Maintenance platform for single-beam suspension crane
By using modularly designed bolt-connected brackets, platforms, and guardrail components, the problems of difficult transportation and high maintenance costs of traditional single-girder overhead crane maintenance platforms are solved, enabling rapid disassembly, assembly, and partial replacement, thus reducing transportation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ORITCRANES BEIJING CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional single-girder overhead crane maintenance platforms are welded into a single structure, which leads to transportation difficulties and high costs. Furthermore, partial damage requires the entire crane to be returned to the factory for repair, affecting equipment availability and maintenance costs.
The system employs detachable bracket, platform, and guardrail components, which are connected by bolts to achieve a modular design. The bracket components are detachable from the main beam, and the platform and guardrail components are detachably connected, facilitating disassembly and assembly.
It enables rapid disassembly and assembly of the maintenance platform, reducing transportation costs, improving assembly efficiency, and allowing for individual replacement of damaged parts, thus reducing maintenance costs.
Smart Images

Figure CN224172340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane maintenance equipment technology, and in particular to a maintenance platform for a single-beam suspended crane. Background Technology
[0002] Currently, in the export and sale of cranes, sea freight is often used, which requires loading the crane equipment into containers for transport.
[0003] In crane equipment, the maintenance platform is a core component ensuring the safe operation of maintenance personnel. Traditional single-girder overhead crane maintenance platforms often employ welding techniques, directly welding the platform to the junction of the main beam web and the upper cover plate. While this design offers structural stability, it suffers from the following drawbacks during maritime transport:
[0004] (1) The maintenance platform and the main beam of the crane are welded into an integrated structure. The integrated structure is bulky and cannot be installed into a standard-sized container as a whole. Using a container of a specific size leads to increased costs.
[0005] (2) The length of the maintenance platform is often greater than that of the standard container. During shipment, the maintenance platform needs to be disassembled from the main beam and then welded again after being transported to the destination, which leads to an extension of the construction period.
[0006] (3) The welded structure is difficult to replace locally. If the maintenance platform is partially damaged, it needs to be returned to the factory for repair, which affects the availability of the equipment and increases the maintenance cost. Utility Model Content
[0007] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a maintenance platform for a single-girder overhead crane, which can be detached to facilitate disassembly of the maintenance platform into multiple smaller parts, making it easier to pack into standard-sized containers for transportation and reducing transportation costs.
[0008] This utility model provides a maintenance platform for a single-girder suspended crane, which is installed on the main beam of the crane. The maintenance platform comprises:
[0009] The support assembly includes multiple sets of supports arranged vertically, the multiple sets of supports being arranged along the length of the main beam on the web of the main beam, and the supports being detachably connected to the web of the main beam by bolts.
[0010] The platform component includes multiple sets of base plates arranged horizontally, the multiple sets of base plates are arranged along the length of the main beam at the bottom of the support assembly, and the base plates are detachably connected to the support assembly by a set of bolts, for supporting maintenance personnel;
[0011] The guardrail assembly includes multiple sets of guardrails arranged along the length of the main beam. The multiple sets of guardrails are arranged symmetrically in two rows on both sides about the width of the platform assembly. The guardrails are detachably connected to the support assembly by a set of bolts.
[0012] Furthermore, the support includes an upper support frame, a lower support frame, and two sets of vertical beams, both sets of vertical beams being fixedly installed vertically between the upper support frame and the lower support frame.
[0013] Furthermore, multiple I-beams are welded along the length of the web of the main beam, and each of the multiple I-beams corresponds to a multiple of the brackets. The upper support frame of the bracket is fixedly connected to the corresponding I-beam by bolts.
[0014] Furthermore, the base plate is horizontally positioned between the two sets of vertical beams, and the lower support frame has multiple longitudinally penetrating pre-drilled holes. The base plate has multiple mounting holes corresponding to the pre-drilled holes. The bolt group 2 penetrates the pre-drilled holes and the corresponding mounting holes longitudinally, thereby fixing the base plate to the top surface of the lower support frame.
