Garbage crane trolley with stable running mechanism
By connecting a dual-head motor and a flexible universal joint, combined with a rotating bearing and an auxiliary reduction mechanism, the problems of roller shaft breakage and wear on the overhead crane were solved, resulting in more stable operation and lifting performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENLING HANYANG RESOURCES POWER CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
The roller shafts of the overhead crane are prone to breakage, and the key pins and connecting sleeves of the drive shaft wear out, resulting in poor operational stability.
The system employs a dual-head motor to drive the rollers on both sides, combined with a flexible universal joint connection, and incorporates rotating bearings and an auxiliary reduction mechanism to ensure balanced torque and reduce the force on the roller bearings.
It improves the operational stability of the overhead crane, reduces wear on the roller shafts, and enhances the precision and safety of the lifting process.
Smart Images

Figure CN224212291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to overhead cranes, and more particularly to a garbage crane trolley with a stable operating mechanism. Background Technology
[0002] like Figure 1 As shown, a crane is provided on the crane for lifting and transporting garbage, waste, etc. The bottom of the crane is provided with two pairs of rollers. The drive motor is located on one side of the roller and drives the roller to rotate, thereby driving the crane to move. The two rollers are connected by a connecting shaft to transmit power.
[0003] During use, the roller shafts of the aforementioned overhead cranes frequently break, and the key pins and connecting sleeves of the drive shafts also frequently wear out, resulting in poor operational stability. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a garbage crane trolley with a stable operating mechanism, which has the advantage of good operational stability.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a garbage crane trolley with a stable operating mechanism, including a pair of running guide rails and a frame, the frame moving along the guide rails, a crane being installed on the frame, a pair of front rollers and a pair of rear rollers being installed below the frame, and a dual-head motor being installed at the front end of the frame, the two output ends of the dual-head motor being fixedly connected to the two front rollers respectively.
[0006] By employing the aforementioned technical means and setting up a dual-head motor, the torque force is simultaneously applied to both sides, ensuring that the wheels on both sides are driven by the same torque force, thereby reducing the torque on the roller bearings and ensuring operational stability.
[0007] Preferably, both output ends of the dual-head motor are provided with flexible universal joints, and the other end of the flexible universal joint is fixedly connected to the two front rollers. The flexible universal joint consists of a pair of universal couplings and a shaft.
[0008] By using the above-mentioned technical means, the rigid connection is replaced with a flexible connection by using a flexible universal joint to connect the motor and the roller, thereby reducing the force on the roller shaft.
[0009] Preferably, the bottom of the hanger is provided with a mounting cavity for mounting the front roller and the rear roller, and side mounting plates are provided on both sides of the mounting cavity. Rotary bearing one and rotary bearing two are respectively provided on the two side mounting plates, and the front roller and the rear roller are fixedly installed in the inner ring of rotary bearing one and rotary bearing two.
[0010] By using the above-mentioned technical means, and by setting a side mounting plate, and setting rotating bearing one and rotating bearing two, the front roller and the rear roller are fixedly installed at the bottom of the hanger while ensuring that they can rotate.
[0011] Preferably, the front roller includes a central shaft, a wheel body, and a locking block. The wheel body is sleeved on the central shaft and its relative rotation with the central shaft is restricted by a key. A screw is also provided at the end of the central shaft. The locking block is threadedly engaged with the screw and locks the wheel body. Mounting shaft one and mounting shaft two are respectively provided at both ends of the screw. Mounting shaft one is located on the outside of the screw. The central shaft is fixedly connected to rotating bearing one and rotating bearing two through mounting shaft one and mounting shaft two.
[0012] By using the above-mentioned technical means, the wheel body is sleeved on the central shaft and the rotation between the wheel body and the central shaft is restricted by a key, while being locked by a locking block, so that the central shaft and the wheel body can rotate simultaneously, and the wheel body can be disassembled for easy replacement when the wheel body is worn.
[0013] Preferably, a bearing bracket is provided on the outer side of the first rotating bearing, the bearing bracket is installed on the inner side of the side mounting plate by screws, and the second mounting shaft is fixed to the central shaft by screws.
[0014] By using the above-mentioned technical means, the second shaft and the central shaft are fixed together with screws, and the bearing bracket and the side mounting plate are fixed together. This allows the central shaft and the wheel body to be disassembled together when the wheel body needs to be replaced, reducing the difficulty of replacement.
