Motor hand mode clutch drive rotor safety mechanism

Abstract

The clutch transmission rotor safety mechanism for motor manual mode relates to a clutch transmission rotor safety mechanism for motor manual mode. It is mainly designed to solve the problem of the current sudden power-on which causes the coexistence of manual mode and motor drive mode and damages the motor. The clutch bracket sleeve is connected with the clutch rotor fixed seat; the thick tooth disc in the clutch bracket sleeve is installed in the thick tooth disc; the half shaft sleeve has a clutch spring outside; the half shaft in the half shaft sleeve is connected with the chain wheel shaft; the pin passes through the hole of the thick tooth disc and the long hole of the half shaft sleeve and falls between the inclined surfaces of the two feet of the pulling shaft; the upper end of the thin tooth disc has teeth, the motor rotor extends into the clutch rotor fixed seat, and the thin tooth disc is fixed on the motor rotor. The micro switch is installed on the side surface of the annular boss of the clutch sleeve bracket sleeve, and the touch rod of the micro switch passes through the clutch bracket sleeve and contacts the top of the thick tooth disc. The advantage is that it can avoid the damage of the motor caused by the sudden power-on of the motor when the motor main shaft is running in manual mode under power-off condition.

Description

Technical Field

[0001] This utility model relates to the field of motors, specifically to a safety mechanism for a clutch transmission rotor in manual mode of a motor. Background Technology

[0002] Tubular motors used in rolling doors may occasionally experience power outages during operation. Without a manual mode, the rolling door cannot be opened or closed. With a manual mode, there is a concern that a sudden power restoration could cause the manual mode and motor drive mode to coexist, potentially damaging the motor's transmission mechanism, resulting in motor loss, and in severe cases, posing a danger to the operator. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a motor manual mode clutch transmission rotor safety mechanism that can prevent motor damage caused by sudden power-on when the motor spindle is running in manual mode during power failure.

[0004] The purpose of this utility model is achieved as follows:

[0005] It includes a clutch support sleeve, the upper end face of which is provided with an upwardly extending annular boss, and the clutch support sleeve and the clutch rotor fixing seat are connected together.

[0006] The inner cavity of the clutch support sleeve is equipped with an annular thick gear plate. The upper and lower end faces of the thick gear plate are provided with teeth. The top of the inner part of the clutch support sleeve is also provided with teeth. The teeth on the upper end of the thick gear plate mesh with the teeth inside the clutch support sleeve. The thick gear plate and the clutch support sleeve slide in contact. The edge of the thick gear plate facing the clutch support sleeve is provided with an annular limiting platform extending towards the center of the thick gear plate.

[0007] The lower end of the half-shaft sleeve has an outer edge extending outward, and the half-shaft sleeve is installed inside the thick gear plate.

[0008] A clutch spring is fitted around the outside of the half-shaft sleeve. The lower end of the clutch spring rests on the outer edge of the lower end of the half-shaft sleeve, and the upper end of the clutch spring rests on the annular limiting platform of the thick gear plate.

[0009] The half-shaft is installed in the half-shaft sleeve, and the lower end of the sprocket shaft extends into the shaft hole of the half-shaft through the clutch bracket sleeve, the thick gear plate, and the sprocket sleeve to connect with the half-shaft.

[0010] The sprocket driven in manual mode is mounted on the sprocket shaft.

[0011] The axle sleeve has an axially elongated hole;

[0012] The lower end of the half shaft is symmetrically provided with two downward-extending support legs, and each support leg has two sides connected to an inclined surface that gradually slopes from top to bottom towards the lower end of the half shaft.

[0013] There is a hole on the side wall at the upper end of the thick gear plate. The pin passes radially through the hole on the side wall at the upper end of the thick gear plate and the long hole of the half shaft sleeve, and then falls into the gap between the inclined surfaces of the two support feet of the lever shaft.

