Anti-overturning device for high-speed rail hanging basket construction
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]本实用新型主要是针对现有高铁挂篮施工过程中存在的倾覆风险高、缺乏有效保护措施的问题，提供一种高铁挂篮施工防倾覆装置，旨在通过双重自锁保护、实时监测与自动报警相结合的方式，实现对挂篮行走及浇筑作业过程的全方位安全防护，保障施工安全与设备稳定
（1）本实用新型设置第一自锁模块与第二自锁模块，形成双重保险机制。第一自锁模块基于离心力原理，在绕线筒转速异常、对应挂篮后端快速翘起时自动锁止；第二自锁模块通过红外线检测仪实时监测挂篮姿态，当翘起高度超出预设阈值时，通过第二锁紧组件主动锁止绕线筒；双重保护机制可应对不同工况下的倾覆风险，有效避免单一保护失效导致的安全事故，显著提升挂篮施工的安全性；
Smart Images
Figure CN224620457U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hanging basket construction technology, and in particular to an anti-tipping device for high-speed railway hanging basket construction. Background Technology
[0002] In high-speed railway bridge construction projects, cantilever casting technology is widely used in hanging basket construction scenarios because it can adapt to complex terrain and the needs of building long-span bridges. Currently, the weight of a single side of the cantilever casting hanging basket used in the engineering field generally reaches more than 75 tons, and some large hanging baskets even exceed 100 tons. The safety management of such heavy equipment during construction is crucial. However, the existing hanging basket construction technology system has a significant lack of anti-tipping measures during the hanging basket's movement phase. When the hanging basket completes the work on the current construction section and needs to move to the next section, the rear anchor structure of the hanging basket must be removed first, leaving the hanging basket in a movable state supported only by the rails. Simultaneously, during concrete pouring, the hanging basket rails will continuously withstand impacts. During this process, safety risks increase significantly due to various factors: Firstly, the rail connecting bolts are exposed to the outdoor environment for extended periods, making them prone to corrosion and aging; some bolts, due to manufacturing defects or installation deviations, have insufficient load-bearing capacity. Secondly, high-speed railway bridge construction is mostly carried out in open-air environments; if strong winds occur, the hanging basket will be subjected to lateral wind forces during movement, further exacerbating the risk of overturning. Because traditional hanging basket walking systems do not have any anti-tipping protection mechanisms, when the above-mentioned risk factors combine to cause an emergency, such as a sudden breakage of the screws causing the rear end of the hanging basket to tilt up instantly, there is a lack of effective emergency braking and traction measures, which can easily lead to a major safety accident of hanging basket tipping over. This will not only cause expensive equipment damage, but may also lead to casualties among construction workers and cause irreparable losses to the project. Furthermore, during long-term use, the hanging basket is susceptible to fatigue damage due to natural environmental factors such as wind, sun, and rain, coupled with continuous friction between the track and the basket's wheel hubs during movement. This damage can lead to cracks and wear on the track and wheel hub surfaces, and wear marks and fatigue cracks can gradually appear on the steel components due to vibrations during construction. This damage not only shortens the overall service life of the hanging basket but also reduces its safety performance and increases the potential risk of accidents. Currently, the common approach to addressing this damage is to replace damaged parts or repair them on-site. However, this not only affects construction progress but also makes it difficult to guarantee that the repaired parts perform exactly the same as the original parts, further impacting the safety and stability of the hanging basket construction. Utility Model Content
[0003] This utility model addresses the problems of high overturning risk and lack of effective protection measures in the existing high-speed railway hanging basket construction process. It provides an anti-overturning device for high-speed railway hanging basket construction, which aims to achieve all-round safety protection for the hanging basket movement and pouring operation process through a combination of double self-locking protection, real-time monitoring and automatic alarm, so as to ensure construction safety and equipment stability.
[0004] The objective of this utility model is mainly achieved through the following solution: A high-speed railway hanging basket construction anti-tipping device is provided. The hanging basket is provided with two hanging baskets, one on the left and one on the right, and two tracks are provided on the box girder along its length. The hanging basket can move along the tracks and is fixed to the box girder by anchor rods. The anti-tipping device is provided in two sets, which correspond to the two hanging baskets respectively. Each set includes a base installed on the box girder. The upper surface of the base is rotatably connected to a winding drum through two bearing seats. A steel wire rope is wound on the winding drum. The free end of the steel wire rope is connected to the rear anchor beam of the hanging basket. The upper surface of the base is equipped with a drive assembly that drives the winding drum to rotate, and the end of the winding drum away from the drive assembly passes through the bearing seat and is equipped with a brake box, and the brake box is equipped with a first self-locking module. The side wall of the winding drum is also provided with two baffles on the left and right, and the wire rope is wound between the two baffles. The device also includes a second self-locking module, which includes an infrared detector installed on the hanging basket and a second locking component installed on the base corresponding to the baffle. The infrared detector is used to measure the distance between the installation position and the upper surface of the box girder. The device also includes a controller and an alarm.
