Anti-toppling device for replacing wheels of bridge crane

Abstract

The utility model belongs to the field of bridge crane maintenance tools. The utility model provides an anti-toppling device for replacing wheels of a bridge crane. The anti-toppling device for replacing the wheels of the bridge crane comprises a frame and a pair of wheel supporting mechanisms, the frame comprises a cross beam and two longitudinal beams connected to the two ends of the cross beam, and a walking mechanism is arranged below each longitudinal beam. The pair of wheel supporting mechanisms are installed on the two longitudinal beams correspondingly, each wheel supporting mechanism comprises a height adjusting assembly and a wheel bracket, the height adjusting assemblies are installed on the longitudinal beams, the wheel brackets are installed on the tops of the height adjusting assemblies, and the height adjusting assemblies can adjust the distance between the wheel brackets and the longitudinal beams. The wheel bracket has a shape matching a portion of the crane wheel to be supported. The device solves the problems of wheel toppling and falling in the wheel replacement process in the prior art, ensures the life and property safety of people, improves the working efficiency, and is remarkable in economic benefit and social benefit.

Description

Technical Field

[0001] The utility model relates to a large bridge crane maintenance tool, in particular to an anti-dumping device used for replacing wheels of the bridge crane. Background Art

[0002] Bridge cranes are widely used in major heavy industry enterprises. They undertake the lifting and transportation of large materials. They are the transportation hub of enterprise logistics and are indispensable equipment in production activities. Take the large bridge cranes in steel mills as an example. These bridge cranes are responsible for the logistics of all molten iron, molten steel and auxiliary materials in steel mills. Cranes are used frequently and have heavy loads. In particular, the wheels of cranes have to bear not only the weight of materials, but also the weight of the crane itself. For a 360-ton crane, the weight of the crane and the materials is as high as 1,000 tons. Therefore, the wheels of cranes are worn and damaged a lot and need to be replaced frequently.

[0003] The wheels of the crane can be divided into active and passive wheels. A handle is installed on the transmission side of the active wheel, and there is a center of gravity offset with the wheel as the center. The wheels are designed as single wheels or double wheels (also called wheel groups). When replacing the wheels, the crane needs to be lifted up, the fixing bolts need to be removed, and the wheels or wheel groups need to be rolled along the track to a position where they can be lifted, and then they need to be lifted by hand winches or truck cranes. The operation sequence is reversed when the wheels are reinstalled. Because the wheels are heavy (about 1 ton) and have a high center of gravity, there is a problem of tipping over when the wheels roll along the track. In the past, in order to prevent the wheels from tipping over, wire ropes were passed through the holes of the spokes on the wheels, and hand winches were hung on them to cooperate with manpower for support. In this method, when the wheels roll, the wire rope hanging point will roll down with the wheels. When it reaches the lowest point, the wire rope must be removed and hung on a high point and then continue to roll, and so on. This solution is not only cumbersome to operate, but also the hanging point will move to a low point when the wheels roll, and the support effect is poor. In addition, there is a gap in protective measures when taking the wire rope, which poses a safety risk of tipping or falling. The method of using the wire rope with human support is only effective when it is in a fixed position, but it is not effective when the wheels are rolling along the track, and it is easy to tilt and squeeze the operator, causing an accident.

[0004] Therefore, it is necessary to study an anti-dumping device that can hold a wheel or a wheel group to make it roll along the crane track, so as to solve the personal injury accidents or property losses caused by dumping or falling during wheel replacement. Utility Model Content

[0005] The main purpose of the utility model is to provide an anti-dumping device for replacing wheels of a bridge crane, so as to solve the problem of wheel dumping and falling during wheel replacement in the prior art.

[0006] According to one aspect of the utility model, there is provided an anti-dumping device for replacing wheels of a bridge crane, comprising:

[0007] A vehicle frame, the vehicle frame comprising a crossbeam and two longitudinal beams connected at both ends of the crossbeam, and a walking mechanism is provided under each of the longitudinal beams;

[0008] A pair of wheel support mechanisms, the pair of wheel support mechanisms are respectively installed on the two longitudinal beams, each of the wheel support mechanisms includes a height adjustment component and a wheel bracket, the height adjustment component is installed on the longitudinal beam, the wheel bracket is installed on the top of the height adjustment component, the height adjustment component can adjust the distance between the wheel bracket and the longitudinal beam, and the wheel bracket has a shape matching the part to be supported of the crane wheel.

