Anti-overturning device of steel coil trolley
By installing an anti-rollover device on the steel coil trolley, the trolley can be automatically stopped using a triggering mechanism and limit switches. This solves the rollover problem caused by misalignment between the center of the steel coil and the uncoiling machine mandrel, thus improving production safety and efficiency.
Patent Information
- Application Number
- CN202423220400.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-25
AI Technical Summary
During the coil winding process, the center of the coil may not align with the center of the uncoiler mandrel due to the instability of equipment accuracy and measurement signals. This can easily lead to coil overturning accidents, resulting in scrapped coils and equipment damage, which in turn affects production efficiency.
Design a steel coil trolley anti-tipping device, including a support base, a limit switch and a triggering mechanism. The triggering mechanism triggers the limit switch when the steel coil and the trolley saddle are relatively displaced, generating an electrical signal to stop the trolley and avoid tipping accidents.
This effectively avoids steel coil overturning accidents, reduces equipment damage and downtime, and improves production safety and efficiency.
Smart Images
Figure CN223687749U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of steel coil loading technology, in particular to a steel coil trolley anti-overturning device. BACKGROUND
[0002] In the field of steel, metallurgy or coil processing, the steel coil trolley serves as a carrier of the steel coil, and is responsible for quickly, efficiently and safely transporting large steel coils produced on the production line to designated locations, such as warehouses, processing workshops, etc.
[0003] When the steel coil is placed on the trolley saddle, the steel coil diameter measuring device measures the diameter of the steel coil, and the steel coil trolley lifts the steel coil through the lifting action of the hydraulic cylinder. At this time, the displacement sensor of the trolley records the lifting stroke, and adjusts the height as needed to ensure that the center of the steel coil is horizontally aligned with the center of the decoiler mandrel. The trolley stops moving and places the steel coil on the decoiler drum when it reaches the set position, and the decoiler completes the decoiling work.
[0004] When the decoiler mandrel is retracted, the diameter is 598mm, and the inner diameter of the steel coil is generally 610mm, that is, in the ideal state, the gap between the upper and lower edges of the decoiler mandrel and the upper and lower edges of the steel coil inner diameter is 6mm. Due to equipment precision, measurement signal stability and mechanical clearance, it cannot be guaranteed that the center of the steel coil and the center of the decoiler mandrel are on the same horizontal line before loading. When the equipment fails and the diameter measurement is inaccurate, it is easy to cause the deviation between the center of the steel coil and the center of the decoiler mandrel to exceed 6mm. At this time, if the device fails to diagnose the fault or the operator fails to discover the large deviation in time, it will cause the decoiler mandrel and the steel coil to collide during the automatic loading process. The steel coil cannot be inserted into the decoiler mandrel, and the relative displacement between the steel coil and the trolley saddle will eventually cause the steel coil to fall off the trolley saddle and fall into the trolley pit, causing a serious accident. A 20T steel coil is scrapped, the local equipment of the trolley is damaged, and each time the accident is handled, the production is stopped for about 4 hours, the output is affected by about 400T, and the yield and production rhythm are seriously affected. CONTENT OF THE INVENTION
[0005] The purpose of the present application is to provide a steel coil trolley anti-overturning device that can automatically stop the loading process in time when the center of the steel coil and the center of the decoiler mandrel are not on the same horizontal line, thereby avoiding the occurrence of overturning accidents.
[0006] The present application provides a steel coil trolley anti-overturning device, which adopts the following technical solutions:
[0007] The steel coil trolley anti-overturning device comprises a support seat, a travel switch and a triggering mechanism, the support seat is arranged on a trolley saddle, the travel switch is arranged on the support seat, the triggering mechanism comprises a first guide cylinder, a second guide cylinder, a push rod, a spring and a limiting piece, the first guide cylinder and the second guide cylinder are both arranged on the support seat, the first guide cylinder is located between the second guide cylinder and the travel switch, the push rod is movably arranged in the first guide cylinder and the second guide cylinder, the spring is sleeved on the push rod, the limiting piece is arranged on the push rod, and the spring is pre-pressed between the first guide cylinder and the limiting piece, and the limiting piece abuts against the second guide cylinder.
