Transformer for ports and piers
The design of modular connecting reinforcing blocks and pin-fixed lifting lugs solves the problem of welding breakage of transformer lifting lugs used in port terminals, achieving higher structural stability and safety, and adapting to the complex conditions of the port environment.
Patent Information
- Application Number
- CN202520213894.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-11
AI Technical Summary
The existing welding method used for lifting lugs on transformers at port terminals is prone to breakage during lifting, posing risks of transformer damage and safety hazards.
The modular and detachable connection method is adopted. Multiple lifting lugs are fixed by connecting reinforcing blocks and pins to form an integral structure, which distributes the lifting force and avoids stress concentration at a single point.
It improves the structural stability and safety of transformer hoisting, avoids weld point breakage, adapts to the vibration and impact of complex port environments, and ensures the structural integrity for long-term use.
Smart Images
Figure CN223651230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a transformer for use in ports and wharves. Background Technology
[0002] Port and dock transformers are electrical equipment specifically designed for the special environments of ports and docks, primarily used for power transmission and distribution. Because their operating environment is often affected by humidity, salt spray, and severe vibration, the transformer's hoisting structure must also meet high-strength load requirements. In existing designs of port and dock transformers, the lifting lugs are typically welded to the transformer's top cover. While this welding method initially provides a robust structure, uneven stress during actual hoisting can easily lead to weld breakage, potentially damaging the transformer itself and posing safety risks to operators. Therefore, improvements and optimizations are needed to address this issue. Utility Model Content
[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a transformer for port terminals.
[0004] The technical solution adopted by this utility model for a port terminal transformer includes a transformer shell, a transformer top cover, and a lifting assembly fixed to the transformer top cover. The lifting assembly includes a transformer lifting lug and a connecting reinforcing block connecting two transformer lifting lugs together. Each transformer lifting lug includes a lug bottom and a lug body vertically disposed in the middle of the lug bottom. The two ends of the lug bottom are vertically bent to form a lug reinforcement. The connecting reinforcing block has a top surface and front and rear sides. The top surface of the reinforcing block has a main insertion port for inserting the lug body. The lug reinforcement fits against the exterior of the front and rear sides of the reinforcing block. The main body of the lifting lug has a through-hole for fixing. The front and rear sides of the reinforcing block have joint holes for connecting the reinforcing block. The joint holes for connecting the reinforcing block and the lifting lug fixing hole are connected by pins. The upper surface of the reinforcing block has a longitudinal connecting hole for connecting the reinforcing block. The left and right sides of the connecting reinforcing block have transverse connecting holes for connecting the reinforcing block. The transformer upper cover plate has an upper cover plate inlet for the lifting lug to pass through and corresponding to the main inlet of the reinforcing block, and a reinforcing block mounting hole corresponding to the longitudinal connecting hole of the reinforcing block. The transformer housing has an internal cavity. The side wall of the internal cavity has a housing joint hole that connects to the transverse connecting hole of the reinforcing block.
[0005] The upper end of the reinforcing block is provided with a reinforcing block limiting protrusion at both ends, and the back of the transformer upper cover is provided with an upper cover limiting groove corresponding to the reinforcing block limiting protrusion.
[0006] The reinforcing block is provided with a lower stop block on the front and rear sides, and the lower stop block is provided with a lower stop block limiting port for limiting the lifting lug reinforcing part.
[0007] The left and right side walls of the internal cavity of the housing are welded with internal support frames at the housing docking holes, and the internal support frames are provided with support frame receiving grooves for receiving the connecting reinforcement blocks.
[0008] The advantages of this utility model of a transformer for port terminals are: modular and detachable connection method, which uses connecting reinforcing blocks and pins to fix multiple lifting lugs into a whole, distributing the lifting force and avoiding the risk of breakage caused by stress concentration at welding points. At the same time, the components do not shift or loosen during the lifting process, making the structure more robust and safer. Attached Figure Description
[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0010] Figure 1 This is a schematic diagram of the structure of the transformer for port terminals according to this utility model;
[0011] Figure 2 This is a structural schematic diagram of the lifting assembly of this utility model;
[0012] Figure 3 This is a schematic diagram of the structure of the transformer lifting lug of this utility model;
[0013] Figure 4 This is a schematic diagram of the structure of the connecting reinforcement block of this utility model;
[0014] Figure 5 This is a schematic diagram of the structure of the transformer top cover plate of this utility model;
[0015] Figure 6 This is a schematic diagram of the structure of the transformer housing of this utility model. Detailed Implementation
