High-safety platform for installing and maintaining travelling crane sliding contact line

Abstract

The invention discloses a travelling crane sliding contact line installation and maintenance platform with high safety performance, and belongs to the technical field of travelling crane sliding contact line platforms, the travelling crane sliding contact line installation and maintenance platform comprises a bearing platform, a moving assembly, a hoisting assembly and a safety assembly, the bearing platform comprises multiple groups of splicing single pieces, the multiple groups of splicing single pieces are mutually assembled through assembling high-strength bolts, and the safety assembly is arranged on the bearing platform. Workers can be borne; an anti-skid springboard is laid on the surface of the platform formed by the splicing single pieces, and the anti-skid springboard is fixed to the splicing single pieces through high-strength bolts; the moving assembly comprises a maintenance travelling crane rail, rolling wheels and fixing bolts, and the maintenance travelling crane rail is arranged below the bearing platform. According to the invention, the bearing platform is directly operated on the maintenance travelling crane track by adopting the modularized mobile platform, so that the sliding contact line installation period of a single gantry crane can be shortened to 10 days, the construction period compression rate reaches 77% or above, the overall project progress is greatly improved, and the strict requirement of a large project on the construction period is met.

Description

Technical Field

[0001] This invention belongs to the technical field of overhead contact line platforms, specifically a high-safety-performance overhead contact line platform for installation and maintenance. Background Technology

[0002] In the installation and maintenance of large lifting machinery, especially giant gantry cranes and bridge cranes, the maintenance crane, as a key auxiliary equipment, undertakes the important tasks of inspecting, maintaining, and replacing parts of the main equipment. To ensure that the maintenance crane can run smoothly along the main beam track and continuously receive power, a conductor rail system for power supply needs to be installed along its running path. Currently, when installing the conductor rail of the maintenance crane inside the main beam box of a large gantry crane, the construction method of full-coverage scaffolding is commonly used. The specific procedure is as follows: an aerial work platform (scaffolding) covering the entire conductor rail installation path is erected in the working area about 19 meters above the ground inside the main beam. Construction workers perform the positioning, fixing, and wiring of the conductor rail on the scaffolding platform.

[0003] However, this traditional construction method has many technical defects and practical application problems. First, scaffolding erection typically takes about 30 days, and dismantling takes about 15 days, with a single piece of equipment taking 45 days. For projects with multiple pieces of equipment (such as this project involving four large gantry cranes), the total construction period can be as long as 180 days, severely restricting the overall construction progress and making it difficult to meet the strict time requirements of modern large-scale projects. Second, the working height reaches 19 meters, which is a high-risk high-altitude operation. There are safety hazards such as personnel falling and falling tools or materials during the erection and dismantling of scaffolding. Especially in projects with extremely strict safety standards, such as Saudi Aramco, scaffolding must be erected by their approved professionals and periodically inspected by designated inspectors and supervisors every 15 days, making management complex and creating enormous safety pressure. At the same time, the erection, use, and dismantling of scaffolding all require multiple levels of approval from the owner, making procedures complicated, construction plans susceptible to external factors, and resulting in low flexibility in on-site scheduling. Summary of the Invention

[0004] The purpose of this invention is to provide a high-safety-performance overhead contact line platform for installation and maintenance of cranes, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-safety-performance installation and maintenance overhead contact line platform, comprising a load-bearing platform, a moving component, a hoisting component, and a safety component. The load-bearing platform includes assembled single pieces, and multiple sets of assembled single pieces are provided. These multiple sets are assembled together by high-strength bolts to support workers.

[0006] Through innovative mobile platform structure and construction technology, the multiple drawbacks of traditional scaffolding solutions in terms of construction period, cost, safety and process have been solved, achieving a balance of safety, efficiency and economy in the installation of large gantry crane sliding contact lines.

[0007] The platform surface, which is composed of the assembled individual pieces, is covered with anti-slip planks, and the anti-slip planks are fixed to the assembled individual pieces with high-strength bolts.

