阅读说明：本技术 一种大幕机电动、手动自动切换机构及其传动方法 (Electric and manual automatic switching mechanism of curtain machine and transmission method thereof ) 是由 陈礼帆 陈昆贤 于 2019-09-24 设计创作，主要内容包括：本发明涉及舞台设备技术领域,具体来说是一种大幕机电动、手动自动切换机构及其传动方法,包括电机输出轴、电动轮轴和手动轮轴,其特征在于：电机输出轴上设有第三螺旋伞齿轮,电动轮轴上设有第一螺旋伞齿轮,手动轮轴上设有第二螺旋伞齿轮,第三螺旋伞齿轮同时啮合第一螺旋伞齿轮和第二螺旋伞齿轮,手动轮轴上设有失电离合器,失电离合器与手动绳轮连接,还包括电磁铁,电磁铁与手动绳轮上的吸铁圈配合,所述电磁铁、电机和失电离合器同步通电工作或断电,可以实现电动控制盒手动控制两种方式。(The invention relates to the technical field of stage equipment, in particular to an electric and manual automatic switching mechanism of a curtain machine and a transmission method thereof, wherein the electric and manual automatic switching mechanism comprises a motor output shaft, an electric wheel shaft and a manual wheel shaft, and is characterized in that: the electric control box is characterized in that a third spiral bevel gear is arranged on an output shaft of the motor, a first spiral bevel gear is arranged on an electric wheel shaft, a second spiral bevel gear is arranged on a manual wheel shaft, the third spiral bevel gear is meshed with the first spiral bevel gear and the second spiral bevel gear simultaneously, a non-electric clutch is arranged on the manual wheel shaft and connected with the manual wheel rope, the electric control box further comprises an electromagnet, the electromagnet is matched with an iron absorbing ring on the manual wheel rope, and the electromagnet, the motor and the non-electric clutch are synchronously electrified to work or powered off, so that two modes of manual control of the electric control box can be.)

1. The utility model provides an electronic, manual automatic switching mechanism of curtain machine, includes motor output shaft, electronic shaft (19) and manual shaft (23), its characterized in that:

a third spiral bevel gear is arranged on an output shaft of the motor, a first spiral bevel gear (21) is arranged on an electric wheel shaft (19), a second spiral bevel gear (22) is arranged on a manual wheel shaft (23), the third spiral bevel gear is meshed with the first spiral bevel gear (21) and the second spiral bevel gear (22) at the same time,

the manual wheel shaft (23) is provided with an electric loss clutch (24), the electric loss clutch (24) is connected with the manual rope wheel (8),

also comprises an electromagnet (2), the electromagnet (2) is matched with an iron absorbing ring (20) on the manual rope pulley (8),

and the electromagnet, the motor and the electric loss clutch are electrified and operated synchronously or are powered off synchronously.

2. The electric, manual and automatic switching mechanism of the curtain machine as claimed in claim 1, wherein: the first spiral bevel gear (21) and the second spiral bevel gear (22) are arranged perpendicular to each other.

3. The electric, manual and automatic switching mechanism of the curtain machine as claimed in claim 1, wherein: the automatic flag rope pulling device is characterized in that a second spiral bevel gear (22), a de-ionization clutch (24) and a manual rope wheel (8) are arranged on the manual wheel shaft (23), a manual wheel shaft bearing and a spacer bush (17) are arranged between the manual wheel shaft (23) and the manual rope wheel (6), a shaft end cover (18) is arranged at the end part of one side, close to the manual rope wheel (8), of the manual wheel shaft (23), and grooves are formed in the peripheral side of the manual rope wheel (8) and used for placing flag ropes (16).

4. The electric, manual and automatic switching mechanism of the curtain machine as claimed in claim 1, wherein: the first spiral bevel gear (21), the second spiral bevel gear (22) and the third spiral bevel gear are arranged in the steering gear box (10), the motor output shaft is transverse, the motor output shaft is connected with the third spiral bevel gear, the manual wheel shaft (23) is longitudinal, the manual wheel shaft (23) is connected with the second spiral bevel gear (22), the electric wheel shaft (19) is vertical, the electric wheel shaft (19) is connected with the first spiral bevel gear (21), the third spiral bevel gear is meshed with the first spiral bevel gear and the second spiral bevel gear, and the motor rotates to drive the manual wheel shaft and the electric wheel shaft to rotate simultaneously.

5. The electric, manual and automatic switching mechanism of the curtain machine as claimed in claim 1, wherein: the electric wheel shaft (19) is provided with a first spiral bevel gear (21) and a driving steel wire wheel (6), and a guide steel wire wheel (5) is arranged outside the driving steel wire wheel (6).

