A transport semitrailer with two ways of loading and unloading ladle and slag ladle

By designing a semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles, the simultaneous transportation of molten iron ladles and slag ladles was realized, solving the problems of single function of transport vehicles and hoisting safety hazards in the existing technology, and improving transportation efficiency and stability.

CN224297299UActive Publication Date: 2026-05-29JIANGSU HAIPENG SPECIAL VEHICLES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HAIPENG SPECIAL VEHICLES
Filing Date
2025-08-22
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing transport vehicles can only transport molten iron ladles or slag ladles individually, and cannot transport them simultaneously. This leads to increased investment in equipment at the production site and low transportation turnover efficiency. Furthermore, hoisting in confined spaces poses safety hazards.

Method used

Design a transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles. A support seat is set on the main load-bearing frame to place the molten iron ladle, and an installation ring is set in the middle of the rear gooseneck to place the slag ladle. The support seat can be flexibly installed through a set of mounting holes and positioning pin holes, and the placement angle of the molten iron ladle can be adjusted to ensure the lifting stability. At the same time, a support leg assembly is set at the front of the vehicle to improve stability.

Benefits of technology

Simultaneous transportation of molten iron ladles and slag ladles was achieved, reducing equipment investment at the production site, improving transportation turnover efficiency, and ensuring hoisting stability by adjusting the position of the support base, thereby enhancing the safety and stability of the vehicle in complex environments.

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Abstract

The application belongs to the technical field of metallurgy, and discloses a transport semitrailer with two modes of loading and unloading molten iron tank and slag tank, which comprises a main bearing frame and front and rear goosenecks, the bottom of the front gooseneck is provided with a traction pin connected with a vehicle head, the main bearing frame comprises front and rear circular pipe beams, the two ends of the front and rear circular pipe beams are connected through side cross beams respectively, the inner sides of the front and rear circular pipe beams are provided with front and rear cross beams respectively, mounting hole groups are arranged on the front and rear cross beams and the two side cross beams, support seats are mounted on the front and rear cross beams or the two side cross beams through the mounting hole groups, a molten iron tank is placed between the two support seats, and an installation ring is arranged in the middle of the rear gooseneck, and a slag tank is placed on the installation ring. The molten iron tank and the slag tank are placed on the main bearing frame and the rear gooseneck respectively, the simultaneous transportation of two substances is realized, and the transportation turnover efficiency is improved; the support seats are mounted through the mounting hole groups, the mounting positions of the support seats can be determined according to the needs of the scene, and the stable hoisting of the molten iron tank is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, and in particular to a transport semi-trailer with two methods for loading and unloading molten iron ladles and slag ladles. Background Technology

[0002] In the iron and steel metallurgy industry, molten iron ladles and slag ladles are key equipment used for holding and transporting molten iron and smelting waste slag. Their transfer efficiency directly affects the continuity and stability of smelting production. Currently, the industry generally uses specialized transport vehicles to transfer molten iron ladles and slag ladles. These transport vehicles usually need to work in conjunction with the ladles to complete loading, unloading, and transportation operations.

[0003] However, existing transport vehicles can often only transport molten iron ladles or slag ladles individually, unable to transport both simultaneously. This limited functionality increases equipment investment at the production site and reduces transport turnover efficiency. Furthermore, existing molten iron ladle transport vehicles have fixed installation positions for the ladles, limiting loading and unloading to specific directions. In narrow workshops where turning is difficult, the inability to adjust the ladle's trunnion position by changing the vehicle's location creates an angle between the overhead crane's frame and the ladle's trunnion, leading to rotation during lifting and posing a safety hazard.

