Large-span multi-curvature electric bent steel glass window synchronously controlled by transverse shutters

Abstract

The invention discloses a large-span multi-curvature electric bent steel glass window synchronously controlled by transverse shutters, which adopts a multi-directional synchronous compensation coupler to construct a sectional type synchronous transmission chain and solves the problem of transmission out-of-step of a traditional system under a complex curved surface. The window body structure comprises a window body frame assembly, a bent tempered glass panel, a transverse venetian blind set and a driving mechanism. The transverse venetian blind set comprises a plurality of transverse venetian blind mechanisms, all the mechanisms are transversely and horizontally arranged along the arc-shaped glass cavity, and the adjacent mechanisms are connected in a segmented mode through couplers to form a synchronous transmission chain. The full-window shutter angle is accurately regulated and controlled through a synchronous transmission chain, and the full-window shutter angle adjusting device is particularly suitable for large-span curved-surface buildings such as airport terminals and stadiums and has the advantages of being high in sunshade efficiency, high in structural stability, good in installation adaptability and the like.

Description

Technical Field

[0001] The invention relates to the technical field of hollow louver glass windows, and in particular to an electric bent steel glass window with synchronously controlled large-span multi-curvature transverse louvers. Background Art

[0002] The horizontal shutter synchronization control system of traditional curved steel glass windows has the following technical bottlenecks, which urgently need to be broken through through innovative design:

[0003] 1. Synchronicity defects of large-span windows

[0004] When the horizontal width of the window exceeds 2 meters or the number of curtains exceeds 10 groups, the traditional coupling will cause the lifting deviation of the first and last curtains to exceed ±5mm and the flip angle error to exceed ±3° due to the accumulated error of the transmission chain. The existing technology alleviates the friction problem by optimizing the slide rail material or adding lubricating parts, but it does not solve the problem of synchronization degradation caused by torque attenuation at the end of the large-span transmission chain.

[0005] For example, actual measurements show that the lifting and lowering error of the end curtain in a 3-meter-wide window can reach ±6.5mm, and the flipping angle error expands to ±4.8°, seriously affecting the stability of the high-rise building shading system.

[0006] 2. Insufficient adaptability to high curvature

[0007] When the window curvature radius R is less than 1000mm, the traditional coupling angle compensation capability (usually only ±5°) is insufficient, resulting in uneven torque transmission and further expansion of the synchronization error to ±8°. In addition, the mismatch between the curtain body spacing and curvature can easily cause friction interference between the curtain body and the curved glass cavity wall. The measured friction interference rate is as high as 15%, which accelerates the wear of the transmission components.

[0008] Although the existing solution improves synchronization through segmented couplings, it lacks standardized design and requires customized arc louvers and special transmission components, which increases production costs by more than 40%.

[0009] 3. Lack of dynamic compensation and control mechanism

[0010] Traditional electric blinds rely on static gear ratio transmission and cannot dynamically adjust transmission parameters according to the curvature of the window, resulting in insufficient compensation for linear speed differences. For example, when the curvature radius R = 750mm, the linear speed deviation of the traditional coupling reaches 12%, and the synchronization error increases exponentially with the number of operations.

[0011] At the same time, traditional closed-loop control systems rely on periodic reset operations, the reset process consumes additional time and power, and the synchronization error still cannot be effectively converged after reset.

[0012] 4. Durability and maintenance cost issues

[0013] In the existing scheme, the transmission parts such as hoist ropes and gears are prone to fatigue fracture due to long-term alternating stress. Experimental data shows that after 100,000 consecutive operations, the transmission efficiency of the traditional coupling drops to less than 80%, the synchronization error expands to ±12mm, and the maintenance frequency increases by 3 times.

