CN201186166Y - Stage large curtain towing mechanism - Google Patents
Stage large curtain towing mechanism Download PDFInfo
- Publication number
- CN201186166Y CN201186166Y CNU2008200745527U CN200820074552U CN201186166Y CN 201186166 Y CN201186166 Y CN 201186166Y CN U2008200745527 U CNU2008200745527 U CN U2008200745527U CN 200820074552 U CN200820074552 U CN 200820074552U CN 201186166 Y CN201186166 Y CN 201186166Y
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- gear
- wheel
- mount pad
- decimal system
- motor
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Abstract
The utility model relates to a traction device of a grand curtain, which comprises a frame body, a motor, a speed reducer and a traction wheel, wherein the motor and the speed reducer are fixedly mounted on the frame body, the traction wheel is driven to rotate by the motor through the speed reducer, the output shaft of the speed reducer is horizontally arranged, a longitudinal traction wheel is rotatably mounted on the output shaft, both sides of the traction wheel are respectively, coaxially and fixedly provided with an electrical de-construction and re-combination and a betatopic de-construction and re-combination follow-up fluted discs, and meanwhile, a driving fluted disc of the electrical de-construction and re-combination is fixedly mounted with the output shaft of the speed reducer, the driving fluted disc of the betatopic de-construction and re-combination is fixedly mounted with a chain wheel which is rotatably mounted on the output shaft end. The utility model has the advantages of compact structure and smart design, which can be mounted on one end of a curtain rail bracket, not only saves the ground space of a stage, but also can woke with a hoisting mechanism to achieve the heterogeneity of the traction device, and can simultaneously achieve the function of automatic and hand-operated control, the automatic tightening function of a cable wire and a high-precision position signal collecting and controlling function, and is a traction device of a grand curtain with higher innovation.
Description
Technical field
The utility model belongs to the stage machinery field, particularly a kind of stage curtain draw-gear.
Background technology
The curtain draw-gear is one of equipment the most used on the stage, and curtain curtain body is driven by draw-gear and splits around or oscilaltion from the stage mediad, is used for the stage set conversion, and is elegant in appearance, plays the effect that sets off the theatrical art atmosphere by contrast.The most employing of existing curtain horizontally tracting device is arranged at the ground drive unit driving of stage drum mechanism built Wound steel rope and back and forth moves, realize that an act body is split and closure, it not only takies the stage ground space, cause staff's inconvenient activity, and can not use simultaneously with curtain body lifting device, can't realize that act body promotes.The existing at present draw-gear that can be installed on the curtain horizontal guide rail, referring to Chinese invention patent CN1327923C, it is by being installed on the reel of reducing motor and driving thereof jointly the medium position of horizontal guide rail, drive the curtain telescoping mechanism by the closed loop steel wire rope that twines on the reel and realize the reliable folding of curtain body, can be used with lifting device and realize splitting or promoting of curtain body.But also there is certain drawback in this kind draw-gear: at first, draw-gear adopts reducing motor to drive reel, when motor device goes wrong and can't realize the folding of hand traction curtain can't normally use the time, uses very flexible; In addition, steel wire rope in use is easy to generate relaxation, causes act running body unreliable, though adopt the support roller anti-loose structure, it can't be reconciled in real time to the tensioner degree of steel wire rope; Secondly, positioner in the above-mentioned draw-gear adopts the nut conductor rope frame with the reel engagement, rely on the left and right displacement of conductor rope frame to cooperate the control that stops that realizing reducing motor with travel switch, relatively poor control accuracy and the reliability of causing of its displacement accuracy all can not satisfy high-level user demand.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of have manual, automatic mode of traction, stage curtain draw-gear easy to use, safe and reliable are provided.
The utility model solves its technical problem and takes following technical scheme to realize:
This stage curtain draw-gear, constitute by support body, motor, decelerator, traction sheave, motor and decelerator are installed on the support body, motor drives traction sheave by decelerator and rotates, it is characterized in that: described reducer output shaft is for being horizontally disposed with, on this output shaft, rotate vertical traction sheave is installed, in the both sides of this traction sheave coaxial respectively install ionization close and the dead electricity clutch with active toothed disk, simultaneously ionization the active fluted disc and the reducer output shaft that close install, the active fluted disc of dead electricity clutch is installed on the sprocket wheel of exporting axle head and installs with rotating.