[0004] Therefore, developing a semi-trailer that can flexibly load and unload tanks according to the actual conditions of the workshop and can also meet the transportation needs of molten iron ladles and slag ladles has become the key to solving the current pain points of the industry. Utility Model Content

[0005] To solve the above problems, this utility model provides a transport semi-trailer with two methods for loading and unloading molten iron ladles and slag ladles.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a transport semi-trailer with two methods for loading and unloading molten iron ladles and slag ladles, including a main load-bearing frame and front and rear goosenecks arranged at the front and rear ends of the main load-bearing frame. The bottom of the front gooseneck is provided with a traction pin for connection with the tractor. The main load-bearing frame includes a front circular tube beam and a rear circular tube beam arranged at intervals. The two ends of the front and rear circular tube beams are connected by side crossbeams. The inner sides of the front and rear circular tube beams are respectively provided with front and rear crossbeams. Mounting hole groups are provided on the front and rear crossbeams and the two side crossbeams. Support seats are installed on the front and rear crossbeams or the two side crossbeams through the mounting hole groups. Molten iron ladles are placed between the two support seats. A mounting ring is provided in the middle of the rear gooseneck. Slag ladles are placed on the mounting ring and connected by bolts. Four protective plates are arranged in a circle around the mounting ring on the rear gooseneck.

[0007] By adopting the above technical solution, a support seat is set on the main load-bearing frame to place the molten iron ladle, and an installation ring is set in the middle of the rear gooseneck to place the slag ladle. This allows for the simultaneous placement of both molten iron and slag ladles, enabling the simultaneous transport of both materials. This effectively reduces equipment investment at the production site and improves transport turnover efficiency. Support seats are installed on the front crossbeam, rear crossbeam, or both side crossbeams through mounting hole groups. This allows the two support seats to be installed on the front crossbeam, rear crossbeam, or both side crossbeams. This allows the installation position of the support seats to be determined according to the needs of the workshop site, thereby adjusting the placement angle of the molten iron ladle to ensure that the gantry crane's lifting frame is parallel to the trunnion of the molten iron ladle, ensuring the stability of the molten iron ladle during lifting.

[0008] Furthermore, the support base includes a base plate and a top plate, which are connected and supported by several vertical plates. The base plate has a positioning hole and four connecting holes arranged in a matrix. The mounting hole group includes a positioning pin hole in the middle and four mounting holes arranged in a matrix. The positioning hole and the positioning pin hole are positioned by positioning pins, and the connecting holes and the mounting holes are connected by bolts.

[0009] By adopting the above technical solution, positioning holes and positioning pin holes are set to facilitate accurate positioning and ensure the installation position of the support base; four connection holes and mounting holes are set to ensure that the support base and the crossbeam are installed firmly.

[0010] Furthermore, limit blocks are respectively provided at both ends of the top plate.

[0011] By adopting the above technical solution and setting a limiting block, the wall of the molten iron ladle is limited to prevent the ladle from shaking during transportation.

[0012] Furthermore, the front crossbeam, rear crossbeam, and side crossbeam are respectively provided with stop blocks at both ends of the support base. Two locking screws are screwed diagonally downward on the stop blocks. Two stop blocks are correspondingly provided at both ends of the base plate. The ends of the locking screws abut against the stop blocks.

[0013] By adopting the above technical solution, setting up stops, locking screws, and stop blocks, the connection between the base plate and the crossbeam is further ensured to be tight and the bolts are prevented from loosening.

[0014] Furthermore, a tail beam is fixedly installed at the bottom rear side of the gooseneck, and lighting assemblies are provided at both ends of the tail beam.

[0015] By adopting the above technical solutions and setting up tail beams and lighting components, signals can be clearly transmitted when the vehicle is moving, turning, and braking, thereby improving the driving safety of the vehicle at night or in complex lighting environments.

[0016] Furthermore, two fixing plates are fixedly installed on both sides of the bottom of the rear gooseneck, and axles are fixedly installed on the two fixing plates. Wheels are provided at both ends of the axles.

[0017] By adopting the above technical solution, a fixing plate and axle are set up. The fixing plate increases the connection area between the axle and the rear gooseneck, dispersing the stress during vehicle driving and load-bearing, making the axle installation more secure and reliable.

[0018] Furthermore, two first ear hangers are fixedly installed on the front neck of the goose, and two second ear hangers are fixedly installed on the rear neck of the goose.

