Rail wheel deviation rectifying mechanism for crane
By designing a correction mechanism with arc-shaped guide rails and ball bearings on the crane, the problems of uneven wheel wear and track damage caused by crane misalignment were solved, thus achieving stable operation of the crane.
Patent Information
- Application Number
- CN202422624850.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing rail-mounted cranes are prone to shifting when grabbing heavy objects, resulting in uneven wheel wear and rail damage.
Design a track wheel correction mechanism for cranes, which uses an arc-shaped guide rail and ball bearings. An external motor drives the rotating shaft to move, so that the rotating shaft drives the wheel to cooperate with the guide rail. The ball bearings connected by a limit ring and a spring reduce friction and maintain the stability of the wheel on the guide rail.
It effectively prevents crane deviation, reduces uneven wheel wear and track damage, and improves operational stability.
Smart Images

Figure CN223547595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, specifically to a track wheel correction mechanism for cranes. Background Technology
[0002] A crane is a widely used heavy equipment, mainly used for lifting heavy objects vertically and moving them horizontally. It lifts, lowers, or moves heavy objects horizontally through a lifting hook or other lifting device to achieve the movement and positioning of heavy objects in space.
[0003] Existing rail-mounted cranes are prone to deviation when handling excessively heavy objects. When the crane deviates, the contact surface between the wheels and the rails changes, leading to uneven wheel wear and potential damage to the rails due to uneven stress. Therefore, a rail wheel correction mechanism is needed to address these issues. Utility Model Content
[0004] The purpose of this utility model is to provide a track wheel correction mechanism for cranes. With the guide rail surface being arc-shaped and the ball bearings engaging with the guide rail, an external motor drives the rotating shaft to move. As the rotating shaft moves, it simultaneously drives the wheel to engage with the guide rail. This solves the problem that when the crane deviates, the contact surface between the wheel and the rail changes, which can easily lead to uneven wheel wear and damage to the rail due to uneven force.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model relates to a track wheel correction mechanism for cranes, including a bracket and a correction assembly. The correction assembly includes guide rails, support plates, and springs. Two guide rails are provided, both of which are mounted on the bracket. Limiting plates are installed at both ends of the two guide rails. A rotating shaft is connected to the support plate via bearings. Wheels are installed at both ends of the rotating shaft, and both wheels cooperate with the guide rails. A corresponding limiting ring is fitted on the rotating shaft. A blind groove is opened on the side wall of the limiting ring away from the support plate. A ball is connected to the blind groove via a spring, and the ball cooperates with the guide rail.
[0007] Furthermore, the surface of the guide rail is curved.
[0008] Furthermore, the wheels are designed with a semi-conical shape, smaller on the outside than on the inside.
[0009] Furthermore, blind slots are provided and evenly distributed on the side wall of the limiting ring.
[0010] Furthermore, a crossbar is installed on the support plate.
[0011] Furthermore, a crane is mounted on the horizontal plate.
[0012] This utility model has the following beneficial effects:
[0013] This invention solves the problem of existing rail cranes easily shifting when the load is too heavy. This is because the surface of the guide rail is arc-shaped, the ball bearings cooperate with the guide rail, and the shaft is driven by an external motor. The shaft's movement simultaneously drives the wheel to cooperate with the guide rail.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of the crane;
[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;
[0017] Figure 3 for Figure 2 Enlarged structural diagram at point B;
[0018] Figure 4 This is a schematic diagram of the correction component.
[0019] Figure 5 This is an exploded structural diagram of the wheel, limit ring, blind groove, spring, and ball bearing.
[0020] In the diagram: 1. Bracket; 2. Correction assembly; 201. Guide rail; 202. Limiting plate; 203. Support plate; 204. Rotating shaft; 205. Wheel; 206. Limiting ring; 207. Blind groove; 208. Spring; 209. Ball bearing; 210. Horizontal plate; 3. Crane. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-5This utility model provides a technical solution: a track wheel correction mechanism for a crane, including a bracket 1 and a correction component 2. The correction component 2 includes a guide rail 201, a support plate 203, and a spring 208. There are two guide rails 201, both of which are mounted on the bracket 1. When the correction component 2 is running, under the condition that the surface of the guide rail 201 is arc-shaped, the contact area between the guide rail 201 and the wheel 205 can be increased, providing better traction. Under the condition that the wheel 205 is a semi-conical shape with the outer side smaller than the inner side, and both wheels 205 cooperate with the guide rail 201, when vertical pressure is applied to the two wheels 205, a mutual inward pushing force will be generated, so that the wheels 205 can be kept on the guide rail 201.
[0023] Limiting plates 202 are installed at both ends of the two guide rails 201. The limiting plates 202 can limit the movement of the wheel 205 so that it does not fall off the guide rail 201 during operation. With the rotating shaft 204 connected to the support plate 203 by bearings, the support plate 203 can be moved when the rotating shaft 204 is driven by an external motor.
[0024] Wheels 205 are installed at both ends of the rotating shaft 204. With corresponding limiting rings 206 fitted on the rotating shaft 204, the rotating shaft 204 moves while driving the limiting rings 206. When the object being gripped is too heavy or the weight distribution is uneven, the wheels 205 may fall off. At this time, the limiting rings 206 can prevent the wheels 205 from sliding outward, keeping the wheels 205 on the guide rail 201, thus achieving the effect of correction. A blind groove 207 is provided on the side wall of the limiting ring 206 away from the support plate 203. The blind groove 207 is used to cooperate with the ball 209. The ball 209 is connected to the blind groove 207 through a spring 208. The spring 208 can cooperate with the ball 209, so that the ball 209 can better contact the guide rail 201. With the ball 209 cooperating with the guide rail 201, the friction can be reduced, making the operation of the correction component 2 more stable.
[0025] With six blind grooves 207 evenly distributed on the side wall of the limiting ring 206, the contact area between the ball 209 and the guide rail 201 can be increased.
[0026] With the cross plate 210 installed on the support plate 203, the support plate 203 can move while simultaneously moving the cross plate 210.
[0027] With a crane 3 installed on the horizontal plate 210, the horizontal plate 210 can drive the crane 3 to move, so that the crane 3 can move the goods to the designated position.
[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A track wheel correction mechanism for a crane, comprising a support (1), characterized in that, It also includes a correction component (2), which includes a guide rail (201), a support plate (203) and a spring (208). There are two guide rails (201), both of which are mounted on the bracket (1). Limiting plates (202) are installed at both ends of the two guide rails (201). A rotating shaft (204) is connected to the support plate (203) through a bearing. Wheels (205) are installed at both ends of the rotating shaft (204). Both wheels (205) cooperate with the guide rail (201). A corresponding limiting ring (206) is sleeved on the rotating shaft (204). A blind groove (207) is opened on the side wall of the limiting ring (206) away from the support plate (203). A ball (209) is connected to the blind groove (207) through a spring (208). The ball (209) cooperates with the guide rail (201).
2. The crane track wheel correction mechanism according to claim 1, characterized in that, The surface of the guide rail (201) is arc-shaped.
3. The crane track wheel correction mechanism according to claim 1, characterized in that, The wheel (205) is a semi-conical shape with the outer side smaller than the inner side.
4. The crane track wheel correction mechanism according to claim 1, characterized in that, The blind groove (207) is provided in six parts and is evenly distributed on the side wall of the limiting ring (206).
5. The crane track wheel correction mechanism according to claim 1, characterized in that, A cross plate (210) is installed on the support plate (203).
6. The crane track wheel correction mechanism according to claim 5, characterized in that, A crane (3) is mounted on the horizontal plate (210).