[0008] Preferably, the limiting piece comprises a bolt and a nut, one end of the bolt is movably arranged in the push rod, and the nut is used for fixing the bolt on the push rod.
[0009] Preferably, the limiting piece is a nut, the push rod has an external thread, and the limiting piece is threadedly sleeved on the outside of the push rod.
[0010] Preferably, the support seat comprises a support plate and a mounting plate, the support plate is arranged on the trolley saddle, the first guide cylinder and the second guide cylinder are both arranged on the support plate, the mounting plate is arranged on the side of the support plate, the mounting plate is located on the side of the trolley saddle, and the travel switch is arranged on the mounting plate.
[0011] Preferably, the support plate is welded and fixed between the trolley saddle, and the support plate is welded and fixed between the mounting plate.
[0012] Preferably, the first guide cylinder and the second guide cylinder are both fixed on the support seat in a welded manner.
[0013] Preferably, the mounting plate is formed by bending a profile.
[0014] Compared with the prior art, the application has the following beneficial effects:
[0015] The application has the characteristics of simple structure, long maintenance period, strong anti-interference ability and the like, does not interfere with other devices, only has the actions of retreating and self-resetting, and will not be triggered under normal circumstances, has a low action frequency, and basically does not need to be maintained. When the coil is wound, if the center of the steel coil and the center of the uncoiler core shaft are not on the same horizontal line, the steel coil and the trolley saddle are relatively displaced, the steel coil pushes the push rod to move to the side close to the travel switch and triggers the travel switch to act, the travel switch action brings a change in the electric signal, the change in the electric signal enters the production line control system to stop the trolley from continuing to run, so that the overturning accident is prevented. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0017] Figure 1 The installation structure schematic view of some embodiments of the present application;
[0018] Figure 2 The structure schematic view of embodiment one of the present application;
[0019] Figure 3 The structure schematic view of embodiment two of the present application.
[0020] The reference signs are respectively:
[0021] 1, support seat; 2, travel switch; 3, trigger mechanism; 4, trolley saddle; 5, first guide cylinder; 6, second guide cylinder; 7, push rod; 8, spring; 9, limiting piece; 10, bolt; 11, nut; 12, support plate; 13, mounting plate. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.
[0024] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0026] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] Embodiment one
[0029] As shown in Figure 1 and Figure 2 The steel coil trolley anti-unwinding device described in the embodiments of the present application is applied to the tail end of the trolley saddle 4. The anti-unwinding device comprises a support seat 1, a travel switch 2 and a triggering mechanism 3. The support seat 1 is arranged on the trolley saddle 4, and the travel switch 2 is arranged on the support seat 1. The travel switch 2 adopts a self-resetting action handle, and the contact adopts a normally closed point. The triggering mechanism 3 comprises a first guide cylinder 5, a second guide cylinder 6, a push rod 7, a spring 8 and a limiting piece 9. The first guide cylinder 5 and the second guide cylinder 6 are both arranged on the support seat 1. The first guide cylinder 5 is located between the second guide cylinder 6 and the travel switch 2. The push rod 7 is movably arranged in the first guide cylinder 5 and the second guide cylinder 6. The first guide cylinder 5 and the second guide cylinder 6 support and guide the push rod 7, so as to ensure that the push rod 7 moves back and forth in a straight line. The spring 8 is sleeved on the push rod 7, and the limiting piece 9 is arranged on the push rod 7. The spring 8 is pre-pressed between the first guide cylinder 5 and the limiting piece 9, and the limiting piece 9 abuts against the second guide cylinder 6.
[0030] During the coiling operation, if the center of the steel coil is not on the same horizontal line as the center of the uncoiler mandrel, and the steel coil and the trolley saddle 4 are relatively displaced, the steel coil will push the push rod 7 to move closer to the limit switch 2 and trigger the limit switch 2 to act. At this time, the spring 8 is in a compressed state. The action of the limit switch 2 brings about a change in the electrical signal. After the change in the electrical signal enters the production line control system, the trolley stops running, thereby preventing the overturning accident from occurring. After the steel coil is re-coiled, the push rod 7 returns to the initial state under the action of the spring 8's rebound force, and the limit switch 2 resets.
