CN2861439Y

CN2861439Y - Worm gearing capable of multinomial interlocking

Info

Publication number: CN2861439Y
Application number: CN 200520129475
Authority: CN
Inventors: 金朝晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-21
Filing date: 2005-10-21
Publication date: 2007-01-24
Anticipated expiration: 2015-10-21

Abstract

Disclosed is a gearing device that can achieve synchronized driving, which consists of a reducer group structured by worm wheels and hollow worms. The device further includes a rotation connection sleeve, a spline shaft and a plurality of cases; the spline shaft is a rotating shaft with spline; one group of hollow worms and worm wheels are fixed in one case, the hollow worm is covered on the spline shaft, both ends of the rotation connection sleeve are covered respectively on the hollow worm and the spline shaft. A plurality of reducers may be easily clustered on a rotation shaft, when the rotation shaft is rotating under the drive of external force, all the reducer rotation shafts will rotate with the same speed vertical to the worm wheel either in the same or different part to achieve synchronized driving. In addition to long service life and high reliability, said device can be used on large and medium louver for synchronized driving as gearing, which greatly simplifies the design and the manufacture cost thereof. Besides, the reducer can be used as universal reducer in normal curtains.

Description

Worm gearing that can multinomial interlock

Technical field

The utility model relates to a kind of mechanical driving device, particularly a kind of worm gearing.

Background technology

Worm gearing is widely used at mechanical field as a kind of commutation, speed change gear.But at present usually a used worm gearing can only once turn to, and rotation direction fixes, and applied occasion is limited.

In blind, make blinds carry out the mode that interlock is adopted, at present, mainly contain two kinds: a kind of is the crank interlock.In this interlock mode, an end of every blinds is equipped with crank connecting link spare entirely, and connector links to each other with drive link, and connecting rod drives all crank connector actions under external force, thereby reaches the effect of blinds interlock.The crank connector in design and to produce all be very complicated, and the blinds of different size is produced the crank connector of different size again, each other can not be general, can prolong the cycle of production undoubtedly again, another kind is the drag-line interlock, this interlock mode is that all ends are coupled together with two drag-lines, and power effect outside reaches the effect of interlock, and this undoubtedly mode is in the reliability of interlock and all be lower on the life-span.

The utility model content

The purpose of this utility model just is: the worm gearing that provides a kind of a plurality of output shaft to link simultaneously with identical direction or different directions.

For solving the problems of the technologies described above, technical scheme provided by the utility model is:

A kind of worm gearing that can multinomial interlock comprises the reducer group that several are made up of worm gear and worm screw, and described worm screw is hollow worm screw; Device also comprises the cover that is rotationally connected, splined shaft and several box bodys; Described splined shaft is a rotating shaft that is provided with spline; Described one group of hollow worm and worm wheel are fixed in the box body, and hollow worm set is on splined shaft, and the cover two ends that are rotationally connected are enclosed within respectively on hollow worm screw and the splined shaft.

The end of described hollow worm screw is the column gear; The described cover endoporus that is rotationally connected is divided into two sections, and one section roller gear with hollow worm screw matches, and another section matches with splined shaft.

Described box body side is provided with boss, and boss is provided with locating hole.

Described worm gear axle center is provided with through hole, is provided with spline in the through hole; Described device also comprises shaft coupling, and spline is established in the shaft coupling outside, and shaft coupling is connected with worm gear, the inboard spline axis hole that forms of this shaft coupling.

According to the technical scheme that the utility model provides, it has following advantage with respect to prior art:

This reducer adopted hollow worm screw and be in transmission connection the cover after, a plurality of reducer groups just can be serially connected on the power transmission shaft easily, when power transmission shaft rotates under the effect of external force, thereby all reducer turning cylinders will rotate the effect that reaches interlock with same orientation or different orientation with the same slow-speed of revolution on the direction of vertical worm gear.

Because not only reliable transmission of linkage structure that this reducer constituted, the life-span is long, in large and small blinds interlock all optional it as transmission device, design and cost of production thereby simplified blinds greatly.In addition, this reducer also can be made the universal speed reducer in the general curtain.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and embodiments:

Fig. 1 is an assembly drawing of the present utility model;

Fig. 2 is the cover sectional axonometric drawing that is rotationally connected of the present utility model;

Fig. 3 is one of user mode reference diagram of the present utility model;

Fig. 4 is two of a user mode reference diagram of the present utility model;

Fig. 5 is three of a user mode reference diagram of the present utility model.

