A crane anti-derailing running wheel set

By incorporating rack and pinion meshing design and limiting grooves on both sides of the crane rail, the problem of wheel derailment was solved, thus achieving stable operation and safety of the crane.

CN224411228UActive Publication Date: 2026-06-26HENAN AOLAIDA HOISTING MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN AOLAIDA HOISTING MACHINERY CO LTD
Filing Date
2025-08-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

During operation, imbalances can cause the traveling wheels of a crane to deviate from their tracks, leading to equipment malfunctions and safety hazards.

Method used

The design employs racks on both sides of the track that mesh with driving and driven gears. A drive motor moves the gears along the racks, and a limiting groove limits the movement of the wheels to prevent deviation.

Benefits of technology

It effectively prevents the traveling wheels from derailing, ensures stable operation of the crane, and avoids equipment downtime and safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224411228U_ABST
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Abstract

The utility model is specifically related to a crane anti-derailing walking wheel set, including the track of I -shaped, the track is driven to have walking wheel set, walking wheel set includes two side plates of symmetrical setting track both sides, the both sides of vertical part of track are fixedly connected with the rack of vertical setting, the side of one rack is engaged with driving gear, the side of another rack is engaged with driven gear, driving gear is installed on the gear shaft of vertical setting, gear shaft is driven through drive motor, drive motor is fixedly installed outside the side plate, the outside fixed connection of side plate has drive motor, two side plates all are installed with two interval settings horizontal shaft, walking wheel is rotatably connected on horizontal shaft, the wheel surface of walking wheel is connected with the top surface of the bottom plate of track.
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Description

Technical Field

[0001] This utility model relates to the field of cranes, specifically to a crane anti-derailment traveling wheel set. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It saves a lot of manpower and material resources and is widely used in construction, industrial production, urban construction, coal mining and other fields. The trolley mechanism of the crane drives the lifting mechanism to move.

[0003] The trolley traveling mechanism of a single-girder suspended crane adopts an under-suspension rail load-bearing design, with its traveling wheels guided by the engagement of the wheel flanges with the lower flange of the I-beam rail. When the crane is in operation, factors such as unbalanced operation can cause the trolley's traveling wheels to deviate. When the deviation exceeds the allowable threshold for the lateral clearance between the wheel flange and the rail, mechanical failures such as the traveling wheels detaching from the rail are highly likely. This phenomenon not only causes equipment downtime for maintenance but may also lead to significant safety hazards such as falling loads. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a crane anti-derailment traveling wheel set.

[0005] The technical solution of this utility model is implemented as follows: A crane anti-derailment traveling wheel set includes an I-shaped track, on which a traveling wheel set travels. The traveling wheel set includes two side plates symmetrically arranged on both sides of the track. Vertical racks are fixedly connected to both sides of the vertical part of the track. One rack has a driving gear meshing on its side, and the other rack has a driven gear meshing on its side. The driving gear is mounted on a vertically arranged gear shaft, which is driven by a drive motor. The drive motor is fixedly mounted on the outside of the side plate, and the drive motor is fixedly connected to the outside of the side plate. Two horizontal shafts are installed on each of the two side plates at intervals. Traveling wheels are rotatably connected to the horizontal shafts, and the wheel surfaces of the traveling wheels are in contact with the top surface of the bottom plate of the track.

[0006] The drive motor is horizontally mounted on the outside of the side plate, and the reversing housing is installed on the inside of the side plate. The drive motor shaft extends horizontally through the side plate into the reversing housing. A bevel gear one is fixedly connected to the drive motor shaft, and bevel gear one meshes with bevel gear two. The bevel drive gear is installed at the lower part of the gear shaft, and the gear shaft is set vertically through the reversing housing. The drive gear is located outside the reversing housing.

[0007] Limit grooves are provided on the top surface of the track's base plate, and the wheels travel within these grooves.

[0008] A mounting plate is fixedly connected between the two side plates, and a lifting mechanism is installed on the top of the mounting plate.

[0009] The driven gear is mounted on a vertically arranged gear shaft two. The lower part of the gear shaft two is rotatably connected to a bearing seat, which is fixed on the top surface of the mounting plate two. The mounting plate two is fixed on the inner side of the driven gear.

[0010] The technical solution of this utility model has the following positive effects: both sides of the vertical part of the track of this utility model are provided with racks, one side is engaged with a driving gear and the other side is engaged with a driven gear. The driving gear is driven by a drive motor to rotate and move along the rack, and the driven gear also moves along the rack, so the traveling wheel set is not easy to deviate; the traveling wheel moves along the limiting groove, which limits the traveling wheel. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of this utility model.

[0013] Reference numerals in the attached diagram: 1. Track; 2. Side plate; 3. Rack; 4. Drive gear; 5. Gear shaft; 6. Drive motor; 7. Reversing housing; 8. Bevel gear one; 9. Horizontal shaft; 10. Traveling wheel; 11. Limiting groove; 12. Bevel gear two; 13. Mounting plate one; 14. Lifting mechanism; 15. Driven gear; 16. Gear shaft two; 17. Bearing seat; 18. Mounting plate two. Detailed Implementation

[0014] like Figure 1-2 As shown, the track includes an I-shaped track 1, on which a set of traveling wheels runs. The set of traveling wheels includes two side plates 2 symmetrically arranged on both sides of the track 1. Vertical racks 3 are fixedly connected to both sides of the vertical part of the track 1. One rack 3 has a drive gear 4 meshing on its side, and the other rack 3 has a driven gear 15 meshing on its side. The drive gear 4 is mounted on a vertically arranged gear shaft 5, which is driven by a drive motor 6. The drive motor 6 is fixedly mounted on the outside of the side plate 2, and the drive motor 6 is fixedly connected to the outside of the side plate 2. Two horizontal shafts 9 are installed on each of the two side plates 2 at intervals. Traveling wheels 10 are rotatably connected to the horizontal shafts 9, and the wheel surface of the traveling wheels 10 is in contact with the top surface of the bottom plate of the track 1.