[0019] By adopting the above technical solution and setting up a first jack and a second jack, the vehicle can be lifted using the first jack and the second jack.

[0020] Furthermore, support leg assemblies are provided at both ends of the front side of the front circular tube beam.

[0021] By adopting the above technical solution, the support leg assembly can provide stable support for the front of the vehicle when the semi-trailer is disconnected from the tractor, preventing the vehicle from tilting or tipping over due to the front end being suspended in the air, and ensuring the stability and safety of the vehicle when loading and unloading tanks or parking.

[0022] In summary, this utility model has the following beneficial effects: In this application, by setting a support seat on the main support frame for placing the molten iron ladle and setting an installation ring in the middle of the rear gooseneck for placing the slag ladle, it is possible to place both the molten iron ladle and the slag ladle simultaneously, realizing the simultaneous transportation of the two substances, effectively reducing the investment in equipment on the production site and improving the transportation turnover efficiency; by installing support seats on the front crossbeam, the rear crossbeam, or the two side crossbeams through mounting hole groups, the two support seats can be installed on the front crossbeam, the rear crossbeam, or the two side crossbeams. In this way, the installation position of the support seats can be determined according to the needs of the workshop site, thereby adjusting the placement angle of the molten iron ladle to ensure that the gantry crane's lifting frame is parallel to the trunnion of the molten iron ladle, ensuring the stability of the molten iron ladle hoisting. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the bottom structure of an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the main support frame in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the support base according to an embodiment of the present utility model;

[0027] Figure 5This is a schematic diagram of the structure of the present invention with the molten iron ladle and slag ladle in place.

[0028] In the diagram: 10. Main support frame; 11. Front circular tube beam; 12. Rear circular tube beam; 13. Side crossbeam; 14. Front crossbeam; 15. Rear crossbeam; 20. Front gooseneck; 21. Traction pin; 22. First lug; 30. Rear gooseneck; 31. Mounting ring; 32. Protective plate; 33. Tail beam; 34. Lighting assembly; 35. Fixing plate; 36. Second lug; 41. Positioning pin hole; 42. Mounting hole; 50. Support base; 51. Base plate; 52. Top plate; 53. Vertical plate; 54. Positioning hole; 55. Connecting hole; 56. Limiting block; 57. Stopping block; 60. Stop block; 61. Locking screw; 70. Support leg assembly. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-5 As shown in the embodiment of this application, a transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles is disclosed. It includes a main support frame 10 and front gooseneck 20 and rear gooseneck 30 set at the front and rear ends of the main support frame 10. The bottom of the front gooseneck 20 is provided with a towing pin 21 for connecting with the tractor. The main support frame 10 is used to place molten iron ladles, and the rear gooseneck 30 is used to place slag ladles, so that molten iron ladles and slag ladles can be placed at the same time, realizing the simultaneous transport of the two materials, effectively reducing the investment in equipment on the production site and improving the transportation turnover efficiency.

[0031] The main support frame 10 includes a front circular tube beam 11 and a rear circular tube beam 12 arranged at intervals. The two ends of the front circular tube beam 11 and the rear circular tube beam 12 are connected by side crossbeams 13 to form an integral frame structure. A front crossbeam 14 and a rear crossbeam 15 are respectively installed inside the front circular tube beam 11 and the rear circular tube beam 12. Each of the front crossbeam 14, the rear crossbeam 15, and the two side crossbeams 13 has 42 sets of mounting holes. Support seats 50 are installed on the front crossbeam 14, the rear crossbeam 15, or the two side crossbeams 13 through the 42 sets of mounting holes. A ladle of molten iron is placed between the two support seats 50. This allows the two support seats 50 to be installed on the front crossbeam 14, the rear crossbeam 15, or the two side crossbeams 13. This allows the installation position of the support seats 50 to be determined according to the needs of the workshop site, thereby adjusting the placement angle of the ladle to ensure that the overhead crane's lifting frame is parallel to the trunnion of the ladle, ensuring stable lifting of the ladle. When the gantry crane is perpendicular to the vehicle body and the workshop is narrow, making it difficult for the semi-trailer to turn, the support base 50 can be fixed to the two side crossbeams 13 through the mounting holes 42. This ensures that the axis of the trunnion is perpendicular to the vehicle body axis when the molten iron ladle is placed, and the gantry crane's lifting frame is parallel to the trunnion axis of the molten iron ladle. The hook can then be directly hooked onto the trunnion of the molten iron ladle without twisting the sling, ensuring the stability of the lifting operation. When the gantry crane is parallel to the vehicle body and the workshop is narrow, making it difficult for the semi-trailer to turn, the support base 50 can be fixed to the front crossbeam 14 and the rear crossbeam 15 through the mounting holes 42. This ensures that the axis of the trunnion is parallel to the vehicle body axis when the molten iron ladle is placed, and the gantry crane's lifting frame is parallel to the trunnion axis of the molten iron ladle. The hook can then be directly hooked onto the trunnion of the molten iron ladle without twisting the sling, ensuring the stability of the lifting operation.

