Steel wire rope transmission inner sunshade system
By optimizing the wire rope transmission system, the problems of high resistance and large shading area in traditional greenhouse shading systems have been solved, achieving an internal shading effect with low energy consumption, high stability, and low maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 张维业
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional greenhouse shading systems suffer from high frictional resistance, high energy consumption, bulkiness, and large shading area due to their gear and rack transmission, resulting in high operating costs and poor light uniformity. Furthermore, the flexible transmission design suffers from poor transmission stability and susceptibility to damage.
A wire rope drive system is adopted, including a drive shaft, a drive motor, a drive wire rope, and a drive side aluminum profile. The drive motor and drive shaft are connected by a sprocket-type coupling. A tensioning sleeve and a suspension wheel are set up. The transmission structure is optimized by combining galvanized steel pipe and plastic-coated wire rope to reduce resistance and improve stability.
It reduces transmission resistance, reduces the shading area to below 0.3 meters, improves transmission stability and synchronization accuracy, reduces maintenance costs and extends service life.
Smart Images

Figure CN224234345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural facility shading systems, specifically to a wire rope driven internal shading system. Background Technology
[0002] Traditional greenhouses commonly use rack and pinion internal shading systems, which open and close the curtain through a rigid frame and gear meshing. These systems suffer from high frictional resistance in the transmission components, resulting in high energy consumption. The bulky metal frame further increases the overall cost and space occupancy. When the curtain is retracted, its width typically reaches 0.4-0.5 meters, leading to the formation of large shading areas that affect the uniformity of light transmission within the greenhouse and the crop growth environment. Furthermore, the complex gear transmission structure results in high daily maintenance costs and is prone to mechanical failures due to uneven load distribution in multi-span greenhouses.
[0003] With the large-scale development of greenhouses, the need to reduce shading area and lower operating energy consumption is becoming increasingly urgent. Existing improvement solutions attempt to optimize gear transmission or use lightweight materials, but none have effectively solved the core problems of bulky structure and large shading area. Designs that utilize flexible transmission still face technical bottlenecks such as poor transmission stability and easy stretching, deformation, or breakage of steel wire ropes. Therefore, there is an urgent need for a low-resistance, lightweight internal shading system with controllable shading area to meet the demands of modern greenhouses for efficient lighting and energy-saving control. Utility Model Content
[0004] In view of the above-mentioned technical problems in related technologies, this utility model proposes a wire rope driven internal sunshade system, which can overcome the above-mentioned shortcomings of the prior art.
[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:
[0006] A wire rope driven internal sunshade system;
[0007] The steel wire rope driven internal shading system includes a drive shaft, a drive motor, a drive steel wire rope, and a drive side aluminum profile. The drive shaft is coaxially connected to the output shaft of the drive motor via a sprocket coupling and extends longitudinally along the greenhouse. Several tension sleeves are fixed at intervals on the drive shaft, with two tension sleeves symmetrically arranged at each installation point. The drive steel wire rope is arranged in sets at intervals of 3.2-4 meters, and a suspension wheel and a reversing wheel are respectively provided in the middle and at both ends of the drive steel wire rope. The suspension wheels are installed at intervals of 8 meters below the composite beam at the drive steel wire rope location. The drive side aluminum profile is fixed to the end of the internal shading curtain with a snap ring, and positioning clips are provided at the intersections with the curtain support line and the curtain pressure line. The curtain support line and the curtain pressure line are respectively fixed to the upper and lower sides of the crossbeam.
[0008] Furthermore, the drive motor has a speed of 5.2 rpm, a power of 0.75 kW, and a torque of 800 Nm. The drive shaft is made of galvanized steel pipe with an outer diameter of 60 mm and a diameter of 3.5 mm. The tensioning sleeve has an outer diameter of 70 mm, a diameter of 4 mm, and a length of 160 mm.
[0009] Furthermore, the transmission wire rope is a 7*7 multi-strand stainless steel wire rope with a diameter of 3mm. A plastic-coated wire rope is arranged parallel below each transmission wire rope. The plastic-coated wire rope is a 1*19 single-strand stainless steel wire rope with a diameter of 3mm.
[0010] Furthermore, a retaining spring is embedded in the groove cavity of the driving edge aluminum profile, and the end of the inner sunshade curtain is detachably fixed by the retaining spring. Naturally hanging pendants are provided on both sides of the inner sunshade curtain.
[0011] Furthermore, adjacent drive shafts are connected by shaft joints, and both ends of the drive shaft are fixed by wire ropes. The drive wire ropes are fastened to the column by wire rope clips and tensioners. Diagonal guy lines are provided on the upper and lower layers of the drive shaft, connected by tensioners and wire rope clips.