And, in a side of support body guiding one group of vertical slide bar being installed, the upper end of this slide bar is installed in an installing plate bottom surface, all is set with thrust spring on the slide bar between support body and the installing plate.
And described traction sheave is a double grooved pulley.
And, also being provided with a directive wheel that is positioned at above the traction sheave on the support body, this directive wheel is installed on the support body in the adjustable mode of deflection by a support.
And the end of the central shaft of described directive wheel is provided with counter stroke switch or rotary encoder, outputs control signals to motor by this counter stroke switch or rotary encoder.
And, described counter stroke switch is by base, mount pad, microswitch, decimal system counting gear group, the centre-driven gear constitutes, the centre-driven gear vertically is installed on the center of mount pad below by its central shaft, between the mount pad of centre-driven gear periphery and base, be provided with at least two group decimal system counting gear groups, the input character wheel of each decimal system counting gear group meshes the centre-driven gear jointly, the output position wheel of each decimal system counting gear group installs with its central shaft, this output position wheel central shaft is threaded onto on the mount pad plane and all is fixed with presser feet in its end, at the mount pad upper surface at least two microswitches are installed, presser feet contacts corresponding microswitch contact in rotary course.
And, the periphery of centre-driven gear is provided with four groups of decimal system counting gear groups between mount pad and base, the input character wheel of each decimal system counting gear group meshes the centre-driven gear jointly, in the corresponding distribution of mount pad upper surface four microswitches are installed, the presser feet that the central shaft end of the output position wheel of each decimal system counting gear group is installed contacts corresponding microswitch contact respectively in rotary course.
And the input character wheel of described decimal system counting gear group installs mutually with its central shaft, and input character wheel central shaft end stretches out in the mount pad upper surface, and is shaped on the flat recess that is used to adjust at its end face.
And, in the outer enclosure of pedestal and mount pad one sealing box body is arranged.
Advantage of the present utility model and good effect are:
1. the traction sheave of this curtain draw-gear can optionally link with reducer output shaft or sprocket wheel, dead electricity clutch generally is in engagement, can manually control the action of haulage gear this moment by being around in circulation link chain on the sprocket wheel, when motor is in energising, ionization is closed and is in engagement, traction sheave drives rotation by decelerator, can realize manually reaching the selection of control automatically thus easily, even when motor breaks down, still can control the work of haulage gear freely, guarantee the safety in utilization and the stability of curtain draw-gear.
2. the support body of this curtain draw-gear is provided with one group of slide bar, the slide bar end installs installing plate, can be when adopting this kind structure by installing plate with the end of this device integral installation in the curtain guide rail bracket, when initial the installation, support body upwards can be slided to the top of slide bar, support body integral body is in suspension status all the time under the pull of steel wire that detours on the one side traction sheave thus, it can play the tension effect to steel wire rope automatically under the gravity effect, reach the purpose that keeps the steel wire rope tensioner for a long time, effectively guarantee the long-term normal operation of haulage gear, also thrust spring can be set simultaneously, strengthen the tensioner dynamics.
3. the traction sheave of this curtain draw-gear adopts the form of double grooved pulley, can further strengthen the bearing capacity of traction sheave, prevents slipping.
This curtain draw-gear above traction sheave, be provided with one with the directive wheel of traction sheave servo-actuated, steel wire rope in the circle back of detouring on the traction sheave around to directive wheel and then around to another race of traction sheave, because directive wheel is installed on the support body in the adjustable mode of deflection, so directive wheel has the effect that certain amount of deflection plays spirally-guided.
5. this curtain draw-gear is provided with counter stroke switch or rotary encoder at the center of directive wheel axle head, be converted to act collection of body horizontal displacement signal by collection to the directive wheel rotating signal, realize the effect of Stroke Control, have the advantage of precision height, good reliability; And, the output shaft idle running that is taken place when counter stroke switch or rotary encoder also can be avoided it being installed on the reducer output shaft end with the mode that directive wheel is installed mutually in the past and error signal that steel wire rope moves is gathered phenomenon further improves the running precision of draw-gear.