[0032] Specifically, the support base 50 includes a base plate 51 and a top plate 52, which are connected and supported by several vertical plates 53. These vertical plates 53 form a stable support frame between the base plate 51 and the top plate 52, evenly transferring the load borne by the top plate 52 to the base plate 51, significantly improving the overall load-bearing strength and deformation resistance of the support base 50. The base plate 51 has one positioning hole 54 and four connecting holes 55 arranged in a matrix. The mounting hole group 42 includes a centrally located positioning pin hole 41 and four mounting holes 42 arranged in a matrix. The positioning hole 54 and the positioning pin hole 41 are positioned by positioning pins, enabling rapid and accurate alignment of the base plate 51 of the support base 50 with the crossbeam, preventing misalignment during installation and significantly improving installation efficiency. The connection between the connecting hole 55 and the mounting hole 42 is made by bolts, which can fasten the base plate 51 of the support seat 50 to the crossbeam, enhancing the firmness and stability of the connection and preventing the support seat 50 from loosening or shifting during load-bearing or vehicle travel, thus further ensuring the safety of transporting and placing the molten iron ladle.

[0033] To further ensure the stability of the support base 50 installation, stop blocks 60 are respectively installed on the front crossbeam 14, rear crossbeam 15, and side crossbeam 13 at both ends of the support base 50. Two locking screws 61 are screwed diagonally downward on the stop block 60, and two stop blocks 57 are correspondingly installed at both ends of the base plate 51. The ends of the locking screws 61 abut against the stop blocks 57. Through the synergistic action of the two locking screws 61, a symmetrical and balanced locking force can be formed from both ends of the support base 50, firmly fixing the support base 50 to the crossbeam. This effectively prevents the support base 50 from lateral or longitudinal displacement due to vibration and inertia when the semi-trailer is driving, starting, stopping, or loading and unloading the tank. This significantly improves the overall stability of the connection between the support base 50 and the crossbeam, thereby ensuring the stability of the molten iron ladle.

[0034] To ensure the stability of the molten iron ladle, limit blocks 56 are installed at both ends of the top plate 52. The limit blocks 56 limit the outer wall of the molten iron ladle, preventing it from swaying back and forth or sideways due to inertia during transportation, thus further enhancing the overall stability of the molten iron ladle.

[0035] An installation ring 31 is provided in the middle of the rear gooseneck 30. The installation ring 31 is used to place the slag pot and is connected by bolts to facilitate the disassembly of the slag pot. Four protective plates 32 are arranged in a circle around the installation ring 31 on the rear gooseneck 30. The slag pot falls exactly into the area surrounded by the four protective plates 32 to prevent the slag pot from shaking.