[0014] Therefore, an innovative solution that combines dynamic compensation, high curvature adaptation and low-cost mass production is urgently needed. Summary of the invention

[0015] In view of the technical problems existing in the above-mentioned prior art, the purpose of the present invention is to propose an electric bent steel glass window with large-span multi-curvature transverse blinds with synchronous control, which solves the technical problem of poor synchronization in the lifting and flipping of the transverse blinds when the window width exceeds 2 meters or the curvature radius is less than 1000mm through dynamic gear ratio adjustment of the multi-directional synchronous compensation coupling, ±20° angle compensation of the punched coupling plate and optimized design of the blind spacing.

[0016] The technical solution adopted by the present invention to solve its technical problem is:

[0017] An electric curved steel glass window with large-span multi-curvature lateral blinds synchronously controlled, characterized by comprising:

[0018] The window frame assembly is composed of an arc-shaped top frame, an arc-shaped bottom frame and straight frames on both sides, which form a closed ring frame through corner connectors, and the curvature radius R is 500-5000mm;

[0019] The bent steel glass panel is bonded to the front and back sides of the window frame assembly by structural adhesive to form a hollow curved glass cavity;

[0020] A transverse venetian blind group, comprising a plurality of transverse venetian blind mechanisms, each mechanism being arranged horizontally along the arc-shaped glass cavity, and adjacent transverse venetian blind mechanisms being connected in sections through a multi-directional synchronous compensation coupling to form a synchronous transmission chain;

[0021] The horizontal blind mechanism comprises a blind, a blind shaft and a plurality of winding drums; the winding drums are equidistantly mounted on the blind shaft, and the driving rope of the blind is wound around the winding drums;

[0022] A driving mechanism, including a reduction motor and a motor limiter, wherein the reduction motor is connected to the venetian blind rotating shaft of the first set of transverse venetian blind mechanisms to drive the first set of transverse venetian blind mechanisms;

[0023] Multi-directional synchronous compensation coupling, including:

[0024] Two symmetrical split housings, in which the input shaft cylinder and the output shaft cylinder are symmetrically installed through ball bearings; the input shaft cylinder and the output shaft cylinder are respectively connected to the venetian blind rotating shafts of two adjacent horizontal venetian blind mechanisms;

[0025] The input cone driving gear meshes with the input cone driven gear to form a first stage transmission, and the input cone driving gear is fixedly connected to one end of the input shaft cylinder;

[0026] The spur gear driving gear and the spur gear driven gear mesh with each other to form the second stage transmission. The spur gear driving gear and the input bevel driven gear are coaxially fixed to the driving shaft, and the spur gear driven gear and the output bevel gear driving gear are coaxially fixed to the driven shaft. The driving shaft and the driven shaft are respectively fixed in the housings of the two split housings.

[0027] The output cone driving gear meshes with the output cone passive gear to form a third stage transmission, and the output cone passive gear is fixedly connected to one end of the output shaft cylinder;

[0028] A punched coupling plate, connecting the active rotating shaft and the passive rotating shaft, wherein the shaft hole allows for ±20° angle deviation compensation between the two rotating shafts, and an elastic damping material layer is provided on the edge of the shaft hole;

[0029] The gear ratio of the spur-tooth driving gear to the spur-tooth driven gear is dynamically adjusted according to the window curvature radius R to compensate for the difference in transmission line speed.

[0030] A further preferred technical solution is that the split housing is in a concave shape, and its two arms are symmetrically provided with housing shaft holes, and a power shaft hole is provided on the bottom surface. The input shaft cylinder and the output shaft cylinder are respectively installed in the power shaft holes of the two split housings, and the active rotating shaft and the passive rotating shaft are respectively installed in the housing shaft holes of the two split housings through angular contact ball bearings.

[0031] According to a further preferred technical solution, the elastic damping material layer is made of silicone or polyurethane, has a thickness of 2-5 mm, and a Shore hardness of 50A-70A.

[0032] According to a further preferred technical solution, the tooth top circle diameter tolerance of the spur-tooth driving gear and the spur-tooth driven gear is controlled within IT6 level precision, the tooth surface is nitrided, and the surface hardness is ≥HV800.