6. the utility model compact conformation, design ingenious, it can be installed on curtain guide rail bracket one end, not only save the stage ground space, and can act on simultaneously, realize the diversity of draw-gear with lifting mechanism, simultaneously can realize automatically, manually control function, steel wire rope automatic tension function, and high precision position signals collecting and control function are a kind of stage curtain draw-gears that has than high innovation character.
Description of drawings
Fig. 1 is a mounting structure schematic diagram of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of the utility model counter stroke switch;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is equipped with the schematic diagram of seal casinghousing for counter stroke switch.
The specific embodiment
Below in conjunction with embodiment the utility model is further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of stage curtain draw-gear, constitute by support body 4, motor 14, decelerator 15, traction sheave 8, motor and decelerator are installed in the support body lower end, reducer output shaft 11 is a horizontal output shaft, on this output shaft, rotate the vertical traction sheave of installation by bearing, for guaranteeing bearing capacity, traction sheave adopts the double grooved pulley form.In the left and right sides of this traction sheave coaxial respectively install ionization close 13 and dead electricity clutch 9 with active toothed disk.Simultaneously the active fluted disc that closes of ionization installs mutually with reducer output shaft, the active fluted disc of dead electricity clutch is installed on the sprocket wheel 10 of exporting axle head with rotation and installs mutually.Traction sheave can optionally link with reducer output shaft or sprocket wheel thus.Dead electricity clutch generally is in engagement, and this moment can be by detour manually actions of control haulage gears of circulation link chain 12 on sprocket wheel of pulling; When motor is in when energising, ionization is closed and is in engagement, traction sheave is rotated by motor-driven.Can realize easily thus manually reaching the selection of control automatically,, guarantee the safety in utilization and the stability of curtain draw-gear even when motor breaks down, still can control the work of haulage gear freely.
Side guiding at support body is equipped with one group of vertical slide bar 16, is symmetrically arranged two slide bars in the present embodiment.The upper end of slide bar is installed in an installing plate 3 bottom surfaces, by installing plate with the end of this device integral installation in curtain guide rail bracket 1.When initial the installation, support body is upwards slided to the top of slide bar, support body integral body is in suspension status all the time under the pull of steel wire that detours on the one side traction sheave thus, it can play the tension effect to steel wire rope automatically under the gravity effect, reach the purpose that keeps the steel wire rope tensioner for a long time, effectively guarantee the long-term normal operation of haulage gear, on the slide bar between support body and the installing plate, all be set with thrust spring 17 simultaneously, strengthen the tensioner dynamics.
Also be provided with a directive wheel 7 that is positioned at above the traction sheave on the support body, this directive wheel is installed on the support body in the adjustable mode of deflection by a support 18, and cantilever tip adopts bolt 5 to be installed on the support body top.During initial the installation steel wire rope in the circle back of detouring on the traction sheave around to directive wheel and then around to another race of traction sheave, and then around to curtain guide rail bracket one end guide wheel 2.Because directive wheel is installed on the support body in the adjustable mode of deflection, so directive wheel has the effect that certain amount of deflection plays spirally-guided, adopts bolt to carry out fixed-site again behind the good directive wheel inflection point to be adjusted.
Directive wheel not only plays the spirally-guided effect in this device, in the central shaft end of directive wheel counter stroke switch 6 or rotary encoder (not shown) are set in addition, collection to the directive wheel rotating signal is converted to act collection of body horizontal displacement signal, thereby is output control signals to the deceleration of control device control motor and stopped by counter stroke switch or rotary encoder.The output shaft idle running that employing is taken place when counter stroke switch or rotary encoder also can be avoided it being installed on the reducer output shaft end with the mode that directive wheel is installed mutually in the past and error signal that steel wire rope moves is gathered phenomenon has the advantage of precision height, good reliability.
