Collision early warning device for monorail hoist
By designing a buffer structure and linking it with an acceleration sensor on the monorail crane, automatic deceleration and real-time early warning of the crane are achieved, solving the problem of collisions of the monorail crane in narrow spaces and improving the safety and service life of the equipment.
Patent Information
- Application Number
- CN202520258681.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-18
AI Technical Summary
When existing monorail cranes operate in confined spaces, especially when multiple pieces of equipment are working simultaneously, it is difficult to accurately control the safe distance, which can easily lead to collisions. Existing warning devices lack effective buffering and deceleration mechanisms, making it impossible to prevent collisions in time, resulting in increased equipment damage and safety risks.
A collision warning device for monorail cranes was designed, which includes a buffer structure and an acceleration sensor. Automatic deceleration and buffering are achieved through the linkage of rubber blocks, dampers and threaded columns. Combined with alarm lights and sensors, it provides real-time warnings to ensure equipment safety.
It effectively avoids crane collisions, reduces equipment wear, improves operational stability and safety, lowers the probability of accidents, and increases operational efficiency.
Smart Images
Figure CN223737546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane equipment safety technology, and in particular to a collision warning device for a monorail crane. Background Technology
[0002] Monorail cranes are a type of transportation equipment widely used in factories, warehouses, and other places. They achieve efficient material transportation through a single track and have advantages such as simple structure, low cost, and convenient operation. In narrow spaces, monorail cranes can move flexibly, improving work efficiency. However, because the speed is not easy to control during operation, especially when multiple cranes are operating at the same time, the risk of collision between cranes increases. Therefore, in order to ensure the safety of operation, it is particularly important to design an effective early warning device.
[0003] When existing monorail cranes operate in confined spaces, especially when multiple machines are working simultaneously, it is difficult to precisely control the safe distance between them, which can easily lead to them getting too close or even colliding. Although some early warning devices have basic proximity alarm functions, they have revealed several shortcomings in practical applications. For example, many devices can only issue simple alarm signals after the cranes make contact or when the distance is too close, but they lack effective buffering and deceleration mechanisms. They cannot provide timely shock absorption in high-speed operation or emergency situations. This delayed response cannot effectively prevent collisions during high-speed operation. Once a collision occurs, it often causes significant impact and damage to the equipment, increasing maintenance costs. In addition, frequent collisions not only affect the lifespan of the equipment, but also bring potential risks of personnel injury and work interruption, seriously affecting production efficiency. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a collision warning device for monorail cranes, which aims to improve the situation.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a monorail crane collision warning device, comprising a track, a slider slidably connected to the outer wall of the track, a fixed frame fixedly connected to one side of the slider, a docking frame slidably connected inside the fixed frame, a fixed column fixedly connected inside the fixed frame, the fixed column slidably connected inside the docking frame, a spring sleeved on the outer wall of the fixed column, one end of the spring fixedly connected inside the fixed frame, the other end of the spring fixedly connected to one side of the docking frame, a threaded column rotatably connected inside the fixed column, the threaded column threadedly connected inside the docking frame, multiple eccentric wheels fixedly connected to the outer wall of the threaded column, and a collision component provided on the other side of the slider.
[0006] As a further description of the above technical solution:
[0007] The collision component includes a second docking frame, and a rubber block is slidably connected inside the second docking frame.
[0008] As a further description of the above technical solution:
[0009] A damper is installed inside the second docking frame, and the output end of the damper is fixedly connected to one side of the rubber block.
[0010] As a further description of the above technical solution:
[0011] A second fixing frame is fixedly connected to the outer wall of the slider, and a symmetrical inclined block is fixedly connected inside the second fixing frame.
[0012] As a further description of the above technical solution:
[0013] Rolling balls are arranged between the inclined blocks, and sensors are arranged inside the inclined blocks.
[0014] As a further description of the above technical solution:
[0015] The top of the slider is provided with air tubes arranged in a ring array.
[0016] As a further description of the above technical solution:
[0017] An alarm light is provided on the top of the slider, and the alarm light is electrically connected to the sensor.
[0018] As a further description of the above technical solution:
[0019] The bottom of the slider is equipped with a lifting device.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the contact buffer structure of the top slide rail is used to achieve the following: when two cranes are too close on the slide rail, the top structure of the slide rail will make contact first, activating the buffer and deceleration device, which will automatically decelerate and buffer the crane with excessive speed behind, thus avoiding collision. This structure not only solves the safety hazard when cranes are too close, but also effectively reduces the wear and tear on the equipment caused by collision, and improves the stability of operation and the service life of the equipment.