[0015] Specifically, when the drive motor 6 is powered on, it drives the gear shaft 5 to rotate. The gear shaft 5 drives the drive gear 4 to rotate. The drive gear 4 meshes with the rack 3, causing the drive gear 4 to move along the rack 3. It is not easy to deviate when traveling. At the same time, it drives the traveling wheel 10 to travel along the track 1.

[0016] The drive motor 6 is horizontally mounted on the outside of the side plate 2. The reversing housing 7 is mounted on the inside of the side plate 2. The shaft of the drive motor 6 extends horizontally through the side plate 2 into the reversing housing 7. A bevel gear 8 is fixedly connected to the shaft of the drive motor 6. The bevel gear 8 meshes with a bevel gear 12. The bevel drive gear 4 is mounted on the lower part of the gear shaft 5. The gear shaft 5 is vertically mounted through the reversing housing 7. The drive gear 4 is located outside the reversing housing 7. Specifically, the reversing housing 7 is fixedly mounted on the inside of the side plate 2. The drive motor 6 drives the bevel gear 8 to rotate, which in turn drives the bevel gear 12 to rotate, thereby driving the drive gear 4 to rotate.

[0017] Limiting grooves 11 are provided on the top surface of the base plate of track 1, and the traveling wheels 10 travel within the limiting grooves 11. Specifically, the traveling wheels 10 travel within the limiting grooves 11, which also limits the movement of the traveling wheels 10. At the same time, the traveling wheels 10 also provide vertical support for the side plate 2.

[0018] A mounting plate 13 is fixedly connected between the two side plates 2, and a lifting mechanism 14 is installed on the top of the mounting plate 13; specifically, the lifting mechanism 14 is an electric hoist, which is installed on the top of the mounting plate 13 and moves along the track 1 following the traveling wheel set.

[0019] Driven gear 15 is mounted on a vertically arranged gear shaft 16. A bearing seat 17 is rotatably connected to the lower part of gear shaft 16. The bearing seat 17 is fixed to the top surface of mounting plate 18. Mounting plate 18 is fixed to the inner side of the gear shaft 15. Specifically, gear shaft 16 is rotatably connected to the gear shaft 16 through bearing seat 17. Driven gear 15, which is fixedly connected to gear shaft 16, rotates and moves along rack 3.

[0020] The working process is as follows: racks 3 are provided on both sides of the vertical part of the track 1. The racks 3 are respectively meshed with the driving gear 4 and the driven gear 15. The driving gear 4 is driven to rotate by the drive motor 6, thereby moving along the rack 3 to avoid derailment. It drives the side plate 2 to move along the track 1, and drives the traveling wheel 10 to travel along the top surface of the bottom plate of the track 1. The limiting groove 11 limits the traveling wheel 10.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crane anti-derailment traveling wheel set, characterized in that: The track (1) is shaped like an I-beam. A set of traveling wheels runs on the track (1). The set of traveling wheels includes two side plates (2) symmetrically arranged on both sides of the track (1). A rack (3) is fixedly connected to both sides of the vertical part of the track (1). A drive gear (4) is meshed on the side of one rack (3), and a driven gear (15) is meshed on the side of the other rack (3). The drive gear (4) is mounted on a gear shaft (5) arranged vertically. The gear shaft (5) is driven by a drive motor (6). The drive motor (6) is fixedly installed on the outside of the side plate (2). The drive motor (6) is fixedly connected to the outside of the side plate (2). Two horizontal shafts (9) are installed on both side plates (2) at intervals. A traveling wheel (10) is rotatably connected to the horizontal shaft (9). The wheel surface of the traveling wheel (10) is in contact with the top surface of the bottom plate of the track (1).

2. The crane anti-derailment traveling wheel set according to claim 1, characterized in that: The drive motor (6) is horizontally mounted on the outside of the side plate (2). The reversing housing (7) is mounted on the inside of the side plate (2). The shaft of the drive motor (6) extends horizontally through the side plate (2) into the reversing housing (7). A bevel gear (8) is fixedly connected to the shaft of the drive motor (6). The bevel gear (8) meshes with a bevel gear (12). The bevel drive gear (4) is mounted on the lower part of the gear shaft (5). The gear shaft (5) is vertically mounted through the reversing housing (7). The drive gear (4) is located outside the reversing housing (7).

3. A crane anti-derailment traveling wheel set according to claim 1, characterized in that: Limiting grooves (11) are provided on the top surface of the base plate of the track (1), and the traveling wheels (10) travel in the limiting grooves (11).

4. A crane anti-derailment traveling wheel set according to claim 2, characterized in that: A mounting plate (13) is fixedly connected between the two side plates (2), and a lifting mechanism (14) is installed on the top of the mounting plate (13).

5. A crane anti-derailment traveling wheel set according to claim 3, characterized in that: The driven gear (15) is mounted on the vertically arranged gear shaft two (16). The lower part of the gear shaft two (16) is rotatably connected to the bearing seat (17). The bearing seat (17) is fixed on the top surface of the mounting plate two (18). The mounting plate two (18) is fixed on the inner side close to the driven gear (15).