CN2165121Y - Screw driven coupling for feed system - Google Patents

Abstract

The utility model relates to a screw driven coupling for a feed system for conveying powder particles. Mainly the end of a screw is provided with a bevel gear. At the same time, the motor driven shaft end of a rear rail vehicle is provided with an inward bevel gear matched with an inward concavity. Thus, when the motor driven shaft and the screw rod are connected, the effect of correctly positioning can be obtained. In addition, the shaft coupling can be precisely and reliably realized.

Description

Screw driven coupling for feed system

The utility model relates to a kind of screw rod that is used for the feed system of powder conveying and drives coupling device.

Existing feed system, mainly be to be provided with a plurality of (may reach up to a hundred) powder groove, and be provided with screw rod in the lower end of each powder groove for output usefulness, export the powder that is stored in the powder groove by the rotation of each screw rod, in this type of the most ancient system design, its be with separately independently actuating device the driving power of each screw rod is provided, this kind design is because required actuating device numbers of poles is many, cause the raising of whole manufacturing cost, its fault rate is upwards increased virtually; The quantity of the powder groove that it adopted must expand its quantity usually under user demand separately in this type systematic again, if adopt this kind independently design of actuating device separately, then it more causes the difficulty in many cooperations when expanding; Moreover, because the design of the actuating device of this type of device is quite complicated, thereby make it in maintenance and maintenance, all cause many unnecessary puzzlements, so the ancient design of class is bright in using manufacturer to adopt at present.

In the progressive design of this type systematic, for the cost that reduces integral device and the expense of maintenance, all change with single actuating device and drive all screw rods, certainly it must be provided with a rail vehicle at the rear side of system and settle its actuating device, and the time be able to moving by rail vehicle at any time in utilization, its actuating device can be matched with arbitrary screw rod, the power of powder output is provided; But by the structure view of this class actuating device it, it mainly is to adopt gear-driven mode, because this type of powder Weighing system in use, must have quite accurate output control, thereby the rotation amount of necessary accurate its screw rod of control, so device such as power-transfer clutch can't be set, make the greatest problem that is combined into each big manufacturer between its actuating device and screw rod between its screw rod and actuating device.

Combining between existing this type of system driving device and screw rod is broadly divided into two kinds of designs, wherein a kind of is the mode that adopts crown gear to be meshed, it is the applying of plane formula, the tooth of crown gear is to distribute radially simultaneously, thereby the displacement of its rail vehicle must be very accurate, otherwise the crown gear of its drive shaft end can't be meshed with the crown gear of screw rod end, the operation of total system is interrupted, can when driving, make its crown gear impaired even, but because rail vehicle necessary constantly shift position when utilization, no matter it is because the dust fall or the influence of parts abrasion, all might make the accurate position of arrival that its rail vehicle can't be appropriate, can't avoid so the generation of its coupling device fault can be said so; Another kind more widely uses, it then is the mode that adopts helical wheel to be meshed, because its face of joint is one to be the design on inclined-plane with screw rod and axle drive shaft, thereby it can reduce the requirement of its degree of precision on the location, but when being meshed with helical wheel owing to helical wheel, will inevitably produce the component of a side direction, it easily has influence on the location of rail vehicle again, especially rail vehicle is under long-term stressed situation, its detent mechanism is affected, so the design of class coupling device is still perfect inadequately, and still has improved necessity.

Main purpose of the present utility model is: provide a kind of screw rod of feed system to drive coupling device, it singly can not guarantee to be able to certain being connected between motor drive shaft and screw rod, a excellent correcting effect also can when carrying out connecting shaft, it be provided simultaneously, even rail vehicle can't move to the location accurately because of external factor, also can be when motor drive shaft be connected with the screw rod end, structure by himself provides the effect of correcting rail vehicle, thereby can overcome the problem on the existing location in all existing these class formations.

The utility model provides a kind of screw rod of feed system to drive coupling device, and it is that motor is installed on rail vehicle, and can drive each screw rod rotation start by this motor, it is characterized in that:

The drive shaft end of motor is provided with the interior crowngear of an inner concave shape;

Each screw rod end is respectively arranged with a crowngear that can be meshed with crowngear in the motor driven axle head;

By this, in the time of can being meshed with the crowngear of screw rod end at the interior crowngear of motor driven axle head, reach the dual purpose that accurate engagement also provides the correcting effect simultaneously.