[0015] Furthermore, at least two mounting plates are fixedly installed on each of the two sets of vertical beams along their length. The mounting plates have horizontally penetrating reserved holes. The guardrail includes posts and multiple sets of railings arranged vertically. The multiple sets of railings are fixedly installed on the posts in the horizontal direction. The posts have at least two mounting holes corresponding to the reserved holes. The bolt group three penetrates the reserved holes and the corresponding mounting holes in the horizontal direction, so that the guardrail is fixedly connected to the vertical beams.
[0016] Furthermore, it also includes a stabilizing component, which includes multiple sets of first stabilizing rods spaced apart in the horizontal direction. The first stabilizing rods are fixedly disposed between two adjacent sets of the upper support frames, and the two adjacent sets of first stabilizing rods are staggered. The two ends of the first stabilizing rods located at the ends are symmetrically disposed with second stabilizing rods, and the second stabilizing rods are disposed inclined downwards in a direction away from the first stabilizing rods between two adjacent sets of vertical beams.
[0017] Furthermore, a sealing strip is provided between the adjacent ends of the two sets of base plates.
[0018] Furthermore, the top surface of the base plate is provided with anti-slip features.
[0019] Furthermore, the bolt assembly one includes four bolts arranged in a rectangular pattern.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] (1) This utility model includes a support assembly, a platform assembly and a guardrail assembly. The support assembly is detachably connected to the main beam by a bolt assembly. The platform assembly and the guardrail assembly are both installed on the support assembly. Therefore, when crane equipment is needed for transportation, the maintenance platform can be quickly removed from the main beam to avoid the main beam and maintenance platform being too bulky when assembled together. This allows it to be normally loaded into a standard-sized container for transportation, avoiding the need to customize special-sized containers and reducing transportation costs.
[0022] (2) The bracket assembly of this utility model is detachably connected to the main beam through bolt group one. This utility model adopts the bolt fastening connection method. Compared with the traditional welding method, this application can complete the assembly of the maintenance platform by assembling bolt group one, avoiding secondary welding and improving assembly efficiency.
[0023] (3) The support assembly of this utility model includes multiple sets of supports, the platform assembly includes multiple sets of base plates, and the guardrail assembly includes multiple sets of guardrails. All sets of supports are detachably connected to the web of the main beam through bolt group one, all sets of base plates are detachably connected to the support assembly through bolt group two, and all sets of guardrails are detachably connected to the support assembly through bolt group three. This application adopts a modular design. When the maintenance platform is partially damaged, the corresponding structure at the damaged location can be disassembled, and the damaged supports, base plates, or guardrails can be replaced separately, avoiding the need to disassemble the entire maintenance platform for repair or replacement, thus reducing maintenance costs.
[0024] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description
[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0026] Figure 1 This is an assembly drawing of the present invention and the main beam;
[0027] Figure 2 This is a side view of the present invention.
[0028] Figure 3 This is a front structural diagram of the present invention;
[0029] Figure 4 for Figure 3 A partial view;
[0030] Figure 5This is a partial view of the platform components of this utility model;
[0031] Figure 6 for Figure 1 Enlarged view of point A in the middle;
[0032] Figure 7 for Figure 1 Enlarged view at point B in the middle; Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0034] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0035] Please refer to Figures 1 to 7 This utility model provides a maintenance platform for a single-girder suspended crane, including a support assembly 1, a platform assembly 2, and a guardrail assembly 3, for installation on the main beam 5 of the crane; wherein,
[0036] The support assembly 1 includes multiple sets of supports 11 arranged in the vertical direction. The multiple sets of supports 11 are arranged on the web of the main beam 5 along the length direction of the main beam 5, and the supports 11 are detachably connected to the web of the main beam 5 by bolt group 12.
[0037] Platform component 2 includes multiple sets of base plates 21 arranged horizontally. The multiple sets of base plates 21 are arranged along the length of the main beam 5 at the bottom of the support component 1, and the base plates 21 are detachably connected to the support component 1 by bolt group 22, for supporting maintenance personnel.