[0014] It also includes a thin gear disk that corresponds to the thick gear disk. The upper end of the thin gear disk has teeth that match the teeth at the lower end of the thick gear disk. The thin gear disk is set in the clutch rotor mounting base. The motor rotor extends into the clutch rotor mounting base. The thin gear disk is fixed on the motor rotor of the motor assembly.

[0015] Its features are: a micro switch is installed on the clutch bracket sleeve, the micro switch is installed on the side of the annular boss on the upper part of the clutch bracket sleeve, and the lower contact rod of the micro switch passes through the side wall of the clutch bracket sleeve and contacts the top of the thick gear plate.

[0016] The advantages of this invention are: because a micro switch is provided, the power supply is connected to the motor through the micro switch, and the thick toothed disc can be separated from the contact rod of the micro switch by pulling the chain. This can avoid the motor being damaged by sudden power-on when the motor spindle is driven in manual mode in the event of a power outage, thus improving safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0019] Figure 3 This is an exploded view of this utility model;

[0020] Figure 4 This is a schematic diagram of the installation position of the micro switch in this utility model;

[0021] Figure 5 This is a schematic diagram of the separation state of the medium-thick toothed disc and the contact rod of the micro switch in this utility model;

[0022] Figure 6 This is a schematic diagram showing the contact state between the medium-thick toothed disc and the contact rod of the micro switch in this utility model. Detailed Implementation

[0023] The following is combined Figure 1-6 The present invention will be further described below;

[0024] It includes a clutch bracket sleeve 2, the upper end face of which is provided with an upwardly extending annular boss, and the clutch bracket sleeve and the clutch rotor fixing seat 9 are connected together.

[0025] The inner cavity of the clutch support sleeve 2 is equipped with an annular thick toothed disc 7. The upper and lower end faces of the thick toothed disc are provided with teeth. The top of the inner part of the clutch support sleeve is provided with teeth. The teeth at the upper end of the thick toothed disc mesh with the teeth inside the clutch support sleeve. The thick toothed disc and the clutch support sleeve slide in contact. The edge of the thick toothed disc facing the clutch support sleeve is provided with an annular limiting platform extending towards the center of the thick toothed disc.

[0026] The lower end of the half-shaft sleeve 4 has an outer edge extending outward, and the half-shaft sleeve is installed inside the thick gear plate.

[0027] A clutch spring 3 is fitted on the outside of the half-shaft sleeve. The lower end of the clutch spring rests on the outer edge of the lower end of the half-shaft sleeve, and the upper end of the clutch spring rests on the annular limiting platform of the thick gear plate.

[0028] The half-shaft 6 is installed in the half-shaft sleeve. The lower end of the sprocket shaft extends into the shaft hole of the half-shaft through the clutch bracket sleeve, the thick gear plate, and the sprocket sleeve to connect with the half-shaft.

[0029] The sprocket driven in manual mode is mounted on the sprocket shaft.

[0030] The axle sleeve has an axially elongated hole;

[0031] The lower end of the half shaft is symmetrically provided with two downward-extending support legs, and each support leg has two sides connected to an inclined surface that gradually slopes from top to bottom towards the lower end of the half shaft.

[0032] There is a hole on the side wall at the upper end of the thick gear plate. The pin 5 passes radially through the hole on the side wall at the upper end of the thick gear plate and the long hole of the half shaft sleeve, and then falls into the gap between the inclined surfaces of the two support feet of the lever shaft.

[0033] It also includes a thin toothed disk 8 that is provided in relation to the thick toothed disk. The upper end of the thin toothed disk has teeth that match the teeth at the lower end of the thick toothed disk. The thin toothed disk is set in the clutch rotor fixing seat 9. The motor rotor 10 extends into the clutch rotor fixing seat and the thin toothed disk is fixed on the motor rotor 10 of the motor assembly.

