CN201301155Y

CN201301155Y - Synchronic belt transmission elevator

Info

Publication number: CN201301155Y
Application number: CNU2008202013665U
Authority: CN
Inventors: 赵小龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2009-09-02
Anticipated expiration: 2018-09-28

Abstract

The utility model discloses a synchronic belt transmission elevator, which comprises a driving device with a transmission shaft, a guiding pulley and a synchronic belt which is wound on the transmission shaft and the guiding pulley, wherein, one end of the synchronic belt is connected with a carriage, and the synchronic belt is an arc basal ridge cut synchronic belt, and the transmission shaft is provided with a plurality of transmission teeth which are engaged with the arc basal ridge cut synchronic belt. The synchronic belt transmission elevator has high transmission performance, low energy consumption, low cost, low noise and small vibration.

Description

Synchronous strap drive elevator

Technical field

The utility model relates to a kind of lifting transportation device, relates in particular to a kind ofly to be used for manned or the cargo-carrying lift facility.

Background technology

Elevator is widely used in building such as in building, the mansion etc.Existing a kind of elevator relies on steel rope as drive disk assembly.As shown in Figure 1, this traditional steel wire roped elevator 20 is arranged in the path 10.This elevator 20 comprises motor 22, leading sheave 24.Described motor 22 and leading sheave 24 all are arranged in the installation room 12 of described path 10, and are wound with steel rope 26 on described motor 22 and the leading sheave 24.One end of described steel rope 26 is connected with the car 28 that is used for manned or loading, and the other end is connected with counterweight 21.Generally, described car 28 has weight inequality with described counterweight 21.Described motor 22 rotates, and produces certain tractive force F1, and the product of the radius of gyration r1 of the output shaft (not shown) of this tractive force F1 and described motor 22 is the rotating torque m1 that this motor 22 produces.Be m1=F1Xr1.This rotating torque m1 acts on described steel rope 26, makes described steel rope 26 reach with these steel rope 26 bonded assembly cars 28 and moves up or down.Described tractive force can be expressed as: F1=μ mg, and wherein μ represents the coefficient of static friction between described steel rope 26 and the motor rotation axis, and mg represents the weight of described car 28.By this formula as can be known, tractive force and coefficient of static friction μ and car weight are in direct ratio.In addition, in above-mentioned elevator design, the rope both sides have tension force T1 and T2, and must satisfy Euler's formula, i.e. T1/T2=e ^{F α}, here, e represents natural constant, and f represents coefficient of static friction (being above-mentioned coefficient of static friction μ), and α represents the cornerite of rope.If do not satisfy this Euler's formula, then rope may skid, and car can't be risen.Yet because the wirerope diameter very little (generally its diameter is about 1.5mm) of this traditional elevator is subjected to the influence of steel rope and the material of motor rotation axis own simultaneously, described coefficient of static friction is very little, is generally 0.09, therefore causes the tractive force deficiency.For increasing traction, the counterweight that has weight inequality with described car is installed in the other end of described steel rope, and under the combined action of described car and counterweight, described tractive force increases, thereby can draw described car up-and-down movement like this.Yet this dependence is provided with the structure that counterweight comes increasing traction causes the bearing power of motor to increase, and therefore causes bigger energy consumption, causes driving efficiency lower; On the other hand, in this traditional structure design, be to guarantee that safety, the turning cylinder of described motor need have bigger diameter (be generally wirerope diameter about 40 times), cause needs to use the bigger motor of volume like this, thereby increased the elevator cost.

Another kind of improved elevator uses belt as drive disk assembly.Shown in Fig. 2 a-2b, have a plurality of steel ropes 35 in the belt 36 of this belt driven type elevator 30, be used to strengthen the structural strength of belt 36.Because the coefficient of static friction between the turning cylinder of described belt 36 and described motor 32 (figure does not show) is bigger, the weight that therefore needn't increase car 28 and counterweight 21 can obtain bigger tractive force F2.Like this, can alleviate the weight of described car 28 and counterweight 21 to a certain extent, thereby reduce the bearing power loss of motor 32; Simultaneously the volume of described motor also can be very big just can meet requirements.Yet the elevator of this structure still can't obtain higher driving efficiency, and when work noise very big, be easy to generate bigger vibration.Thereby, be necessary to provide a kind of synchronous strap drive elevator that addresses the above problem.

The utility model content

The purpose of this utility model provides a kind of synchronous strap drive elevator, and it has higher transmission performance, lower energy consumption and cost, and noise is little, and transmission is stable.

To achieve these goals, the utility model provides a kind of synchronous strap drive elevator, comprise actuating device, leading sheave and be wrapped in synchronous band on described transmission shaft and the leading sheave with transmission shaft, the described end of being with synchronously connects car, described being with synchronously forms a plurality of circular arcs and the nicked driving cog in top, form on the described transmission shaft with described synchronously with on driving cog ingear driving cog.

Further, be equipped with described driving cog on two surfaces of described synchronous band, cooresponding, two actuating devices with described transmission shaft are set up, the driving cog of described synchronous band respectively with the transmission shaft of described two actuating devices on the driving cog engaged transmission.

