Lifting appliance for lifting guide plate of cable-stayed bridge
By designing a lifting device for the guide vane of the cable-stayed bridge, and utilizing adjustment and clamping mechanisms, the problem of uneven force distribution on the guide vane during the lifting process was solved, achieving stable lifting of the guide vane and improving safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY JIUJIANG BRIDGE ENG
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-10
AI Technical Summary
Existing methods for hoisting deflectors are prone to causing the deflectors to twist or bend due to uneven stress during hoisting, and the hoisting safety and efficiency are relatively low.
Design a lifting device for guide vanes of cable-stayed bridges, including a vertical rod, an upper horizontal rod, and a lower horizontal rod, forming a C-shaped cavity. Through the cooperation of an adjustment mechanism and a clamping mechanism, the height of the C-shaped cavity is adjusted and the guide vane is clamped to ensure that it is subjected to uniform force during the lifting process.
It effectively prevents the deflector from twisting or bending during hoisting, improves the safety and efficiency of hoisting operations, enhances the versatility and adaptability of the lifting equipment, and simplifies the operation process.
Smart Images
Figure CN224105391U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hoist technology field, concretely, relate to a cable-stayed bridge guide vane hoist. BACKGROUND
[0002] At present, the large-span cable-stayed bridge is generally installed with the guide vane, and the guide vane is a device used in bridge construction, which mainly adjusts the angle of the guide vane to guide the airflow on the bridge deck to the bridge side or below the bridge, reduces the impact force of the wind, and makes the bridge more stable.
[0003] The existing guide vane hoisting mode is usually to connect the guide vane to the bridge girder and then hoist the whole. This mode requires that the guide vane must bear the weight of the whole structure and the dynamic load generated during hoisting in the hoisting process. If the hoisting point is not properly selected, the hoisting rope tension is uneven, or the hoisting speed is too fast, the guide vane will be subjected to uneven force, which will cause the main structure of the guide vane to be twisted or bent and deformed. UTILITY MODEL CONTENTS
[0004] The utility model solves the problem: how to effectively prevent the guide vane from being twisted or bent and deformed due to uneven force in the hoisting process, and improve the safety and efficiency of hoisting operation.
[0005] To solve the above problems, the utility model provides a cable-stayed bridge guide vane hoist, which comprises at least one hoist body, the hoist body comprises a vertical rod, an upper horizontal rod and a lower horizontal rod, the lower horizontal rod is connected to one side of the bottom of the vertical rod, the upper horizontal rod is slidingly connected to one side of the top of the vertical rod, the upper horizontal rod and the lower horizontal rod are located on the same side of the vertical rod, the vertical rod, the upper horizontal rod and the lower horizontal rod enclose a C-shaped space that wraps the guide vane, an adjusting mechanism is arranged between the upper horizontal rod and the vertical rod, the adjusting mechanism is used to drive the upper horizontal rod to move back and forth along the vertical rod in the direction of approaching or moving away from the lower horizontal rod, a clamping mechanism is arranged on the lower horizontal rod, the clamping mechanism comprises at least one clamping block, the clamping block can move back and forth along the lower horizontal rod in the direction of approaching or moving away from the vertical rod, and the clamping block is used to clamp the guide vane.
[0006] Optionally, the bottom of the clamping block is slidingly connected to the lower horizontal rod, the top of the clamping block extends to the side close to the upper horizontal rod, the top of the clamping block is provided with a concave clamping groove, the clamping groove penetrates through the clamping block in the horizontal direction, and the clamping groove is used to clamp the bottom of the guide vane.
[0007] Optionally, the bottom of the clamping block is provided with a T-shaped sliding groove, the upper end of the lower horizontal rod is provided with a sliding rail matched with the shape of the sliding groove, the sliding rail extends along the length direction of the lower horizontal rod, and the sliding groove and the sliding rail are slidingly connected.
[0008] Optionally, the clamping mechanism further comprises two ball screws with opposite screw directions, a transmission shaft and a motor driving assembly, the motor driving assembly is connected to the lower cross bar and located between the two ball screws, the output end of the motor driving assembly is rotationally connected to the transmission shaft, the transmission shaft is coaxially fixedly connected to the screw rods of the two ball screws through couplings at two ends thereof, and the nuts of the two ball screws are connected to the clamping blocks.