[0022] 2. In this utility model, through the design of the ramp and the rolling ball structure, when the crane accelerates too fast, the rolling ball rolls towards the ramp equipped with a sensor, triggering the sensor to issue an alarm. This design solves the problem of not being able to detect when the crane's acceleration exceeds the limit in time, and provides real-time reminders to the operator to avoid the risks caused by excessive acceleration. This alarm mechanism provides early warning for operation, improves the safety of crane operation, and reduces the probability of accidents. Attached Figure Description
[0023] Figure 1 This is a perspective view of a collision warning device for a monorail crane proposed in this utility model;
[0024] Figure 2 This is a cross-sectional view of the fixed frame and the docking frame of a monorail crane collision warning device proposed in this utility model;
[0025] Figure 3 This is a second cross-sectional view of the docking frame of a collision warning device for a monorail crane proposed in this utility model;
[0026] Figure 4 This is a cross-sectional view of the fixed frame of a monorail crane collision warning device proposed in this utility model.
[0027] Legend:
[0028] 1. Track; 2. Slider; 3. Fixed frame one; 4. Connecting frame one; 5. Fixed column; 6. Spring; 7. Threaded column; 8. Eccentric wheel; 9. Connecting frame two; 10. Rubber block; 11. Damper; 12. Fixed frame two; 13. Inclined block; 14. Sensor; 15. Air pipe; 16. Alarm light; 17. Lifting device; 18. Ball bearing. Detailed Implementation
[0029] 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.
[0030] Reference Figures 1-3 An embodiment of this utility model provides a single-rail crane collision warning device, including a track 1, a slider 2 slidably connected to the outer wall of the track 1, a fixed frame 3 fixedly connected to one side of the slider 2, a docking frame 4 slidably connected inside the fixed frame 3, a fixed column 5 fixedly connected inside the fixed frame 3, the fixed column 5 slidably connected inside the docking frame 4, a spring 6 sleeved on the outer wall of the fixed column 5, one end of the spring 6 fixedly connected inside the fixed frame 3, the other end of the spring 6 fixedly connected to one side of the docking frame 4, a threaded column 7 rotatably connected inside the fixed column 5, the threaded column 7 threadedly connected inside the docking frame 4, a plurality of eccentric wheels 8 fixedly connected to the outer wall of the threaded column 7, and a collision component provided on the other side of the slider 2, the collision component including a docking frame 9, a rubber block 10 slidably connected inside the docking frame 9, a damper 11 provided inside the docking frame 9, the output end of the damper 11 fixedly connected to one side of the rubber block 10;
[0031] Specifically, when one slider 2 accidentally collides with another slider 2 due to excessive speed, the equipment's buffering and shock absorption mechanism immediately activates to avoid structural damage and equipment failure caused by the collision. At this time, the docking frame 4 passively moves forward until it contacts the rubber block 10 located in front of it. The rubber block 10, utilizing its high elasticity and buffering performance, acts as the first protective barrier, achieving initial buffering through the compression and retraction of the rubber material. In this instant, the rubber block 10 retracts inward, gently absorbing some of the impact force and effectively reducing the severe impact caused by the direct collision.
[0032] As the rubber block 10 completes its initial buffering, the docking frame 4 begins to press further against the damper 11, and by applying additional force to the damper 11, a more effective shock absorption effect is achieved. This force transmission enables the damper 11 to effectively absorb and disperse the remaining impact energy, thereby reducing the collision intensity between the sliders. During this process, the docking frame 4 is subjected to a reaction force and gradually retracts backward, partially retracting into the fixed frame 3. During this action, the threaded column 7 also begins to rotate due to its threaded structure relationship with the docking frame 4, thereby further allowing the docking frame 4 to retract back to the set position.
[0033] At the same time, the rotation of the threaded column 7 drives the eccentric wheel 8, causing the eccentric wheel 8 to come into contact with the track 1; the friction between the eccentric wheel 8 and the track 1 generates an additional deceleration effect, ensuring that the slider 2 decelerates smoothly during its movement after the collision; through this complex and precise linkage structure, the system effectively controls the speed of the slider 2, avoiding continuous collisions or secondary impacts caused by excessive speed.
[0034] After the collision between the two sliders 2 gradually stops, the system does not stop working. At this time, the spring 6 accumulates the elastic potential energy generated by the compression, ready to be released after the collision is resolved. At this moment, the spring 6 quickly returns to its original state, and with the help of the elastic potential energy, pushes the docking frame 4 back to its original position. At the same time, the threaded column 7 also rotates in the opposite direction as the docking frame 4 returns to its original position, causing the eccentric wheel 8 to gradually disengage from the track 1, thus ending the deceleration process and allowing the slider 2 to return to normal operation.
[0035] Reference Figure 1 and Figure 4 A fixed frame 12 is fixedly connected to the outer wall of the slider 2. A symmetrical inclined block 13 is fixedly connected inside the fixed frame 12. A ball 18 is arranged between the inclined blocks 13. A sensor 14 is arranged inside the inclined block 13. An air tube 15 arranged in a ring array is arranged on the top of the slider 2. An alarm light 16 is arranged on the top of the slider 2. The alarm light 16 is electrically connected to the sensor 14.
