CN2328783Y - Direct linked electric open and close machine for rolling curtain door - Google Patents

Abstract

The utility model relates to a direct linked electric open and close machine for a rolling curtain door, belonging to an accessory device for the rolling curtain door, which is used for opening and closing the rolling curtain door particularly for opening and closing a fireproof rolling curtain door. The utility model is characterized in that the machine is composed of a single phase series excitation commutator electric motor, a single stage gear speed reducer, a double stage gear speed reducer, a worm wheel worm rod reducer, a normally closed clutch, a steel wire flexible shaft, a normally open jaw clutch, a shifting fork and an overspeed governor. The utility model has the advantages of compact structure, small size, light weight, small space occupation, convenient installation, convenient operation, high drive efficiency, small reversal damping torque, high automatic shut-off sensitivity, etc. The utility model can be installed on the supporting seat plate of the curtain door.

Description

The directly connected-type electric rolling door opens and closes machine

A kind of directly connected-type electric rolling door opens and closes machine, belongs to the auxiliary equipment technical field of rolling door, is mainly used in the opening and closing of opening and closing rolling door, particularly fire resistance rolling shutter door.

In the prior art, electric rolling door common on the market opens and closes machine, and its transmission of power is all by the sprocket wheel chain, and its mode of braking then adopts electromagnetic braking mechanism.During work, connect power supply, electromagnetic brake is opened, and the motor rotation and the transmission of power that will open and close machine by planetary reduction gear, sprocket wheel, chain etc. are finished the unlatching of rolling door or closed to the spool of rolling door.When external power source outage needs to open or close rolling door the time, then need to open the lid of electromagnetic brake by manpower, use the handle drives motor shaft, make a unlatching or close.This shows that existing rolling door opens and closes not only heaviness of machine, the position that takes up room is big, power transmission efficiency is low, and it causes its cost higher with corresponding parts such as also need setting up support being connected of rolling door, particularly must use independently brakes-electromagnetic braking, make the volume of himself, weight, the all corresponding increase of cost, when existing rolling door switching machine is used for fire resistance rolling shutter door, under finishing powering-off state during automatic closing function, because its transmission efficiency is low, the reverse damping torque is excessive, cause automatic closing function sensitivity low, poor reliability, and the size requirements of opposite house body is relatively stricter.

The purpose of this utility model is to provide a kind of compact conformation, and volume is little, and is in light weight, directly is connected with rolling door, can solve existing variety of issue in the prior art, and fire safety is reliable, and cost is low, and the directly connected-type electric rolling door of applied range opens and closes machine.

Design feature according to rolling door, at existing questions in the existing technology, basic design of the present utility model is: by a gear reduction unit with the transmission of torque of single-phase series excitation commutator machine to worm type of reduction gearing, the output of this worm type of reduction gearing connects a normally closed clutch, its interior sheet is connected together with the input gear of subordinate's gear reduction unit, and the output gear of this gear reduction unit is connected with the spool of rolling door and by its cabinet shell whole switching machine is fixed in propping up on the seat board of rolling door.When motor rotation, transmission of torque that motor produced is finished the unlatching of door to the spool of rolling door or close by above-mentioned parts.Another input of above-mentioned worm type of reduction gearing connects a normally disengaged clutch that is connected with Bowden cable again, clutch closes during extraneous the outage, manpower drives Bowden cable, and the transmission of torque that manpower is produced by the switching machine is finished the unlatching of door to the spool of rolling door or closed.Refill a shift fork on the above-mentioned normally closed clutch, stirring this shift fork can make worm type of reduction gearing separate with the subordinate gear reduction unit, the reverse self-locking action forfeiture of worm and gear, the downslide torque that rolling door produces by deadweight overcome the damping torque that reducer and limiter of speed produce and closing automatically of descending and finish.

Directly connected-type electric rolling door described in the utility model opens and closes machine, constitute by motor 1 and reducer 10, it is characterized in that its above-mentioned motor 1 of this machine is single-phase series excitation commutator machine, above-mentioned reducer 10 is the twin-stage gear reduction unit, and this machine also is equipped with in addition: the end single gear reducer 2 that the output shaft 4 of the other end by worm type of reduction gearing 3 is connected with normally closed clutch 5 that is connected with above-mentioned motor 1, the one end normally disengaged clutch 16 that the other end is connected with Bowden cable 17 that is connected with another input of above-mentioned worm type of reduction gearing 3, one end is fixed on the other end on the box cover 19 of above-mentioned reducer 10 and is hooked in the outer plate cavity of above-mentioned clutch 5 in order to overcome the clutch shifter 18 that holddown spring 20 elastic force on the clutch 5 make clutch separation, with and speed limiting gear wheel shaft 9 be meshed with gear 8 on the input gear shaft 7 that is contained in above-mentioned reducer 10 in order to limit the limiter of speed 21 of door body decrease speed.The interior sheet of above-mentioned normally closed clutch 5 is placed on the side's cover 6 that is sleeved on the above-mentioned input gear shaft 7, and the output gear wheel 11 of reducer 10 is sleeved on the spool 12 of rolling door, 13 of its upper boxes are placed on the location bearing 14 that is contained in this spool 12, and complete machine is fixed on rolling door and props up on the seat board 15.

When being used for the non-fireproof common rolling door and the machine that do not open and close and descending function automatically, can remove above-mentioned normally closed clutch 5, side's cover 6 and output shaft 4, and shift fork 18, the input gear shaft 7 of above-mentioned twin-stage gear reduction unit 10 can be directly be connected with the worm gear of above-mentioned worm type of reduction gearing.