The figure number explanation:

A reducer group 1 worm gear 11 through holes

12 splines, 2 hollow worm screw 21 column gears

3 are rotationally connected overlaps 4 splined shafts, 5 box bodys

51 boss, 52 locating holes, 6 shaft couplings

61 splines, 62 spline axis holes, 7 side levers, 8 blinds

The specific embodiment

A kind of worm gearing that can multinomial interlock as shown in Figure 3, comprises the reducer group A that several worm gears and worm screw are formed.

Assembly drawing of the present utility model as shown in Figure 1, worm screw is hollow worm screw 2.In the present embodiment, the described device of present embodiment also comprises be rotationally connected cover 3, splined shaft 4 and several box bodys 5; Splined shaft 4 is the rotating shaft that evenly is provided with several splines on the circumference.The end of hollow worm screw 2 is a column gear 21.Cover 3 endoporus that are rotationally connected are divided into two sections, and as shown in Figure 2, one section roller gear shape with hollow worm screw matches, and another side and splined shaft shape match.The reducer group A that hollow worm screw 2 and worm gear 1 are formed is fixed in the box body 5, and hollow worm screw 2 is enclosed within on the splined shaft 4, and cover 3 two ends that are rotationally connected are enclosed within respectively on hollow worm screw 2 and the splined shaft 4.Box body 5 sides are provided with boss 51, and boss 51 is provided with locating hole 52.The worm gear axle center is provided with through hole 11, is provided with spline 12 in the through hole 11; The described device of present embodiment also comprises shaft coupling 6, establishes spline 61 on the shaft coupling 6, is connected these shaft coupling 6 inner spline axis holes 62 that form with worm gear 1 by the spline 12 in the through hole 11.

In actual applications, such as being used for blind,, be a kind of novel linkage by the linkage that it constitutes, make the more reliably more simple transmission device of blinds transmission.During use, fix a side lever 7 in the spline axis hole 62 on the shaft coupling 6, fixing blinds 8 on side lever 7 axial directions, as shown in Figure 3, the reducer group A that each worm gear and worm screw are formed adopts identical specification and gearratio, when rotating splined shaft 4, fixedly connected each reducer group A rotates with the phase same rate on the drive splined shaft 4, thereby drive each blinds 8, open simultaneously or close, the motion neat appearance.

The utility model also can be according to the difference of application scenario, in the needs interlock but under the different situation of each output shaft rotating speed, such as clock and watch, and the reducer group A that each worm gear and worm screw are formed adopts different gearratios, as shown in Figure 4.

Because box body 5 sides are provided with boss 51, boss 51 is provided with locating hole 52, and the reducer group A with each worm gear and worm screw composition in the time of also can assembling adopts different start angles, by locating hole 52, is fixed on the support of side.So just form the form of output shaft different directions, thereby reached the purpose of multidirectional interlock output.As shown in Figure 5.

Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique is under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, such as, worm gear can adopt the inner form that directly forms the spline axis hole, and without shaft coupling, also can reach identical purpose, therefore, all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims

1, a kind of worm gearing that can multinomial interlock, it is characterized in that: comprise the reducer group that several are made up of worm gear and worm screw, described worm screw is hollow worm screw; Device also comprises the cover that is rotationally connected, splined shaft and several box bodys; Described splined shaft is a rotating shaft that is provided with spline; Described one group of hollow worm and worm wheel are fixed in the box body, and hollow worm set is on splined shaft, and the cover two ends that are rotationally connected are enclosed within respectively on hollow worm screw and the splined shaft.

2, worm gearing that can multinomial interlock according to claim 1, it is characterized in that: the end of described hollow worm screw is the column gear; The described cover endoporus that is rotationally connected is divided into two sections, and one section roller gear with hollow worm screw matches, and another section matches with splined shaft.

3, worm gearing that can multinomial interlock according to claim 1, it is characterized in that: described box body side is provided with boss, and boss is provided with locating hole.

4, worm gearing that can multinomial interlock according to claim 1, it is characterized in that: described worm gear axle center is provided with through hole, is provided with spline in the through hole; Described device also comprises shaft coupling, and spline is established in the shaft coupling outside, and shaft coupling is connected with worm gear, the inboard spline axis hole that forms of this shaft coupling.