[0015] Preferably, the running guide rail includes a bottom rail and a side rail, the front roller and the rear roller run on the bottom rail, the side end of the hanger is provided with a side roller, the side roller rolls on the side rail, and the hanger is also provided with an auxiliary deceleration mechanism.
[0016] By employing the aforementioned technical means, including setting up bottom rails and side rails, and installing side rollers, the operating accuracy of the hanger is increased.
[0017] Preferably, the auxiliary deceleration mechanism includes linear motors mounted on the four corners of the hanger, and the output end of the linear motor is provided with abutment, which assists in deceleration when it abuts against the side rail.
[0018] By using the above-mentioned technical means, the linear motor drives the butt head to press against the side rail, thereby assisting in deceleration when deceleration is required. At the same time, the crane is locked during the crane fixing operation, reducing the force generated by the swing of scrap material on the motor brake when the crane is lifting. Attached Figure Description
[0019] Figure 1 The background shows a structural schematic diagram of a crane.
[0020] Figure 2This is a schematic diagram of the structure in Example 1;
[0021] Figure 3 This is a partial schematic diagram of Embodiment 1;
[0022] Figure 4 This is a partial sectional view of Example 1.
[0023] Reference numerals: 1. Running guide rail; 2. Hanger; 3. Crane; 4. Front roller; 5. Dual-head motor; 6. Flexible universal joint; 7. Universal coupling; 8. Shaft; 9. Mounting cavity; 10. Side mounting plate; 11. Central shaft; 12. Wheel body; 13. Locking block; 14. Screw; 15. Mounting shaft one; 16. Mounting shaft two; 17. Bearing bracket; 18. Bottom rail; 19. Side rail; 20. Side roller; 21. Auxiliary reduction mechanism; 22. Linear motor; 23. Abutment; 24. Rotary bearing one; 25. Rotary bearing two. Detailed Implementation
[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.
[0025] A stable garbage crane trolley includes a pair of running guide rails 1 and a frame 2. The frame 2 moves along the guide rails. A crane 3 is mounted on the frame 2. A pair of front rollers 4 and a pair of rear rollers are mounted below the frame 2. A dual-head motor 5 is also mounted at the front end of the frame 2. The dual-head motor 5 has a built-in reducer and brake for increasing torque and controlling start and stop. This is prior art. The two output ends of the dual-head motor 5 are fixedly connected to the two front rollers 4 respectively. By setting the dual-head motor 5, the torque force is simultaneously applied to both sides, ensuring that the wheels on both sides are driven by the same torque force, thereby reducing the torque on the roller bearings and ensuring operational stability.
[0026] Both output ends of the dual-head motor 5 are equipped with flexible universal shafts 6. The other end of the flexible universal shaft 6 is fixedly connected to the two front rollers 4. The flexible universal shaft 6 consists of a pair of universal couplings 7 and a shaft 8. The universal couplings 7 are existing technology. By using the flexible universal shaft 6 to connect the motor and the front rollers 4, the rigid connection is replaced with a flexible connection, reducing the force on the roller shaft.
[0027] The bottom of the hanger 2 is provided with a mounting cavity 9 for mounting the front roller 4 and the rear roller. Side mounting plates 10 are provided on both sides of the mounting cavity 9, making the mounting cavity 9 n-shaped. Rotary bearing 1 24 and rotary bearing 25 are respectively provided on the side mounting plates 10. The front roller 4 and the rear roller are fixedly installed in the inner ring of the rotary bearing 1 24 and the rotary bearing 25, ensuring that the front roller 4 and the rear roller are fixedly installed at the bottom of the hanger 2 while ensuring that they can rotate. The installation method of the front roller 4 and the rear roller is the same, except that there is no need to install the dual-head motor 5 and the flexible universal joint 6 between the rear rollers.
[0028] The front roller 4 includes a central shaft 11, a wheel body 12, and a locking block 13. The wheel body 12 is sleeved on the central shaft 11 and the relative rotation between the wheel body 12 and the central shaft 11 is restricted by a key. A screw 14 is also provided at the end of the central shaft 11. The locking block 13 is threadedly engaged with the screw 14 and locks the wheel body 12. Mounting shaft 15 and mounting shaft 26 are respectively provided at both ends of the screw 14. Mounting shaft 15 is located on the outside of the screw 14. The central shaft 11 is fixedly connected to the rotating bearing 24 and rotating bearing 25 through mounting shaft 15 and mounting shaft 26.
