A ladle transporting rail trolley

By setting limiters and synchronization components on the ladle transport rail trolley, the problem of traditional wheels derailing on small-radius curves is solved, enabling safe turning in confined spaces.

CN224941853UActive Publication Date: 2026-11-06SHIZUISHAN WANMING JULI MACHINERY MFG CO LTD
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Patent Information

Application Number
CN202522686026.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-18
Publication Date
2026-11-06
Estimated Expiration
2035-12-18

AI Technical Summary

Technical Problem

Traditional rail wheels cannot safely turn on rails with a curve radius of less than 600 meters, posing a risk of derailment.

Method used

Design a steel ladle transport rail trolley, which adopts a limiting part and a synchronization component. The limiting part is located on the inner traveling wheel of the curve and is driven by a power component. The inner wheel is restricted to the rail, and the outer wheel rotates synchronously under the drive of the synchronization component to achieve turning.

Benefits of technology

It enables safe turning on small-radius curves, preventing wheels from derailing, and is suitable for workshop environments with limited space.

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Abstract

This utility model belongs to the field of steel ladle transportation technology, specifically relating to a steel ladle transportation rail trolley; it includes: a car body assembly; wheel assemblies, wherein the wheel assemblies are provided in two sets, each set of wheel assemblies including two traveling wheels, and the two traveling wheels on the same side of the two sets of wheel assemblies are provided with limiting parts, the limiting parts enabling the traveling wheels to roll along the rail; a synchronization assembly, the synchronization assembly being provided on the two traveling wheels in the same set of wheel assemblies, for enabling the two traveling wheels to rotate synchronously in the horizontal direction; it enables the rail trolley with a small turning radius and small space to turn along the laid rail, avoiding the wheels of the rail trolley from derailing, and compared with the traditional rail wheels with the flange located on the inside, it can achieve the effect of traveling on rail curves with small turning radius, small space and short overall curve distance.
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Description

Technical Field

[0001] This utility model belongs to the field of steel ladle transportation technology, specifically relating to a steel ladle transportation rail trolley. Background Technology

[0002] During the transportation of molten steel ladles, railcars are used to transport the steel. These railcars move using steel rails laid on the ground. However, given the limited space in the workshop, the railcars need to make turns in small spaces and within a small area. Typically, the radius of the curves laid on the steel rails in the workshop is less than ten meters, mostly 6 or 8 meters. In other words, the railcars need to make turns in curves with a radius of less than ten meters.

[0003] However, traditional wheels that can travel on rails, such as train wheels, have a tapered tread design. They prevent derailment by contacting the rail with the wheel flange and use the difference in wheelset radii to guide turns. However, the minimum turning radius for ordinary passenger trains is 600 meters, while freight trains, due to their heavy loads, need more than 800 meters, and high-speed trains require even more, usually no less than 2200 meters. Therefore, when the turning radius is less than 600 meters, traditional wheels that travel on rails cannot turn. This is because when encountering a rail curve with a small radius, the short distance of the curve can easily cause one wheel to derail, posing a safety hazard. Utility Model Content

[0004] Based on this, this application provides a steel ladle transport rail trolley to solve the technical problem that trolleys using traditional steel rail wheels in the prior art cannot turn on steel rail curves with small curve radii.

[0005] The technical solution to the above-mentioned technical problems in this application is as follows: A steel ladle transport rail trolley, comprising: Vehicle body components; The wheel assembly has two sets arranged on the front and rear sides along the forward direction. Each set of the wheel assembly includes two traveling wheels. Limiting parts are provided on the two traveling wheels near the inner side of the curve in both sets of wheel assemblies. The limiting parts enable the traveling wheels to roll along the rail. A synchronization component, wherein the synchronization component is disposed on two of the traveling wheels in the same group of wheel assemblies, for causing the two traveling wheels to turn synchronously in the horizontal direction.

[0006] Preferably, it further includes a power assembly, which is disposed on the vehicle body assembly and connected to the wheel assembly for driving the wheels to rotate.

[0007] Preferably, it further includes a support assembly disposed on the vehicle body assembly for stably supporting the steel ladle.

