CN2283706Y

CN2283706Y - Transmission of door opener

Info

Publication number: CN2283706Y
Application number: CN97206677U
Authority: CN
Inventors: 高福根; 朱跃明; 萧永明
Original assignee: HANGZHOU SPEED REDUCER PLANT
Current assignee: HANGZHOU SPEED REDUCER PLANT
Priority date: 1997-03-01
Filing date: 1997-03-01
Publication date: 1998-06-10
Anticipated expiration: 2007-03-01

Abstract

The utility model relates to transmission of a movable door, composed of a drive motor, a worm wheel, a worm, an output shaft, an output handle, friction plates, dish springs, gland nuts and a cabinet, wherein, the friction plates, the dish springs and the gland nuts are movably arranged on the output shaft, and the friction plates are pressed on both end surfaces of the secondary worm wheel. The pressing spiral is regulated, the friction connecting tightness of the friction plates and the secondary worm wheel is changed, the output torque is changed, and movable doors of different sizes are transmitted.

Description

The door lifter transmission device

The utility model relates to the device of regulating machine driving moment size, specifically is translation door or revolving door transmission device.

Existing various transmission devices are to regulate machine shaft to change output torque with the tightness that is connected of worm screw in the moving door, have the efficient height, but output torque want big; the scope of regulating is smaller; do not have the function of overload protection, run into fortuitous event, move a sensitive for damages.

The purpose of this utility model provides the transmission device with a kind of moving door of regulating driving torque and overload protection.

Technical pattern scheme of the present utility model is to be made of drive motors, worm screw, worm gear, output shaft, output handle, friction plate, dish spring, clamp nut and casing, its feature is that the first-stage worm gear that is connected on the second-stage worm connects with the worm engaging on the drive motors shaft extension, the activity attaching has friction plate, dish spring, clamp nut on the output shaft, the friction plate roof pressure is in the both ends of the surface of second-stage worm gear, can along with flat key space movingly in move axially a distance, carry out degree of tightness friction with second-stage worm gear and connect.The dish spring is arranged between friction plate and the clamp nut, regulate clamp nut and can change the pressure of dish spring friction plate.

The utlity model has good effect: the friction of friction plate and second-stage worm gear connects, and when door lifter resistance during greater than rotating torque, overload protection is played in friction plate and second-stage worm gear sliding friction, avoids transmission device impaired, the minimizing operational failure.

According to accompanying drawing, implementation content of the present utility model is described now.

Fig. 1 is the utility model topology view.

Fig. 2 is that the B-B of Fig. 1 is to topology view.

Look shown in Fig. 1 and 2, second-stage worm 2 and output shaft 5 activities are assemblied on the casing 7, second-stage worm 2 connects with worm engaging on drive motors 4 shaft extensions, drive second-stage worm 2 and second-stage worm gear 1 rotation, second-stage worm gear 1 activity is assemblied on the output shaft 5, friction plate 8 roof pressures are in the both ends of the surface of second-stage worm gear 1, be installed on the output shaft 5 by the flat key activity, it can be vertically and flat key clearance groove movingly between do moving of certain distance, make dish spring 9 compressing friction plates 8 by adjusting nut 10, change size with second-stage worm gear 1 frictional force, the output torque size of output shaft 5 is changed, drive the translation or the rotation that move door by the output handle 6 of output shaft 5 one ends and move.Door is in service moving, and runs into fortuitous event, and resistance increases, and surpasses original output torque of setting, and friction plate 8 skids with second-stage worm gear 1, and output shaft 5 stops operating, and avoids transmission device to damage.

Claims

1, a kind of door lifter transmission device, this installs by drive motors, worm screw, worm gear, output shaft, axle goes out handle, friction plate, the dish spring, clamp nut and casing constitute, and it is characterized in that the last activity attaching of output shaft (5) has friction plate (8), dish spring (9), clamp nut (10), friction plate (8) are pressed in worm gear (1) both ends of the surface.