[0009] Optionally, the motor driving assembly comprises a motor, a driving pulley, a driven pulley and a synchronous belt, the motor is mounted on the lower cross bar, the output shaft of the motor is coaxially connected to the driving pulley, the driven pulley is coaxially connected to the transmission shaft, and the driving pulley and the driven pulley are drivingly connected through the synchronous belt.
[0010] Optionally, the lower cross bar is provided with a stop block at an end away from the vertical rod.
[0011] Optionally, the adjusting mechanism comprises a hydraulic cylinder, the cylinder body of the hydraulic cylinder is connected to the vertical rod and located at a side close to the lower cross bar, and the piston rod of the hydraulic cylinder is connected to the upper cross bar at one end.
[0012] Optionally, the vertical rod is provided with an avoiding groove at a side facing the hydraulic cylinder, and the cylinder body and the piston rod of the hydraulic cylinder are arranged in the avoiding groove.
[0013] Optionally, the upper end of the upper cross bar is provided with at least one lifting lug.
[0014] Optionally, the vertical rod, the upper cross bar and the lower cross bar are all provided with a plurality of reinforcing ribs.
[0015] The lifting device body comprises a vertical rod, an upper cross bar and a lower cross bar, forms a C-shaped cavity and is used for wrapping the flow guide plate. The adjusting mechanism is arranged between the upper cross bar and the vertical rod and can drive the upper cross bar to move up and down along the vertical rod, thereby adjusting the height of the C-shaped cavity to adapt to flow guide plates with different heights and sizes and enable the flow guide plates to be tightly wrapped. The clamping mechanism is arranged on the lower cross bar, the clamping blocks can move along the lower cross bar and are used for clamping the flow guide plates to ensure the stability of the flow guide plates during lifting. Through cooperation of the adjusting mechanism and the clamping mechanism, the flow guide plates are firmly fixed in the C-shaped cavity, the flow guide plates are uniformly stressed during overall lifting of the lifting device and are prevented from being twisted or bent.
[0016] The lifting sling of the utility model cooperates the adjusting mechanism and the clamping mechanism, clamps the flow guide plate to lift, so that the flow guide plate does not need to bear the weight of the whole structure and the dynamic load generated in the lifting process, thereby avoiding the distortion or bending deformation of the flow guide plate due to uneven stress, ensuring that the flow guide plate is evenly stressed in the lifting process, thereby preventing the distortion or bending deformation of the flow guide plate main structure, providing the safety of high lifting operation. The adjusting mechanism can adjust the height of the C-shaped cavity, and the clamping mechanism can adjust the position of the clamping block, so that the lifting sling can adapt to flow guide plates of different sizes and shapes, improving the versatility and adaptability of the lifting sling. Moreover, the structure design of the lifting sling is simple, the adjusting and clamping operations are convenient, the lifting efficiency is improved, and the manual operation difficulty and error probability are reduced. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the schematic diagram of the overall structure of an embodiment of the utility model;
[0018] Figure 2 It is the schematic diagram of the use state of an embodiment of the utility model;
[0019] Figure 3 It is the schematic diagram of the structure of the clamping block of an embodiment of the utility model.
[0020] BRIEF DESCRIPTION OF DRAWINGS:
[0021] 1, sling body; 11, vertical rod; 12, upper cross bar; 121, lifting lug; 13, lower cross bar; 131, sliding block; 132, stop block; 14, adjusting mechanism; 141, cylinder body; 142, piston rod; 15, clamping mechanism; 151, clamping block; 1511, clamping groove; 1512, sliding groove; 152, ball screw; 153, motor driving assembly; 16, reinforcing rib; 2, flow guide plate. DETAILED DESCRIPTION
[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings. Although some embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be realized in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for illustrative purposes, and are not used to limit the protection scope of the utility model.
[0023] The Z axis in the drawings represents a vertical direction, that is, an up-down position, and a positive direction of the Z axis represents an upward direction, and a negative direction of the Z axis represents a downward direction; the X axis in the drawings represents a front-rear direction, and a positive direction of the X axis represents a front side, and a negative direction of the X axis represents a rear side; and the Y axis in the drawings represents a horizontal direction, and is designated as a left-right position, and a positive direction of the Y axis represents a left side, and a negative direction of the Y axis represents a right side. It should be noted that the meanings of the aforementioned Z axis, Y axis and X axis are only for facilitating the description of the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements indicated having to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.