6. The transmission method of the large curtain machine electric, manual and automatic switching mechanism as claimed in claim 1 is characterized in that:

A. under the power-on state, the motor rotates to drive the third spiral bevel gear to rotate, the third spiral bevel gear drives the first spiral bevel gear and the second spiral bevel gear to rotate, the first spiral bevel gear and the second spiral bevel gear drive the electric wheel shaft and the manual wheel shaft to rotate, the electricity loss clutch is opened, the manual wheel shaft idles, the electromagnet is closed, an iron absorbing ring on the manual wheel shaft is absorbed, and the manual wheel shaft is not moved;

B. in a power-off state, the electric clutch is turned off, the electromagnet is disconnected with the iron absorbing ring on the manual rope pulley, the manual rope pulley is manually rotated, the manual rope pulley drives the manual wheel shaft to rotate, the manual wheel shaft drives the second spiral bevel gear to rotate, the second spiral bevel gear drives the third spiral bevel gear to rotate, and the third spiral bevel gear drives the first spiral bevel gear to rotate so as to drive the electric wheel shaft to rotate.

Technical Field

The invention relates to the technical field of stage equipment, in particular to an electric and manual automatic switching mechanism of a curtain machine and a transmission method thereof.

Background

The large screen is a very important element in the stage, the closing of the switch of the large screen is also a part of the performance effect, and the large screen machine is a device for driving the large screen to open and close. The electric large curtain machine is the most frequently used equipment on the stage, is a door of the stage, and the closing of the large curtain plays a role in dividing the audience hall and the stage. The curtain can be divided into a split electric curtain machine, a lifting electric curtain machine, a tandem electric curtain machine, a single-side opening and closing electric curtain machine, a diagonal electric curtain machine and the like according to the opening and closing form of the curtain.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, a curtain machine can only be electrically operated and cannot be manually operated, so that the curtain machine cannot be used under the condition of power failure, and the curtain can only be opened and closed at a constant speed, and provides an electric and manual automatic switching mechanism of the curtain machine and a transmission method thereof.

In order to realize above-mentioned purpose, design an electronic, manual automatic switching mechanism of big curtain machine, including motor output shaft, electronic shaft and manual shaft, its characterized in that: the electric rope wheel comprises a manual rope wheel, a motor, a third spiral bevel gear, a first spiral bevel gear, a second spiral bevel gear, an electromagnet and a power-off clutch, wherein the third spiral bevel gear is arranged on an output shaft of the motor, the first spiral bevel gear is arranged on an electric wheel shaft, the second spiral bevel gear is arranged on the manual wheel shaft, the third spiral bevel gear is meshed with the first spiral bevel gear and the second spiral bevel gear simultaneously, the power-off clutch is arranged on the manual wheel shaft and is connected with the manual rope wheel, the electromagnet is matched with an iron-absorbing ring on the manual rope wheel.

The first spiral bevel gear and the second spiral bevel gear are arranged perpendicularly to each other.

The manual wheel shaft is provided with a second spiral bevel gear, a de-ionization clutch and a manual rope wheel, a manual wheel shaft bearing and a spacer sleeve are arranged between the manual wheel shaft and the manual rope wheel, a shaft end cover is arranged at one end part, close to the manual rope wheel, of the manual wheel shaft, and grooves are formed in the periphery of the manual rope wheel and used for placing flag ropes. The manual wheel shaft is provided with a second spiral bevel gear, a de-ionization clutch and a manual rope wheel, a manual wheel shaft bearing and a spacer sleeve are arranged between the manual wheel shaft and the manual rope wheel, a shaft end cover is arranged at one end part, close to the manual rope wheel, of the manual wheel shaft, and grooves are formed in the periphery of the manual rope wheel and used for placing flag ropes.

The first spiral bevel gear, the second spiral bevel gear and the third spiral bevel gear are arranged in the steering gear box, the motor output shaft is in a transverse direction and is connected with the third spiral bevel gear, the manual wheel shaft is in a longitudinal direction and is connected with the second spiral bevel gear, the electric wheel shaft is in a vertical direction and is connected with the first spiral bevel gear, the third spiral bevel gear is meshed with the first spiral bevel gear and the second spiral bevel gear, and the motor rotates to drive the manual wheel shaft and the electric wheel shaft to rotate simultaneously.

The electric wheel shaft is provided with a first spiral bevel gear and a driving steel wire wheel, and a guide steel wire wheel is arranged outside the driving steel wire wheel.

A transmission method of an electric, manual and automatic switching mechanism of a curtain machine is characterized in that:

A. under the power-on state, the motor rotates to drive the third spiral bevel gear to rotate, the third spiral bevel gear drives the first spiral bevel gear and the second spiral bevel gear to rotate, the first spiral bevel gear and the second spiral bevel gear drive the electric wheel shaft and the manual wheel shaft to rotate, the electricity loss clutch is opened, the manual wheel shaft idles, the electromagnet is closed, an iron absorbing ring on the manual wheel shaft is absorbed, and the manual wheel shaft is not moved;

B. in a power-off state, the electric clutch is turned off, the electromagnet is disconnected with the iron absorbing ring on the manual rope pulley, the manual rope pulley is manually rotated, the manual rope pulley drives the manual wheel shaft to rotate, the manual wheel shaft drives the second spiral bevel gear to rotate, the second spiral bevel gear drives the third spiral bevel gear to rotate, and the third spiral bevel gear drives the first spiral bevel gear to rotate so as to drive the electric wheel shaft to rotate.

