Novel automatic control limiting device for steel moving trolley
The dual-limit positioning system for cold bed steel transfer cars addresses positioning inaccuracies by using vertical and horizontal supports with contact sensors, ensuring precise steel placement and reducing maintenance time.
Patent Information
- Application Number
- CN202422284510.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The front and rear limit devices of existing cold bed steel trolleys are aging or damaged, causing the trolley to fail to move forward or backward in place, and it takes a long time to find the line failure and replace the limit, which affects production efficiency and safety.
A new type of automatic control limiting device for moving steel trolleys is designed, using vertical brackets, horizontal brackets, limit blocks and plugs. Automatic control is achieved through plug-and-removal connections and contact sensors to ensure that the trolleys are parked accurately and commands are transmitted through the PLC system, simplifying the process of replacing limit blocks.
It improves the automatic control accuracy of the steel-moving trolley, reduces the maintenance time of the limiting device, protects the safety of operators, and improves production efficiency and equipment reliability.
Smart Images
Figure CN223097625U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of metallurgical cooling bed equipment, and particularly relates to a new automatic control limit device for a steel transfer trolley. Background Art
[0002] The cooling bed steel transfer trolley in metallurgical enterprises is a device dedicated to transporting and moving cooled steel. The cooling bed is a device used to cool hot-rolled steel in the metallurgical production line. On the cooling bed, after the hot steel is transported and cooled, it needs to be transferred to the storage area or the place for further processing, and the cooling bed steel transfer trolley is required.
[0003] The main task of the cooling bed steel transfer trolley is to pick up the cooled steel from the cooling bed and transport it to a designated location, such as a stacking area or a downstream production line. Through an automatic control system, the trolley can move precisely on the track and automatically stop at the set stations to ensure the accurate placement of the steel.
[0004] The traditional cooling bed steel transfer trolley is automatically controlled by a forward-in-place limit and a backward-in-place limit; after the cooling bed steel transfer trolley finishes collecting steel bars, the trolley will immediately move forward, transport the steel bars from the cooling bed surface to the cooling bed output roller table, and after the forward limit detects that the trolley is in place and the descending is in place, the trolley will immediately retreat to the rear limit; after the rear limit detects that the trolley has retreated in place, the steel transfer trolley will start the next billet loading program.
[0005] The prior art has the following problems:
[0006] 1. There is only one forward and one backward limit for the steel transfer trolley. When they age or are damaged, it may cause the trolley not to move, resulting in steel squeezing or scraping on the cooling bed in a minor case; in a serious case, when the steel transfer trolley does not move forward or backward in place, the steel bars will cause a disordered cooling bed, delaying production time and seriously affecting the steel collection rhythm.
[0007] 2. It takes a long time to find the circuit fault and replace the limit.
[0008] Therefore, a new automatic control limit device for a steel transfer trolley is proposed. Summary of the Utility Model
[0009] The purpose of the utility model is to provide a new automatic control limit device for a steel transfer trolley, which has the function of automatically controlling the limit of the steel transfer trolley, and solves the problems that the forward and backward limits of the steel transfer trolley in the prior art age or are damaged, resulting in the trolley not moving or not moving forward or backward in place, and it takes a long time to find the circuit fault and replace the limit.
[0010] To achieve the above object, the technical solution adopted by the present utility model is that the present utility model provides a new type of automatic control limit device for a steel transfer trolley, including a vertical bracket. One side of the top of the vertical bracket is connected with an extension plate, the extension plate is connected with a horizontal bracket, a slot hole is arranged at the center of the horizontal bracket, a limit block is arranged in the slot hole, a plug is arranged on the limit block, and the main wire is connected to the plug.
[0011] Preferably, the number of the vertical brackets is 2, and the number of the limit posts, extension plates and horizontal brackets is set to 2 corresponding to the number of the vertical brackets. A single vertical bracket, limit post, extension plate and horizontal bracket are connected as a group of brackets, and the two groups of brackets are arranged linearly.
[0012] Preferably, the number of the slot holes is set to 2 corresponding to the number of the horizontal brackets.
[0013] Preferably, the number of the limit blocks is 4, 2 limit blocks are installed in each slot hole, and the number of the plugs is set corresponding to the number of the limit blocks.
[0014] Preferably, the limit block passes through the slot hole and is fixed by screws and spring washers.