[0024] The term "comprising" and variations thereof as used herein are open-ended, that is, "comprising but not limited to"; the term "based on" is, at least based on part on; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Related definitions of other terms will be given in the description below. It should be noted that the "first", "second", and the like concepts mentioned in the utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0025] It should be noted that the modification of "one" or "multiple" mentioned in the utility model is illustrative rather than limiting, and those skilled in the art should understand that, unless otherwise explicitly indicated in the context, it should be understood as "one or more".
[0026] As shown in Figure 1 , Figure 2 The utility model discloses a cable-stayed bridge flow guide plate hoist, including at least one hoist body 1, hoist body 1 includes vertical pole 11, upper cross bar 12 and lower cross bar 13, and lower cross bar 13 is connected on the bottom side of vertical pole 11, and upper cross bar 12 is slidably connected on the top side of vertical pole 11, and upper cross bar 12 and lower cross bar 13 are located on the same side of vertical pole 11, and vertical pole 11, upper cross bar 12 and lower cross bar 13 enclose the C-shaped space of wrapping flow guide plate 2, and adjusting mechanism 14 is arranged between upper cross bar 12 and vertical pole 11, adjusting mechanism 14 is used for driving upper cross bar 12 to move back and forth along vertical pole 11 to the direction of approaching or moving away from lower cross bar 13, and clamping mechanism 15 is arranged on lower cross bar 13, and clamping mechanism 15 includes at least one clamping block 151, and clamping block 151 can move back and forth along lower cross bar 13 to the direction of approaching or moving away from vertical pole 11, and clamping block 151 is used for clamping flow guide plate 2.
[0027] Specifically, the lifting appliance body 1 is composed of a vertical rod 11, an upper cross rod 12 and a lower cross rod 13, forming a C-shaped cavity for wrapping the guide plate 2. When the guide plate 2 is placed in the C-shaped cavity of the lifting appliance body 1, one side of the guide plate 2 abuts against the inner side of the vertical rod 11, and both ends of the guide plate 2 in the vertical direction (Z-axis direction) are located between the upper cross rod 12 and the lower cross rod 13. In the present application, the upper cross rod 12 is driven by the adjusting mechanism 14 to slide up and down along the vertical rod 11, so as to adjust the height of the C-shaped cavity in the vertical direction, so that the lifting appliance can adapt to guide plates 2 of different heights. In the present application, the position of the clamping block 151 is adjusted so that the clamping block 151 is located in the middle of the guide plate 2 in the width direction (Y-axis direction), so as to better lift and support the guide plate 2, and the cooperation of the clamping block 151 and the upper cross rod 12 can better clamp the guide plate 2 in the vertical direction. And in the process of use, two lifting appliance bodies 1 are usually used, which are arranged at intervals along the length extension direction (X-axis direction) of the guide plate 2, to provide stable support and clamping force for the guide plate 2. According to the length of the guide plate 2, three, four or more lifting appliance bodies 1 can also be arranged.
[0028] In the present embodiment, the cooperation of the C-shaped cavity and the clamping mechanism 15 firmly fixes the guide plate 2 during hoisting, uniformly distributes the hoisting force, reduces the risk of distortion or bending deformation of the guide plate 2 caused by improper selection of hoisting points, uneven tension of hoisting ropes or too fast hoisting speed, and reduces the risk of structural damage. During hoisting, the lifting appliance can closely fit around the guide plate 2 to provide effective protection against damage or scratches. The adjusting mechanism 14 and the clamping mechanism 15 enable the lifting appliance to adapt to guide plates 2 of different sizes and shapes, improving its versatility and practicality. The movement of the clamping block 151 and the operation of the adjusting mechanism 14 are simple, and the on-site operator can quickly adjust and fix the guide plate 2, improving the hoisting efficiency.
[0029] Optionally, as shown in Figure 1 、 Figure 3 , the bottom of the clamping block 151 is slidingly connected to the lower cross rod 13, the top of the clamping block 151 extends towards the side close to the upper cross rod 12, and the top of the clamping block 151 is provided with a downwardly recessed clamping groove 1511. The clamping groove 1511 penetrates the clamping block 151 in the horizontal direction and is used to clamp the bottom of the guide plate 2.