[0029] A bearing bracket 17 is provided on the outer side of the rotating bearing 24. The bearing bracket 17 is installed on the inner side of the side mounting plate 10 by screws. The mounting shaft 16 is fixed to the central shaft 11 by screws. When the wheel body 12 needs to be replaced, the screws on the mounting shaft 16 and the screws on the bearing bracket 17 are removed, and the central shaft 11, wheel body 12 and locking block 13 can be removed. The wheel body 12 can be replaced by unscrewing the locking block 13.
[0030] The running guide rail 1 is made of angle iron and includes a bottom rail 18 and a side rail 19. The front roller 4 and the rear roller run on the bottom rail 18. The side end of the hanger 2 is provided with a side roller 20, which rolls on the side rail 19. The hanger 2 is also provided with an auxiliary deceleration mechanism 21. The auxiliary deceleration mechanism 21 includes linear motors 22 set at the four corners of the hanger 2. The output end of the linear motor 22 is provided with abutment 23. When the abutment 23 abuts against the side rail 19, it assists in deceleration. When deceleration is required, the abutment 23 assists in deceleration, reducing the burden on the brake. At the same time, when the hanger 2 is fixed, it can lock the hanger 2, reducing the force generated by the swing of the scrap material on the motor brake when the crane 3 is lifting.
[0031] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. A garbage crane trolley with a stable operating mechanism, comprising a pair of running guide rails (1) and a crane frame (2), wherein the crane frame (2) moves along the guide rails and a crane (3) is mounted on the crane frame (2), characterized in that: A pair of front rollers (4) and a pair of rear rollers are provided below the hanger (2). A dual-head motor (5) is also provided at the front end of the hanger (2). The two output ends of the dual-head motor (5) are respectively fixedly connected to the two front rollers (4).
2. The garbage crane trolley with a stable operating mechanism according to claim 1, characterized in that: Both output ends of the dual-head motor (5) are provided with flexible universal shafts (6). The other end of the flexible universal shaft (6) is fixedly connected to the two front rollers (4). The flexible universal shaft (6) consists of a pair of universal couplings (7) and a shaft (8).
3. The garbage crane trolley with a stable operating mechanism according to claim 1, characterized in that: The bottom of the hanger (2) is provided with a mounting cavity (9) for mounting the front roller (4) and the rear roller. Side mounting plates (10) are provided on both sides of the mounting cavity (9). Rotary bearing one (24) and rotary bearing two (25) are respectively provided on the two side mounting plates (10). The front roller (4) and the rear roller are fixedly installed in the inner ring of rotary bearing one (24) and rotary bearing two (25) on both sides.
4. The garbage crane trolley with a stable operating mechanism according to claim 3, characterized in that: The front roller (4) includes a central shaft (11), a wheel body (12), and a locking block (13). The wheel body (12) is sleeved on the central shaft (11) and the relative rotation between the wheel body (12) and the central shaft (11) is restricted by a key. A screw (14) is also provided at the end of the central shaft (11). The locking block (13) is threaded with the screw (14) and locks the wheel body (12). The two ends of the screw (14) are respectively provided with a mounting shaft one (15) and a mounting shaft two (16). The mounting shaft one (15) is located on the outside of the screw (14). The central shaft (11) is fixedly connected to the rotating bearing one (24) and the rotating bearing two (25) through the mounting shaft one (15) and the mounting shaft two (16).
5. A garbage crane trolley with a stable operating mechanism according to claim 4, characterized in that: The outer side of the first rotating bearing (24) is provided with a bearing bracket (17), which is installed on the inner side of the side mounting plate (10) by screws. The second mounting shaft (16) is fixed to the central shaft (11) by screws.
6. A garbage crane trolley with a stable operating mechanism according to claim 1, characterized in that: The running guide rail (1) includes a bottom rail (18) and a side rail (19). The front roller (4) and the rear roller run on the bottom rail (18). The side end of the hanger (2) is provided with a side roller (20), which rolls on the side rail (19). The hanger (2) is also provided with an auxiliary deceleration mechanism (21).
7. A garbage crane trolley with a stable operating mechanism according to claim 6, characterized in that: The auxiliary deceleration mechanism (21) includes linear motors (22) installed at the four corners of the hanger (2). The output end of the linear motor (22) is provided with abutment (23), which assists in deceleration when it abuts against the side rail (19).