[0012] Furthermore, the supporting and pressing lines are fixed to the crossbeams by stainless steel clips, and the effective width of the inner sunshade curtain is 4 meters, with a total width of 4.3 meters for a single curtain panel.
[0013] Furthermore, the drive motor is fixed to the crossbeam via a motor mount, and the drive shaft is fixed to the junction of the crossbeam and the column via a shaft support.
[0014] Furthermore, the reversing wheel is located at the turning position of the transmission wire rope, and all moving connection parts are coated with a grease layer.
[0015] Furthermore, the drive shaft is a galvanized steel pipe; the spacing between the curtain support line and the curtain pressing line is 0.5 meters and 1 meter, respectively.
[0016] The beneficial effects of this utility model are as follows: By optimizing and improving the design of the wire rope transmission structure, the transmission resistance is greatly reduced, and the width of the curtain stacking is compressed to less than 0.3 meters, effectively reducing the shading area; the coordinated cooperation between the tension sleeve spacing and the arrangement of the hanging wheel improves the transmission stability and synchronization accuracy; and the weather-resistant design of the galvanized steel pipe and the plastic-coated steel wire rope reduces the overall maintenance cost and extends the service life. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a partial exploded view of a wire rope transmission internal sunshade system according to an embodiment of the present utility model;
[0019] Figure 2 This is a top view of the overall structure of a wire rope driven internal sunshade system according to an embodiment of the present utility model;
[0020] Figure 3 This is a front view of the overall structure of a wire rope driven internal sunshade system according to an embodiment of the present utility model;
[0021] Figure 4 This is a steel wire rope driven internal sunshade system according to an embodiment of the present utility model. Figure 3 A magnified view of a section at point D;
[0022] Figure 5 This is a steel wire rope driven internal sunshade system according to an embodiment of the present utility model. Figure 4 A partial view of line AA in the middle;
[0023] In the diagram: 1. Drive shaft; 2. Drive motor; 3. Sprocket coupling; 4. Tensioner sleeve; 5. Shaft joint; 6. Drive wire rope; 7. Suspension reel; 8. Reversing wheel; 9. Drive side aluminum profile; 10. Bolt; 11. Aluminum drive clip; 12. Snap ring; 13. Inner sunshade curtain; 14. Curtain pressing line; 15. Curtain supporting line; 16. Shaft support; 17. Straight tie line; 18. Motor base; 19. Crossbeam. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.
[0025] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.
[0026] like Figure 1-5 As shown in the embodiment of this utility model, a steel wire rope driven internal shading system includes a drive shaft 1, a drive motor 2, a drive steel wire rope 6, and a drive side aluminum profile 9. The drive shaft 1 is coaxially connected to the output shaft of the drive motor 2 through a sprocket coupling 3 and extends longitudinally along the greenhouse. Several tension sleeves 4 are fixed at intervals on the drive shaft 1, with two tension sleeves 4 symmetrically arranged at each installation point. A set of drive steel wire ropes 6 is arranged at intervals of 3.2-4 meters. The middle and both ends of the drive steel wire ropes 6 are respectively provided with hanging pulleys 7 and reversing pulleys 8. The hanging pulleys 7 are installed at intervals of 8 meters below the drive steel wire ropes 6 under the composite beam. The drive side aluminum profile 9 is fixed to the end of the internal shading curtain 13 by a retaining spring 12, and positioning clips are provided at the intersections with the curtain support line 15 and the curtain pressing line 14. The curtain support line 15 and the curtain pressing line 14 are respectively fixed to the upper and lower sides of the crossbeam 19.
[0027] According to an embodiment of the present invention, in a specific embodiment of a wire rope driven internal sunshade system, the speed of the drive motor 2 is 5.2 rpm, the power is 0.75 kW, and the torque is 800 Nm. The drive shaft 1 is made of galvanized steel pipe with an outer diameter of 60 mm and a diameter of 3.5 mm. The specifications of the tensioning sleeve 4 are an outer diameter of 70 mm, a diameter of 4 mm, and a length of 160 mm.
[0028] According to an embodiment of the present invention, in a specific embodiment of a wire rope driven internal sunshade system, the transmission wire rope 6 is a 7*7 multi-strand stainless steel wire rope with a diameter of 3mm. A plastic-coated wire rope is arranged parallel below each transmission wire rope 6. The plastic-coated wire rope is a 1*19 single-strand stainless steel wire rope with a diameter of 3mm.