[0030] Specifically, the bottom of the clamping block 151 is slidingly connected to the lower cross bar 13, so that it can move horizontally along the lower cross bar 13, thereby adjusting the position of the clamping block 151 to adapt to the different widths of the guide vane 2, so that it can be ensured that the clamping block 151 is located in the middle of the width direction (Y-axis direction) of the guide vane 2. The top of the clamping block 151 extends towards the side close to the upper cross bar 12, forming a portion in contact with the bottom of the guide vane 2. The top of the clamping block 151 is provided with a downwardly extending clamping groove 1511, which penetrates the clamping block 151 along the Y-axis direction, facilitating the bottom of the guide vane 2 to be placed into the clamping groove 1511, thereby firmly clamping the guide vane 2 to prevent it from shaking or falling off during hoisting. The width (front-to-back direction) and depth (vertical direction) of the clamping groove 1511 can be adjusted according to the size of the guide vane 2 to adapt to guide vanes 2 of different sizes or shapes, improving its versatility and practicality.
[0031] In this optional embodiment, when the guide vane 2 is placed in the C-shaped cavity, the clamping block 151 moves along the lower cross bar 13 so that the clamping groove 1511 is aligned with the bottom of the guide vane 2 at the middle position in the width direction (Y-axis direction) and clamped. The position of the upper cross bar 12 is adjusted by the adjusting mechanism 14, so that the guide vane 2 is tightly wrapped, and at the same time the clamping groove 1511 of the clamping block 151 further fixes the bottom of the guide vane 2, ensuring its stability during hoisting. If the position of the guide vane 2 needs to be fine-tuned during hoisting, the clamping block 151 can slide along the lower cross bar 13 to re-clamp the bottom of the guide vane 2, ensuring that it is always in a stable state. The clamping groove 1511 of this embodiment firmly clamps the bottom of the guide vane 2, further improving the stability of the guide vane 2 during hoisting, preventing it from sliding or falling off due to external forces. And the clamping block 151 is located in the middle of the width direction (horizontal direction) of the guide vane 2, ensuring that the clamping block 151 provides uniform support and lifting force for the guide vane 2, making the force on the bottom of the guide vane 2 more uniform. The sliding connection of the clamping block 151 and the design of the clamping groove 1511 enable it to adapt to guide vanes 2 of different widths or shapes, improving the versatility and applicability of the lifting appliance.
[0032] Alternatively, as shown in Figure 1 、 Figure 3 , the bottom of the clamping block 151 is provided with a T-shaped sliding groove 1512, and the upper end of the lower cross bar 13 is provided with a sliding rail 131 matching the shape of the sliding groove 1512, which extends along the length direction of the lower cross bar 13, and the sliding groove 1512 is slidingly connected with the sliding rail 131.
[0033] Specifically, the bottom of the clamping block 151 is provided with a sliding groove 1512, and the upper end of the lower cross bar 13 is provided with a boss protruding to the front and back sides, so that the upper end of the lower cross bar 13 forms a sliding rail 131 in T-shaped cross section. The sliding groove 1512 is in sliding connection with the sliding rail 131, so that the clamping block 151 can move horizontally along the lower cross bar 13. Through the cooperation of the sliding groove 1512 and the sliding rail 131, the clamping block 151 can smoothly slide on the lower cross bar 13, and its position can be adjusted to adapt to the guide vane 2 of different widths or shapes. When the guide vane 2 is placed in the C-shaped cavity, the clamping block 151 slides along the lower cross bar 13, so that the clamping groove 1511 is aligned with the middle position of the bottom of the guide vane 2 and clamped. The connection of the sliding groove 1512 and the sliding rail 131 ensures the stability and accuracy of the clamping block 151 during movement. During hoisting, if it is necessary to fine-tune the position of the guide vane 2, the clamping block 151 can slide along the lower cross bar 13 through the cooperation of the sliding groove 1512 and the sliding block 131, re-clamp the bottom of the guide vane 2, and ensure that it is always in a stable state.