[0036] Specifically, during the hoisting operation of the equipment, the corresponding slider 2 will slide smoothly along the predetermined track 1; however, when the operating acceleration of the equipment suddenly increases and exceeds the normal threshold, it often produces adverse consequences; at this time, the rolling ball 18 inside the device will move in the opposite direction of the running direction due to inertia and roll on the inclined block 13; the purpose of this design is to sense the change in the acceleration of the equipment through the displacement of the rolling ball 18.
[0037] If the acceleration of the equipment increases further and exceeds the safe speed limit set by the system, the rolling ball 18 will continue to roll and eventually pass the position of the sensor 14. When the rolling ball 18 passes the sensor 14, the sensor 14 immediately detects this change and sends a signal. Then, the system will trigger the alarm light 16 to flash and sound an alarm to remind the operator that the current operating acceleration of the equipment has exceeded the safe range and there is a potential risk.
[0038] This alarm mechanism is designed to not only monitor the equipment's operating status in real time during hoisting operations, but also issue warnings when necessary to prevent safety hazards caused by excessive acceleration. Through the reasonable arrangement and linkage control of key components such as the ball bearing 18, sensor 14, and alarm light 16, the entire device has the functions of self-monitoring and early warning, which greatly improves the safety and reliability of operation.
[0039] Reference Figure 1 The bottom of slider 2 is equipped with a lifting device 17;
[0040] Specifically, the lifting device 17 can be used to suspend goods for transportation.
[0041] Working principle: When the equipment is performing hoisting operations, the corresponding slider 2 begins to slide along the track 1. When the acceleration is too fast, the ball 18 will roll onto the inclined block 13 in the opposite direction of the running direction. If the acceleration exceeds the limit speed, the corresponding ball 18 will roll past the position of the sensor 14. At this time, the sensor 14 detects the rolling of the ball 18 and then issues an alarm through the alarm light 16, indicating that the equipment is accelerating too fast. When one slider 2 collides with another slider 2 due to excessive speed, the corresponding docking frame 4 will contact the position of the rubber block 10. At this time, the rubber material of the rubber block 10 provides the first buffer, and the rubber block 10 retracts inward, thereby damping the impact. The device 11 applies force to achieve shock absorption. At the same time, the docking frame 4 is subjected to a reaction force, which causes it to retract into part of the fixed frame 3. At this time, the threaded column 7, due to its threaded relationship with the docking frame 4, begins to rotate, allowing the docking frame 4 to retract. Under the restriction of the fixed column 5, the docking frame 4 simultaneously exerts a squeezing force on the spring 6. The rotating threaded column 7 can also drive the eccentric wheel 8 to contact the track 1, thereby decelerating. When the two no longer collide after deceleration, the corresponding spring 6 releases its own elastic potential energy, causing the docking frame 4 to return to its original position. At the same time, the threaded column 7 rotates back, causing the eccentric wheel 8 to no longer contact the track 1 for deceleration, and it resumes normal operation.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A monorail hoist collision warning device, comprising a track (1), characterized in that: The outer wall of the track (1) is slidably connected with a sliding block (2), one side of the sliding block (2) is fixedly connected with a fixed frame one (3), the inside of the fixed frame one (3) is slidably connected with a docking frame one (4), the inside of the fixed frame one (3) is fixedly connected with a fixed column (5), the fixed column (5) is slidably connected in the inside of the docking frame one (4), the outer wall of the fixed column (5) is sleeved with a spring (6), one end of the spring (6) is fixedly connected in the inside of the fixed frame one (3), the other end of the spring (6) is fixedly connected on one side of the docking frame one (4), the inside of the fixed column (5) is rotatably connected with a threaded column (7), the threaded column (7) is threadedly connected in the inside of the docking frame one (4), the outer wall of the threaded column (7) is fixedly connected with a plurality of eccentric wheels (8), the other side of the sliding block (2) is provided with a collision assembly.
2. The monorail crane collision warning device according to claim 1, characterized in that: The collision assembly comprises a docking frame two (9), the inside of the docking frame two (9) is slidably connected with a rubber block (10).
3. The monorail crane collision warning device according to claim 2, characterized in that: The inside of the docking frame two (9) is provided with a damper (11), the output end of the damper (11) is fixedly connected on one side of the rubber block (10).
4. The collision warning device for monorail hoist according to claim 1, characterized in that: The outer wall of the sliding block (2) is fixedly connected with a fixed frame two (12), the inside of the fixed frame two (12) is fixedly connected with left-right symmetrical inclined blocks (13).
5. The monorail crane collision warning device according to claim 4, characterized in that: The inclined blocks (13) are provided with a rolling ball (18) between them, and the inside of the inclined blocks (13) is provided with an inductor (14).
6. The monorail hoist collision warning device of claim 1, wherein: The top of the sliding block (2) is provided with air tubes (15) arranged in an annular array.
7. The monorail hoist collision warning device of claim 1, wherein: The top of the sliding block (2) is provided with an alarm lamp (16), and the alarm lamp (16) and the inductor (14) are electrically connected.
8. The monorail hoist collision warning device of claim 1, wherein: The bottom of the sliding block (2) is provided with a lifting appliance (17).