[0008] By laying anti-slip planks on the platform surface, the stability of the construction workers' standing position can be enhanced;

[0009] The mobile component includes a maintenance trolley track, rollers, and fixing bolts. The maintenance trolley track is located below the support platform, and the support platform is connected to the maintenance trolley track via rollers.

[0010] The platform uses rollers taken from scrapped maintenance cranes, which enables the reuse of scrapped equipment parts, saves on the cost of purchasing new materials, and conforms to the concept of green construction and sustainable development.

[0011] As a further preferred embodiment of this technical solution: the bearing platform is fixed to the roller by fixing bolts, and the roller is rotatably connected to the groove of the maintenance trolley track. At the same time, the fixing bolt is threaded to the bearing platform and is rotatably connected to the roller through the bolt.

[0012] Secondly, the rollers are fixed to the platform with large-size fixing bolts, which can achieve quick installation and disassembly. The structure is reliable and reusable.

[0013] As a further preferred embodiment of this technical solution: the hoisting assembly includes a hand chain hoist and lifting points. The bearing platform is hoisted to the internal track position of the main beam by four 5-ton hand chain hoists, and the hand chain hoists are fixed to the main beam box body through the lifting points.

[0014] The platform was hoisted to the track position using four 5-ton hand-operated hoists and fixed in place with bolts to ensure installation accuracy and construction stability.

[0015] As a further preferred embodiment of this technical solution: the safety component includes a limiting component and a traction rope, and the safety component is installed on the bearing platform through the limiting component, and the limiting component is provided with a traction rope, while the traction rope is located below one side of the bearing platform.

[0016] By installing traction ropes underneath the platform and having ground personnel control its movement, while personnel above observe to prevent slippage and over-positioning, operational safety can be improved.

[0017] As a further preferred embodiment of this technical solution: a sliding contact line is installed on the bearing platform, and the end of the sliding contact line away from the bearing platform is installed at the position of the top beam;

[0018] By using the aforementioned support platform to install the overhead contact line for maintenance cranes, the construction period is shortened by approximately 77% compared to the traditional full-coverage scaffolding solution, while significantly reducing construction costs and the risks of working at heights.

[0019] As a further preferred embodiment of this technical solution: a foot stop plate for stopping the feet is installed on the bearing platform, and the foot stop plate is installed on the bearing platform by bolts.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In this invention, by adopting a modular mobile platform, the carrying platform can run and operate directly on the maintenance trolley track, thereby shortening the installation cycle of the sliding contact line of a single gantry crane to 10 days, with a construction period compression rate of over 77%, greatly improving the overall project progress and meeting the strict requirements of large-scale projects for the construction period.

[0022] 2. In this invention, the operation is carried out on a support platform running on the existing maintenance crane track, which reduces the need for large-scale high-altitude scaffolding. The platform structure is stable, and safety is ensured through measures such as third-party torque witnessing and traction testing. This significantly reduces the safety risks during the construction process and is more in line with the safety management requirements of high-standard projects such as Saudi Aramco.

[0023] 3. In this invention, the working platform adopts a modular structure, which can be assembled inside the main beam and hoisted into place using four 5-ton hand-operated hoists. The installation process is simple. At the same time, a traction rope is set under the support platform, which is controlled by ground personnel for movement. The operation is flexible and does not require scaffolding workers with special qualifications. It also avoids cumbersome approval and acceptance processes, improving the organization efficiency and controllability of on-site construction. In addition, the support platform is composed of multiple modular pieces connected by high-strength bolts, which facilitates segmented transportation and assembly in confined spaces. Furthermore, the rollers are detachably connected to the platform by large-specification bolts, which is reliable and easy to assemble and disassemble. The platform as a whole can be reused for the installation of sliding contact lines of multiple pieces of equipment, which is highly versatile and has a wide range of applications. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a high-safety installation and maintenance crane conductor rail platform according to the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of a high-safety installation and maintenance crane conductor rail platform according to the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the hoisting structure of a high-safety-performance overhead contact line platform for installation and maintenance of a crane according to the present invention;

[0027] Figure 4 This is a partial structural diagram of a high-safety installation and maintenance crane conductor rail platform according to the present invention. Figure 1 ;

[0028] Figure 5 This is a partial structural diagram of a high-safety installation and maintenance crane conductor rail platform according to the present invention. Figure 2 .

