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Tubular motor braking device and speed reduction box

A brake device and tubular motor technology, applied in the direction of electromechanical devices, electric components, brake types, etc., can solve the problems of difficult assembly, loss of brake performance, high manufacturing cost of brake mechanisms, etc., to ensure continuous operation and eliminate excessive temperature rise Fast, Simple Effects

Inactive Publication Date: 2018-06-05
宁波市镇海区职业教育中心学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the structure of the tubular motor, the brake mechanism used for the tubular motor in the prior art is stopped by electromagnetic attraction. The brake mechanism has high manufacturing cost, difficult assembly, and high failure rate. High temperature will affect the performance of the internal rubber parts. If the temperature is too high, the rubber friction plate will be softened, resulting in the loss of braking performance, so that the motor cannot work for a long time. Therefore, the motor cannot be used for long-term work such as electric sky curtains. field

Method used

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  • Tubular motor braking device and speed reduction box
  • Tubular motor braking device and speed reduction box
  • Tubular motor braking device and speed reduction box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, a tubular motor brake device includes a drive pin 6 , a drive disc 1 , a stop pin 5 , a follower 2 and a friction ring 4 assembled in the axial direction. The transmission pin 6 is installed on the transmission disc 1 for connecting the reducer of the tubular motor. The transmission pin 6 is inserted into the planetary gear of the tubular motor reducer. When the reducer works, the transmission pin 6 drives the transmission disc 1 to rotate. The driven member 2 is composed of a concentric driven disc 21 and an output shaft 3 , and the side of the main body of the driven disc 21 has lugs 22 extending in the radial direction. The friction ring 4 is sleeved on the outside of the driven disc 21 to form a certain assembly gap with the main body of the driven disc 21 . The bottom surface of the transmission disc 1 has axially extending arc-shaped transmission claws 11 , the number of which is the same as that of the lugs 22 , and the transmission cl...

Embodiment 2

[0046] This embodiment is based on the foregoing embodiments, such as figure 2 and image 3As shown, the transmission disc 1 has three uniformly distributed transmission claws 11 . Both sides of transmission pawl 11 are indented circular arc shape, and its circular arc diameter is identical with the outer diameter of stop pin 5, and can fit the outer wall of stop pin 5 when transmission pawl 11 contacts with stop pin 5. The bottom surface of the transmission disc 1 has an axial connection hole 12 for positioning connection with the driven member 2 . The top surface of the transmission disc 1 is provided with three evenly distributed transmission pin holes 13, and a transmission pin 6 is fixed in each transmission pin hole 13, so that the transmission disc 1 is connected with the reducer.

[0047] Such as Figure 4 and Figure 5 As shown, the driven disc 21 has three lugs 22, and both sides of the lugs 22 have concave stop pin grooves 23, and a stop pin 5 is installed in e...

Embodiment 3

[0049] The difference between this embodiment and the above-mentioned embodiment is that there are 6 evenly distributed transmission claws 11 on the transmission disc 1, and 6 corresponding lugs 22 are also provided on the driven disc 21, and the stop pin 5 has a total of 6 12. The sum of the radians of all the driving claws 11 is 2 / 3π, and the sum of the radians of all the lugs 22 is 1 / 2π. Increasing the number of transmission claws 11 and lugs 22 can make the braking device run more precisely and improve the braking effect.

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Abstract

The invention discloses a tubular motor braking device, which comprises a transmission disc, a driven part and a friction ring. The driven part comprises a driven disc and an output shaft, the lateralside of a driven disc body is provided with lugs extending radially, the friction ring sleeves the driven disc externally, arc transmission claws extending axially are arranged on the bottom face ofthe transmission disc and inserted into gaps between the friction ring and the driven disc body to realize connection of the transmission disc and the driven part, gaps are reserved between the friction ring and the transmission claws and the lugs, movable stop pins are mounted between the transmission claws and the lugs, and extrusion braking of the stop pins and the friction ring is realized through changing of a relative position of the stop pins to the driven disc. The invention further discloses a speed reduction box with the tubular motor braking device. The tubular motor braking deviceand the speed reduction box with the same have advantages that structural simplicity and precision in matching are realized, a whole braking process is free of heat generation due to adoption of mechanical stagger braking, and accordingly long-time operation of the motor can be realized, and continuous operating of the motor is guaranteed.

Description

technical field [0001] The invention relates to the field of motor equipment, in particular to a tubular motor braking device and a reduction box. Background technique [0002] Tubular motor is a kind of automatic rolling equipment. This technology has been used for many years. It has constant characteristics, simple structure, low manufacturing cost and convenient processing. It is currently widely used in rolling doors, windows, shutters and similar equipment. However, limited by the structure of the tubular motor, the brake mechanism used for the tubular motor in the prior art is stopped by electromagnetic attraction. The brake mechanism has high manufacturing cost, difficult assembly, and high failure rate. High temperature will affect the performance of the internal rubber parts. If the temperature is too high, the rubber friction plate will be softened, resulting in the loss of braking performance, so that the motor cannot work for a long time. Therefore, the motor can...

Claims

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Application Information

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IPC IPC(8): F16D63/00H02K7/102
Inventor 童奇波徐雪群张建强罗赶杨凯旋孙杰王建平
Owner 宁波市镇海区职业教育中心学校
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