CN207337059U - A kind of screen tensioning apparatus - Google Patents
A kind of screen tensioning apparatus Download PDFInfo
- Publication number
- CN207337059U CN207337059U CN201721000615.XU CN201721000615U CN207337059U CN 207337059 U CN207337059 U CN 207337059U CN 201721000615 U CN201721000615 U CN 201721000615U CN 207337059 U CN207337059 U CN 207337059U
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- screen
- steel wire
- wire rope
- tensioning
- winding axis
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 22
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a kind of screen tensioning apparatus,Axis is wound including screen,The inner surface axis connection of the screen winding axis has conveyer belt,The outer surface of the screen winding axis is also symmetrically installed with two tightener sheaves,And the outer surface of two tightener sheaves is wound with steel wire rope,The output terminal of the steel wire rope is wrapped in the outer surface of leading block,And the inner wall of leading block is connected on the left surface of tensioning hydro-cylinder by rotating,The input terminal of the steel wire rope is wrapped on the outer surface for rotating roller,The lower end for rotating roller is connected by shaft with drive motor,The lower end of the drive motor is connected with rotary electric machine,Whole device is using two kinds of tensioning modes of rotary electric machine and tensioning hydro-cylinder,Both large-scale stroke tensioning can have been realized,Buffering and fine setting can be played the role of by tensioning hydro-cylinder again,Realize small range of stroke tensioning,So as to improve the stability and rapidity of system operation.
Description
Technical field
Screen tensioning apparatus technical field is the utility model is related to, is specially a kind of screen tensioning apparatus.
Background technology
With expanding economy and the progress of science and technology, research of the people for electronic product industry is more and more, at present,
All using screen as the curtain showed a film in many movie theatres even smart home, screen mainly uses tensioning apparatus by curtain
Cloth tenses so that whole curtain is more neat, can effectively improve motion picture projection effect, but the tension device of screen makes
The defects of certain is still had during：
(1) existing screen tension device can not be detected for the tension force of rope in use, thus to screen into
Easily there is the phenomenon of bearing up-down force inequality when tensing in row；
(2) shaft and tension device are provided separately by existing screen tension device, and whole tension device volume is larger, are increased
The space inside movie projector is added so that floor space is larger；
The content of the invention
In order to overcome the shortcomings of prior art, the utility model provides a kind of screen tensioning apparatus, had both solved general
Lead to the problem of screen tension device pulling force is uneven, also add guide roller so that the direction of whole pulling force can be with needs
Adjustment, and tension device and screen winding axis are combined together, the floor space of whole tension device is reduced, and conveniently
Install and use, can effectively solve the problem that the problem of background technology proposes.
Technical solution is used by the utility model solves its technical problem：A kind of screen tensioning apparatus, including screen
Axis is wound, the inner surface axis connection of the screen winding axis has conveyer belt, and the both ends of the screen winding axis are inlayed by ball
On the inner surface of guide rail, the outer surface of the screen winding axis is also symmetrically installed with two tightener sheaves, and two tensioning rollings
The outer surface of wheel is wound with steel wire rope, and the output terminal of the steel wire rope is wrapped in the outer surface of leading block, and leading block
Inner wall be connected to by rotating on the left surface of tensioning hydro-cylinder, the input terminal of the steel wire rope is wrapped in the appearance for rotating roller
On face, and rotate roller and be fixedly mounted on the upper surface of bearing, the lower end for rotating roller passes through shaft and drive motor
It is connected, the lower end of the drive motor is connected with rotary electric machine, and the lower end of the rotary electric machine is fixedly mounted on supporting rack
Upper surface.
As a kind of technical solution for having choosing of the utility model, the end of the steel wire rope is connected with tension sensor,
The tension sensor is fixedly mounted on the inner surface of control box, and the front of the control box is additionally provided with connecting interface.
As a kind of technical solution for having choosing of the utility model, multiple limits are additionally provided with the inner wall of the screen winding axis
Position block, and multiple limited blocks are symmetrically distributed on the surface of screen winding axis.
As a kind of technical solution for having choosing of the utility model, multiple fixed ropes are installed with the front of the bearing
Seat, and multiple fixed rope seats are symmetrically distributed in the surrounding of bearing.
As a kind of technical solution for having choosing of the utility model, the right end of the tensioning hydro-cylinder passes through connecting rod and supporting rack
Left surface be connected.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model fixes tension sensor on a steel cord, is connected by the connecting interface on control box surface outer
The electric control system collection tension sensor data on boundary, and compared with the tension value of setting, according to comparative result, according to micro- place
The program in device is managed, corresponding control signal is sent, proportional pressure control valve is acted on after conditioned circuit, and then adjusts its aperture,
Corresponding actions are made by the change executive component of spillway discharge, so as to reach the mesh for adjusting belt tension size in real time
So that whole tension device is more uniform to the active force of screen；
(2) the utility model passes through external control system by providing power installed in supporting rack surface pivots motor
Collection driving motor current signal, due between electric current and load there are certain linear relationship, therefore can according to driving current of electric
Size identify the load capacity on conveyer belt, alarm signal sent when electric current transfinites and shut down, be so as to fulfill to operation
The duplicate protection of system, greatly improves the safety and stability of system.