[0009] According to an embodiment of the utility model, the height adjustment component is a mechanical jack.

[0010] According to an embodiment of the utility model, the mechanical jack is a scissor jack.

[0011] According to an embodiment of the utility model, the frame further includes two vertical beams, the vertical beams are connected between the cross beam and the longitudinal beam, and the three vertical beams are perpendicular to each other.

[0012] According to an embodiment of the present invention, the top ends of the two vertical beams are respectively connected to the two ends of the horizontal beam, and the bottom ends of the two vertical beams are respectively connected to one end of the two longitudinal beams.

[0013] According to one embodiment of the utility model, the height adjustment assembly also includes two operating hand wheels, the operating hand wheels and the scissors jack are distributed on both sides of the vertical beam, the operating hand wheels are connected to a transmission connecting rod, and the transmission connecting rod passes through the vertical beam and is connected to a screw of the scissors jack.

[0014] According to an embodiment of the utility model, the transmission connecting rod and the screw rod are connected by a universal joint.

[0015] According to an embodiment of the utility model, the length of the vertical beam is such that the cross beam is located above the crane track when the frame is in use.

[0016] According to an embodiment of the present invention, the wheel bracket can be detachably assembled on the top of the height adjustment assembly.

[0017] According to one embodiment of the utility model, the wheel bracket is an arc-shaped bracket that matches the shape of the bearing seat of the wheel to be supported; or the wheel bracket is a trapezoidal bracket that matches the shape of the trapezoidal protrusion in the middle of the balance frame of the wheel group to be supported.

[0018] Due to the adoption of the above technical scheme, the anti-dumping device for replacing the wheel of a bridge crane according to the utility model is designed to support the wheel from both sides of the wheel, and the height adjustment components on both sides can independently adjust the height according to the structures on both sides of the wheel. When the wheel rolls on the crane track, the wheel can be stably supported on the track so that it can roll along the track and cannot tip over to both sides. The anti-dumping device for replacing the wheel of a bridge crane according to the utility model has a simple structure, is easy to manufacture and use, is safe and practical, and has a unique structure. It reduces the risk of the wheel rolling, tipping and falling on the crane track during the wheel replacement process, ensures the safety of people's lives and property, improves work efficiency, and has significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 A schematic structural diagram of an anti-dumping device for replacing wheels of a bridge crane according to an embodiment of the utility model is shown;

[0021] Figure 2 Shows Figure 1 A front view of an anti-tipping device for replacing wheels of a bridge crane;

[0022] Figure 3 Shows Figure 1 A side view of an anti-tipping device for replacing wheels of an overhead crane;

[0023] Figure 4 Shows Figure 1 A top view of an anti-tipping device for replacing wheels of a bridge crane;

[0024] Figure 5 Shows Figure 1 The diagram of the use status of the anti-tipping device for replacing the wheel of the bridge crane;

[0025] Figure 6 A schematic structural diagram of an anti-dumping device for replacing wheels of a bridge crane according to another embodiment of the utility model is shown;

[0026] Figure 7 Shows Figure 6 A front view of an anti-tipping device for replacing wheels of a bridge crane;

[0027] Figure 8 Shows Figure 6 A side view of an anti-tipping device for replacing wheels of an overhead crane;

[0028] Fig. 9 Shows Figure 6 A top view of an anti-tipping device for replacing wheels of a bridge crane;

[0029] Fig.10 Shows Figure 6 Diagram showing the usage status of the anti-tipping device for replacing wheels of a bridge crane.

