Explosion-proof crane trolley wheel
By designing lubrication and cleaning components on the wheels, the problems of wheel wear and rust were solved, resulting in improved stability and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG WANLI LIFTING MASCH CO LTD
- Filing Date
- 2025-07-27
- Publication Date
- 2026-07-07
AI Technical Summary
The existing crane wheels are made of forged carbon steel. The friction between the wheels and the guide rails during travel causes uneven wear and makes them prone to rust, reducing stability.
The design incorporates a rotating shaft, a traveling wheel, a lubrication assembly, and a cleaning assembly. Lubricating oil is injected into the traveling wheel through a lubrication tank and an oil outlet pipe, and cleaning is performed using a motor-driven cleaning brush roller, thus achieving both lubrication and cleaning operations.
It effectively prevents wheel wear and rust, improves service life and stability, and simplifies the maintenance process.
Smart Images

Figure CN224467388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, and in particular to an explosion-proof crane wheel. Background Technology
[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. Its working characteristic is intermittent motion; that is, in a work cycle, the corresponding mechanisms for actions such as picking up, moving, and unloading materials work alternately. Cranes are becoming increasingly widespread in the market. Traveling wheels are a type of moving load-bearing wheel used in large lifting machinery. Traveling wheels are easily damaged components on lifting equipment, and they need to operate continuously during operation.
[0003] Chinese patent application number 202221338804.9 discloses a crane wheel for an explosion-proof crane. The crane structure includes a forward and reverse rotating motor, a motor shaft fixedly connected to the back of the motor, a motor gear fixedly connected to the back of the motor shaft, a crane gear fixedly connected to one side of the motor gear, a crane bearing fixedly connected to the front of the crane gear, and crane wheels fixedly connected to both sides of the crane bearing. Crane rails are fixedly connected to the bottom of both crane wheels, and a housing is fixedly connected to the top of both crane wheels. A cleaning structure and a lubrication structure are fixedly connected to the top of the housing. The cleaning structure cleans the rails in front of the crane wheels during operation, preventing derailment caused by foreign objects on the rails. The lubrication device drips lubricant onto the crane wheels during operation, and the lubricant has an anti-rust effect.
[0004] In the prior art, existing crane wheels are made of carbon steel forging. The friction between the crane wheel and the guide rail during travel will cause wear on the crane wheel. The force between the worn crane wheel and the guide rail will be unbalanced, and the worn crane wheel is prone to rust, which reduces the stability of the crane wheel and cannot meet the usage requirements. Therefore, this application proposes an explosion-proof crane wheel to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to solve the shortcomings of existing crane wheels, which are made of carbon steel forging. The friction between the crane wheel and the guide rail during travel causes wear on the crane wheel. After wear, the force between the worn crane wheel and the guide rail becomes unbalanced. Furthermore, the worn crane wheel is prone to rust, which reduces the stability of the crane wheel and fails to meet the usage requirements. Therefore, an explosion-proof crane wheel is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An explosion-proof crane wheel includes a mounting bracket, and the crane wheel further includes:
[0008] A rotating shaft, the left and right ends of which are rotatably connected to the left and right inner walls of the mounting bracket, respectively.
[0009] The vehicle wheels are provided in two, and both of the vehicle wheels are fixedly sleeved on the axle;
[0010] The first motor is fixedly installed on the right side of the mounting frame. The output shaft of the first motor passes through the right side of the mounting frame and extends into the interior of the mounting frame. A small gear is fixedly installed on the output shaft of the first motor, and a large gear is fixedly sleeved on the rotating shaft. The small gear meshes with the large gear.
[0011] The lubrication assembly includes a lubricating fluid tank and two oil outlet pipes. The lubricating fluid tank is fixedly installed on the top of the mounting frame. The two oil outlet pipes are respectively fixedly connected to the left and right sides of the lubricating fluid tank at their close ends. The bottom ends of the two oil outlet pipes penetrate the top of the mounting frame and extend into the interior of the mounting frame. The bottom ends of the oil outlet pipes are matched with the corresponding wheels.