[0033] In a further preferred technical solution, the gear ratio of the spur gear driving gear to the spur gear driven gear is 1: The unit of R is mm, and the gear ratio ranges from 1:1.02 to 1.15.

[0034] In a further preferred technical solution, the spacing L between adjacent transverse venetian blind mechanisms satisfies:

[0035] When R<1000mm,

[0036] When R ≥ 1000mm,

[0037] In a further preferred technical solution, when the window curvature radius R is less than 800 mm, the spacing L between adjacent transverse venetian blind mechanisms is further reduced to

[0038] According to a further preferred technical solution, the driving mechanism further includes a Hall sensor and a main control module. The Hall sensor monitors the rotation angle of the blade shaft in real time. The main control module dynamically adjusts the motor speed according to the feedback signal to make the turning angle error of the head and tail curtain bodies ≤±0.4°.

[0039] Further preferred technical solution, when the window width W ≥ 3 meters, the number of segmented connections of the multi-directional synchronous compensation coupling is The coaxiality error between the input shaft and the output shaft of each coupling section is ≤0.05mm.

[0040] According to a further preferred technical solution, the arc-shaped top frame includes a frame body and a cover plate, and the two are connected by a slot to facilitate later disassembly and maintenance.

[0041] The beneficial effects of the present invention are:

[0042] 1. Significant improvement in large-span synchronization

[0043] Dynamic gear ratio adjustment: The gear ratio of the spur gear driving gear and the passive gear is dynamically adjusted (1:1.02~1.15) to compensate for the linear speed difference caused by the curvature of the window. For example, when the curvature radius R=750mm, the gear ratio is set to 1:1.08, and the lifting error of the first and last curtains is reduced from ±7.2mm to ±0.7mm, and the error is reduced by 87.7%.

[0044] Coupling segment design: When the window width is ≥ 3 meters, the number of coupling segments is The coaxiality error of each input / output shaft is ≤0.05mm, which suppresses the cumulative error of the transmission chain. The measured 3-meter window lifting and lowering synchronization error is ≤±0.8mm, which is 8 times higher than the traditional solution.

[0045] 2. Breakthrough in high curvature adaptability and stability

[0046] ±20° angle compensation of punched coupling plate: A silicone elastic damping layer is set on the edge of the axis hole of the punched coupling plate, allowing ±20° angle compensation between the active and passive shafts to solve the problem of uneven torque transmission when R<800mm. When the measured curvature radius R=750mm, the flip angle error is reduced from ±5.5° to ±0.3°, and the synchronization stability is significantly improved.

[0047] Dynamic encryption of curtain body spacing: When R < 1000mm, the distance between adjacent curtain bodies When R ≥ 1000mm, Prevent friction interference between the curtain body and the curved glass cavity wall. Comparative experiments show that the friction interference rate is reduced from 18% to 2.1%, extending the life of the transmission parts.

[0048] 3. Modular design and production cost optimization

[0049] Split housing: The concave symmetrical housing is detachably connected by snaps, adapting to windows of different curvatures and reducing customization requirements. Standardized components reduce production costs by 42% and installation and maintenance time by 60%.

[0050] Nitriding gears and ball bearings: The tooth surfaces of spur gears are nitrided (surface hardness HV ≥ 800), and ball bearings are set at the coupling sections. After running continuously for 100,000 times, the transmission efficiency remains at 96.8%, and the wear is small.

[0051] 4. Improved control accuracy and reliability

[0052] Hall sensor closed-loop control: The Hall sensor monitors the rotation angle of the blinds in real time, and the main control module dynamically adjusts the motor speed. The full-window flip angle error is ≤±0.4°, which improves the efficiency of periodic reset operation by 25% compared with traditional solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the window frame structure of the present invention.

[0054] Figure 2 It is a schematic diagram of the connection of adjacent transverse blind mechanisms.

[0055] Figure 3 It is a structural schematic diagram of a multi-directional synchronous compensation coupling.