[0030] Description of Reference Numerals

[0031] 10. Frame; 11. Crossbeam; 12. Longitudinal beam; 13. Traveling mechanism; 14. Vertical beam; 20. Wheel supporting mechanism; 21. Height adjustment assembly; 21a. Handwheel; 21b. Transmission connecting rod; 22. Wheel bracket; W. Crane wheel; R. Crane track; B. Balance frame. DETAILED DESCRIPTION

[0032] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0033] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0034] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0035] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0036] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] One purpose of the utility model is to provide an anti-dumping device for replacing the wheels of a bridge crane, so as to solve the problems of personal injury accidents or property losses caused by the tipping and falling of wheels during the replacement of the wheels of a bridge crane in the prior art. The anti-dumping device for replacing the wheels of a bridge crane generally includes a frame and a pair of wheel support mechanisms installed on the frame. The frame includes a crossbeam and two longitudinal beams connected at both ends of the crossbeam, and a walking mechanism is provided under each longitudinal beam. A pair of wheel support mechanisms are respectively installed on the two longitudinal beams, and each wheel support mechanism includes a height adjustment assembly and a wheel bracket, the height adjustment assembly is installed on the longitudinal beam, and the wheel bracket is installed on the top of the height adjustment assembly, and the height adjustment assembly can adjust the distance between the wheel bracket and the longitudinal beam, and the wheel bracket has a shape that matches the part to be supported of the crane wheel.

[0038] When using the anti-tipping device, the crossbeam of the device is placed across the crane track so that the two longitudinal beams are located on both sides of the crane track respectively. The frame is pushed to move under the crane wheel to be replaced, and the height adjustment components on both sides are operated respectively so that the wheel brackets on both sides are matched with the fixed positions on both sides of the wheel respectively. The crane wheel is placed between the two wheel brackets and the wheel is supported on the crane track to stabilize the wheel. Finally, manpower is used to push the frame to drive the wheel to roll along the track while the wheel brackets on both sides are used to support the wheel to prevent the wheel from tipping over and falling.

[0039] Figure 1 The figure shows a schematic structural diagram of an anti-dumping device for replacing wheels of a bridge crane according to an embodiment of the utility model. Figure 2 shows a front view of the anti-tipping device, Figure 3 shows a side view of the anti-tipping device, Figure 4 shows a top view of the anti-tipping device, Figure 5 The following figure shows the use state of the anti-dumping device. Figure 1-5 The structure of an anti-dumping device for replacing wheels of a bridge crane according to an embodiment of the utility model is described by way of example.

[0040] like Figure 1-5 As shown, the anti-dumping device for replacing wheels of a bridge crane generally comprises a frame 10 and a pair of wheel supporting mechanisms 20 .

[0041] The frame 10 is used to stably erect the wheel support mechanism 20 above the track and drive the wheels to travel. To this end, the frame 10 may include a crossbeam 11 and two longitudinal beams 12 connected to the two ends of the crossbeam 11. In order to improve the stability of the frame, the frame 10 may also include two vertical beams 14. The two ends of the crossbeam 11 are respectively connected to the top ends of the two vertical beams 14, and the bottom ends of the two vertical beams 14 are respectively connected to one end of the two longitudinal beams 12. The crossbeam 11, the longitudinal beam 12 and the vertical beam 14 are arranged vertically to each other. This arrangement makes the height of the longitudinal beam 12 lower, thereby making the center of gravity of other structures installed on the longitudinal beam 12 lower, thereby improving the stability of the entire device. The frame 10 can be made of high-strength square steel, and the length of the crossbeam 11 is determined according to the distance between the positions where the wheel group or the two sides of the wheel are supported. The length of the longitudinal beam 12 is determined according to the diameter of the wheel group or the wheel, and its length is set so that when the wheel group or the wheel is supported on the frame 10, the operator still has enough space to push the crossbeam 11. The length of the vertical beam 14 is determined according to the height of the crane rail, and the length of the vertical beam 14 is set so that the cross beam 11 connected to the top of the vertical beam 14 can span over the upper surface of the crane rail.

[0042] A running mechanism 13 is provided below each longitudinal beam 12. Figure 1-5 As shown, in this embodiment, the walking mechanism 13 is a roller, and two rollers are provided under each longitudinal beam 12 , and the two rollers are respectively arranged at positions close to the two ends of the longitudinal beam 12 .

[0043] A pair of wheel support mechanisms 20 are respectively mounted on the two longitudinal beams 12, and the two wheel support mechanisms 20 are equidistant from the cross beam 11. The structures of the wheel support mechanisms 20 on both sides are similar, and the structure of the wheel support mechanism 20 on one side is only described below as an example. The wheel support mechanism 20 may include a height adjustment component 21 and a wheel bracket 22.