[0029] According to an embodiment of the present invention, in a specific embodiment of a wire rope driven internal sunshade system, a retaining spring 12 is embedded in the groove cavity of the driving side aluminum profile 9, the end of the internal sunshade curtain 13 is detachably fixed by the retaining spring 12, and the internal sunshade curtain 13 is provided with naturally hanging pendants on both sides.
[0030] According to an embodiment of the present invention, in a specific embodiment, adjacent drive shafts 1 are connected by shaft joints 5, both ends of the drive shaft 1 are fixed by wire ropes, the drive wire rope 6 is fastened to the column by wire rope clips and tensioners, and inclined guy wires 17 are provided on the upper and lower layers of the drive shaft 1 by tensioners and wire rope clips.
[0031] According to an embodiment of the present invention, in a specific embodiment of a wire rope driven internal sunshade system, the supporting line 15 and the pressing line 14 are fixed to the crossbeam 19 by stainless steel clips, the effective width of the internal sunshade curtain 13 is 4 meters, and the total width of a single curtain is 4.3 meters.
[0032] According to an embodiment of the present invention, in a specific embodiment of a wire rope driven internal sunshade system, the drive motor 2 is fixed to the crossbeam 19 by a motor base 18, and the drive shaft 1 is fixed to the junction of the crossbeam and the column by a shaft support 16.
[0033] According to an embodiment of the present invention, in a specific embodiment of a wire rope driven internal sunshade system, the reversing wheel 8 is located at the turning position of the transmission wire rope 6, and all movable connection parts are coated with a grease layer.
[0034] According to an embodiment of the present invention, in a specific embodiment of a wire rope driven internal sunshade system, the drive shaft 1 is a galvanized steel pipe; the spacing between the curtain support line 15 and the curtain pressing line 14 is 0.5 meters and 1 meter, respectively.
[0035] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.
[0036] In practical use, the steel wire rope driven internal sunshade system described in this utility model adopts a newly designed steel wire rope drive system, which greatly reduces transmission resistance, makes the structure lightweight, and results in a very small overall cross-sectional area of the transmission system, thus minimizing light shading. Due to the low transmission resistance, the width of the retracted curtain is generally 0.2-0.3 meters, significantly reducing the light-shading area. The key technical points of this utility model's specific implementation are as follows:
[0037] 1: The drive shaft 1 is connected to the drive motor 2 through a sprocket-type coupling 3, and after being connected to the tension sleeve 4 installed on the drive shaft 1, it extends in the north-south direction. The drive wire rope is set at intervals of 3.2-4 meters; the drive shaft 1 is a galvanized drive shaft.
[0038] 2: The parameters of the drive motor 2 are: 5.2rpm, 0.75kw, 380v, torque 800Nm. The drive shaft 1 adopts a ∅60*3.5 round tube. The specifications of the tensioning sleeve 4 are ∅70*4*160. The tensioning sleeve 4 is fixed on the drive shaft 1 with a spacing of 3.2-4 meters, corresponding to the drive wire rope 6. Two tensioning sleeves 4 are installed at each point, one pulling and one tightening. The overall transmission system has strong power and high transmission efficiency.
[0039] 3: The transmission wire rope 6 is made of 7*7 multi-strand 3mm diameter stainless steel wire rope, spaced 3.2-4 meters apart. Each transmission wire rope 6 is fitted with a 1*19 single-strand 3mm diameter plastic-coated steel wire rope at the bottom, which is strong and not easy to break.
[0040] 4: The suspension wheel 7 is installed at the transmission steel wire rope 6 below the composite beam. A suspension wheel 7 is installed at an interval of 8 meters for each transmission steel wire rope 6 to prevent the transmission steel wire rope 6 from sagging.
[0041] 5: The intersection of the driving edge aluminum profile 9 with the curtain pressing line 14 and the curtain supporting line 15 is limited by positioning clips to prevent the inner sunshade curtain 13 from crossing the driving edge aluminum profile 9.
[0042] 6. The control area of each transmission system should be controlled within 3000 square meters. Areas exceeding 3000 square meters require additional partitioning. The lateral length should generally not exceed 80 meters, and the longitudinal length should generally not exceed 60 meters; if these limits are exceeded, additional partitioning is recommended.
[0043] 7: To prevent excessive tension at drive shaft 1, a steel wire rope is required for connection. The drive steel wire rope 6 is fixed to the column with a steel wire rope clamp and tightened with a wire tensioner.
