Buffering anti-collision device of travelling mechanism of crane trolley
By combining the adjustment structure and the buffer anti-collision structure, the problem of the crane trolley traveling mechanism being unable to stop in time was solved, thus improving safety and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BENXI IRON & STEEL GROUP CRANE WORKS
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-17
AI Technical Summary
The existing buffer and anti-collision devices of the crane trolley traveling mechanism can only block impacts and cannot stop the crane in time, which is not very practical.
A device including an adjustment structure and a buffer anti-collision structure was designed. The braking distance is adjusted by adjusting the adjustment structure, and the impact detection and control are realized by combining the positioning sensor and the buffer rubber block to ensure the safe braking of the crane trolley.
This technology ensures the safety and ease of use of the crane trolley, enabling it to avoid collisions in advance and stop in time, thus improving the safety and efficiency of the equipment.
Smart Images

Figure CN224132570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of crane trolley traveling mechanism, specifically to a buffer and anti-collision device for crane trolley traveling mechanism. Background Technology
[0002] The crane trolley traveling mechanism is a crucial component of the crane, primarily responsible for the movement of the trolley on the track. Buffer and anti-collision devices play a vital role in this mechanism, not only protecting equipment and personnel but also improving work efficiency and extending equipment lifespan. Therefore, the selection and installation of buffer and anti-collision devices must be fully considered when designing and maintaining cranes. Existing anti-collision structures can only simply prevent the traveling mechanism from colliding with obstacles; they cannot stop the traveling mechanism in time, resulting in poor practicality. Utility Model Content
[0003] The purpose of this utility model is to provide a buffer and anti-collision device for the traveling mechanism of a crane trolley, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a buffer and anti-collision device for a crane trolley traveling mechanism, comprising a crane trolley traveling mechanism, wherein adjustment structures are symmetrically fixed to both ends of the side wall of the crane trolley traveling mechanism, and buffer and anti-collision structures are fixedly assembled on the outer ends of both adjustment structures.
[0005] Preferably, the adjustment structure includes a support, which is fixedly mounted on the side wall of the crane trolley traveling mechanism. A screw rod is screwed to the inner wall of the support, the outer end of the screw rod is fixedly connected to the buffer and anti-collision structure, and a throttle handle is fixedly mounted on the inner end of the screw rod.
[0006] Preferably, the buffer anti-collision structure includes a positioning sensor, which is fixedly connected to the outer end of the adjustment structure. A hollow cylinder is fixedly mounted on the outer wall of the positioning sensor. A through pipe is installed through the side wall of the hollow cylinder and communicates with the inner cavity of the hollow cylinder. A piston is inserted into the inner wall of the hollow cylinder. A connecting rod is fixedly mounted on the side wall of the piston. The connecting rod passes through the outer end of the hollow cylinder and is fixedly connected to a buffer rubber block. A spring is sleeved on the outer wall of the connecting rod. One end of the spring is fixedly connected to the buffer rubber block, and the other end of the spring is fixedly connected to the outer wall of the hollow cylinder.
[0007] Preferably, the outer wall of the positioning sensor is fitted with a protective sleeve, and the protective sleeve is fixedly connected to the outer wall of the hollow cylinder.
[0008] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the structure, the lateral position of the buffer anti-collision structure can be easily adjusted, thereby adjusting the braking distance between the structure and the obstacle, ensuring the safety of the crane trolley traveling mechanism, and effectively avoiding collisions in advance. Through the setting of the buffer anti-collision structure, it has the characteristics of impact buffering, and can detect the impact and control the crane trolley traveling mechanism to stop. It is convenient to use and highly practical. Attached Figure Description
[0009] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0010] Figure 2 This is a front view of the present invention;
[0011] Figure 3 A three-dimensional schematic diagram of the assembly of the buffer structure and the adjustment structure.
[0012] In the diagram: 1-Crane trolley traveling mechanism, 2-Adjusting structure, 21-Thrust, 22-Screw, 23-Support, 3-Buffer and anti-collision structure, 31-Position sensor, 32-Hollow cylinder, 33-Through pipe, 34-Piston, 35-Connecting rod, 36-Spring, 37-Buffer rubber block, 4-Sheath. Detailed Implementation
[0013] 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.
[0014] Please see Figure 1-3 This utility model provides a buffer and anti-collision device for a crane trolley traveling mechanism, including a crane trolley traveling mechanism 1. Adjustment structures 2 are symmetrically fixed to both ends of the side wall of the crane trolley traveling mechanism 1, and buffer and anti-collision structures 3 are fixedly assembled on the outer ends of the two adjustment structures 2.
[0015] By adjusting structure 2, the lateral position of the buffer anti-collision structure 3 can be easily adjusted, thereby adjusting the braking distance between it and the obstacle, ensuring the safety of the crane trolley traveling mechanism 1, and effectively avoiding collisions in advance. With the setting of the buffer anti-collision structure 3, it has the characteristics of impact buffering, and can detect the impact and control the crane trolley traveling mechanism 1 to stop. It is convenient to use and highly practical.