[0008] Preferably, the vehicle body assembly includes a frame and a mounting bracket disposed on the frame, the power assembly is disposed on the mounting bracket, and two sets of wheel assemblies are disposed at the lower end of the frame, one in front of the other.

[0009] Preferably, the wheel assembly further includes a housing and a steering shaft disposed on the upper end of the housing, the steering shaft being rotatably connected to the lower end of the vehicle body assembly, and the driving wheel being rotatably connected to the housing.

[0010] Preferably, the power assembly includes a motor connected to the vehicle body assembly, a drive shaft connected to the motor output shaft, and a battery for supplying power to the motor, the drive shaft being connected to the wheels.

[0011] Preferably, the synchronization component includes a connecting rod, the two ends of which are rotatably connected to two of the housings in the same group of wheel assemblies.

[0012] Preferably, the support component includes two clamping plates symmetrically arranged on the vehicle body component, and a plurality of inclined plates circumferentially distributed on the vehicle body component with the two clamping plate symmetrical points as the centers, and the inclined surfaces of the inclined plates extend from top to bottom toward the two clamping plate symmetrical points.

[0013] Preferably, the limiting part includes a groove and force-bearing surfaces located on both sides of the groove, the groove contacts the rail, and the force-bearing surfaces contact the side of the rail from the side.

[0014] Preferably, the vehicle frame is provided with suspension hooks on both the front and rear sides.

[0015] Compared with the prior art, this application has at least the following advantages: This application provides a ladle transport rail trolley with a limiting part located at the lower end of the car body assembly on the inside of the curve. The traveling wheels can then move under the drive of a power source. The limiting part restricts the traveling wheels on this side to the rail, preventing them from detaching. Simultaneously, the traveling wheel with the limiting part rotates along the rail, while the traveling wheel on the other side (the outside of the curve) rotates accordingly under the drive of a synchronizing component, rolling along the rail on the outside of the curve. The traveling wheel on the inside of the curve turns under the drive of the limiting part. The car body assembly acts as an "axle" connecting the two traveling wheels, causing the traveling wheel on the rail on the outside of the curve to roll along the outer rail. At this time, the linear velocity of the outer traveling wheel is greater than that of the inner traveling wheel, completing the turning process along the curve. This allows the track trolley to turn along the laid rails with a small turning radius and in a small space, preventing the wheels of the track trolley from derailing. Compared with the wheels of traditional rails with the flanges located on the inside, it can achieve the effect of traveling on rail curves with small turning radii, small spaces, and short overall curve distances. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the steel ladle transport rail trolley of this application; Figure 2 This is a schematic diagram of the steel ladle transport rail trolley of this application; Figure 3 This is a schematic diagram of the supporting components of this application; Figure 4 This is a schematic diagram of the vehicle frame used in this application; Figure 5 This is a schematic diagram of the box body of this application; Figure 6 This is a schematic diagram of the wheels used in this application; Figure 7 This is a schematic diagram of the motor used in this application; Figure 8 This is a schematic diagram of the limiting part of this application; Figure 9 This is a schematic diagram of the contact between the traveling wheel and the rail in this application.

[0017] In the diagram: frame 110; mounting bracket 120; running wheel 210; box 220; steering shaft 230; groove 240; force-bearing surface 250; connecting rod 310; motor 410; drive shaft 420; battery 430; clamping plate 510; inclined plate 520. Detailed Implementation

[0018] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0019] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please refer to Figures 1 to 9 In one specific embodiment of this application, A steel ladle transport rail trolley, comprising: Vehicle body components; The wheel assembly has two sets arranged on the front and rear sides along the forward direction. Each set of the wheel assembly includes two traveling wheels 210. The two traveling wheels 210 near the inner side of the curve in both sets of wheel assemblies are provided with limiting parts. The limiting parts enable the traveling wheels 210 to roll along the rail. A synchronization component is provided on two of the traveling wheels 210 in the same group of wheel assemblies, for enabling the two traveling wheels 210 to turn synchronously in the horizontal direction.