In addition, the concrete structure of above-mentioned counter stroke switch is: be made of base 27, mount pad 20, microswitch 19, decimal system counting gear group 30, centre-driven gear (not label), its innovation part is: mount pad and base install at interval by the connectors such as fixed bar 31 of the uniform setting of periphery.The centre-driven gear vertically is installed on the center of installing plate below by its central shaft 25, and the centre-driven central gear axis can axially be movably installed on the installing plate by a spring 26.The periphery of centre-driven gear is provided with two groups of decimal system counting gear groups between mount pad and base, the input character wheel 28 common engagement centre-driven gears of each decimal system counting gear group, the output position of each decimal system counting gear group wheel 29 installs mutually with its central shaft 24, and this output position wheel central shaft is threaded onto on the installing plate plane and all is fixed with presser feet 22 in its end, in installing plate upper surface presser feet periphery two microswitches are installed, presser feet can contact the shell fragment 21 of corresponding microswitch contact in rotary course.The input character wheel of decimal system counting gear group is installed on its central shaft 23, and this central shaft end stretches out in the installing plate upper surface, and is shaped on the flat recess that is used to adjust at its end face.During initial the installation, the centre-driven central gear axis is pressed down, make the centre-driven gear break away from the engagement of organizing decimal system gear train input character wheel with each, according to the proportionate relationship of displacement and decimal system counting gear group revolution, adjust the initial position of each decimal system counting gear group by the central shaft of turn input character wheel.When motor was just changeing, when the counting gear group turned to desired location under the centre-driven meshed transmission gear, presser feet wink was moved with a microswitch contact and compresses, for motor provides stop signal; Move in this presser feet wink during the motor counter-rotating and leave the microswitch contact, another counting gear group is finished above-mentioned identical process, its presser feet and another microswitch contact compress, and for motor provides stop signal, realize the Stroke Control to stage curtain body, suspension rod or flexible stage thus.
Improvement as above-mentioned counter stroke switch, the periphery of centre-driven gear can be provided with four groups of decimal system counting gear groups between mount pad and base, the input character wheel of each decimal system counting gear group meshes the centre-driven gear jointly, in the corresponding distribution of installing plate upper surface four microswitches are installed, the presser feet that the wheel central shaft end, output position of each decimal system counting gear group is installed can contact corresponding microswitch contact respectively in rotary course.These two groups of decimal system counting gear groups of setting up can be set at the decelerate position gauge tap, and link to each other with frequency converter, and its operation principle is the same.When motor just went to desired location, one of decelerate position switch of setting up moved before the stop position switch motion, and reduce-speed sign is reached frequency converter, realized motor variable-frequency speed-regulating; Another decelerate position switch motion when motor reverses realizes the deceleration control of positive and negative both direction.The decelerate position switch has guaranteed stationarity and the security that stage curtain body, suspension rod, flexible stage move.
Counter stroke switch pedestal and the outside of the mount pad box body 32 that can also be provided with a sealing, this box body can be protected inner counting gear assembly of counter stroke switch and electric component, guarantees safe and reliable and prolongs its service life.This counter stroke switch has simple compactness, design ingenious, easy to install, adjust simple, the precision advantages of higher, not only can be installed on curtain curtain body and split the directive wheel center axle head of drive unit, also can be installed on the reduction unit output shaft end of other stage setting drive motors, thus also applicable to the lifting of suspension rod and flexible stage, the Stroke Control of stretching motion.
Claims (9)
1. stage curtain draw-gear, constitute by support body, motor, decelerator, traction sheave, motor and decelerator are installed on the support body, motor drives traction sheave by decelerator and rotates, it is characterized in that: described reducer output shaft is for being horizontally disposed with, on this output shaft, rotate vertical traction sheave is installed, in the both sides of this traction sheave coaxial respectively install ionization close and the dead electricity clutch with active toothed disk, simultaneously ionization the active fluted disc and the reducer output shaft that close install, the active fluted disc of dead electricity clutch is installed on the sprocket wheel of exporting axle head and installs with rotating.
2. stage curtain draw-gear according to claim 1, it is characterized in that: the side guiding at support body is equipped with one group of vertical slide bar, the upper end of this slide bar is installed in an installing plate bottom surface, all is set with thrust spring on the slide bar between support body and the installing plate.