Further, the other end of described synchronous band is connected with counterweight.

The beneficial effects of the utility model are: because described being with synchronously forms a plurality of circular arcs and nicked driving cog, and the driving cog that formation cooperates with this driving cog on the transmission shaft of described actuating device, by described synchronously with on driving cog and the intermeshing of driving cog on the transmission shaft of actuating device realize the dipping and heaving of car, thereby obtain bigger tractive force, so just can reduce the weight of counterweight greatly, even under the situation of counterweightless, also can obtain enough tractive forces, thereby have higher transmission performance, reduced the cost and the energy consumption of elevator.The noise that circular arc and the engagement of nicked driving cog produce is very little, the noise emission when having reduced this elevator work.On two surfaces of described synchronous band, be equipped with described circular arc and nicked driving cog, can realize that described synchronous band is meshed with the transmission shaft of two actuating devices, thereby improve the transmission performance of this synchronous strap drive elevator.

Below in conjunction with accompanying drawing, describe the utility model in detail by preferred embodiment.

Description of drawings

Fig. 1 is the structural plan figure of existing steel rope driving type elevator;

Fig. 2 a is the structural plan figure of existing belt driven type elevator;

Fig. 2 b is the cross section structure figure of the belt of elevator shown in Fig. 2 a;

Fig. 3 is the structural plan figure of an embodiment of the synchronous strap drive elevator of the utility model;

Fig. 4 is the synchronous band partial side view of synchronous strap drive elevator shown in Figure 3;

Fig. 5 is the partial side view of synchronous band of another embodiment of the synchronous strap drive elevator of the utility model.

The specific embodiment

With reference to figure 3--Fig. 4, among the embodiment of the synchronous strap drive elevator of the utility model, described synchronous strap drive elevator 40 is arranged in the path 10, and this elevator 40 comprises motor 43, certainly also can adopt other actuating device in other embodiment of the utility model; This elevator 40 also comprises the leading sheave 44 that is used for the belt guiding; Described motor 43 and leading sheave 44 all are arranged in the installation room 12 of described path 10, and be wound with on described motor 43 and the leading sheave 44 and be with 42 synchronously, describedly be connected with the car 45 that is used for manned or loading with an end of 42 synchronously, the other end is connected with counterweight 41.

As shown in Figure 4, described synchronously with the tooth 421 and the teeth groove 422 that form circular arc on 42, the top of the tooth 421 of described circular arc is provided with otch 423.

As shown in Figure 3, described motor 43 has motor transmission shaft 46, described motor transmission shaft 46 be provided with a plurality of with synchronously with on tooth 421 and teeth groove 422 teeth groove and the driving cog that coincide, thereby make described transmission shaft 46 be with 42 transmissions of intermeshing synchronously with described.When described motor 43 rotated, the motor transmission shaft 46 on the described motor 43 was with 42 transmissions of intermeshing synchronously with described, and then drove this and be with 42 to move synchronously, made to be connected in describedly can move up and down the position with the car 45 of 42 1 ends synchronously.

Among other the embodiment of the synchronous strap drive elevator of the utility model, also can adopt a kind of two-sided synchronous band, as shown in Figure 5, described synchronously with the tooth 421 and the teeth groove 422 that all form circular arc on two surfaces about in the of 42, the top of the tooth 421 of described circular arc is provided with otch 423.Be provided with two motors among this embodiment, identical among described motor and first embodiment, described synchronously with two active flankes of 42 respectively with two drive axle of motor engaged transmission, therefore improved the driving efficiency of this elevator.

In this embodiment, owing to rely on the transmission of static friction to have higher transmission performance in the nicked tooth transmission engage ratio of the circular arc conventional art, therefore needn't be as conventional art, rely on the weight that increases car or counterweight to come increasing traction, like this under the very little situation of counterweight weight, even do not having under the situation of counterweight, and needn't use the bigger motor of torque, can obtain bigger tractive force, promptly the synchronous strap drive elevator of the utility model can reduce the energy consumption and the cost of elevator; Simultaneously, the noise that the nicked tooth engagement of circular arc produces is very little, the noise emission when having reduced this elevator work.

Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1. synchronous strap drive elevator, comprise actuating device, leading sheave and be wrapped in synchronous band on described transmission shaft and the leading sheave with transmission shaft, the described end of being with synchronously connects car, it is characterized in that: described being with synchronously forms a plurality of circular arcs and the nicked driving cog in top, form on the described transmission shaft with described synchronously with on driving cog ingear driving cog.

2. synchronous strap drive elevator according to claim 1, it is characterized in that: be equipped with described driving cog on two surfaces of described synchronous band, cooresponding, two actuating devices with described transmission shaft are set up, the driving cog of described synchronous band respectively with the transmission shaft of described two actuating devices on the driving cog engaged transmission.

3. synchronous strap drive elevator according to claim 1, it is characterized in that: the other end of described synchronous band is connected with counterweight.