[0012] The cleaning components are provided in two, both of which are located on the front side of the mounting bracket and cooperate with the corresponding wheels.
[0013] As a preferred embodiment of this utility model, control valves are fixedly installed on both of the oil outlet pipes.
[0014] As a preferred embodiment of this utility model, the cleaning assembly includes a mounting plate, an electric push rod, a bracket, and a cleaning brush roller. The mounting plate is disposed on the front side of the mounting frame, the electric push rod is fixedly mounted on the front side of the mounting plate, the output shaft of the electric push rod passes through the mounting plate and is fixedly mounted on the front side of the bracket, the cleaning brush roller is rotatably connected to the inner wall of the bracket, and the cleaning brush roller cooperates with the corresponding traveling wheel. Two mounting components are disposed on the front side of the mounting frame, and the mounting components cooperate with the top of the corresponding mounting plate.
[0015] As a preferred embodiment of this utility model, a second motor is fixedly installed on one side of the bracket, and the output shaft of the second motor passes through one side of the bracket and is fixedly installed at one end of the corresponding cleaning brush roller.
[0016] As a preferred embodiment of this utility model, two stabilizing rods are fixedly installed on the front side of the bracket, and adapter slots are provided on the left and right sides of the mounting plate. The front end of the stabilizing rod passes through the corresponding adapter slot and is slidably connected to the inner wall of the adapter slot.
[0017] In a preferred embodiment of this utility model, the mounting assembly includes two connecting rods, two locking rods, and two springs. The mounting plate has slots on both its left and right sides. The rear ends of the two connecting rods are fixedly mounted on the front side of the mounting bracket. The front ends of the connecting rods pass through the corresponding slots and are slidably connected to the inner wall of the slots. The ends of the two locking rods that are close to each other pass through the two connecting rods and contact the front side of the mounting plate. The springs are simultaneously mounted on the corresponding locking rods. The ends of the two springs that are close to each other are fixedly mounted on the two connecting rods, and the ends of the two springs that are far apart from each other are fixedly mounted on the two locking rods.
[0018] Beneficial effects:
[0019] 1. By starting the first motor, the small gear can be driven to rotate. Then, through the meshing transmission between the small gear and the large gear, the rotating shaft and the two traveling wheels can be driven to rotate, so that the traveling wheels can move along the rails on the crane. Here, by adding lubricating oil inside the lubricating oil tank, lubricating oil can be injected into the two traveling wheels through the two oil outlet pipes, thereby avoiding wear and rust of the traveling wheels after long-term operation and improving the service life of the traveling wheels.
[0020] 2. By activating the electric push rod, the bracket and cleaning brush roller can be moved back and forth, so that the cleaning brush roller can contact the traveling wheel to clean the traveling wheel. At the same time, when cleaning is not needed, the cleaning brush roller can be moved away from the traveling wheel to avoid excessive wear of the cleaning brush roller. Here, by activating the second motor, the cleaning brush roller can be driven to rotate, so that the cleaning brush roller is evenly subjected to high-speed rotational power, improving the cleaning effect on the traveling wheel.
[0021] 3. By connecting the connecting rod to the two slots and making the rear side of the mounting plate contact the front side of the mounting frame, the vertical and rearward movement of the mounting plate can be limited. At the same time, the elastic return characteristic of the spring drives the two locking rods to move closer to each other, which allows the mounting plate to move forward first. This enables quick assembly and disassembly of the top of the mounting plate from the mounting frame, making it convenient for personnel to clean or maintain the electric push rod, the second motor, and the cleaning brush roller.
[0022] This utility model achieves cleaning and lubrication of the traveling wheel through a simple structure, avoiding friction between the traveling wheel and the guide rail during long-term operation and causing wear on the traveling wheel, thus improving the stability and lifespan of the traveling wheel and making it highly practical. Attached Figure Description
[0023] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0024] Figure 2 This is a three-dimensional rear view of the structure of this utility model;
[0025] Figure 3 This is a three-dimensional structural diagram of the mounting bracket, rotating shaft, traveling wheel, first motor, pinion, large gear, lubricant tank, oil outlet pipe, and control valve of this utility model.