By above explanation as can be known, effect of the present utility model is: it only drives all screw rods with single group actuating device, thereby the setting of more ancient many groups actuating device will come to such an extent that simplify and economy, the utility model is with crowngear and appropriate the cooperating of interior crowngear again, more accurate and certain when making motor drive shaft and screw rod connecting shaft, also can reach simultaneously the effect of a correcting position, make coupling device can not be subjected to influence on the rail vehicle locating bias, thereby can make total system more smooth and easy and make things convenient in utilization, be quite excellence and the design of practicality in fact.

Further specify architectural feature of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is a rail vehicle schematic appearance of the present utility model.

The head-down position scheme drawing that Fig. 2 matches with the screw rod end for motor drive shaft of the present utility model.

Fig. 3 and Fig. 4 are the action scheme drawing that the interior crowngear of motor driven axle head of the present utility model is meshed with the crowngear of screw rod end.

See also shown in Figure 1, it is rail vehicle 10 schematic appearance of the present utility model, can see rail vehicle 10 of the present utility model thus among the figure with general existing identical, also be to be arranged on the track 11, and be provided with a motor 20 in rail vehicle 10, this motor 20 also is to be placed on the track 21, make this motor 20 can do the displacement of front and back, and can be connected mutually with screw rod 31, characteristic of the present utility model is to be provided with a crowngear 32 at screw rod 31 ends, and be provided with crowngear 23 in the inner concave shape that matches in motor 20 axle drive shafts 22 ends, and when being connected mutually, the two is meshed accurately, also can reach a excellent correcting effect simultaneously.

The utility model motor 20 axle drive shafts 22 by Fig. 2 are seen it with the head-down position scheme drawing that screw rod 31 ends match, when the configuration state that can further understand relevant the utility model coupling device, screw rod 31 of the present utility model as can be seen is to set in a row in this figure, and be equipped with a crowngear 32 in the end of each screw rod 31, its promptly be in order to rail vehicle 10 on actuating device be connected mutually, when rail vehicle 10 moves to the location, and make the crowngear 32 relative timings of axle drive shaft 22 with a screw rod 31 ends of motor 20, promptly as shown in Figure 3, can CD-ROM drive motor 20 move forward on track 21 this moment, and the interior crowngear 23 that makes axle drive shaft 22 ends is meshed with the crowngear 32 of screw rod 31 ends (as shown in Figure 4), to reach the purpose of connecting shaft, by shown in the action scheme drawing of Fig. 3 and Fig. 4 as can be seen, when rail vehicle 10 of the present utility model is moving to a certain screw rod 31 rears, because the abrasion of parts or other factor affecting, and can't reach accurate localization the time, push ahead along track 21 at motor 20, and the interior crowngear 23 that makes axle drive shaft 22 ends is when being meshed with the crowngear 32 of screw rod 31 ends, also can close the effect that a correcting is provided by the swirl of interior crowngear 23 and crowngear 32, and make being meshed of the two perfect more, thereby can overcome the disappearance that existing this type of device causes system job to be obstructed because of the problem on the location.

In addition institute's stack-mounted sensing dish 24 is in order to match with perceptron 25 on the motor 20 on the utility model motor 20 axle drive shafts 22, the position that use the revolution of accuracy control motor 20 and start, stops, 26 of displacement perceptrons in track 21 the place aheads are the running fix in order to control rail vehicle 10 again; 33 of push rods in screw rod of the present utility model 31 central authorities have the dampproof cover effect that promotes the place ahead powder equipped at outlet port again.

Claims (1)

1, a kind of screw rod of feed system drives coupling device, and it is that motor is installed on rail vehicle, and drives each screw rod spinning movement by this motor, it is characterized in that:

The drive shaft end of motor is provided with the interior crowngear of an inner concave shape;

Each screw rod end is respectively arranged with a crowngear that is meshed with crowngear in the motor driven axle head.

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