[0034] In this optional embodiment, the connection of the sliding groove 1512 and the sliding block 131 makes the clamping block 151 more stable during movement, reducing the problem of unstable fixation of the guide vane 2 caused by shaking or deviation of the clamping block 151. The cooperation of the sliding groove 1512 and the sliding block 131 enables the clamping block 151 to accurately adjust the position, ensuring that the alignment of the clamping groove 1511 and the bottom of the guide vane 2 is more accurate, and improving the fixing effect. The sliding groove 1512 and the sliding block 131 make the movement of the clamping block 151 more smooth, which is convenient for the on-site operator to quickly adjust and fix the guide vane 2, and improves the hoisting efficiency.
[0035] Optionally, as shown in Figure 1 The clamping mechanism 15 further includes two ball screws 152 with opposite screw directions, a transmission shaft, and a motor driving assembly 153. The motor driving assembly 153 is connected to the lower cross bar 13 and located between the two ball screws 152. The output end of the motor driving assembly 153 is rotationally connected to the transmission shaft, and the two ends of the transmission shaft are coaxially fixedly connected to the screw rods of the two ball screws 152 through couplings. The nuts of the two ball screws 152 are connected to the clamping blocks 151.
[0036] Specifically, the motor driving assembly 153 is installed on the lower cross bar 13 between the two ball screws 152. When the motor is started, its output shaft starts to rotate and transmits the rotating force to the two ball screws 152 through the transmission shaft. The two ends of the transmission shaft are fixedly connected with the screw rods of the two ball screws 152 through the shaft couplings, respectively, to ensure that when the transmission shaft rotates, the two ball screws 152 can rotate synchronously in opposite screw directions. Since the screw directions of the ball screws 152 are opposite, when they rotate synchronously, the two nuts (each connected to a clamping block 151) will move in opposite directions along the length of the ball screws 152, so that the two clamping blocks 151 can move simultaneously towards the middle or outward.
[0037] In this optional embodiment, the two clamping blocks 151 are synchronously controlled by the motor driving assembly 153 to move towards the middle or outward, thereby adapting to the guide vanes 2 of different width sizes. In this embodiment, two clamping blocks 151 are provided, which can support the bottom of the guide vane 2 in the width direction, so that the force on the bottom of the guide vane 2 is more uniform, and the clamping force on the guide vane 2 is more stable. Moreover, the ball screw transmission has the characteristics of high precision and high efficiency, and can realize the precise movement of the clamping block 151, so that the control of the support and clamping position of the guide vane 2 is more accurate.
[0038] Optionally, the motor driving assembly 153 includes a motor, a driving pulley, a driven pulley, and a synchronous belt. The motor is installed on the lower cross bar 13, the output shaft of the motor is coaxially connected with the driving pulley, and the driven pulley is coaxially connected with the transmission shaft. The driving pulley and the driven pulley are drivingly connected through the synchronous belt.
[0039] Specifically, when the motor is started, the output shaft of the motor drives the driving pulley to rotate, the driving pulley transmits power to the driven pulley through the synchronous belt, and the driven pulley drives the transmission shaft to rotate. The two ends of the transmission shaft are connected with the screw rods of the two ball screws 152 through the shaft couplings. The rotation of the transmission shaft drives the screw rods of the two ball screws 152 to rotate synchronously. Since the screw directions of the two ball screws 152 are opposite, the nuts will move in opposite directions along the screw rods. The nuts of the two ball screws 152 are respectively connected with the clamping blocks 151. When the nuts move, the clamping blocks 151 will move synchronously towards or away from the vertical rods 11, thereby adjusting the position of the clamping blocks 151 on the lower cross bar 13.
[0040] In this optional embodiment, the synchronous belt transmission has the characteristics of high transmission efficiency and low noise, which can ensure the stability and reliability of power transmission, thereby improving the transmission precision and stability of the entire clamping mechanism 15. Through the synchronous belt transmission, the motor can be installed at a suitable position, avoiding complex gear transmission structures, so that the overall structure is more compact and light.
[0041] Optionally, asFigure 1 As shown, the end of the lower cross bar 13 away from the vertical bar 11 is provided with a stopper 132.
[0042] Specifically, the stopper 132 extends to both sides of the front and back, which can limit the moving range of the clamping block 151 on the lower cross bar 13. It ensures that the clamping block 151 will not fall off from the end of the lower cross bar 13 away from the vertical bar 11 during the work process.