[0005] Preferably, the free end of the wire rope is connected to a U-shaped buckle, and a lifting ring is installed at the rear end of the rear anchor beam of the hanging basket. The wire rope can be connected to the lifting ring of the rear anchor beam through the U-shaped buckle.
[0006] Preferably, the first self-locking module includes a rotating plate coaxially arranged with the winding drum, a locking plate fixedly installed in the brake box and coaxially arranged with the winding drum, and a first locking assembly installed on the rotating plate. A ring of brake tooth grooves is evenly distributed on the inner circumferential surface of the locking plate.
[0007] Preferably, the first locking assembly is provided in two sets evenly along the axis of the winding drum, and each set of the first locking assembly includes a pawl rotatably connected to the edge of the rotating plate. When the rotating plate rotates with the winding drum, the pawl is subjected to centrifugal force and engages with the brake tooth groove on the locking plate. A limiting post is provided on the rotating plate inside the pawl, and the limiting post can limit the swing angle of the pawl.
[0008] Preferably, the side wall of the rotating plate is also provided with two connecting ears corresponding to the pawl, and a tension spring is connected to the connecting ear. The other end of the tension spring is connected to the pawl, and the tension spring can pull the pawl toward the limiting post.
[0009] Preferably, the second locking assembly includes a U-shaped mounting bracket installed on the upper surface of the base. Two guide rods are fixedly connected to the inner side of the U-shaped mounting bracket. Two symmetrically arranged clamps are installed on the guide rods. One clamp is fixedly installed on the inner side wall of the U-shaped mounting bracket, and the other clamp is slidably connected to the guide rod. The side wall of the U-shaped mounting bracket is provided with a telescopic assembly. The telescopic end of the telescopic assembly passes through the side wall of the U-shaped mounting bracket and connects to the sliding clamp. The baffle is located between the two clamps and close to the fixed clamp.
[0010] Preferably, both clamps have removable brake pads on their inner sides.
[0011] In summary, compared with the prior art, the present invention has the following beneficial technical effects: (1) This utility model is equipped with a first self-locking module and a second self-locking module to form a double insurance mechanism. The first self-locking module is based on the principle of centrifugal force and automatically locks when the winding drum speed is abnormal and the rear end of the corresponding hanging basket tilts up rapidly; the second self-locking module monitors the hanging basket posture in real time through an infrared detector, and actively locks the winding drum through the second locking component when the tilting height exceeds the preset threshold; the double protection mechanism can cope with the overturning risk under different working conditions, effectively avoid safety accidents caused by the failure of a single protection, and significantly improve the safety of hanging basket construction; (2) The infrared detector of this utility model can monitor the distance between the hanging basket and the upper surface of the box girder in real time, and accurately determine whether the rear end of the hanging basket is tilted and the tilting height; after receiving the detection data, the controller can quickly identify the risk and trigger the corresponding protection action, and at the same time control the alarm to sound an alarm, reminding the operators to check the fault in time. It avoids the reverse force between the hanging basket and the winch caused by the operators not noticing the locking state, which may cause equipment damage, and ensures that the fault is dealt with in time and the construction proceeds smoothly; (3) In this utility model, the steel wire rope is connected to the rear anchor beam of the hanging basket through a U-shaped buckle, which facilitates quick connection and separation; the brake pads on the inner side of the clamp are removable and replaceable, reducing maintenance costs and difficulties; at the same time, the overall structure of the device is compact, occupies little space in the box girder, and will not interfere with other construction procedures. Attached Figure Description
[0012] Figure 1 It is a common type of winch in existing technology; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3This is a schematic diagram of the internal structure of the brake box in this utility model; Figure 4 This is a schematic diagram of a structure of the second locking component in this utility model; Figure 5 This is a schematic diagram of the second locking component from another angle in this utility model.
[0013] Reference numerals: 1-Base; 2-Bearing seat; 3-Winding spool; 4-Wire rope; 5-Drive assembly; 6-Brake box; 7-Baffle; 8-U-shaped buckle; 9-Rotating plate; 10-Locking plate; 11-Brake tooth groove; 12-Pawl; 13-Limiting post; 14-Connecting ear; 15-Tension spring; 16-U-shaped mounting bracket; 17-Guide rod; 18-Clamping plate; 19-Telescopic assembly; 20-Brake pad. Detailed Implementation
[0014] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.