[0026] Figure 4 This is a three-dimensional structural diagram of the rotating shaft, traveling wheel, mounting plate, electric push rod, bracket, second motor, cleaning brush roller, stabilizer bar, adapter groove, slot, connecting rod, clamping rod, and spring of this utility model.
[0027] In the diagram: 1. Mounting bracket; 2. Shaft; 3. Wheel; 4. First motor; 5. Pinion; 6. Gear; 7. Lubricant tank; 8. Oil outlet pipe; 9. Control valve; 10. Mounting plate; 11. Electric push rod; 12. Bracket; 13. Second motor; 14. Cleaning brush roller; 15. Stabilizer bar; 16. Adaptor groove; 17. Slot; 18. Connecting rod; 19. Locking rod; 20. Spring. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] Example
[0030] Reference Figures 1-4 An explosion-proof crane wheel includes a mounting frame 1, and the crane wheel further includes:
[0031] The left and right ends of the rotating shaft 2 are rotatably connected to the left and right inner walls of the mounting bracket 1, respectively.
[0032] Two wheels 3 are provided, and both wheels 3 are fixedly mounted on the shaft 2.
[0033] The first motor 4 is fixedly installed on the right side of the mounting frame 1. The output shaft of the first motor 4 passes through the right side of the mounting frame 1 and extends into the interior of the mounting frame 1. A small gear 5 is fixedly installed on the output shaft of the first motor 4, and a large gear 6 is fixedly sleeved on the rotating shaft 2. The small gear 5 and the large gear 6 mesh with each other.
[0034] The lubrication assembly includes a lubricant tank 7 and two oil outlet pipes 8. The lubricant tank 7 is fixedly installed on the top of the mounting frame 1. The two oil outlet pipes 8 are respectively fixedly connected to the left and right sides of the lubricant tank 7 at their close ends. The bottom ends of the two oil outlet pipes 8 pass through the top of the mounting frame 1 and extend into the interior of the mounting frame 1. The bottom ends of the oil outlet pipes 8 are matched with the corresponding wheel 3.
[0035] There are two cleaning components, both of which are located on the front side of the mounting bracket 1 and are engaged with the corresponding wheel 3.
[0036] With the above structure, starting the first motor 4 can drive the small gear 5 to rotate. At this time, through the meshing transmission between the small gear 5 and the large gear 6, the rotating shaft 2 and the two traveling wheels 3 can be driven to rotate, thereby enabling the traveling wheels 3 to move along the rails on the crane. Here, by adding lubricating oil inside the lubricating oil tank 7, lubricating oil can be injected into the two traveling wheels 3 through the two oil outlet pipes 8, thereby avoiding wear and rust of the traveling wheels 3 after long-term operation and improving the service life of the traveling wheels 3.
[0037] As a preferred embodiment of this utility model, control valves 9 are fixedly installed on both oil outlet pipes 8. By setting control valves 9, the oil outlet pipes 8 can be switched on and off, thereby achieving quantitative control of lubricating oil and avoiding waste of lubricating oil.
[0038] As a preferred embodiment of this utility model, the cleaning assembly includes a mounting plate 10, an electric push rod 11, a bracket 12, and a cleaning brush roller 14. The mounting plate 10 is disposed on the front side of the mounting frame 1. The electric push rod 11 is fixedly mounted on the front side of the mounting plate 10. The output shaft of the electric push rod 11 passes through the mounting plate 10 and is fixedly mounted on the front side of the bracket 12. The cleaning brush roller 14 is rotatably connected to the inner wall of the bracket 12 and cooperates with the corresponding traveling wheel 3. Two mounting components are disposed on the front side of the mounting frame 1. The mounting components cooperate with the top of the corresponding mounting plate 10. By activating the electric push rod 11, the bracket 12 and the cleaning brush roller 14 can be driven to move back and forth, thereby making the cleaning brush roller 14 contact the traveling wheel 3 to realize the cleaning operation of the traveling wheel 3. At the same time, when cleaning is not required, the cleaning brush roller 14 can be moved away from the traveling wheel 3 to avoid excessive wear of the cleaning brush roller 14.