[0036] A tail beam 33 is fixedly installed at the bottom rear side of the rear gooseneck 30. Light assemblies 34 are installed at both ends of the tail beam 33. These light assemblies 34 clearly transmit signals during vehicle movement, steering, and braking, improving driving safety at night or in complex lighting conditions. Two mounting plates 35 are fixedly installed on both sides of the bottom of the rear gooseneck 30. Axles are fixedly installed on the two mounting plates 35, and wheels are installed at both ends of the axles. The mounting plates 35 increase the connection area between the axles and the rear gooseneck 30, distributing stress during vehicle movement and load-bearing, making the axle installation more robust and reliable.

[0037] Two first lugs 22 are fixedly installed on the front gooseneck 20, and two second lugs 36 are fixedly installed on the rear gooseneck 30. The first lugs 22 and second lugs 36 can be used to lift the vehicle when needed. Support leg assemblies 70 are located at both ends of the front side of the front circular tube beam 11. The support leg assemblies 70 provide stable support to the front end of the vehicle when the semi-trailer is disengaged from the tractor, preventing the vehicle from tilting or tipping over due to the front end being suspended in the air, ensuring the stability and safety of the vehicle when loading / unloading tanks or parking. The support leg assemblies 70 can adopt the existing support structure of semi-trailers, which will not be elaborated upon here.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles, characterized in that: The system includes a main support frame (10) and front goosenecks (20) and rear goosenecks (30) located at the front and rear ends of the main support frame (10). The bottom of the front gooseneck (20) is provided with a traction pin (21) for connection with the front of the vehicle. The main support frame (10) includes a front circular tube beam (11) and a rear circular tube beam (12) arranged at intervals. The two ends of the front circular tube beam (11) and the rear circular tube beam (12) are connected by side crossbeams (13). The inner sides of the front circular tube beam (11) and the rear circular tube beam (12) are respectively provided with front crossbeams (14) and rear crossbeams (15). Mounting holes (42) are provided on the beam (14), the rear crossbeam (15) and the two side crossbeams (13). Supports (50) are installed on the front crossbeam (14), the rear crossbeam (15) or the two side crossbeams (13) through the mounting holes (42). The two support seats (50) are used to place molten iron ladles. An mounting ring (31) is provided in the middle of the rear gooseneck (30). The mounting ring (31) is used to place slag ladles and is connected by bolts. Four protective plates (32) are arranged in a circle around the mounting ring (31) of the rear gooseneck (30).

2. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles according to claim 1, characterized in that: The support base (50) includes a base plate (51) and a top plate (52). The base plate (51) and the top plate (52) are connected and supported by several vertical plates (53). The base plate (51) has a positioning hole (54) and four connecting holes (55) arranged in a matrix. The mounting hole (42) group includes a positioning pin hole (41) located in the middle and four mounting holes (42) arranged in a matrix. The positioning hole (54) and the positioning pin hole (41) are positioned by positioning pins. The connecting holes (55) and the mounting holes (42) are connected by bolts.

3. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles according to claim 2, characterized in that: Limiting blocks (56) are respectively provided at both ends of the top plate (52).

4. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles according to claim 2, characterized in that: The front crossbeam (14), rear crossbeam (15), and side crossbeam (13) are respectively provided with stop blocks (60) at both ends of the support base (50). Two locking screws (61) are screwed downwards on the stop blocks (60). Two stop blocks (57) are provided at both ends of the base plate (51). The ends of the locking screws (61) abut against the stop blocks (57).

5. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles according to claim 1, characterized in that: A tail beam (33) is fixedly installed at the bottom rear side of the rear gooseneck (30), and lighting assemblies (34) are provided at both ends of the tail beam (33).

6. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles according to claim 1, characterized in that: Two fixing plates (35) are fixedly installed on both sides of the bottom of the rear gooseneck (30), and axles are fixedly installed on the two fixing plates (35), with wheels at both ends of the axles.

7. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles according to claim 1, characterized in that: Two first ear hangers (22) are fixedly installed on the front goose neck (20), and two second ear hangers (36) are fixedly installed on the rear goose neck (30).

8. A transport semi-trailer with two loading and unloading methods for molten iron ladles and slag ladles according to claim 1, characterized in that: Support leg assemblies (70) are provided at both ends of the front circular tube beam (11).