[0043] In this optional embodiment, the stopper 132 provides additional restrictions for the clamping block 151, which helps to maintain its stability and accuracy during the work process, avoids the clamping block 151 from falling off from the end of the lower cross bar 13, and ensures the smooth progress of the hoisting operation.
[0044] Optionally, as shown, Figure 1 The adjusting mechanism 14 includes a hydraulic cylinder, the cylinder body 141 of the hydraulic cylinder is connected to the vertical bar 11 and located near one side of the lower cross bar 13, and the piston rod 142 of the hydraulic cylinder is connected to the upper cross bar 12 at one end.
[0045] Specifically, the piston rod 142 of the hydraulic cylinder is connected to the upper cross bar 12 at one end. Through the extension and retraction movement of the piston rod 142, the upper cross bar 12 can be driven to move up and down, realizing height adjustment and ensuring that the lower end of the upper cross bar 12 abuts against the upper end of the deflector 2. During the adjustment process, by controlling the oil inlet and outlet amount of the hydraulic system, the length of the piston rod 142 can be accurately adjusted to extend or retract, thereby realizing accurate control of the height of the upper cross bar 12.
[0046] In this optional embodiment, the height adjustment of the upper cross bar 12 can be conveniently realized through the extension and retraction of the piston rod 142 of the hydraulic cylinder, thereby adapting to different heights or different hoisting needs. The hydraulic system usually has high control accuracy and response speed, and by adjusting the parameters of the hydraulic system, the height and position of the upper cross bar 12 can be accurately controlled.
[0047] Optionally, the side of the vertical bar 11 towards the hydraulic cylinder is provided with a avoiding slot, and the cylinder body 141 and the piston rod 142 of the hydraulic cylinder are arranged in the avoiding slot.
[0048] Specifically, the avoiding slot formed on the vertical bar 11 provides a special space for the hydraulic cylinder, allowing the cylinder body 141 and the piston rod 142 of the hydraulic cylinder to be installed and work without interfering with other structural components.
[0049] In this optional embodiment, the hydraulic cylinder and the piston rod 142 are installed by setting the avoiding slot, which avoids the C-shaped cavity for the deflector 2, so that one side of the deflector 2 can completely abut against a plane on the inner side of the vertical bar 11 in the height direction, making the stress on the side edge of the deflector 2 more uniform and avoiding damage to the deflector 2 due to uneven stress.
[0050] Optionally, as shown in Figure 1 The upper end of the upper cross bar 12 is provided with at least one lifting lug 121.
[0051] Specifically, the lifting lug 121 is connected to the lifting rope, hook or other lifting equipment as a connection point. Through the lug 121, the lifting rope can be firmly fixed on the upper cross bar 12, so as to realize the lifting and movement of the entire lifting spreader or the flow guide plate 2 carried thereby. Two lifting lugs 121 are arranged at intervals along the length direction of the upper cross bar 12, so that the stress of the spreader is more uniform.
[0052] In this optional embodiment, the connection of the lifting rope and the upper cross bar 12 can be conveniently realized by setting the lifting lug 121, thereby simplifying the operation process of the lifting operation and improving the lifting efficiency.
[0053] Optionally, as shown in Figure 1 The vertical bar 11, the upper cross bar 12 and the lower cross bar 13 are each provided with a plurality of reinforcing ribs 16.
[0054] Specifically, a plurality of reinforcing ribs 16 are arranged on the vertical bar 11, the upper cross bar 12 and the lower cross bar 13 as needed. The main function of the reinforcing rib 16 is to increase the cross-sectional area and the moment of inertia of the structure, thereby improving the strength and rigidity of the structure. By setting the reinforcing rib 16, the bending, shearing and torsion deformation and other deformations generated during the lifting process can be effectively resisted, so as to ensure the stability and safety of the entire lifting spreader. The reinforcing rib 16 can also disperse the load acting on the main structure to a larger area, thereby reducing local stress concentration and prolonging the service life of the structure.
[0055] In this optional embodiment, by setting the reinforcing rib 16, the carrying capacity of the entire lifting spreader can be significantly improved, so that it can safely lift heavier flow guide plates 2 or other loads.