[0034] Its features are: a micro switch 1 is installed on the clutch bracket sleeve, the micro switch is installed on the side of the annular boss on the upper part of the clutch bracket sleeve, and the lower contact rod of the micro switch passes through the side wall of the clutch bracket sleeve and contacts the top of the thick gear plate.

[0035] Clutch working principle: Under normal power-on working conditions, the clutch spring force retracts the thick gear plate into the clutch bracket sleeve (the teeth on the upper end of the thick gear plate and the teeth inside the clutch bracket sleeve self-lock, so that the vibration when the motor rotates will not cause the thick gear plate to rotate), thus separating the thick gear plate and the thin gear plate. The motor independently drives the reduction mechanism to run, and the reduction mechanism drives the roller door shaft to open and close the roller door.

[0036] In case of power outage or emergency, the sprocket chain needs to be manually pulled to open and close the roller door. The rotation of the sprocket drives the half shaft to rotate through the sprocket shaft. The half shaft, blocked by the pin, causes the half shaft sleeve and the thick toothed disc to move together and compress the clutch spring. At this time, the thick toothed disc separates from the micro switch contact rod and the power is cut off. At the same time, the thick toothed disc and the thin toothed disc engage, and the sprocket will drive the motor shaft to run synchronously, realizing the opening and closing of the roller door in manual mode. Conversely, when released, the thick toothed disc separates from the thin toothed disc under the action of the clutch spring and abuts against the contact rod of the micro switch, entering the power-on mode.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clutch transmission rotor safety mechanism for manual mode of motor, including a clutch bracket sleeve (2), the upper end face of the clutch bracket sleeve is provided with an upwardly extending annular boss, and the clutch bracket sleeve and the clutch rotor fixing seat (9) are connected together. The inner cavity of the clutch support sleeve (2) is equipped with an annular thick toothed disc (7). The upper and lower end faces of the thick toothed disc are provided with teeth. The top of the inner part of the clutch support sleeve is provided with teeth. The teeth at the upper end of the thick toothed disc mesh with the teeth inside the clutch support sleeve. The thick toothed disc and the clutch support sleeve slide in contact. The edge of the thick toothed disc facing the clutch support sleeve is provided with an annular limiting platform extending towards the center of the thick toothed disc. The lower end of the half-shaft sleeve (4) is provided with an outer edge extending outward, and the half-shaft sleeve is installed in the thick gear plate; The outer side of the half-shaft sleeve is fitted with a clutch spring (3). The lower end of the clutch spring rests on the outer edge of the lower end of the half-shaft sleeve, and the upper end of the clutch spring rests on the annular limiting platform of the thick gear plate. The half shaft (6) is installed in the half shaft sleeve. The lower end of the sprocket shaft extends into the shaft hole of the half shaft through the clutch bracket sleeve, the thick gear plate, and the sprocket sleeve to connect with the half shaft. The axle sleeve has an axially elongated hole; The lower end of the half shaft is symmetrically provided with two downward-extending support legs, and each support leg has two sides connected to an inclined surface that gradually slopes from top to bottom towards the lower end of the half shaft. There is a hole on the side wall at the upper end of the thick gear plate. The pin (5) passes radially through the hole on the side wall at the upper end of the thick gear plate and the long hole of the half shaft sleeve and falls into the gap between the inclined surfaces of the two support feet of the lever shaft. It also includes a thin toothed disk (8) corresponding to the thick toothed disk. The upper end of the thin toothed disk has teeth that match the teeth at the lower end of the thick toothed disk. The thin toothed disk is set in the clutch rotor fixing seat (9). The motor rotor (10) extends into the clutch rotor fixing seat. The thin toothed disk is fixed on the motor rotor (10) of the motor assembly. Its characteristics are: A micro switch (1) is installed on the clutch bracket sleeve. The micro switch is installed on the side of the annular boss on the upper part of the clutch bracket sleeve. The lower contact rod of the micro switch passes through the side wall of the clutch bracket sleeve and contacts the top of the thick gear plate.

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