[0029] Legend: 1. Load-bearing platform; 101. Assembled single piece; 2. Assembled high-strength bolts; 3. Anti-slip scaffolding; 4. Moving component; 5. Maintenance trolley track; 6. Roller; 7. Fixing bolt; 8. Lifting component; 9. Hand chain hoist; 10. Lifting point; 11. Safety component; 1101. Limiting component; 1102. Traction rope; 12. Sliding contact line. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example

[0032] Please see Figures 1-5 As shown, the present invention provides a technical solution: a novel installation and maintenance crane sliding contact line 12 platform, including a bearing platform 1, a moving component 4, a hoisting component 8, and a safety component 11. The bearing platform 1 includes an assembly piece 101, and the assembly piece 101 is provided in multiple sets. At the same time, the multiple sets are assembled together by assembly high-strength bolts 2 for supporting workers.

[0033] The platform surface, which is composed of the assembled single piece 101, is covered with anti-slip planks 3, and the anti-slip planks 3 are fixed to the assembled single piece 101 by high-strength bolts;

[0034] The mobile component 4 includes a maintenance trolley track 5, rollers 6, and fixing bolts 7. The maintenance trolley track 5 is located below the support platform 1, and the support platform 1 is connected to the maintenance trolley track 5 via the rollers 6.

[0035] Further: The bearing platform 1 is composed of several sets of assembly pieces 101. The assembly pieces 101 are connected by M20×40mm high-strength bolts 2. At the same time, the platform surface is covered with anti-slip planks 3, which are fixed by M20×50mm high-strength bolts.

[0036] Furthermore: The support platform 1 is equipped with rollers 6, which cooperate with the maintenance trolley track 5 to allow the support platform 1 to move along the internal track of the beam, thus avoiding the erection of large-area scaffolding;

[0037] In this embodiment, specifically: the bearing platform 1 is fixed to the roller 6 by the fixing bolt 7, and the roller 6 is rotatably connected to the groove of the maintenance trolley track 5. At the same time, the fixing bolt 7 is threadedly connected to the bearing platform 1, and the fixing bolt 7 is rotatably connected to the roller 6.

[0038] Further: Roller 6 was obtained from the dismantling of a scrapped crane, and roller 6 is fixedly connected to the bearing platform 1 by M44×400mm fixing bolts 7;

[0039] In this embodiment, specifically: the hoisting component 8 includes a hand chain hoist 9 and a lifting point 10. The bearing platform 1 is hoisted to the internal track position of the main beam by four 5-ton hand chain hoists 9, and the hand chain hoists 9 are fixed to the main beam box body by the lifting point 10.

[0040] In this embodiment, specifically: the safety component 11 includes a limiting component 1101 and a traction rope 1102, and the safety component 11 is installed on the bearing platform 1 through the limiting component 1101, and the limiting component 1101 is provided with a traction rope 1102, while the traction rope 1102 is located on one side below the bearing platform 1.

[0041] Further: A traction rope 1102 is provided below the bearing platform 1, which is pulled by personnel below to control the movement of the bearing platform 1. The traction rope 1102 must be checked for flexibility before use to make the bearing platform 1 slide slowly. At the same time, personnel above should observe to prevent slippage and improve operational safety.