[0039] As a preferred embodiment of this utility model, a second motor 13 is fixedly installed on one side of the bracket 12. The output shaft of the second motor 13 passes through one side of the bracket 12 and is fixedly installed at one end of the corresponding cleaning brush roller 14. By starting the second motor 13, the cleaning brush roller 14 can be driven to rotate, so that the cleaning brush roller 14 is subjected to high-speed rotational power, thereby improving the cleaning effect on the wheel 3.
[0040] As a preferred embodiment of this utility model, two stabilizing rods 15 are fixedly installed on the front side of the bracket 12. Adapting grooves 16 are provided on the left and right sides of the mounting plate 10. The front end of the stabilizing rod 15 passes through the corresponding adapting groove 16 and is slidably connected to the inner wall of the adapting groove 16. Through the sliding limiting cooperation between the stabilizing rod 15 and the adapting groove 16, the stability of the back-and-forth movement of the bracket 12 and the cleaning brush roller 14 can be improved.
[0041] In a preferred embodiment of this utility model, the mounting assembly includes two connecting rods 18, two locking rods 19, and two springs 20. The mounting plate 10 has slots 17 on both its left and right sides. The rear ends of the two connecting rods 18 are fixedly mounted on the front side of the mounting bracket 1, and the front ends of the connecting rods 18 pass through the corresponding slots 17 and slide against the inner wall of the slots 17. The ends of the two locking rods 19 that are close to each other pass through the two connecting rods 18 and contact the front side of the mounting plate 10. The springs 20 are simultaneously mounted on the corresponding locking rods 19, and the ends of the two springs 20 that are close to each other are fixedly mounted on the two connecting rods 18. The two ends of the mounting plate 10 are fixedly mounted on two locking rods 19 respectively. The connecting rod 18 is inserted into the two locking slots 17, and the rear side of the mounting plate 10 contacts the front side of the mounting frame 1. This allows for limiting the vertical and rearward movement of the mounting plate 10. At the same time, the elastic reset characteristic of the spring 20 drives the two locking rods 19 to move closer to each other, which allows the two locking rods 19 to move the mounting plate 10 forward. This enables quick assembly and disassembly of the top of the mounting plate 10 from the mounting frame 1, making it easier for personnel to clean or maintain the electric push rod 11, the second motor 13, and the cleaning brush roller 14.
[0042] It should be noted that the specific models of the first motor 4, control valve 9, electric push rod 11, and second motor 13 used shall be selected by those skilled in the art. Furthermore, the first motor 4, control valve 9, electric push rod 11, and second motor 13 mentioned above are all existing technologies and will not be elaborated upon in this solution.
[0043] The working principle of this utility model is as follows: In use, firstly, the first motor 4, control valve 9, electric push rod 11, and second motor 13 are connected to an external power source. Then, starting the first motor 4 drives the small gear 5 to rotate. Through the meshing transmission between the small gear 5 and the large gear 6, the rotating shaft 2 and the two traveling wheels 3 are driven to rotate, thus enabling the traveling wheels 3 to move along the rails on the crane. Lubricating oil is added to the lubricating oil tank 7, and then injected into the two traveling wheels 3 through the two oil outlet pipes 8, thus preventing wear and rust on the traveling wheels 3 due to prolonged operation and improving their service life. Additionally, starting the electric push rod 11 moves the bracket 12 and cleaning brush roller 14 back and forth, causing the cleaning brush roller 14 to contact the traveling wheels 3, thus cleaning the traveling wheels 3. The cleaning brush roller 14 can be moved away from the traveling wheel 3 when cleaning is not needed, thus avoiding excessive wear of the cleaning brush roller 14. Here, the second motor 13 is started to drive the cleaning brush roller 14 to rotate, so that the cleaning brush roller 14 is subjected to high-speed rotational power, improving the cleaning effect on the traveling wheel 3. Finally, the connecting rod 18 is inserted into the two slots 17, and the rear side of the mounting plate 10 contacts the front side of the mounting frame 1, thereby limiting the vertical and rearward movement of the mounting plate 10. At the same time, the elastic reset characteristic of the spring 20 drives the two locking rods 19 to move closer to each other, so that the two locking rods 19 can first control the forward movement of the mounting plate 10. At this time, the top of the mounting plate 10 can be quickly disassembled and assembled from the mounting frame 1, which makes it convenient for personnel to clean or maintain the electric push rod 11, the second motor 13 and the cleaning brush roller 14.