[0016] like Figure 1-6As shown, the port terminal transformer of this utility model includes a transformer housing 1, a transformer top cover 2, and a lifting assembly 3 fixed on the transformer top cover 2. The lifting assembly 3 includes transformer lifting lugs 4 and a connecting reinforcing block 5 connecting two transformer lifting lugs 4 together. Each transformer lifting lug 4 includes a lifting lug bottom 8 and a lifting lug body 9 vertically disposed in the middle of the lifting lug bottom 8. The two ends of the lifting lug bottom 8 are vertically bent to form lifting lug reinforcing parts 10, which increases the contact area between the lifting lug and the connecting reinforcing block 5 and improves the resistance. To improve bending ability and prevent local deformation caused by hoisting sway, the connecting reinforcing block 5 has an upper end face 14 and front and rear sides 15. The upper end face 14 of the reinforcing block has a main insertion port 16 for inserting the lifting lug body 9. The lifting lug reinforcing part 10 fits against the outside of the front and rear sides 15 of the reinforcing block. The lifting lug reinforcing part 10 and the side of the lifting lug body 9 have through lifting lug fixing holes 11. The front and rear sides 15 of the reinforcing block have reinforcing block docking holes 17. The reinforcing block docking holes 17 and the lifting lug fixing holes 11 are connected. 1. The lifting force is evenly distributed to the connecting reinforcing block 5 by the pin 6, avoiding the risk of single-point fracture of traditional welding points. The upper end face 14 of the reinforcing block is provided with a longitudinal connecting hole 18, and the left and right sides of the connecting reinforcing block 5 are provided with transverse connecting holes 19. The transformer upper cover plate 2 is provided with an upper cover plate inlet 20 for the lifting lug body 9 to pass through and corresponding to the main inlet 16 of the reinforcing block, and a reinforcing block mounting hole 21 corresponding to the longitudinal connecting hole 18 of the reinforcing block. The transformer housing 1 is provided with a housing internal cavity 23. The side wall of the housing internal cavity 23 is provided with a housing docking hole 24 connected to the transverse connecting hole 19 of the reinforcing block. The transverse connecting hole 19, the longitudinal connecting hole 18, and the docking hole 17 of the reinforcing block form a three-dimensional fixed structure, avoiding deformation caused by force in one direction. The multi-directional fixed design adapts to the complex vibration and impact in the port and dock environment, improves seismic performance, and the modular and detachable connection method, through the connecting reinforcing block and pin fixing method, makes multiple lifting lugs form a whole, disperses the lifting force, and makes it safer.
[0017] The upper end face 14 of the reinforcing block is provided with reinforcing block limiting protrusions 26 at the front and rear ends, and the back of the transformer upper cover plate 2 is provided with upper cover plate limiting grooves 27 corresponding to the reinforcing block limiting protrusions 26, to prevent the connecting reinforcing block from sliding laterally during hoisting and to ensure vertical stability of the force direction.
[0018] The front and rear sides 15 of the reinforcing block are provided with a lower stop block 29. The lower stop block 29 is provided with a lower stop block limiting port 30 for limiting the lifting lug reinforcement 10, which further restricts the horizontal displacement of the lifting lug and prevents it from loosening.
[0019] The left and right side walls of the inner cavity 23 of the housing are welded with an inner support frame 33 at the housing docking hole 24. The inner support frame 33 is provided with a support frame receiving groove 34 for the connecting reinforcement block 5 to receive, providing additional support for the connecting reinforcement block 5, so that the structural integrity can be maintained even if it is subjected to salt spray corrosion or vibration for a long time.
[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.
Claims
1. A transformer for use in ports and wharves, comprising a transformer housing (1), a transformer top cover (2), and a lifting assembly (3) fixed to the transformer top cover (2), characterized in that: The lifting assembly (3) includes a transformer lifting lug (4) and a connecting reinforcing block (5) connecting two transformer lifting lugs (4) together. The transformer lifting lug (4) includes a lifting lug bottom (8) and a lifting lug body (9) vertically disposed in the middle of the lifting lug bottom (8). The two ends of the lifting lug bottom (8) are vertically bent to form lifting lug reinforcing parts (10). The connecting reinforcing block (5) has a reinforcing block upper end face (14) and a reinforcing block front and rear sides (15). The reinforcing block upper end face (14) has a reinforcing block main insertion port (16) for the lifting lug body (9) to be inserted. The lifting lug reinforcing part (10) fits against the outside of the reinforcing block front and rear sides (15). The lifting lug reinforcing part (10) and the side of the lifting lug body (9) have through lifting lug fixing holes (11). The front and rear sides (15) of the reinforcing block are provided with reinforcing block docking holes (17). The reinforcing block docking holes (17) and the lifting lug fixing holes (11) are connected by pins (6). The upper end face (14) of the reinforcing block is provided with a longitudinal connecting hole (18). The left and right sides of the connecting reinforcing block (5) are provided with a transverse connecting hole (19). The transformer upper cover plate (2) is provided with an upper cover plate socket (20) for the lifting lug body (9) to pass through and corresponding to the main socket (16) of the reinforcing block and a reinforcing block mounting hole (21) corresponding to the longitudinal connecting hole (18) of the reinforcing block. The transformer housing (1) is provided with a housing internal cavity (23). The side wall of the housing internal cavity (23) is provided with a housing docking hole (24) connected to the transverse connecting hole (19) of the reinforcing block.
2. The transformer for port terminals according to claim 1, characterized in that: The upper end face (14) of the reinforcing block is provided with reinforcing block limiting protrusions (26) at the front and rear ends, and the back of the transformer upper cover plate (2) is provided with an upper cover plate limiting groove (27) corresponding to the reinforcing block limiting protrusions (26).
3. The port terminal transformer according to claim 1, characterized in that: The reinforcing block is provided with a lower stop block (29) on the front and rear sides (15) of the reinforcing block, and the lower stop block (29) is provided with a lower stop block limiting port (30) for limiting the lifting lug reinforcing part (10).
4. The transformer for port terminals according to claim 1, characterized in that: The left and right side walls of the inner cavity (23) of the housing are welded with an inner support frame (33) at the housing docking hole (24). The inner support frame (33) is provided with a support frame receiving groove (34) for the connecting reinforcement block (5) to receive.