[0044] The height adjustment assembly 21 can adjust the distance between the wheel bracket 22 and the longitudinal beam 12. The height adjustment assembly 21 can be installed above the longitudinal beam 12, and it can be installed near one end of the longitudinal beam 12 away from the cross beam 11, for example, near the roller installed at this end (the longitudinal distance between the two can be about 50mm). The wheel support mechanism 20 is arranged at this position. On the one hand, it can ensure that the weight of the crane wheel is transferred to the roller as much as possible, reducing the load applied to the frame 10, and on the other hand, it can prevent the frame 10 from tilting and increase stability. The height adjustment assembly 21 can specifically adopt a jack, such as a hydraulic jack or a mechanical jack. Optionally, in one embodiment, the mechanical jack is a scissor jack. The scissor jack generally includes a base, a top support member and four support arms. The four support arms are arranged in pairs on the left and right sides of the base and the top support member, and the two support arms and the support arms and the base or the top support member are hingedly connected. A nut assembly is provided at the hinged bend of one set of support arms. The screw extends through the nut assembly and forms a spiral transmission with the nut assembly. The end of the screw crosses the area surrounded by the four support arms and extends to the hinged bend of another set of support arms and the end is rotatably held there. When the operating screw rotates, the nut assembly and the support arms connected to the nut assembly change the bending angle of each set of support arms under the action of the spiral transmission, and change the height of the top support. The scissor jack has the advantages of stability, reliability, and large load-bearing capacity.

[0045] Optionally, the height adjustment assembly 21 may further include two operating hand wheels 21a, and the operating hand wheels 21a and the scissor jack are distributed on both sides of the vertical beam 14. The operating hand wheel 21a is connected to a transmission connecting rod 21b, and the transmission connecting rod 21b passes through the vertical beam 14 and is connected to a screw rod of the scissor jack. For example, the transmission connecting rod 21b and the screw rod may be connected by a universal joint.

[0046] The wheel bracket 22 is used to dock with the corresponding part of the crane wheel to stably support the wheel. The wheel bracket 22 can be assembled and disassembled on the top of the height adjustment component 21, and the wheel bracket 22 has a shape that matches the part to be supported of the crane wheel. Figure 1-5 In the embodiment shown, the wheel bracket 22 is an arc-shaped bracket that matches the shape of the bearing seat of the wheel to be supported. The arc-shaped bracket is suitable for the disassembly, assembly and transportation of a single wheel of a crane. Figure 5As shown, when the anti-dumping device is in use, the crossbeam 11 of the device is placed across the crane track R, so that the two longitudinal beams 12 are respectively located on both sides of the crane track R, and the frame 10 is pushed to move under the crane wheel W to be replaced, and the height adjustment components 21 on both sides are operated respectively to make the wheel brackets 22 on both sides cooperate with the bearing seats on both sides of the wheel W respectively, and the crane wheel W is placed between the two wheel brackets 22 and supported on the crane track R, so as to stabilize the wheel W, and finally use manpower to push the frame 10 to drive the wheel W to roll along the track, while using the wheel brackets 22 on both sides to support the wheel W to prevent the wheel W from tipping over and falling.

[0047] Figure 6 The figure shows a schematic structural diagram of an anti-dumping device for replacing wheels of a bridge crane according to another embodiment of the utility model. Figure 7 shows a front view of the anti-tipping device, Figure 8 shows a side view of the anti-tipping device, Fig. 9 shows a top view of the anti-tipping device, Fig.10 The figure shows the use state of the anti-dumping device.

[0048] Figure 6-10 The anti-tipping device for replacing the wheel of the bridge crane shown includes Figure 1-5 The anti-dumping device in this embodiment is similar to the frame 10 and the height adjustment assembly 21 of the device shown in the figure. Figure 1-5 The arrangement shown differs mainly in the design of the wheel carrier 22 .