[0038] The guardrail assembly 3 includes multiple sets of guardrails 31 arranged along the length of the main beam 5. The multiple sets of guardrails 31 are arranged symmetrically in two rows on both sides about the width of the platform assembly 2. The guardrails 31 and the support assembly 1 are detachably connected by bolt group 32.
[0039] In this embodiment, multiple sets of brackets 11 are installed on the web of the main beam 5 by bolt group 12 to fix the bracket assembly 1. Then, with the bracket assembly 1 as the main structure, multiple base plates 21 are fixed to the bottom of the bracket assembly 1 by bolt group 22. The multiple base plates 21 are spliced to form the platform assembly 2, which is used to provide support and maintenance space for maintenance personnel. Multiple sets of guardrails 31 are fixed to the bracket assembly 1 by bolt group 32. The multiple sets of guardrails 31 are arranged symmetrically in two rows on both sides of the width direction of the platform assembly 2 to provide protection for maintenance personnel on the platform assembly 1 and improve the safety performance of the maintenance platform.
[0040] When containerization and transportation are required, the maintenance platform can be quickly removed from the main beam 5 by disassembling bolt group 12. This avoids the main beam 5 and maintenance platform being too bulky when assembled together, allowing them to be properly loaded into standard-sized containers for transportation, avoiding the need for custom-sized containers and reducing transportation costs.
[0041] When the crane equipment is transported to the installation site for installation, the bracket assembly 1 is aligned with the position to be installed on the web of the main beam 5, and the assembly of the maintenance platform can be completed by assembling the bolt group 11. Compared with the traditional welding method, this application avoids secondary welding of the maintenance platform and improves the assembly efficiency.
[0042] Furthermore, the support assembly 1 of this application includes multiple sets of supports 11, which together form the support assembly; the platform assembly 2 includes multiple sets of base plates 21, which together form the platform assembly; and the guardrail assembly 3 includes multiple sets of guardrails 31, which together form the guardrail assembly. All sets of supports 11 are detachably connected to the web of the main beam 5 via bolt group one 12, all sets of base plates 21 are detachably connected to the support assembly 1 via bolt group two 22, and all sets of guardrails 31 are detachably connected to the support assembly 1 via bolt group three 32. This application adopts a modular design, allowing for the individual disassembly and replacement of damaged structures when the maintenance platform is partially damaged. Damaged supports, base plates, or guardrails can be replaced individually, avoiding the need to disassemble the entire maintenance platform for repair or replacement, thus reducing maintenance costs.
[0043] In a preferred embodiment, such as Figure 2 As shown, the support frame 11 includes an upper support frame 111, a lower support frame 112, and two sets of vertical beams 113. Both sets of vertical beams 113 are fixedly installed vertically between the upper support frame 111 and the lower support frame 112. Specifically, there is a certain horizontal distance between the two sets of vertical beams 113.
[0044] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 6As shown, multiple I-beams 51 are welded along the length of the web of the main beam 5. Each I-beam 51 corresponds to a different bracket 11. The upper support frame 111 of the bracket 11 is fixedly connected to the corresponding I-beam 51 by bolt group 12.
[0045] In this embodiment, the I-beam 51 is welded to the web of the main beam 5 to provide an installation base for the bracket 11. The bolt group 12 consists of multiple high-strength bolts, and the I-beam 51 has multiple through holes for the high-strength bolts to pass through. The bracket 11 is fixed on the corresponding I-beam 51 by the bolt group 12 and the matching nuts. The bolt connection method is more convenient and easier to install or disassemble.
[0046] Preferably, bolt group 12 includes four bolts arranged in a rectangular pattern. Specifically, the rectangular arrangement of bolt group 12 makes the force distribution at the connection point more uniform, improving the stability and strength of the connection.
[0047] Preferably, the top surface of the main beam 5 has a groove along its length, and multiple reinforcing plates 52 are spaced apart in the groove. The welding positions of the reinforcing plates 52 and the I-beams 51 are aligned to increase the stability of the bracket 11 installation.