[0016] The adjustment structure 2 includes a support 23, which is fixedly mounted on the side wall of the crane trolley traveling mechanism 1. A screw rod 22 is screwed to the inner wall of the support 23. The outer end of the screw rod 22 is fixedly connected to the buffer and anti-collision structure 3. A throttle 21 is fixedly mounted on the inner end of the screw rod 22.
[0017] When the adjustment structure 2 is needed, first turn the handle 21 to drive the screw 22 to rotate on the inner wall of the support 23. At the same time, the screw 22 is screwed to the support 23. As the handle 21 rotates, the screw 22 will move laterally on the inner wall of the support 23. Adjust the lateral position of the buffer and anti-collision structure 3 as needed. It has a wide range of applications.
[0018] The buffer anti-collision structure 3 includes a positioning sensor 31, which is fixedly connected to the outer end of the adjustment structure 2. A hollow cylinder 32 is fixedly mounted on the outer wall of the positioning sensor 31. A through pipe 33 is installed through the side wall of the hollow cylinder 32 and is connected to the inner cavity of the hollow cylinder 32. A piston 34 is inserted into the inner wall of the hollow cylinder 32. A connecting rod 35 is fixedly mounted on the side wall of the piston 34. The connecting rod 35 passes through the outer end of the hollow cylinder 32 and is fixedly connected to a buffer rubber block 37. A spring 36 is sleeved on the outer wall of the connecting rod 35. One end of the spring 36 is fixedly connected to the buffer rubber block 37, and the other end of the spring 36 is fixedly connected to the outer wall of the hollow cylinder 32.
[0019] When the buffer rubber block 37 hits the obstacle, the trolley will continue to move, and through inertia, it will drive the position sensor 31 and the hollow cylinder 32 to continue moving, and squeeze the spring 36 to deform and store force. The connecting rod 35 can effectively limit the stability of the displacement of the hollow cylinder 32. At the same time, the detection head of the position sensor 31 approaches the piston 34. After detecting the piston 34, the position sensor 31 reacts and controls the motor on the crane trolley traveling mechanism 1 to stop moving through the controller. The crane trolley traveling mechanism 1 brakes to stop, avoiding collision with the obstacle or equipment frame. If the distance between the piston 34 and the position sensor 31 is far, it means that the distance between the crane trolley traveling mechanism 1 and the obstacle is far, so it will not brake and will not collide with the obstacle. The through pipe 33 can ensure that the piston 34 moves smoothly inside the hollow cylinder 32.
[0020] The outer wall of the positioning sensor 31 is fitted with a protective sleeve 4, and the protective sleeve 4 is fixedly connected to the outer wall of the hollow cylinder 32.
[0021] The protective sleeve 4 serves to protect the positioning sensor 31.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A buffer collision prevention device for a trolley of a crane, characterized in that: The crane trolley traveling mechanism (1) includes an adjustment structure (2) symmetrically fixed at both ends of the side wall of the crane trolley traveling mechanism (1), and a buffer anti-collision structure (3) is fixedly assembled at the outer ends of the two adjustment structures (2). The buffer anti-collision structure (3) includes a positioning sensor (31), which is fixedly connected to the outer end of the adjustment structure (2). A hollow cylinder (32) is fixedly mounted on the outer wall of the positioning sensor (31). A through pipe (33) is installed through the side wall of the hollow cylinder (32). The through pipe (33) is connected to the inner cavity of the hollow cylinder (32). A piston (34) is inserted into the inner wall of the hollow cylinder (32). A connecting rod (35) is fixedly mounted on the side wall of the piston (34). The connecting rod (35) passes through the outer end of the hollow cylinder (32) and is fixedly connected to a buffer rubber block (37). A spring (36) is sleeved on the outer wall of the connecting rod (35). One end of the spring (36) is fixedly connected to the buffer rubber block (37), and the other end of the spring (36) is fixedly connected to the outer wall of the hollow cylinder (32).
2. The buffer anti-collision device of a trolley travelling mechanism of a crane according to claim 1, characterized in that: The adjustment structure (2) includes a support (23), which is fixedly mounted on the side wall of the crane trolley traveling mechanism (1). A screw rod (22) is screwed to the inner wall of the support (23). The outer end of the screw rod (22) is fixedly connected to the buffer anti-collision structure (3). A throttle handle (21) is fixedly mounted on the inner end of the screw rod (22).
3. The buffer anti-collision device of a trolley travelling mechanism of a crane according to claim 1, characterized in that: The outer wall of the positioning sensor (31) is fitted with a protective sleeve (4), and the protective sleeve (4) is fixedly connected to the outer wall of the hollow cylinder (32).