[0056] Although the present utility model discloses as above, the protection scope of the present utility model is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model, and these changes and modifications will all fall within the protection scope of the present utility model.
Claims
1. A cable-stayed bridge fairing hoisting hoist, characterized in that, The utility model relates to a kind of lifting appliance, including: At least one spreader body (1), the spreader body (1) includes vertical pole (11), upper crossbar (12) and lower crossbar (13), the lower crossbar (13) is connected in the bottom side of the vertical pole (11), the upper crossbar (12) is slidably connected in the top side of the vertical pole (11), the upper crossbar (12) and the lower crossbar (13) are located in the same side of the vertical pole (11), the vertical pole (11), the upper crossbar (12) and the lower crossbar (13) form C-shaped space that is wrapped around guide plate (2), adjusting mechanism (14) is provided between the upper crossbar (12) and the vertical pole (11), the adjusting mechanism (14) is used to drive the upper crossbar (12) to move back and forth along the vertical pole (11) in the direction close to or away from the lower crossbar (13), clamping mechanism (15) is provided on the lower crossbar (13), the clamping mechanism (15) includes at least one clamping block (151), the clamping block (151) can move back and forth along the lower crossbar (13) in the direction close to or away from the vertical pole (11), and the clamping block (151) is used to clamp guide plate.
2. The cable-stayed bridge fairlead hoisting tool of claim 1, wherein, The bottom of the clamping block (151) is slidably connected on the lower crossbar (13), the top of the clamping block (151) extends to the side close to the upper crossbar (12), the top of the clamping block (151) is provided with downwardly recessed clamping groove (1511), the clamping groove (1511) penetrates the clamping block (151) along the horizontal direction, and the clamping groove (1511) is used for clamping the bottom of the guide plate.
3. The cable-stayed bridge fairlead hoisting tool of claim 2, wherein, The bottom of the clamping block (151) is provided with T-shaped sliding groove (1512), the upper end of the lower crossbar (13) is provided with sliding rail (131) matched with the shape of the sliding groove (1512), the sliding rail (131) extends along the length direction of the lower crossbar (13), and the sliding groove (1512) is slidably connected with the sliding rail (131).
4. The cable-stayed bridge fairlead hoisting harness according to claim 3, characterized in that, The clamping mechanism (15) further includes two ball screws (152) with opposite screw threads, transmission shaft and motor driving assembly (153), the motor driving assembly (153) is connected on the lower crossbar (13) and located between the two ball screws (152), the output end of the motor driving assembly (153) is rotatably connected with the transmission shaft, the transmission shaft is coaxially fixedly connected with the screw rods of the two ball screws (152) through couplings at both ends, and the nuts of the two ball screws (152) are connected with the clamping block (151).
5. The cable-stayed bridge fairlead hoist of claim 4, wherein, The motor driving assembly (153) includes motor, driving pulley, driven pulley and synchronous belt, the motor is installed on the lower crossbar (13), the output shaft of the motor is coaxially connected with the driving pulley, the driven pulley is coaxially connected with the transmission shaft, and the driving pulley and the driven pulley are drivingly connected through the synchronous belt.
6. The cable-stayed bridge fairlead hoist of claim 4, wherein, The end of the lower crossbar (13) away from the vertical pole (11) is provided with a stop block (132).
7. The cable-stayed bridge fairlead hoist of claim 1, wherein, The adjusting mechanism (14) comprises a hydraulic cylinder, a cylinder body (141) of the hydraulic cylinder is connected to the vertical rod (11) and located at a side close to the lower cross rod (13), and a piston rod (142) of the hydraulic cylinder is connected to the upper cross rod (12) at one end.
8. The cable-stayed bridge fairlead hoist of claim 7, wherein, A avoiding groove is arranged on a side of the vertical rod (11) close to the hydraulic cylinder, and the cylinder body (141) and the piston rod (142) of the hydraulic cylinder are arranged in the avoiding groove.
9. The cable-stayed bridge fairlead hoist of claim 1, wherein, At least one lifting lug (121) is arranged on an upper end of the upper cross rod (12).
10. The hanger as claimed in any one of claims 1 to 9, wherein the hanger is characterized by: A plurality of reinforcing ribs (16) are arranged on the vertical rod (11), the upper cross rod (12) and the lower cross rod (13).