(3) tensioning apparatus of the utility model disclosure satisfy that screen is starting, needed for stable operation and shutdown three phases
Differential tension, responsive load can accurately change during stable operation, keep belt tension constant.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is that the screen of the utility model winds axis scheme of installation.
In figure：1- screens wind axis；2- guide rails；3- conveyer belts；4- tightener sheaves；5- leading blocks；6- steel wire ropes；7- turns
Dynamic card slot；8- tensioning hydro-cylinders；9- bearings；10- fixed rope seats；11- rotates roller；12- shafts；13- drive motors；14- is rotated
Motor；15- supporting racks；16- tension sensors；17- steel wire rope fixing brackets；18- connecting interfaces；19- control box；20- is spacing
Block；21- connecting rods.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
The explanation of following embodiment is refer to the attached drawing, can be to the particular implementation implemented to example the utility model
Example.The direction and position term that the utility model is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", "
It is interior ", " outer ", " side " etc., be only the direction and position with reference to annexed drawings.Therefore, the direction and position term used is to use
To illustrate and understand the utility model, and it is not used to limitation the utility model.
Embodiment：
As depicted in figs. 1 and 2, the utility model provides a kind of screen tensioning apparatus, including screen winding axis 1, described
The inner surface axis connection of screen winding axis 1 has conveyer belt 3, and multiple limited blocks are additionally provided with the inner wall of the screen winding axis 1
20, and multiple limited blocks 20 are symmetrically distributed on the surface of screen winding axis 1, can be as needed using screen winding axis 1
Screen is shunk or struts use, extends the service life of screen, the both ends of the screen winding axis 1 are inlayed by ball
On the inner surface of guide rail 2, the outer surface of the screen winding axis 1 is also symmetrically installed with two tightener sheaves 4, and two tensionings
The outer surface of roller 4 is wound with steel wire rope 6, and the output terminal of the steel wire rope 6 is wrapped in the outer surface of leading block 5, and leads
It is connected to the inner wall of pulley 5 by rotating card slot 7 on the left surface of tensioning hydro-cylinder 8, since the distance of screen movement is small, according to
Tensioning hydro-cylinder 8 responds fast but this limited characteristic of stroke of tension, ensure that the stable operation of screen, the right side of the tensioning hydro-cylinder 8
End is connected by connecting rod 21 with the left surface of supporting rack 15, and the input terminal of the steel wire rope 6, which is wrapped in, rotates roller 11
On outer surface, the end of the steel wire rope can adjust its tensioning degree by the rotating of motor so that the tension force of steel wire rope
It can adjust, and rotate roller 11 and be fixedly mounted on the upper surface of bearing 9, be installed with the front of the bearing 9 more
A fixed rope seat 10, and multiple fixed rope seats 10 are symmetrically distributed in the surrounding of bearing 9, the lower end for rotating roller 11 is by turning
Axis 12 is connected with drive motor 13, and the lower end of the drive motor 13 is connected with rotary electric machine 14, the rotary electric machine 14
Lower end be fixedly mounted on the upper surface of supporting rack 15, drive drive motor to realize the rotation of shaft using rotary electric machine so that
Drive and rotate roller rotation, realize the adjusting of steel wire rope, improve the conformability of whole wire rope device so that tensioning control
It is more convenient.
As shown in Figure 1, the end of the steel wire rope 6 is installed with tension sensor 16, and the end of steel wire rope 6 passes through
The inner wall of tension sensor 16 is connected with being arranged on the steel wire rope fixing bracket 17 of 16 right end of tension sensor, for prevent due to
16 precise decreasing of tension sensor and cause tensioner systems control to occur abnormal and add current protection link, the link
Detection device is controlled by external controller, realizes the duplicate protection to system, greatly improves the reliability of system, the steel
The inside of cord fixing bracket 17 is additionally provided with control box 19, and the both sides of the control box 19 are additionally provided with connecting interface 18, whole
A device can not only realize large-scale stroke tensioning, but also can rely on and open using two kinds of tensioning modes of rotary electric machine and tensioning hydro-cylinder
Locking oil cylinder plays the role of buffering and fine setting, realizes the tensioning of small range of stroke, thus improve system operation stability and
Rapidity.
