limited, and is more than 2 or 2.As 2,3 etc.The setting of above-mentioned three kinds of number of wheels, as long as it is smooth to satisfy whole traction system running, the normal traction of finishing car 4 gets final product.

In order to realize goal of the invention of the present utility model, reach the small room elevator, traction sheave 1 of the present utility model is driven by the permanent-magnet synchnorous gearless dragging machine that is arranged in the cargo lift machine room, this permanent-magnet synchnorous gearless dragging machine is applied among the man lift usually, in Cargo Lift, especially seldom use in the large-tonnage cargo lift, because of it belongs to the especially general purpose module among the man lift of elevator, so repeat no more, in this Figure of description, also do not illustrate.

Because above-mentioned setting, make the utility model realize its goal of the invention, reach traction ratio 4: 1 and be the cargo lift of small room, its beneficial effect is: (1) is adopted and is arranged that 2: 1 layouts of main shaft load ratio that not only make traction sheave 1 reduce 50% at 4: 1, and make the driving torque of towing machine reduce 50%, can improve the load carrying ability of elevator; (2) adopt the small room design, can be the user and reduce the expense of building big machine room, improve the competitiveness of product in market; (3) in Cargo Lift, adopt permanent magnetism synchronization gear wheel free to drive,, can save about 40% power consumption, energy-conserving and environment-protective corresponding to the Induction Motor-Driven in the background technology.

Because above-mentioned beneficial effect, the utility model is widely used in the Cargo Lift, especially in the large-tonnage cargo lift.

Description of drawings

Fig. 1 is the traction system structural representation that prior art is arranged at 2: 1;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is a cross-sectional view of the present utility model.

Identifier declaration: 1--traction sheave; 2--counterweight wheel; The 3--crosshead sheave; The 4-car; The 5--hoist ropes; 6-machine room diversion sheave; The 7-hoistway; 8--counterweight body.

The specific embodiment

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

As shown in Figure 2, small room cargo lift traction system, comprise 1

traction sheave

1,2

counterweight wheels

2,2 crosshead sheaves 3, car 4,

hoist ropes

5,2 machine room diversion sheaves 6,

counterweight body

8,2 crosshead sheaves 3 are distributed in the top of

car

4,2 counterweights wheel 2 and counterweight body 8 form the Elevator weight sensor systems, traction sheave 1 is wound in elevator traction system by hoist ropes 5 and above-mentioned several other wheels, the propulsive effort of traction sheave 1 is from permanent-magnet synchnorous gearless dragging machine, permanent-magnet synchnorous gearless dragging machine and 2 machine room diversion sheaves 6 all are arranged in the cargo lift machine room, this permanent-magnet synchnorous gearless dragging machine is applied among the man lift usually, in Cargo Lift, especially do not use in the large-tonnage cargo lift, because of it belongs to general purpose module, so in Fig. 2, do not illustrate.Machine room is not under the jurisdiction of elevator itself usually, so do not illustrate in the utility model yet.

Innovation setting just because of the utility model traction system, the ratio that is the running velocity of the running velocity of hoist ropes 5 and car 4 is 4: 1, make the main shaft load ratio arrange at 2: 1 and reduce 50%, the driving torque of towing machine reduces 50%, so can adopt the permanent-magnet synchnorous gearless dragging machine of widespread use in the man lift in the present embodiment equally.This behave makes the consumption of current of elevator reduce 40% than Induction Motor-Driven again.

As shown in Figure 3, be cross-sectional view of the present utility model.Described 2

counterweights wheel

2,2 crosshead sheaves 3, cars 4 all are arranged in the

hoistway

7, and 2 machine room diversion sheaves 6 are arranged in the machine room.Traction sheave 1 places machine room usually, does not illustrate in Fig. 3, and hoist ropes 5 is wrapped on each wheel, also illustrates in Fig. 3.Hoistway 7 is operation passages of elevator, measure-alike (because of machine room is not under the jurisdiction of elevator itself usually, so do not illustrate in the utility model) of its size and machine room is the small room elevator, reduce the expense that the user builds big machine room, strengthened the utility model competitiveness of product in market.

Claims

1, small room cargo lift traction system, comprise traction sheave (1), counterweight wheel (2), crosshead sheave (3), car (4), hoist ropes (5), hoistway (7), counterweight body (8), described crosshead sheave (3) is positioned at the top of described car (4), described counterweight wheel (2) and described counterweight body (8) form the Elevator weight sensor system, it is characterized in that: also comprise machine room diversion sheave (6), described machine room diversion sheave (6) is arranged in the cargo lift machine room, and by described hoist ropes (5) respectively with described traction sheave (1), counterweight wheel (2), crosshead sheave (3) is wound in elevator traction system; Described hoistway (7) is the operation passage of cargo lift, its size and cargo lift machine room measure-alike.

2, small room cargo lift traction system according to claim 1, it is characterized in that: described machine room diversion sheave (6) is set to more than 2 or 2 usually.

3, small room cargo lift traction system according to claim 1 and 2 is characterized in that: described counterweight wheel (2) is provided with 2 usually, and described crosshead sheave (3) is provided with 2 usually.

4, small room cargo lift traction system according to claim 1 and 2 is characterized in that: described traction sheave (1) is driven by the permanent-magnet synchnorous gearless dragging machine that is arranged in the cargo lift machine room.