[0056] In the figure: 100-window frame assembly, 110-arc top frame, 110a-frame, 110b-cover plate, 120-arc bottom frame, 130-straight frames on both sides, 140-corner connector, 200-bent steel glass panel, 300-transverse venetian blind assembly, 310-transverse venetian blind mechanism, 310a-venetian blind, 310b-venetian blind shaft, 310c-winding drum, 400-driving mechanism, 500-multi-directional synchronous compensation coupling Axle, 510a-split housing, 510b-split housing, 520a-input shaft, 520b-output shaft, 530a-input bevel driving gear, 530b-input bevel passive gear, 540a-spur gear driving gear, 540b-spur gear passive gear, 550a-driving shaft, 550b-passive shaft, 560a-output bevel driving gear, 560b-output bevel passive gear, 570-punched coupling plate DETAILED DESCRIPTION

[0057] The present invention is further described below in conjunction with the accompanying drawings.

[0058] Example 1: Large span window (W=3200mm, curvature radius R=1500mm)

[0059] The specific implementation structure of the present invention includes: a window frame assembly 100, a bent steel glass panel 200, a horizontal blind set 300, a driving mechanism 400 and a multi-directional synchronous compensation coupling 500. The specific structure of each part is as follows:

[0060] like Figure 1 As shown, the window frame assembly 100 includes a closed ring frame formed by an arc-shaped top frame 110, an arc-shaped bottom frame 120 and straight frames 130 on both sides through corner connectors 140, and the curvature radius R is 1500mm; 6063-T5 aluminum alloy profile is used.

[0061] The arc-shaped top frame 110 includes a frame body 110a and a cover plate 110b, and the two are connected by a slot to facilitate later disassembly and maintenance.

[0062] The bent steel glass panel 200 is bonded to the front and back surfaces of the window frame assembly 100 by means of structural adhesive to form a hollow curved glass cavity, and the transverse venetian blind assembly 300 is placed in the curved glass cavity.

[0063] like Figure 2 As shown, the transverse venetian blind group 300 includes a plurality of transverse venetian blind mechanisms 310, each mechanism is horizontally arranged along the arc-shaped glass cavity, and adjacent mechanisms are connected in sections through a multi-directional synchronous compensation coupling 500 to form a synchronous transmission chain;

[0064] The spacing L of the horizontal blind mechanism 310 is 60 mm (when ≥ 1000 mm, )

[0065] The horizontal blind mechanism 310 includes a blind 310a, a blind shaft 310b and a plurality of winding drums 310c. The winding drums 310c are equidistantly installed on the blind shaft 310b, and the driving rope of the blind 310a is wound around the winding drums 310c.

[0066] The driving mechanism 400 includes a reduction motor (rated torque 5 N·m), a motor limiter, a Hall sensor and a main control module. The reduction motor is connected to the blind shaft 310b of the first set of transverse blind mechanisms 310 through a flange coupling to drive the first set of transverse blind mechanisms 310. The Hall sensor monitors the rotation angle of the blind shaft 310b in real time, and the main control module adjusts the motor speed according to the feedback signal, with a closed-loop control accuracy of ±0.1°.

[0067] like Figure 3As shown, the multi-directional synchronous compensating coupling 500 comprises:

[0068] Two symmetrical split housings 510a and 510b are provided, and an input shaft cylinder 520a and an output shaft cylinder 520b are symmetrically installed in the two housings 510a and 510b through ball bearings; the input shaft cylinder 520a and the output shaft cylinder 520b are respectively connected to the venetian blind rotating shafts 310b of two adjacent horizontal venetian blind mechanisms 310;

[0069] The input bevel driving gear 530a and the input bevel driven gear 530b are meshed to form the first stage transmission. The input bevel driving gear 530a is fixedly connected to one end of the input shaft tube 520a. The input bevel driving gear 530a and the input bevel driven gear 530b have a module of 1.5 and are orthogonally meshed (axis angle 90°), transmitting power to the spur driving gear 540a.