[0048] In a preferred embodiment, such as Figure 1 , Figure 4 and Figure 5 As shown, the base plate 21 is set horizontally between the two sets of vertical beams 113. The lower support frame 112 has multiple longitudinal through-holes. The base plate 21 has multiple mounting holes corresponding to the through-holes. The bolt group 22 passes through the through-holes and the corresponding mounting holes in the longitudinal direction, so that the base plate 21 is fixed to the top surface of the lower support frame 113.
[0049] In this embodiment, the base plate 21 has a rectangular plate structure with two rows of mounting holes at both ends. A row of reserved holes is provided on the lower support frame 112 at both ends, and two rows of reserved holes are provided on the lower support frame 112 in the middle. Multiple high-strength bolts are used in the bolt group 22. During installation, the base plate 21 is laid between two adjacent lower support frames 112, and then the base plate 21 is fixed to the top surface of the lower support frame 112 using multiple high-strength bolts and matching nuts. Multiple base plates 21 are spliced together to form the walkway assembly 2, which provides support for maintenance personnel. This application uses the bracket assembly 1 as the main component. By reserving the reserved holes on the lower support frame 112, the base plate 21 can be installed quickly, improving on-site installation efficiency.
[0050] In a preferred embodiment, such as Figure 1 and Figure 7As shown, at least two mounting plates 1131 are fixedly installed on each of the two sets of vertical beams 113 along their length. The mounting plates 1131 have horizontally penetrating reserved holes 2. The guardrail 31 includes posts 311 and multiple sets of railings 312 arranged vertically. The multiple sets of railings 312 are fixedly installed on the posts 311 in the horizontal direction. The posts 311 have at least two mounting holes 2 that correspond one-to-one with the reserved holes 2. Bolt group 32 penetrates the reserved holes 2 and the corresponding mounting holes 2 in the horizontal direction, so that the guardrail 31 is fixedly connected to the vertical beams 113.
[0051] In this embodiment, each railing 312 is fixedly connected to three sets of posts 311, which are arranged along the length of the railing 312 to improve the stability of the railing 312 during installation.
[0052] Each set of vertical beams 113 has two sets of mounting plates 1131 arranged side by side. The mounting plates 1131 have two pre-drilled holes. The bolt group 32 uses multiple high-strength bolts. During installation, the column 311 is aligned with the mounting plate 1131 on the vertical beam 113, and then the column 311 is fixed on the vertical beam 113 by multiple high-strength bolts and matching nuts, thus realizing the installation of the guardrail 31. The base plate 21 can be quickly installed by pre-drilling a pre-drilled hole on the lower support frame 112. The application uses the bracket assembly 1 as the main component. By pre-drilling a pre-drilled hole on the vertical beam 113, the guardrail 31 can be quickly installed, improving on-site installation efficiency.
[0053] In a preferred embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, it also includes a stabilizing component 4, which includes multiple sets of first stabilizing rods 41 spaced apart in the horizontal direction. The first stabilizing rods 41 are fixedly installed between two adjacent sets of upper support frames 111, and the two adjacent sets of first stabilizing rods 41 are staggered. The two ends of the first stabilizing rods 41 located at the ends are symmetrically provided with second stabilizing rods 42. The second stabilizing rods 42 are inclined downward in a direction away from the first stabilizing rods 41 and installed between two adjacent sets of vertical beams 113.
[0054] In this embodiment, both the first stabilizer bar 41 and the second stabilizer bar 42 are made of angle steel. The first stabilizer bar 41 is fixedly connected to the upper support frame 111 by bolts, and the second stabilizer bar 42 is also fixedly connected to the vertical beam 113 by bolts. The two adjacent sets of first stabilizer bars 41 are staggered to increase the connection strength in the horizontal direction. The second stabilizer bar 42, the vertical beam 113 connected to the second stabilizer bar 42, and the corresponding base plate 21 form a triangular structure. The triangular structure further enhances the structural connection stability. The first stabilizer bar 41 and the second stabilizer bar 42 are distributed vertically to improve the torsional resistance of the support assembly 1 and avoid large swaying in the horizontal direction.