Compared with the prior art, the invention has the advantages that:

1. the electric control box can realize two modes of manual control, under the condition of electric control, the third spiral bevel gear is directly driven by the motor, the first spiral bevel gear is driven by the third spiral bevel gear to rotate, and then the electric wheel shaft is controlled to rotate, so that the electric control is realized; under the condition of manual control, the manual rope wheel is manually rotated, the second spiral bevel gear is driven by the manual wheel shaft to rotate, the second spiral bevel gear drives the third spiral bevel gear to further transmit to the electric wheel shaft, and manual control is achieved.

2. Be provided with on manual rope sheave and inhale the iron ring, inhale iron ring and cooperate with the electro-magnet for under the electrified circumstances, manual wheel shaft bearing can not lead to manual rope sheave to rotate.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side sectional view of the present invention;

FIG. 3 is a schematic diagram of the present invention;

in the figure: 1. the variable-speed motor 2, the electromagnet 3, the kidney-shaped bearing 4, the mounting seat 5, the guide wire wheel 6, the driving wire wheel 7, the pressing wheel 8, the manual rope wheel 9, the gear box end cover 10, the steering gear box 11, the rope wheel housing 12, the motor end cover plate 13, the limiting opening mounting opening 14, the bearing 15, the pressing wheel support 16, the flag rope 17, the spacer 18, the shaft end cover 19, the electric wheel shaft 20, the iron absorbing ring 21, the first spiral bevel gear 22, the second spiral bevel gear 23, the manual wheel shaft 24, the electric loss clutch 25 and the mounting seat.

Detailed Description

The construction and principles of such a device will be apparent to those skilled in the art from the following further description of the invention taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2: the concrete structure is as follows:

the motor output shaft is transversely arranged and connected with a third spiral bevel gear, the third spiral bevel gear is meshed with a first spiral bevel gear 21 and a second spiral bevel gear 22, the three spiral bevel gears are vertically arranged two by two, the first spiral bevel gear 21 is connected with a vertical electric wheel shaft 19, the second spiral bevel gear 22 is connected with a longitudinal manual wheel shaft 23, the motor output shaft, the manual wheel shaft 23 and the electric wheel shaft 19 penetrate through an opening in the steering gear box 10, the three spiral bevel gears are arranged in the steering gear box 10, the motor rotates to drive the third spiral bevel gear to rotate, the third spiral bevel gear drives the first spiral bevel gear and the second spiral bevel gear to rotate, and further drives the electric wheel shaft 19 and the manual wheel shaft 23 to rotate together.

The first spiral bevel gear 21 and the driving steel wire wheel 6 are sequentially arranged on the shaft section of the electric wheel shaft 19, the guide steel wire wheel 5 is arranged on the outer side of the driving steel wire wheel 6, and the driving steel wire wheel 6 rotates under the condition that the electric wheel shaft 19 rotates.

The second spiral bevel gear 22, the electric-losing clutch 24 and the manual rope wheel 9 are sequentially arranged on the shaft section of the manual wheel shaft 23, the electric-losing clutch 24 is opened in the power-on state, the manual wheel shaft 8 idles, the manual rope wheel 8 cannot rotate along with the manual wheel shaft 23, the electric-losing clutch 24 is closed in the power-off state, and the manual wheel shaft 23 is driven to rotate by the rotation of the manual rope wheel 8.

Referring to fig. 1-3: the transmission mechanism has the following principle:

in the electric driving mode, the motor drives the third spiral bevel gear to further drive the first spiral bevel gear 21 and the second spiral bevel gear 22 to transmit simultaneously, and the electric wheel shaft 19 and the manual wheel shaft 23 rotate simultaneously; the working principle of the electric loss clutch 24 is that the electric loss clutch 24 is opened and closed along with the driving of the motor, when the electric loss clutch is electrified, the electric loss clutch 24 is opened, the manual wheel shaft 23 idles, the manual wheel shaft bearing generates friction during idling, and the manual wheel shaft 8 is driven to rotate by small force, so that an electromagnet 2 is arranged, the electromagnet ring 20 on the wheel shaft is attracted, damping is generated, the wheel shaft cannot move, and the electromagnet, the motor and the electric loss clutch synchronously work.

Under the condition of no power supply, the motor, the electric loss clutch and the electromagnet are powered off at the same time, the electric loss clutch 24 is in a closed state, the electromagnet 2 is in an open state, a hand-pull driving mode can be adopted, the electric loss clutch is in seamless connection with the manual wheel shaft and the manual rope wheel through a mechanical principle for transmission, control through other links is not needed, the electromagnet can automatically separate from the rope wheel through a spring device for resetting, the manual rope wheel is pulled, the electric loss clutch is used for transmitting to the hand-pull wheel shaft through the electric loss clutch, the second spiral bevel gear drives the third spiral bevel gear to transmit to the first spiral bevel gear, and the electric wheel shaft is driven, so that the hand-pull transmission process is realized.