[0015] like Figure 2-5 As shown, this utility model discloses a technical solution: an anti-tipping device for high-speed railway hanging basket construction. This is achieved through improvements to commonly available winches, such as… Figure 1 For winches commonly found on the market, this application adopts the following technical solution: The hanging basket has two on the left and right, and two tracks are provided on the box girder along its length. The hanging basket can move along the tracks and is fixed to the box girder by anchor rods. The anti-overturning device has two sets, which correspond to the two hanging baskets respectively. Each set includes a base 1 installed on the box girder. The upper surface of the base 1 is rotatably connected to a winding drum 3 through two bearing seats 2 on the left and right. A steel wire rope 4 is wound on the winding drum 3. The free end of the steel wire rope 4 is connected to the rear anchor beam of the hanging basket. The upper surface of the base 1 is equipped with a drive assembly 5 that drives the winding drum 3 to rotate. The drive assembly 5 uses a drive motor and a reducer. The end of the winding drum 3 away from the drive assembly 5 passes through the bearing seat 2 and is equipped with a brake box 6. The brake box 6 is equipped with a first self-locking module. The side wall of the winding drum 3 is also coaxially fixed with two baffles 7 on the left and right, and the steel wire rope 4 is wound between the two baffles 7. The device also includes a second self-locking module, which includes an infrared detector installed on the hanging basket and a second locking component installed on the base 1 corresponding to the baffle 7. The infrared detector is used to measure the distance between the installation position and the upper surface of the box girder. The device also includes a controller and an alarm. The controller is electrically connected to the drive component 5, the first self-locking module, the infrared detector, the second locking component, and the alarm, respectively. It is used to receive the detection data from the infrared detector and control the first self-locking module, the second locking component, and the alarm to operate according to a preset threshold. Furthermore, to achieve a quick and reliable connection between the wire rope 4 and the rear anchor beam of the hanging basket, and to facilitate disassembly and maintenance, a U-shaped buckle 8 is connected to the free end of the wire rope 4, and a lifting ring is installed at the rear end of the rear anchor beam of the hanging basket. The wire rope 4 can be connected to the lifting ring of the rear anchor beam through the U-shaped buckle 8. The U-shaped buckle 8 is made of high-strength alloy material, and its opening is equipped with a locking pin, which can effectively prevent the buckle from falling off during the connection process and ensure the stability of the connection. Furthermore, the first self-locking module achieves automatic locking based on the principle of centrifugal force. It includes a rotating plate 9 coaxially arranged with the winding drum 3, a locking plate 10 fixedly installed in the brake box 6 and coaxially arranged with the winding drum 3, and a first locking assembly installed on the rotating plate 9. A ring of brake teeth 11 is evenly distributed on the inner circumferential surface of the locking plate 10. When the rotational speed of the winding drum 3 increases abnormally, the first locking assembly engages with the brake teeth 11 under the action of centrifugal force, realizing emergency braking of the winding drum 3. Furthermore, to improve the locking reliability and response speed of the first self-locking module, two sets of the first locking components are evenly arranged along the axis of the winding drum 3, and each set of the first locking components includes a pawl 12 rotatably connected to the edge of the rotating plate 9. When the rotating plate 9 rotates with the winding drum 3, if the rotation speed exceeds the preset safety range, the pawl 12 swings outward under the action of centrifugal force and engages with the brake tooth groove 11 on the locking plate 10; and a limiting post 13 is provided on the inner side of the pawl 12 on the rotating plate 9. The limiting post 13 can limit the swing angle of the pawl 12, avoid the pawl 12 from being damaged due to excessive swing, and at the same time ensure that the engagement depth between the pawl 12 and the brake tooth groove 11 meets the braking requirements. Furthermore, to ensure that the pawl 12 remains in its reset state under normal operating conditions and to avoid unnecessary friction with the locking plate 10, the side wall of the rotating plate 9 is also provided with two connecting ears 14 corresponding to the pawl 12. A tension spring 15 is connected to each connecting ear 14, and the other end of the tension spring 15 is connected to the pawl 12. The tension spring 15 can pull the pawl 12 towards the limiting post 13. Within the normal rotational speed range of the winding drum 3, the tension of the tension spring 15 is greater than the centrifugal force on the pawl 12, causing the pawl 12 to press tightly against the limiting post 13. When the rotational speed abnormally increases and the centrifugal force exceeds the tension of the tension spring 15, the pawl 12 swings rapidly and engages with the brake tooth groove 11, achieving