[0070] The spur gear driving gear 540a meshes with the spur gear driven gear 540b to form the second stage transmission. The spur gear driving gear 540a and the input bevel driven gear 530b are coaxially fixed to the driving shaft 550a, and the spur gear driven gear 540b and the output bevel driving gear 560a are coaxially fixed to the driven shaft 550b. The driving shaft 550a and the driven shaft 550b are respectively fixed in the housings of the two split housings 510a and 510b.

[0071] The gear ratio of the spur gear driving gear 540a to the spur gear driven gear 540b is 1:1.06 (according to Formula 1: Calculation, where R is in mm), tooth top diameter tolerance IT6, tooth surface nitriding treatment (surface hardness HV800);

[0072] The output bevel driving gear 560a meshes with the output bevel driven gear 560b to form a third stage transmission, and the output bevel driven gear 560b is fixedly connected to one end of the output shaft cylinder 520b;

[0073] The punched coupling plate 570 connects the active shaft 550a and the passive shaft 550b. The shaft hole allows ±15° angle compensation between the active shaft 561 and the passive shaft 562. A thick silicone elastic damping layer with a Shore hardness of 60A is provided at the edge of the shaft hole.

[0074] Multi-directional synchronous compensation coupling 500 segment number is 4 groups The coaxiality error of each input / output shaft is ≤0.05mm.

[0075] The experimental comparison data are as follows:

[0076]

[0077] Example 2: High curvature window (W = 2500 mm, curvature radius R = 750 mm)

[0078] The specific implementation structure of this embodiment is different from that of Embodiment 1 in the following aspects:

[0079] The spacing between the curtain bodies is increased: the spacing between adjacent curtain bodies is L = 25 mm (R / 30 = 25 mm), and the spacing between the blinds 310a and the glass cavity wall after unfolding is ≤ 2 mm;

[0080] Strengthened coupling design: The angle compensation of the punched coupling plate 570 is extended to ±18°, and the thickness of the elastic damping layer is increased to 5mm (polyurethane material, Shore hardness 70A); the gear ratio of the spur gear 540a and the spur gear 540b is 1:1.08, the module is 2.0, and the torque capacity is increased to 30N·m;

[0081] Needle roller bearing: Needle roller bearings (model NK17 / 16) are added at the coupling sections, with a radial load of 12kN and a transmission efficiency of ≥98%.

[0082] Multi-directional synchronous compensation coupling 500 segment number is 3 groups The coaxiality error of each input / output shaft is ≤0.05mm.

[0083] The experimental comparison data are as follows:

[0084]

[0085] Here’s how it works:

[0086] (I) Power transmission and compensation:

[0087] The reduction motor drives the front end venetian blind rotating shaft 310b, and the power is transmitted to the curtain body of the end transverse venetian blind mechanism 310 through the segmented transmission chain of the multi-directional synchronous compensation coupling 500;

[0088] The input bevel driving gear 530a and the input bevel driven gear 530b are orthogonally meshed to achieve 90° power steering; the spur driving gear 540a and the spur driven gear 540b compensate for the linear speed difference caused by the curvature through the dynamic gear ratio;

[0089] The elastic damping layer of the punched coupling plate 570 absorbs high frequency vibrations and allows compensation for angular deviations of ±15° to ±20° between the rotating shafts.

[0090] (ii) Closed-loop control:

[0091] The Hall sensor collects the angle data of the blind shaft 310b every 0.1 seconds, and the main control module dynamically adjusts the motor speed to ensure that the synchronization error of the blinds for all windows is ≤±0.4°;

[0092] The motor limiter accurately controls the lifting height according to the preset pulse number (error ≤±0.8mm).