In conclusion the utility model is mainly characterized by：
(1) the utility model fixes tension sensor on a steel cord, is connected by the connecting interface on control box surface outer
The electric control system collection tension sensor data on boundary, and compared with the tension value of setting, according to comparative result, according to micro- place
The program in device is managed, corresponding control signal is sent, proportional pressure control valve is acted on after conditioned circuit, and then adjusts its aperture,
Corresponding actions are made by the change executive component of spillway discharge, so as to reach the mesh for adjusting belt tension size in real time
So that whole tension device is more uniform to the active force of screen；
(2) the utility model passes through external control system by providing power installed in supporting rack surface pivots motor
Collection driving motor current signal, due between electric current and load there are certain linear relationship, therefore can according to driving current of electric
Size identify the load capacity on conveyer belt, alarm signal sent when electric current transfinites and shut down, be so as to fulfill to operation
The duplicate protection of system, greatly improves the safety and stability of system.
(3) tension device and screen winding axis are combined together by the tensioning apparatus of the utility model, reduce whole drawing
The floor space of tight device, and conveniently install and use, screen is disclosure satisfy that in startup, stable operation and shuts down three phases institute
Need differential tension, when stable operation can accurately responsive load change, and keep belt tension constant.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (5)
- A kind of 1. screen tensioning apparatus, it is characterised in that：Including screen winding axis (1), the inner surface of the screen winding axis (1) Axis connection has conveyer belt (3), and the both ends of the screen winding axis (1) are embedded in by ball on the inner surface of guide rail (2), described The outer surface of screen winding axis (1) is also symmetrically installed with two tightener sheaves (4), and the outer surface of two tightener sheaves (4) is equal Steel wire rope (6) is wound with, the output terminal of the steel wire rope (6) is wrapped in the outer surface of leading block (5), and leading block (5) Inner wall be connected to by rotating card slot (7) on the left surface of tensioning hydro-cylinder (8), the input terminal of the steel wire rope (6) is wrapped in On the outer surface for rotating roller (11), and rotate roller (11) and be fixedly mounted on the upper surface of bearing (9), the rotation roller (11) lower end is connected by shaft (12) with drive motor (13), the lower end of the drive motor (13) and rotary electric machine (14) it is connected, the lower end of the rotary electric machine (14) is fixedly mounted on the upper surface of supporting rack (15).
- A kind of 2. screen tensioning apparatus according to claim 1, it is characterised in that：The end of the steel wire rope (6) is fixed Tension sensor (16) is installed, and the inner wall of the end of steel wire rope (6) through tension sensor (16) is passed with being arranged on tension force The steel wire rope fixing bracket (17) of sensor (16) right end is connected, and the inside of the steel wire rope fixing bracket (17) is additionally provided with control Box (19) processed, the both sides of the control box (19) are additionally provided with connecting interface (18).
- A kind of 3. screen tensioning apparatus according to claim 1, it is characterised in that：The inner wall of the screen winding axis (1) On be additionally provided with multiple limited blocks (20), and multiple limited blocks (20) are symmetrically distributed on the surface of screen winding axis (1).
- A kind of 4. screen tensioning apparatus according to claim 1, it is characterised in that：It is fixed on the front of the bearing (9) Multiple fixed rope seats (10) are installed, and multiple fixed rope seats (10) are symmetrically distributed in the surrounding of bearing (9).
- A kind of 5. screen tensioning apparatus according to claim 4, it is characterised in that：The right end of the tensioning hydro-cylinder (8) leads to The left surface that connecting rod (21) is crossed with supporting rack (15) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000615.XU CN207337059U (en) | 2017-08-11 | 2017-08-11 | A kind of screen tensioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000615.XU CN207337059U (en) | 2017-08-11 | 2017-08-11 | A kind of screen tensioning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207337059U true CN207337059U (en) | 2018-05-08 |
Family
ID=62372944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721000615.XU Active CN207337059U (en) | 2017-08-11 | 2017-08-11 | A kind of screen tensioning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207337059U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286556A (en) * | 2019-08-01 | 2019-09-27 | 盐城天锐先锋电子科技有限公司 | A curtain control method and control mechanism |
| CN112213912A (en) * | 2020-10-23 | 2021-01-12 | 江苏精仪达科技有限公司 | Multifunctional lifting hoisting point device |
| CN112433461A (en) * | 2020-11-23 | 2021-03-02 | 深圳市精准时计科技有限公司 | Pointer type radio controlled movement |
-
2017
- 2017-08-11 CN CN201721000615.XU patent/CN207337059U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286556A (en) * | 2019-08-01 | 2019-09-27 | 盐城天锐先锋电子科技有限公司 | A curtain control method and control mechanism |
| CN110286556B (en) * | 2019-08-01 | 2020-12-15 | 盐城天锐先锋电子科技有限公司 | A curtain control method and control mechanism |
| CN112213912A (en) * | 2020-10-23 | 2021-01-12 | 江苏精仪达科技有限公司 | Multifunctional lifting hoisting point device |
| CN112433461A (en) * | 2020-11-23 | 2021-03-02 | 深圳市精准时计科技有限公司 | Pointer type radio controlled movement |
| CN112433461B (en) * | 2020-11-23 | 2021-09-03 | 深圳市精准时计科技有限公司 | Pointer type radio controlled movement |
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