[0022] The vehicle body assembly can be a frame, a structure, or other device or facility that can be used as a vehicle body. The limiting part can be a buckle, a wheel flange, or other device or facility that can restrict the travel wheels 210 to travel on the rails. The synchronization assembly can be an axle, a wheel shaft, or other device or facility that can drive the two travel wheels 210 to rotate simultaneously.

[0023] In practical applications, the ladle is mounted on the car body assembly, and the limiting part is located at the lower end of the car body assembly on the inside of the curve. Then, the traveling wheel 210 can move under the drive of a power source, such as a geared motor. At the curve, the limiting part restricts the traveling wheel 210 on that side to the rail, preventing it from detaching. Simultaneously, the traveling wheel 210 with the limiting part rotates along the rail, while the traveling wheel 210 on the other side (the outside of the curve) also rotates under the drive of the synchronizing assembly, rolling along the rail on the outside of the curve. In other words, when turning at this curve, the traveling wheel 210 on the inside of the curve... Driven by the limiting part, the traveling wheel 210 turns. The vehicle body assembly serves as the "axis" connecting the two traveling wheels 210, causing the traveling wheel 210 located on the outer rail of the curve to roll along the outer rail. Specifically, when turning, the inner traveling wheel 210 is used as the center, and the outer traveling wheel 210 moves in a circle around the center under the drive of the vehicle body assembly. During this process, as the center forms a moving trajectory along the inner rail of the curve, the corresponding outer traveling wheel 210 rolls along the arc of the outer rail of the curve. At this time, the forward speed of the outer traveling wheel 210 is greater than that of the inner traveling wheel 210, thus completing the turning process along the curve of the rail.

[0024] The above method enables a railcar with a small turning radius and limited space to turn along the laid rails, preventing the wheels of the railcar from derailing. Compared with the wheels of traditional rails with the flanges located on the inside, it can achieve the effect of traveling on rail curves with small turning radii, limited space, and short overall curve distance.

[0025] Specifically, an embodiment of the aforementioned limiting part is provided: The limiting part includes a groove 240 and force-bearing surfaces 250 located on both sides of the groove 240. The groove 240 contacts the rail, and the force-bearing surfaces 250 contact the side of the rail from the side.

[0026] See Figure 6 and Figure 8 As shown, the traveling wheel 210 located on the inner side of the rail curve has a groove 240. When the traveling wheel 210 contacts the rail, the bottom of the groove 240 contacts the rail, and the two force-bearing surfaces 250 on both sides contact the sides of the rail. When the traveling wheel 210 rolls, the two force-bearing surfaces 250 contact the sides of the rail, causing the traveling wheel 210 to rotate and travel along the curve of the rail. At the same time, the two force-bearing surfaces 250 restrict the traveling wheel 210 from the inner and outer sides of the curve, respectively, to prevent the traveling wheel from leaving the rail. The force-bearing surfaces 250 contact the sides of the rail at two points, such as... Figure 9 As shown, G represents a curve in the rails, G1 is the rail on the inside of the curve, and G2 is the rail on the outside of the curve. The contact points between the force-bearing surface 250 and the inside of the rails are A and B. The steering of the inner traveling wheel 210 is controlled by the constraints of A and B. The vehicle body assembly connects the two traveling wheels 210 together, which can be considered as an "axle." When the direction of the "axle" is not aligned with the center of the curve, the contact point A on the forward side of the travel gear will press against the inside of the rail. At this time, the inner traveling wheel 210 cannot continue to move forward and will only slip under the drive of the power source until the "axle" moves to the other side. When the outer travel wheel 210 rolls to the corresponding position on the outer rail and the "axis" is aligned with the center, the contact point A can continue to offset along the inner side of the rail. At this time, the outer travel wheel 210 will roll quickly along the outer rail of the curve using the vehicle body assembly. During the process of the outer travel wheel 210 rolling to the corresponding position, the inner travel wheel 210 will slip with the rail, thereby reducing the arc distance traveled by the inner travel wheel 210. This forms a turning pattern in which the outer travel wheel 210 moves faster and the inner travel wheel 210 moves slower, thus completing the turn.