[0093] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0094] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric curved steel glass window with large span and multi-curvature horizontal blinds synchronously controlled, characterized in that: include: The window frame assembly is composed of an arc-shaped top frame, an arc-shaped bottom frame and straight frames on both sides, which are connected by corner connectors to form a closed ring frame; The bent steel glass panel is bonded to the front and back sides of the window frame assembly by structural adhesive to form a hollow curved glass cavity; A transverse venetian blind group, comprising a plurality of transverse venetian blind mechanisms, each mechanism being arranged horizontally along the arc-shaped glass cavity, and adjacent transverse venetian blind mechanisms being connected in sections through a multi-directional synchronous compensation coupling to form a synchronous transmission chain; The horizontal blind mechanism comprises a blind, a blind shaft and a plurality of winding drums; the winding drums are equidistantly mounted on the blind shaft, and the driving rope of the blind is wound around the winding drums; A driving mechanism, including a reduction motor and a motor limiter, wherein the reduction motor is connected to the venetian blind rotating shaft of the first set of transverse venetian blind mechanisms to drive the first set of transverse venetian blind mechanisms; Multi-directional synchronous compensation coupling, including: Two symmetrical split housings, in which the input shaft cylinder and the output shaft cylinder are symmetrically installed through ball bearings; the input shaft cylinder and the output shaft cylinder are respectively connected to the venetian blind rotating shafts of two adjacent horizontal venetian blind mechanisms; The input cone driving gear meshes with the input cone driven gear to form a first stage transmission, and the input cone driving gear is fixedly connected to one end of the input shaft cylinder; The spur gear driving gear and the spur gear driven gear mesh with each other to form the second stage transmission. The spur gear driving gear and the input bevel driven gear are coaxially fixed to the driving shaft, and the spur gear driven gear and the output bevel gear driving gear are coaxially fixed to the driven shaft. The driving shaft and the driven shaft are respectively fixed in the housings of the two split housings. The output cone driving gear meshes with the output cone passive gear to form a third stage transmission, and the output cone passive gear is fixedly connected to one end of the output shaft cylinder; A punched coupling plate, connecting the active rotating shaft and the passive rotating shaft, wherein the shaft hole allows for ±20° angle deviation compensation between the two rotating shafts, and an elastic damping material layer is provided on the edge of the shaft hole; The gear ratio of the spur-tooth driving gear to the spur-tooth driven gear is dynamically adjusted according to the window curvature radius R to compensate for the difference in transmission line speed.

2. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 1, characterized in that: The split housing is in a concave shape, with housing shaft holes symmetrically provided in its two arms and a power shaft hole provided on the bottom surface. The input shaft cylinder and the output shaft cylinder are respectively installed in the power shaft holes of the two split housings, and the active rotating shaft and the passive rotating shaft are respectively installed in the housing shaft holes of the two split housings through angular contact ball bearings.

3. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 1, characterized in that: The elastic damping material layer is made of silica gel or polyurethane.

4. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 1, characterized in that: The gear ratio of the spur gear driving gear to the spur gear driven gear is The unit of the window curvature radius R is mm, and the gear ratio ranges from 1:1.02 to 1.

15.

5. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 1, characterized in that: The spacing L between adjacent transverse blind mechanisms satisfies: when the window curvature radius R<1000mm, When the window curvature radius R ≥ 1000mm, 6. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 5, characterized in that: When the window curvature radius R is less than 800 mm, the spacing L between adjacent transverse blind mechanisms is further reduced to 7. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 1, characterized in that: The driving mechanism also includes a Hall sensor and a main control module. The Hall sensor monitors the rotation angle of the blade shaft in real time. The main control module dynamically adjusts the motor speed according to the feedback signal to make the turning angle error of the first and last curtain bodies ≤±0.4°.

8. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 1, characterized in that: When the window width W ≥ 3 meters, the number of segmented connections of the multi-directional synchronous compensation coupling is The coaxiality error between the input shaft and the output shaft of each coupling section is ≤0.05mm.

9. The electric curved steel glass window with large span and multi-curvature horizontal blinds with synchronous control as claimed in claim 1, characterized in that: The arc-shaped top frame includes a frame body and a cover plate, and the two are connected through a slot.

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