Outstanding advantage of the present utility model is: compact conformation, volume is little, in light weight, can directly be contained in rolling door prop up take up space on the seat board few, easy to install, do not need independently brakes, the transmission efficiency height, the reverse damping torque is little, automatically close highly sensitively, safe and reliable, on the normally closed multidisc clutch shift fork is housed, stirring the normally closed clutch separation of shift fork with hand can make worm type of reduction gearing separate with the twin-stage gear reduction unit, the reverse auto-lock function forfeiture of worm and gear, rolling door can be closed automatically by deadweight, thereby saves electric power, can drive transmission of torque that Bowden cable produces manpower by the switching machine with manpower during outside the power failure and finish the unlatching of door to the spool of rolling door or close, and easy and simple to handle.

Accompanying drawing 1 is one of the utility model most preferred embodiment assembling back bulk shape structure complete section schematic diagram

Accompanying drawing 2 B-B profile for having amplified a little among Fig. 1;

Accompanying drawing 3 is an A-A profile among Fig. 1.

Further describe architectural feature of the present utility model as follows with most preferred embodiment in conjunction with the accompanying drawings: single-phase series excitation commutator machine 1 is connected with single gear reducer 2, this reducer 2 connects the input of worm type of reduction gearing 3,4 of the output shafts of reducer 3 are connected with normally closed multidisc clutch 5, the interior sheet of this clutch 5 is placed on side's cover 6 of the input gear shaft 7 that is sleeved on twin-stage gear reduction unit 10, and the gear 8 that is meshed with the speed limiting gear wheel shaft 9 of centrifugal governor 21 is housed on the gear shaft 7; The output gear wheel 11 of above-mentioned twin-stage gear reduction unit 10 is placed on the rolling door spool 12, the upper box 13 of reducer 10 is loaded on the location bearing 14 of spool 12 and complete machine is fixed in rolling door and props up on the seat board 15, another input of above-mentioned worm type of reduction gearing 3 connects one and often drives jaw clutch 16, one end of this clutch 16 is connected with Bowden cable 17 again, clutch 16 closes, manpower drives Bowden cable 17 its torques and passes to worm type of reduction gearing 3 by clutch 16, by normally closed multidisc clutch 5, the power shaft 7 of twin-stage gear reduction unit 10 and reducer output gear wheel 11 passes to torque on the spool 12, finishes the unlatching of door or closes.Clutch shifter 18 1 ends are fixed on the box cover 19 of reducer 10, the other end is hooked in the outer plate cavity of normally closed multidisc clutch 5, stir the pulling force that this shift fork 18 overcomes the holddown spring 20 on the clutch 5, make clutch 5 separately, driving reducer 10 separates with reducer 3, reducer 3 reverse auto-lock function forfeitures, the door body drops to door by deadweight and closes.Output gear wheel 11 and the internal gear by reducer 10 of the downslide torque that door body deadweight produces by spool 12 successor's reducers 10 is delivered to gear 8 and drives centrifugal governors 21 rotations by the speed limiting gear wheel shaft 9 that is meshed with this gear 8 again, produces damping torque to limit the decrease speed of door body.

Change as present embodiment:

1, when being used for the common rolling door of non-fire prevention and not needing to close automatically, can remove normally closed multidisc clutch 5, side's cover 6, output shaft 4 and shift fork 18, and the input gear shaft 7 of twin-stage gear reduction unit 10 directly is connected with the worm gear of worm type of reduction gearing 3;

2, normally closed multidisc clutch 5 can be replaced with normally closed cone-disk clutch or normally closed jaw clutch;

3, often driving jaw clutch 16 can replace with cone-disk clutch or rotating key clutch or electromagnetic clutch;

4, worm type of reduction gearing can be replaced with helical gear reducer or conic reducer;

5, can remove worm type of reduction gearing, replace with tapering motor or common electric machine and directly be connected with normally closed clutch 5.

Claims (2)

1, a kind of directly connected-type electric rolling door opens and closes machine, constitute by motor [1] and reducer [10], it is characterized in that its above-mentioned motor [1] of this machine is single-phase series excitation commutator machine, above-mentioned reducer [10] is the twin-stage gear reduction unit, this machine also is equipped with in addition: the end single gear reducer [2] that the output shaft [4] of the other end by worm type of reduction gearing [3] is connected with normally closed clutch [5] that is connected with above-mentioned motor [1], the one end normally disengaged clutch [16] that the other end is connected with Bowden cable [17] that is connected with another input of above-mentioned worm type of reduction gearing [3], one end is fixed on the box cover [19] of above-mentioned reducer [10] and goes up the interior clutch shifter [18] of outer plate cavity that the other end is hooked on above-mentioned clutch [5], with and speed limiting gear wheel shaft [9] be meshed with gear [8] on the input gear shaft [7] that is contained in above-mentioned reducer [10] in order to limit the limiter of speed [21] of door body decrease speed, the output gear wheel [11] of above-mentioned reducer [10] is sleeved on the spool [12] of rolling door, its upper box [13] then is placed on the location bearing [14] that is contained in this spool [12], and complete machine is fixed on rolling door and props up on the seat board [15].

2, directly connected-type electric rolling door according to claim 1 opens and closes machine, it is characterized in that the input gear shaft [7] of above-mentioned twin-stage gear reduction unit [10] can be directly be connected with the worm gear of above-mentioned worm type of reduction gearing.

Images