locking. Furthermore, the second self-locking module serves as a dual safety measure combining electronic monitoring and mechanical locking. Its second locking components are symmetrically arranged on the left and right sides, each including a U-shaped mounting bracket 16 fixedly installed on the upper surface of the base 1 by bolts. Two guide rods 17 are fixedly connected to the inner side of the U-shaped mounting bracket 16. Two symmetrically arranged clamping plates 18 are installed on the guide rods 17. One clamping plate 18 is fixedly installed on the inner side wall of the U-shaped mounting bracket 16, and the other clamping plate 18 is slidably connected to the guide rod 17. The side wall of the U-shaped mounting bracket 16 is provided with a telescopic component 19. The telescopic component 19 adopts a push rod motor, cylinder or hydraulic cylinder. The telescopic end of the telescopic component 19 passes through the side wall of the U-shaped mounting bracket 16 and connects with the sliding clamping plate 18. The baffle 7 is located between the two clamping plates 18 and is close to the fixed clamping plate 18. When the infrared detector detects that the height of the rear end of the hanging basket tilts up exceeds a preset threshold, such as 5cm, the controller immediately controls the telescopic component 19 to move, pushing the sliding clamp 18 towards the fixed clamp 18 until the two clamps 18 on both sides clamp the baffle 7, thereby locking the winding drum 3 and pulling the hanging basket to prevent it from tipping over. The controller uses a PLC controller. The telescopic component 19, drive component 5, alarm and infrared detector can all be purchased from the market. The structure, principle and circuit connection method of the controller with the telescopic component 19, drive component 5, alarm and infrared detector are not within the protection scope of this application and will not be described here. Furthermore, in order to reduce frictional loss between the clamping plate 18 and the baffle 7, and at the same time improve the clamping force and braking effect, the inner sides of both clamping plates 18 are provided with detachable brake pads 20. The brake pads 20 are made of composite materials with high friction coefficient and wear resistance. When the brake pads 20 are worn to a certain extent, they can be directly removed and replaced without replacing the entire clamping plate 18, thereby reducing maintenance costs and extending the service life of the device.
[0016] The working process for this application is as follows: 1. Normal walking conditions: When the hanging basket is ready to move, the operator removes the anchor rod of the rear anchor of the hanging basket, making the hanging basket movable. At this time, the controller starts the drive component 5, which drives the winding drum 3 to rotate slowly (the speed matches the walking speed of the hanging basket, about 0.5m / min). The wire rope 4 extends at a uniform speed with the rotation of the winding drum, providing a stable pulling force for the hanging basket. During the process, the infrared detector monitors the distance between the rear anchor beam of the hanging basket and the upper surface of the box girder in real time (always maintaining about 200mm). Because the winding drum rotates normally, the pawl 12 of the first self-locking module is tightly pressed against the limit post 13 by the tension of the tension spring 15 and does not engage with the locking plate 10. The telescopic component 19 of the second locking component is in the retracted state, the clamping plate 18 does not contact the baffle 7, and the whole device moves smoothly with the hanging basket. 2. Sudden rapid tilting condition (triggers the first self-locking module): If, due to sudden events such as broken track bolts or strong winds, the rear end of the hanging basket tilts up rapidly, the tension on the wire rope 4 increases instantaneously, causing the winding drum 3 to rotate abnormally (more than twice the rated speed). At this time, the rotating plate 9 accelerates synchronously with the winding drum, and the centrifugal force on the pawl 12 exceeds the tension of the tension spring 15, causing it to swing outward rapidly and engage in the brake tooth groove 11 of the locking plate 10, thus achieving emergency locking of the winding drum. The wire rope 4 stops extending, and by pulling the rear anchor beam of the hanging basket, it prevents it from tilting further. Simultaneously, the controller detects a sudden drop in the winding drum's speed and immediately triggers the alarm, issuing an audible and visual alarm to remind the operators to stop the hanging basket's movement and troubleshoot the fault. 