[0049] Figure 6-10 The anti-tipping device for wheel replacement of a bridge crane is used to transport the wheel set. Fig.10 As shown, the wheel set includes two wheels arranged side by side and a balance frame B located on the outside of the wheels to fix the two wheels. A trapezoidal protrusion is provided in the lower middle part of the balance frame B. In order to prevent the frame 10 from tilting due to imbalance, the wheel bracket 22 is made into a trapezoidal disc that matches the shape of the trapezoidal protrusion of the balance frame B. The trapezoidal protrusion in the middle of the balance frame B can be inserted into the trapezoidal disc.

[0050] like Fig.10 As shown, when the anti-dumping device is in use, the crossbeam 11 of the device is placed across the crane track R, so that the two longitudinal beams 12 are respectively located on both sides of the crane track R, and the frame 10 is pushed to move under the crane wheel W to be replaced, and the height adjustment components 21 on both sides are respectively operated to make the wheel brackets 22 on both sides cooperate with the trapezoidal protrusions of the balance frame B on both sides of the wheel, and the crane wheel W is placed between the two wheel brackets 22 and supported on the crane track R, so as to stabilize the wheel W. Finally, the frame 10 is pushed by manpower to drive the wheel W to roll along the track R, and the wheel brackets 22 on both sides are used to support the wheel W to prevent the wheel W from tipping over and falling.

[0051] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0052] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0053] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An anti-dumping device for replacing wheels of a bridge crane, characterized in that: include: A vehicle frame (10), the vehicle frame (10) comprising a crossbeam (11) and two longitudinal beams (12) connected to both ends of the crossbeam (11), and a walking mechanism (13) is provided below each of the longitudinal beams (12); A pair of wheel support mechanisms (20), wherein the pair of wheel support mechanisms (20) are respectively mounted on the two longitudinal beams (12), each of the wheel support mechanisms (20) comprises a height adjustment component (21) and a wheel bracket (22), wherein the height adjustment component (21) is mounted on the longitudinal beam (12), and the wheel bracket (22) is mounted on the top of the height adjustment component (21), wherein the height adjustment component (21) is capable of adjusting the distance between the wheel bracket (22) and the longitudinal beam (12), and wherein the wheel bracket (22) has a shape matching the portion to be supported of the crane wheel.

2. The anti-dumping device for replacing wheels of a bridge crane according to claim 1, characterized in that: The height adjustment component (21) is a mechanical jack.

3. The anti-dumping device for replacing wheels of a bridge crane according to claim 2, characterized in that: The mechanical jack is a scissor jack.

4. The anti-dumping device for replacing wheels of a bridge crane according to claim 3, characterized in that: The vehicle frame (10) further comprises two vertical beams (14), wherein the vertical beams (14) are connected between the cross beam (11) and the longitudinal beam (12), and the three beams are perpendicular to each other.

5. The anti-dumping device for replacing wheels of a bridge crane according to claim 4, characterized in that: The top ends of the two vertical beams (14) are respectively connected to the two ends of the horizontal beam (11), and the bottom ends of the two vertical beams (14) are respectively connected to one end of the two longitudinal beams (12).

6. The anti-dumping device for replacing wheels of a bridge crane according to claim 4, characterized in that: The height adjustment assembly (21) further comprises two operating hand wheels (21a), wherein the operating hand wheels (21a) and the scissor jack are distributed on both sides of the vertical beam (14), and the operating hand wheels (21a) are connected to a transmission connecting rod (21b), and the transmission connecting rod (21b) passes through the vertical beam (14) and is connected to a screw rod of the scissor jack.

7. The anti-dumping device for replacing wheels of a bridge crane according to claim 6, characterized in that: The transmission connecting rod (21b) and the screw rod are connected by a universal joint.

8. The anti-dumping device for replacing wheels of a bridge crane according to claim 4, characterized in that: The length of the vertical beam (14) is such that the cross beam (11) is located above the crane track when the frame is in use.

9. The anti-dumping device for replacing wheels of a bridge crane according to claim 4, characterized in that: The wheel bracket (22) is detachably assembled on the top of the height adjustment assembly (21).

10. The anti-dumping device for replacing wheels of a bridge crane according to claim 9, characterized in that: The wheel bracket (22) is an arc-shaped bracket that matches the shape of the bearing seat of the wheel to be supported; or the wheel bracket (22) is a trapezoidal bracket that matches the shape of the trapezoidal protrusion in the middle of the wheel group balance frame to be supported.

Images