[0044] 8: The drive motor 2 is fixed on the crossbeam 19 by the motor base 18, and the shaft support is fixed on the crossbeam and the column;
[0045] 9: The inner sunshade curtain 13, the curtain pressing line 14, and the curtain supporting line 15 are fixed to the crossbeam with 50 stainless steel clips at intervals of 0.5 meters. The other end of the inner sunshade curtain 13 is fixed to the groove of the drive side aluminum profile 9 with a spring clip 12. Two drive sides;
[0046] 10: The curtain is decorated with pendants hanging down naturally on both sides, which is beautiful and elegant.
[0047] In summary, by utilizing the above-mentioned technical solution of this utility model and through the optimized and improved design of the wire rope transmission structure, the transmission resistance is greatly reduced, the width of the curtain retracted and stacked is compressed to less than 0.3 meters, and the light-blocking area is effectively reduced; the coordinated cooperation between the tension sleeve spacing and the arrangement of the hanging wheel improves the transmission stability and synchronization accuracy; and the weather-resistant design of the galvanized steel pipe and the plastic-coated steel wire rope reduces the overall maintenance cost and extends the service life.
[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wire rope driven internal sunshade system, characterized in that, The system includes a drive shaft (1), a drive motor (2), a drive wire rope (6), and a drive side aluminum profile (9). The drive shaft (1) is coaxially connected to the output shaft of the drive motor (2) through a sprocket coupling (3) and extends longitudinally along the greenhouse. Several tension sleeves (4) are fixed at intervals on the drive shaft (1), and two tension sleeves (4) are symmetrically arranged at each installation point. A set of drive wire ropes (6) is arranged at intervals of 3.2-4 meters. The middle and both ends of the drive wire ropes (6) are respectively provided with hanging wheels (7) and reversing wheels (8). The hanging wheels (7) are installed at intervals of 8 meters below the drive wire ropes (6) of the composite beam. The drive side aluminum profile (9) is fixed to the end of the inner shading curtain (13) by a snap ring (12) and a positioning clip is set at the intersection with the curtain support line (15) and the curtain pressure line (14). The curtain support line (15) and the curtain pressure line (14) are respectively fixed on the upper and lower sides of the crossbeam (19).
2. The wire rope drive internal sunshade system according to claim 1, characterized in that, The drive motor (2) has a speed of 5.2 rpm, a power of 0.75 kW, and a torque of 800 Nm. The drive shaft (1) is made of galvanized steel pipe with an outer diameter of 60 mm and a diameter of 3.5 mm. The tension sleeve (4) has an outer diameter of 70 mm, a diameter of 4 mm, and a length of 160 mm.
3. The wire rope drive internal sunshade system according to claim 1, characterized in that, The transmission wire rope (6) is a 7*7 multi-strand stainless steel wire rope with a diameter of 3mm. A plastic-coated wire rope is arranged parallel below each transmission wire rope (6). The plastic-coated wire rope is a 1*19 single-strand stainless steel wire rope with a diameter of 3mm.
4. The wire rope drive internal sunshade system according to claim 1, characterized in that, The drive side aluminum profile (9) has a retaining spring (12) embedded in its groove. The end of the inner sunshade curtain (13) is detachably fixed by the retaining spring (12). The inner sunshade curtain (13) has naturally hanging pendants on both sides.
5. The wire rope drive internal sunshade system according to claim 1, characterized in that, The adjacent drive shafts (1) are connected by a shaft joint (5). The two ends of the drive shaft (1) are fixed by steel wire rope. The drive steel wire rope (6) is fastened to the column by steel wire rope clamp and tensioner. The upper and lower layers of the drive shaft (1) are provided with inclined guy wires (17) connected by tensioner and steel wire rope clamp.
6. The wire rope drive internal sunshade system according to claim 1, characterized in that, The supporting line (15) and the pressing line (14) are fixed to the crossbeam (19) by stainless steel clips. The effective width of the inner sunshade curtain (13) is 4 meters, and the total width of a single curtain is 4.3 meters.
7. The wire rope drive internal sunshade system according to claim 1, characterized in that, The drive motor (2) is fixed on the crossbeam (19) by the motor base (18), and the drive shaft (1) is fixed at the junction of the crossbeam and the column by the shaft support (16).
8. The wire rope drive internal sunshade system according to claim 1, characterized in that, The reversing wheel (8) is located at the turning position of the transmission wire rope (6), and all moving connection parts are coated with a grease layer.
9. The wire rope transmission internal sunshade system according to claim 1, characterized in that, The drive shaft (1) is a galvanized steel pipe; the spacing between the curtain support line (15) and the curtain pressing line (14) is 0.5 meters and 1 meter, respectively.