[0027] Furthermore, in traditional methods, most railcars transporting steel ladles are pulled along the rails by winches. While this method allows for power input, the winch's traction rope not only needs to be set along the rails but also occupies space, causing interference with other objects and other mobile equipment in the workshop, which is extremely inconvenient. Therefore, in this application: It also includes a power assembly, which is disposed on the vehicle body assembly and connected to the wheel assembly for driving the walking wheels 210 to rotate.

[0028] The power component can be a drive motor, a geared motor, an engine, or other devices and facilities capable of driving the traveling wheels 210 to rotate. In application, the power component is directly connected to the vehicle body assembly, so that the power source (power component) that drives the traveling wheels 210 to move can be integrated with the vehicle body assembly to form a self-powered railcar. This eliminates the need for a winch to use a traction rope to pull the railcar, allowing the railcar to move automatically with its own power source.

[0029] Specifically, an embodiment of the power component in the above process is provided: The power assembly includes a motor 410 connected to the vehicle body assembly, a drive shaft 420 connected to the output shaft of the motor 410, and a battery 430 for supplying power to the motor 410. The drive shaft 420 is connected to the driving wheel 210.

[0030] The motor 410 can be bolted to the frame 110, and then the output shaft of the motor 410 is connected to the walking wheel 210 through a coupling. In this case, the rotation shaft of the walking wheel 210 extends out of the box 220, and the battery 430 can be directly placed in the mounting bracket 120 for carrying. When in use, by starting the motor 410, the output shaft of the motor 410 drives the walking wheel 210 to rotate, so that the walking wheel 210 can roll on the rail and complete autonomous walking.

[0031] Additionally, a steel ladle is a container used in metallurgical engineering to transport and pour molten metal. When it is moved on a railcar, it is prone to swaying due to inertia as speed changes and turns occur. Therefore, in order to stably support the steel ladle and prevent it from swaying during transportation, this application also includes a support assembly, which is disposed on the vehicle body assembly and used to stably support the steel ladle.

[0032] The support components can be support frames, clamps, or other devices and facilities that can stably support the steel ladle. When hoisting the steel ladle onto the rail trolley, the steel ladle can be placed on the support components, which provide stable support and prevent the steel ladle from swaying during the movement of the rail trolley, thus making the steel ladle more stably mounted on the rail trolley.

[0033] Specifically, an embodiment of the supporting components in the above process is provided here: The support assembly includes two clamping plates 510 symmetrically arranged on the vehicle body assembly, and a plurality of inclined plates 520 circumferentially distributed on the vehicle body assembly with the symmetrical points of the two clamping plates 510 as the centers, and the inclined surfaces of the inclined plates 520 extend from top to bottom toward the symmetrical points of the two clamping plates 510.

[0034] Two clamping plates 510 are used to clamp and support the two opposing cylinders on the outer wall of the ladle, thereby setting the ladle on the rail trolley. At the same time, the bottom of the outer wall of the ladle is guided by the inclined surfaces of several inclined plates 520, which support the bottom of the ladle and keep the axis of the ladle at the symmetrical point of the two clamping plates 510, so that the ladle is kept in a vertical state to complete the erection.

[0035] By using the above methods, the steel ladle can be more stably mounted on the rail trolley during transportation, avoiding the steel ladle from shaking due to lack of stable support and restraint, thus preventing safety hazards.

[0036] Specifically, an embodiment of the vehicle body components in the above process is provided: The vehicle body assembly includes a frame 110 and a mounting bracket 120 disposed on the frame 110. The power assembly is disposed on the mounting bracket 120, and two sets of wheel assemblies are disposed at the lower end of the frame 110.

[0037] By connecting the wheel assembly to the front and rear sides of the frame 110 in the forward direction and installing the power assembly in the mounting frame 120, the frame 110 can move together with the traveling wheels 210 in the wheel assembly when they travel on the track, thus completing the transportation process of the steel ladle.

[0038] Specifically, an embodiment of the wheel assembly in the above process is provided: The wheel assembly also includes a housing 220 and a steering shaft 230 disposed on the upper end of the housing 220. The steering shaft 230 is rotatably connected to the lower end of the vehicle body assembly, and the driving wheel 210 is rotatably connected to the housing 220.