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An explosion-proof crane wheel, comprising a mounting bracket (1), characterized in that, The crane's traveling wheels also include: The left and right ends of the rotating shaft (2) are rotatably connected to the left inner wall and the right inner wall of the mounting bracket (1), respectively. Two wheels (3) are provided, and both wheels (3) are fixedly mounted on the shaft (2); The first motor (4) is fixedly installed on the right side of the mounting bracket (1). The output shaft of the first motor (4) passes through the right side of the mounting bracket (1) and extends into the interior of the mounting bracket (1). A small gear (5) is fixedly installed on the output shaft of the first motor (4). A large gear (6) is fixedly sleeved on the rotating shaft (2). The small gear (5) meshes with the large gear (6). The lubrication assembly includes a lubricating fluid tank (7) and two oil outlet pipes (8). The lubricating fluid tank (7) is fixedly installed on the top of the mounting frame (1). The two oil outlet pipes (8) are respectively fixedly connected to the left and right sides of the lubricating fluid tank (7) at their close ends. The bottom ends of the two oil outlet pipes (8) penetrate the top of the mounting frame (1) and extend into the interior of the mounting frame (1). The bottom ends of the oil outlet pipes (8) are matched with the corresponding wheel (3). The cleaning components are configured in two, both of which are located on the front side of the mounting bracket (1) and are engaged with the corresponding wheel (3).
2. The explosion-proof crane wheel according to claim 1, characterized in that, Control valves (9) are fixedly installed on both of the oil outlet pipes (8).
3. The explosion-proof crane wheel according to claim 1, characterized in that, The cleaning assembly includes a mounting plate (10), an electric push rod (11), a bracket (12), and a cleaning brush roller (14). The mounting plate (10) is located on the front side of the mounting frame (1). The electric push rod (11) is fixedly mounted on the front side of the mounting plate (10). The output shaft of the electric push rod (11) passes through the mounting plate (10) and is fixedly mounted on the front side of the bracket (12). The cleaning brush roller (14) is rotatably connected to the inner wall of the bracket (12). The cleaning brush roller (14) cooperates with the corresponding traveling wheel (3). Two mounting assemblies are provided on the front side of the mounting frame (1). The mounting assemblies cooperate with the top of the corresponding mounting plate (10).
4. The explosion-proof crane wheel according to claim 3, characterized in that, A second motor (13) is fixedly installed on one side of the bracket (12). The output shaft of the second motor (13) passes through one side of the bracket (12) and is fixedly installed at one end of the corresponding cleaning brush roller (14).
5. The explosion-proof crane wheel according to claim 3, characterized in that, Two stabilizing rods (15) are fixedly installed on the front side of the bracket (12). Adaptor slots (16) are provided on the left and right sides of the mounting plate (10). The front end of the stabilizing rod (15) passes through the corresponding adapter slot (16) and is slidably connected to the inner wall of the adapter slot (16).
6. The explosion-proof crane wheel according to claim 3, characterized in that, The mounting assembly includes two connecting rods (18), two locking rods (19), and two springs (20). The mounting plate (10) has slots (17) on both the left and right sides. The rear ends of the two connecting rods (18) are fixedly mounted on the front side of the mounting bracket (1). The front ends of the connecting rods (18) pass through the corresponding slots (17) and slide with the inner wall of the slots (17). The ends of the two locking rods (19) that are close to each other pass through the two connecting rods (18) and contact the front side of the mounting plate (10). The springs (20) are on the corresponding locking rods (19). The ends of the two springs (20) that are close to each other are fixedly mounted on the two connecting rods (18), and the ends of the two springs (20) that are far apart from each other are fixedly mounted on the two locking rods (19).