[0031] In this embodiment, the limiting member 9 includes a bolt 10 and a nut 11. One end of the bolt 10 is movably inserted through the push rod 7, and the nut 11 is used to fix the bolt 10 on the push rod 7. The threaded fixing method facilitates disassembly and assembly.
[0032] In this embodiment, the support base 1 includes a support plate 12 and a mounting plate 13. The support plate 12 is disposed on the trolley saddle 4. The first guide cylinder 5 and the second guide cylinder 6 are both disposed on the support plate 12. The mounting plate 13 is disposed on the side of the support plate 12 and is located on the side of the trolley saddle 4. The limit switch 2 is disposed on the mounting plate 13.
[0033] In this embodiment, to improve the stability of the connection between the support plate 12 and the trolley saddle 4, the support plate 12 is welded and fixed to the trolley saddle 4, and the support plate 12 is welded and fixed to the mounting plate 13.
[0034] In this embodiment, in order to improve the stability of the connection between the support base 1 and the first guide cylinder 5, and between the support base 1 and the second guide cylinder 6, the first guide cylinder 5 and the second guide cylinder 6 are both fixed to the support base 1 by welding.
[0035] In this embodiment, the mounting plate 13 is formed by bending profiles, which can recycle and reuse scrap steel produced during production.
[0036] Example 2
[0037] like Figure 3 As shown, the difference from Embodiment 1 is that in this embodiment, the limiting member 9 is a nut 11, the push rod 7 has an external thread, and the limiting member 9 is threaded onto the outside of the push rod 7. During assembly, the spring 8 is first placed between the first guide cylinder 5 and the second guide cylinder 6, and then the push rod 7 is made to pass through the first guide cylinder 5 and the spring 8. Then, the limiting member 9 is positioned with the help of external tools and the push rod 7 is rotated continuously until the assembly between the limiting member 9 and the push rod 7 is completed.
[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A device for preventing steel coil trolley from tipping over, characterized in that: The device includes a support base, a limit switch, and a triggering mechanism. The support base is mounted on a trolley saddle, and the limit switch is mounted on the support base. The triggering mechanism includes a first guide cylinder, a second guide cylinder, a push rod, a spring, and a limiting member. Both the first and second guide cylinders are mounted on the support base. The first guide cylinder is located between the second guide cylinder and the limit switch. The push rod movably passes through the first and second guide cylinders. The spring is sleeved on the push rod, and the limiting member is mounted on the push rod. The spring is pre-compressed between the first guide cylinder and the limiting member, and the limiting member abuts against the second guide cylinder.
2. The anti-tipping device for a steel coil trolley according to claim 1, characterized in that: The limiting component includes a bolt and a nut. One end of the bolt is movably inserted through the push rod, and the nut is used to fix the bolt on the push rod.
3. The anti-tipping device for a steel coil trolley according to claim 1, characterized in that: The limiting component is a nut, the push rod has external threads, and the limiting component is threaded onto the outside of the push rod.
4. The anti-tipping device for a steel coil trolley according to claim 1, characterized in that: The support base includes a support plate and a mounting plate. The support plate is mounted on the trolley saddle. The first guide cylinder and the second guide cylinder are both mounted on the support plate. The mounting plate is located on the side of the support plate and on the side of the trolley saddle. The limit switch is mounted on the mounting plate.
5. The anti-tipping device for a steel coil trolley according to claim 4, characterized in that: The support plate is welded and fixed to the trolley saddle, and the support plate is welded and fixed to the mounting plate.
6. The anti-tipping device for a steel coil trolley according to claim 4, characterized in that: Both the first guide cylinder and the second guide cylinder are fixed to the support base by welding.
7. The anti-tipping device for a steel coil trolley according to claim 4, characterized in that: The mounting plate is formed by bending profiles.