[0042] In this embodiment, specifically: a sliding contact line 12 is installed on the support platform 1, and the end of the sliding contact line 12 away from the support platform 1 is installed at the position of the top beam;

[0043] Furthermore: The sliding contact line 12 is mounted on the main beam via pulleys for contact with the current collector, driving the motor to rotate and move the supporting platform 1.

[0044] In this embodiment, specifically: a foot stop plate for stopping feet is installed on the bearing platform 1, and the foot stop plate is installed on the bearing platform 1 by bolts;

[0045] Furthermore, the addition of toe boards provides workers with a stable and safe working surface, improves working conditions in confined spaces at heights, and helps to improve installation accuracy and construction quality.

[0046] Working principle or structural principle: First, after the main beam assembly is inspected and accepted, the single platform is transported to the designated position inside the main beam. Then, it is assembled and spliced ​​inside by high-strength bolts 2 to form the bearing platform 1. At the same time, four 5-ton hand-operated hoists 9 are used to hoist the platform to the maintenance trolley track 5. Rollers 6 are installed on the bearing platform 1 by fixing bolts 7, and the rollers 6 are located inside the groove of the maintenance trolley track 5. Then, the anti-slip scaffold 3 is installed on the base plate spliced ​​by the assembled single pieces 101 by bolts. At the same time, the toe plate is installed on the bearing platform 1 by bolts. Finally, the platform installation is witnessed and confirmed by a third-party organization. Then, the traction rope 1102 is installed under the bearing platform 1, and the personnel below pull to confirm the flexibility. After confirmation that there are no problems, the workers can enter the main beam to install the sliding contact line 12.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-safety-performance overhead contact line installation and maintenance platform, comprising a load-bearing platform (1), a moving component (4), a hoisting component (8), and a safety component (11), characterized in that: The carrying platform (1) includes a single piece (101), and the single piece (101) is provided in multiple groups. At the same time, the multiple groups are assembled together by high-strength bolts (2) to support workers. The platform surface formed by the assembled single piece (101) is covered with anti-slip planks (3), and the anti-slip planks (3) are fixed to the assembled single piece (101) by high-strength bolts; The moving component (4) includes a maintenance trolley track (5), rollers (6), and fixing bolts (7). The maintenance trolley track (5) is located below the support platform (1), and the support platform (1) is connected to the maintenance trolley track (5) via rollers (6).

2. The high-safety-performance overhead contact line platform for installation and maintenance of cranes according to claim 1, characterized in that: The bearing platform (1) is fixed to the roller (6) by the fixing bolt (7), and the roller (6) is rolled in the groove of the maintenance trolley track (5). At the same time, the fixing bolt (7) is threaded on the bearing platform (1) and the fixing bolt (7) is rotated through the roller (6).

3. The high-safety-performance overhead contact line platform for installation and maintenance of cranes according to claim 2, characterized in that: The hoisting assembly (8) includes a hand chain hoist (9) and a lifting point (10). The bearing platform (1) is hoisted to the internal track position of the main beam by four 5-ton hand chain hoists (9), and the hand chain hoists (9) are fixed to the main beam box body by the lifting point (10).

4. The high-safety-performance overhead contact line platform for installation and maintenance of cranes according to claim 3, characterized in that: The safety component (11) includes a limiting component (1101) and a traction rope (1102). The safety component (11) is installed on the carrying platform (1) through the limiting component (1101), and the limiting component (1101) is provided with a traction rope (1102). At the same time, the traction rope (1102) is located below one side of the carrying platform (1).

5. The high-safety-performance overhead contact line platform for installation and maintenance of cranes according to claim 4, characterized in that: A sliding contact line (12) is installed on the bearing platform (1), and the end of the sliding contact line (12) away from the bearing platform (1) is installed at the position of the top beam.

6. The high-safety-performance overhead contact line platform for installation and maintenance of cranes according to claim 5, characterized in that: The support platform (1) is equipped with a foot guard for stopping the feet, and the foot guard is bolted to the support platform (1).

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