[0055] In a preferred embodiment, such as Figure 1 and Figure 5 As shown, sealing strips are installed between the adjacent ends of two sets of base plates 21. Specifically, sealing strips (not shown in the figure) are installed at the joints of two sets of base plates 21 to prevent water from seeping into the base plates 21, avoiding the base plates 21 from being in a humid environment for a long time and accelerating corrosion and damage, thus improving the service life of the equipment; and in the field construction environment, electrical equipment is often installed under the base plates 21, so water leakage under the base plates 21 should be avoided to prevent damage to the electrical equipment.
[0056] Preferably, the top surface of the base plate 21 is provided with anti-slip texture. Specifically, the anti-slip texture increases the anti-slip performance of the base plate 21 and improves the safety of the walkway assembly 2.
[0057] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0058] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0059] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A maintenance platform for a single-girder suspended crane, used for installation on the main beam of the crane, characterized in that, The maintenance platform includes: The support assembly includes multiple sets of supports arranged vertically, the multiple sets of supports being arranged along the length of the main beam on the web of the main beam, and the supports being detachably connected to the web of the main beam by bolts. The platform component includes multiple sets of base plates arranged horizontally, the multiple sets of base plates are arranged along the length of the main beam at the bottom of the support assembly, and the base plates are detachably connected to the support assembly by a set of bolts, for supporting maintenance personnel; The guardrail assembly includes multiple sets of guardrails arranged along the length of the main beam. The multiple sets of guardrails are arranged symmetrically in two rows on both sides about the width of the platform assembly. The guardrails are detachably connected to the support assembly by a set of bolts.
2. The maintenance platform for a single-girder suspended crane according to claim 1, characterized in that, The support frame includes an upper support frame, a lower support frame, and two sets of vertical beams, both sets of vertical beams being fixedly installed vertically between the upper support frame and the lower support frame.
3. A maintenance platform for a single-girder suspended crane according to claim 2, characterized in that, Multiple I-beams are welded along the length of the web of the main beam. Each of the multiple I-beams corresponds to a specific bracket. The upper support frame of the bracket is fixedly connected to the corresponding I-beam by bolts.
4. A maintenance platform for a single-girder suspended crane according to claim 2, characterized in that, The base plate is horizontally positioned between the two sets of vertical beams. The lower support frame has multiple longitudinally penetrating pre-drilled holes. The base plate has multiple mounting holes corresponding to the pre-drilled holes. The bolt group II penetrates the pre-drilled holes and the corresponding mounting holes longitudinally, thereby fixing the base plate to the top surface of the lower support frame.
5. A maintenance platform for a single-girder suspended crane according to claim 2, characterized in that, Both sets of vertical beams are fixedly provided with at least two mounting plates along their length. The mounting plates are provided with pre-drilled holes that penetrate horizontally. The guardrail includes posts and multiple sets of railings arranged vertically. The multiple sets of railings are fixedly provided on the posts horizontally. The posts are provided with at least two mounting holes that correspond one-to-one with the pre-drilled holes. The bolt group three penetrates horizontally through the pre-drilled holes and the corresponding mounting holes, so that the guardrail is fixedly connected to the vertical beams.
6. A maintenance platform for a single-girder suspended crane according to claim 2, characterized in that, It also includes a stabilizing component, which includes multiple sets of first stabilizing bars spaced apart in the horizontal direction. The first stabilizing bars are fixedly disposed between two adjacent sets of the upper support frames, and the two adjacent sets of first stabilizing bars are staggered. The two ends of the first stabilizing bars located at the ends are symmetrically disposed with second stabilizing bars. The second stabilizing bars are disposed downwardly in a direction away from the first stabilizing bars between two adjacent sets of vertical beams.
7. A maintenance platform for a single-girder suspended crane according to claim 5, characterized in that, A sealing strip is provided between the two adjacent ends of the bottom plates of two adjacent groups.
8. A maintenance platform for a single-girder suspended crane according to claim 5, characterized in that, The top surface of the base plate is provided with anti-slip features.
9. A maintenance platform for a single-girder suspended crane according to claim 3, characterized in that, The bolt group one includes four bolts arranged in a rectangular pattern.