3. Slowly tilting up (triggers the second self-locking module): If the rear end of the hanging basket slowly tilts up due to track wear, uneven load, or other reasons, the infrared detector will detect the increasing distance between the installation position and the upper surface of the box girder in real time. When the distance exceeds the initial value of 5mm (preset threshold), the infrared detector will transmit a signal to the controller, which will immediately perform two actions: First, it will activate the telescopic assembly 19, pushing the sliding clamp 18 along the guide rod 17 towards the fixed clamp 18, until the brake pads 20 of the two clamps on both sides clamp the baffle 7 of the winding drum, locking the winding drum through friction, and the wire rope 4 will pull the hanging basket to prevent it from tilting further; Second, it will control the alarm to sound. After receiving the alarm, the operators need to stop construction, check the track condition, the load distribution of the hanging basket, etc., and after troubleshooting, reset the telescopic assembly 19 and the first self-locking module through the controller before restarting the hanging basket movement. The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for preventing overturning during high-speed railway hanging basket construction, wherein the hanging basket has two sections, left and right, and two tracks are provided on the box girder along its length, the hanging basket can move along the tracks, and the hanging basket is fixed to the box girder by anchor rods, characterized in that: The anti-overturning device is provided in two sets, which correspond to the two hanging baskets respectively. Each set includes a base (1) installed on the box beam. The upper surface of the base (1) is rotatably connected to a winding drum (3) through two left and right bearing seats (2). A steel wire rope (4) is wound on the winding drum (3). The free end of the steel wire rope (4) is connected to the rear anchor beam of the hanging basket. The upper surface of the base (1) is equipped with a drive assembly (5) that drives the winding drum (3) to rotate, and the end of the winding drum (3) away from the drive assembly (5) passes through the bearing seat (2) and is equipped with a brake box (6), and the brake box (6) is equipped with a first self-locking module. The side wall of the winding drum (3) is also provided with two baffles (7) on the left and right sides. The wire rope (4) is wound between the two baffles (7). The device also includes a second self-locking module. The second self-locking module includes an infrared detector installed on the hanging basket and a second locking component installed on the base (1) corresponding to the baffle (7). The infrared detector is used to measure the distance between the installation position and the upper surface of the box girder. The device also includes a controller and an alarm.
2. The anti-overturning device for high-speed railway hanging basket construction according to claim 1, characterized in that: The free end of the wire rope (4) is connected to a U-shaped buckle (8), and a lifting ring is installed at the rear end of the rear anchor beam of the hanging basket. The wire rope (4) can be connected to the lifting ring of the rear anchor beam through the U-shaped buckle (8).
3. The anti-overturning device for high-speed railway hanging basket construction according to claim 1, characterized in that: The first self-locking module includes a rotating plate (9) coaxially arranged with the winding drum (3), a locking plate (10) fixedly installed in the brake box (6) and coaxially arranged with the winding drum (3), and a first locking assembly installed on the rotating plate (9). A ring of brake tooth grooves (11) are evenly distributed on the inner circumferential surface of the locking plate (10).
4. The anti-overturning device for high-speed railway hanging basket construction according to claim 3, characterized in that: Two sets of the first locking components are evenly arranged along the axis of the winding drum (3), and each set of the first locking components includes a pawl (12) rotatably connected to the edge of the rotating plate (9). When the rotating plate (9) rotates with the winding drum (3), the pawl (12) is subjected to centrifugal force and engages with the brake tooth groove (11) on the locking plate (10). A limiting post (13) is provided on the rotating plate (9) on the inner side of the pawl (12). The limiting post (13) can limit the swing angle of the pawl (12).
5. The anti-overturning device for high-speed railway hanging basket construction according to claim 4, characterized in that: The side wall of the rotating plate (9) is also provided with two connecting ears (14) corresponding to the pawl (12). A tension spring (15) is connected to the connecting ear (14). The other end of the tension spring (15) is connected to the pawl (12). The tension spring (15) can pull the pawl (12) toward the limiting post (13).
6. The anti-overturning device for high-speed railway hanging basket construction according to claim 1, characterized in that: The second locking assembly includes a U-shaped mounting bracket (16) installed on the upper surface of the base (1). Two guide rods (17) are fixedly connected to the inner side of the U-shaped mounting bracket (16). Two symmetrically arranged clamps (18) are installed on the guide rods (17). One clamp (18) is fixedly installed on the inner side wall of the U-shaped mounting bracket (16), and the other clamp (18) is slidably connected to the guide rod (17). The side wall of the U-shaped mounting bracket (16) is provided with a telescopic assembly (19). The telescopic end of the telescopic assembly (19) passes through the side wall of the U-shaped mounting bracket (16) and connects to the sliding clamp (18). The baffle (7) is located between the two clamps (18) and close to the fixed clamp (18).
7. The anti-overturning device for high-speed railway hanging basket construction according to claim 6, characterized in that: The inner sides of both clamps (18) are provided with removable brake pads (20).