3. stage curtain draw-gear according to claim 1 is characterized in that: described traction sheave is a double grooved pulley.
4. stage curtain draw-gear according to claim 3 is characterized in that: also be provided with a directive wheel that is positioned at above the traction sheave on the support body, this directive wheel is installed on the support body in the adjustable mode of deflection by a support.
5. stage curtain draw-gear according to claim 4, it is characterized in that: the end of the central shaft of described directive wheel is provided with counter stroke switch or rotary encoder, outputs control signals to motor by this counter stroke switch or rotary encoder.
6. stage curtain draw-gear according to claim 5, it is characterized in that: described counter stroke switch is by base, mount pad, microswitch, decimal system counting gear group, the centre-driven gear constitutes, the centre-driven gear vertically is installed on the center of mount pad below by its central shaft, between the mount pad of centre-driven gear periphery and base, be provided with at least two group decimal system counting gear groups, the input character wheel of each decimal system counting gear group meshes the centre-driven gear jointly, the output position wheel of each decimal system counting gear group installs with its central shaft, this output position wheel central shaft is threaded onto on the mount pad plane and all is fixed with presser feet in its end, at the mount pad upper surface at least two microswitches are installed, presser feet contacts corresponding microswitch contact in rotary course.
7. stage curtain draw-gear according to claim 6, it is characterized in that: the periphery of centre-driven gear is provided with four groups of decimal system counting gear groups between mount pad and base, the input character wheel of each decimal system counting gear group meshes the centre-driven gear jointly, in the corresponding distribution of mount pad upper surface four microswitches are installed, the presser feet that the central shaft end of the output position wheel of each decimal system counting gear group is installed contacts corresponding microswitch contact respectively in rotary course.
8. according to claim 6 or 7 described stage curtain draw-gears, it is characterized in that: the input character wheel of described decimal system counting gear group installs mutually with its central shaft, input character wheel central shaft end stretches out in the mount pad upper surface, and is shaped on the flat recess that is used to adjust at its end face.
9. stage curtain draw-gear according to claim 8 is characterized in that: the outer enclosure at pedestal and mount pad has a sealing box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200745527U CN201186166Y (en) | 2008-04-28 | 2008-04-28 | Stage large curtain towing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200745527U CN201186166Y (en) | 2008-04-28 | 2008-04-28 | Stage large curtain towing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201186166Y true CN201186166Y (en) | 2009-01-28 |
Family
ID=40309181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200745527U Expired - Lifetime CN201186166Y (en) | 2008-04-28 | 2008-04-28 | Stage large curtain towing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201186166Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915535A (en) * | 2010-07-21 | 2010-12-15 | 阮小华 | Depth tester for water lifting platform |
| CN101569797B (en) * | 2008-04-28 | 2012-05-23 | 马超 | Multifunctional hoisting bisecting stage act curtain towing mechanism |
| CN107930140A (en) * | 2017-11-25 | 2018-04-20 | 华强方特（芜湖）文化科技有限公司 | A kind of adjustable steel wire rope guider of tractor |
-
2008
- 2008-04-28 CN CNU2008200745527U patent/CN201186166Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569797B (en) * | 2008-04-28 | 2012-05-23 | 马超 | Multifunctional hoisting bisecting stage act curtain towing mechanism |
| CN101915535A (en) * | 2010-07-21 | 2010-12-15 | 阮小华 | Depth tester for water lifting platform |
| CN107930140A (en) * | 2017-11-25 | 2018-04-20 | 华强方特（芜湖）文化科技有限公司 | A kind of adjustable steel wire rope guider of tractor |
| CN107930140B (en) * | 2017-11-25 | 2023-10-13 | 华强方特（芜湖）文化科技有限公司 | Adjustable steel wire rope guiding device of tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin Alex Hua Tian stage technology Engineering Co., Ltd. Assignor: Ma Chao Contract record no.: 2010120000176 Denomination of utility model: Stage large curtain towing mechanism Granted publication date: 20090128 License type: Exclusive License Record date: 20101206 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090128 Effective date of abandoning: 20080428 |