[0039] By rotatably connecting the steering shaft 230 to the lower end of the frame 110, the steering shaft 230 can drive the box body 220 to rotate in the horizontal direction. At the same time, when the traveling wheel 210 is in contact with the rail and moves to the curve, when the limiting part drives the traveling wheel 210 to turn along the track, the box body 220 will rotate at the lower end of the frame 110 under the action of the steering shaft 230, thereby enabling the traveling wheel 210 to complete the turning.

[0040] Specifically, an embodiment of the synchronization component in the above process is provided: The synchronization component includes a connecting rod 310, with both ends of the connecting rod 310 rotatably connected to two of the housings 220 in the same group of wheel assemblies.

[0041] When the traveling wheel 210 on the inner rail of the curve turns under the guidance of the limiting part, the connecting rod 310 can be used to pull the box 220 on the outer rail of the curve on the other side to rotate, so that the traveling wheel 210 inside the box 220 turns with the box 220. This achieves the effect of synchronous turning of the traveling wheels 210 in the same set of wheel assemblies when turning on the curve, so that the traveling wheels can travel along the curved rail.

[0042] Furthermore, the frame is equipped with suspension hooks on both the front and rear sides. These suspension hooks can be suspension calipers, tow hooks, or other devices and facilities capable of suspending objects. In practical applications, the suspension hooks can be used to connect multiple railcars (frames 110) to form a small "train" for transporting steel ladles, thereby increasing the amount of steel ladles transported in a single trip.

[0043] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A steel ladle transport rail trolley, characterized in that, include: Vehicle body components; The wheel assembly has two sets arranged on the front and rear sides along the forward direction. Each set of the wheel assembly includes two traveling wheels. Limiting parts are provided on the two traveling wheels near the inner side of the curve in both sets of wheel assemblies. The limiting parts enable the traveling wheels to roll along the rail. A synchronization component, wherein the synchronization component is disposed on two of the traveling wheels in the same group of wheel assemblies, for causing the two traveling wheels to turn synchronously in the horizontal direction.

2. The ladle transport rail trolley as described in claim 1, characterized in that, It also includes a power assembly, which is disposed on the vehicle body assembly and connected to the wheel assembly for driving the wheels to rotate.

3. The ladle transport rail trolley as described in claim 1, characterized in that, It also includes a support assembly, which is disposed on the vehicle body assembly and is used to stably support the steel ladle.

4. The ladle transport rail trolley as described in claim 2, characterized in that, The vehicle body assembly includes a frame and a mounting bracket disposed on the frame. The power assembly is disposed on the mounting bracket, and two sets of wheel assemblies are disposed at the lower end of the frame, one in front of the other.

5. The ladle transport rail trolley as described in claim 2, characterized in that, The wheel assembly also includes a housing and a steering shaft disposed on the upper end of the housing. The steering shaft is rotatably connected to the lower end of the vehicle body assembly, and the driving wheels are rotatably connected to the housing.

6. The ladle transport rail trolley as described in claim 2, characterized in that, The power assembly includes a motor connected to the vehicle body assembly, a drive shaft connected to the motor output shaft, and a battery for supplying power to the motor. The drive shaft is connected to the wheels.

7. The ladle transport rail trolley as described in claim 5, characterized in that, The synchronization component includes a connecting rod, the two ends of which are rotatably connected to two of the housings in the same group of wheel assemblies.

8. The ladle transport rail trolley as described in claim 3, characterized in that, The support assembly includes two clamping plates symmetrically arranged on the vehicle body assembly, and a number of inclined plates circumferentially distributed on the vehicle body assembly with the symmetrical points of the two clamping plates as the centers, and the inclined surfaces of the inclined plates extend from top to bottom toward the symmetrical points of the two clamping plates.

9. The ladle transport rail trolley as described in claim 1, characterized in that, The limiting part includes a groove and force-bearing surfaces located on both sides of the groove. The groove contacts the rail, and the force-bearing surfaces contact the side of the rail from the side.

10. The ladle transport rail trolley as described in claim 4, characterized in that, The vehicle frame is equipped with suspension hooks on both the front and rear sides.