[0015] Preferably, the plug and the main wire are connected by plugging and unplugging. The number of the main wires is several, and the main wires are connected to the PLC.
[0016] Preferably, a contact sensor is arranged in the limit block.
[0017] Preferably, a limit post is transversely arranged in the middle of the vertical bracket.
[0018] Preferably, the cross sections of the vertical bracket and the horizontal bracket are both U-shaped.
[0019] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.
[0020] 1. The present utility model is applied to a cooling bed, has a simple structure, is easy to install, occupies a small space, automatically controls the movement of the steel transfer trolley, prevents exceeding the set range, and protects the personal safety of the operators.
[0021] 2. The present utility model has the function of automatically controlling the limit of the steel transfer trolley, solves the problems that the front and rear limits of the steel transfer trolley in the prior art are aged or damaged, resulting in the trolley not moving or not reaching the position in the forward or backward direction, and it takes a long time to find the circuit fault and replace the limit. Description of the Drawings
[0022] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0023] Figure 1 It is a structural diagram of an automatic control limit device for a new type of steel transfer trolley;
[0024] In the above figure, 1 is a vertical bracket, 2 is a limit post, 3 is an extension plate, 4 is a horizontal bracket, 5 is a slot hole, 6 is a limit block, 7 is a plug, and 8 is a main wire. Specific embodiments
[0025] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0027] Embodiment 1, as Figure 1 shown, a new type of automatic control limit device for a steel transfer trolley includes a vertical bracket 1. The vertical bracket 1 is placed on the side wall of the cooling bed to provide support for the overall structure, fix the installation positions of other components, with a simple, stable structure, convenient for installation, and does not occupy extra space.
[0028] One side of the top of the vertical bracket 1 is connected with an extension plate 3. The extension plate 3 is connected with a horizontal bracket 4. The horizontal bracket 4 provides a fixed and supporting position to ensure the precise positioning of the limit device. The horizontal bracket 4 is flexibly installed, occupies a small space, and is convenient for maintenance and adjustment. The extension plate 3 connects the vertical bracket 1 and the horizontal bracket 4, playing a role of a connecting structure. The extension plate 3 is firmly connected, improving the overall stability of the device.
[0029] The center of the horizontal bracket 4 is provided with a slot hole 5, and a limit block 6 is arranged in the slot hole 5. The limit block 6 blocks the forward or backward movement of the trolley, with precise limit and strong durability, preventing the trolley from moving out of the predetermined range. The slot hole 5 provides space for the installation and adjustment of the limit block 6, allowing the limit block 6 to be fixed at the required position, facilitating the adjustment of the position of the limit block 6, and improving the flexibility and accuracy of control. A plug 7 is arranged on the limit block 6, and a main wire 8 is connected to the plug 7. The main wire 8 is conveniently and quickly connected to the plug 7, and the main wire 8 transmits the contact signal of the limit block 6 to the operating system to achieve automated operation.
[0030] The following specifically describes the specific designs of the above key components:
[0031] The number of the vertical brackets 1 is 2, and the numbers of the limit posts 2, the extension plates 3 and the horizontal brackets 4 are set to 2 corresponding to the number of the vertical brackets 1. A single vertical bracket 1, a limit post 2, an extension plate 3 and a horizontal bracket 4 are connected as a group of brackets, and the two groups of brackets are arranged linearly. The two groups of brackets form the front-end and back-end limits of the moving steel trolley.
[0032] The number of the slot holes 5 is set to 2 corresponding to the number of the horizontal brackets 4. Each horizontal bracket 4 is designed with 1 slot hole 5 for installing the limit block 6. The slot hole 5 provides installation and adjustment space for the limiting device, enabling it to adapt to different requirements.
[0033] The number of the limit blocks 6 is 4. Two limit blocks 6 are installed in each slot hole 5, and the number of the plugs 7 is set corresponding to the number of the limit blocks 6. Installing two limit blocks 6 in each slot hole 5 helps with dual control, ensuring that the trolley can accurately stop at the preset position when moving forward and backward, and avoiding failures caused by the failure of a single limit block 6.
[0034] The limit block 6 passes through the slot hole 5 and is fixed by screws and spring washers. The fixing method of the screws and spring washers ensures the stability of the limit block 6, while retaining a certain elastic adjustment space to cope with slight vibrations or deviations.
[0035] The plug 7 and the main wire 8 are connected by plugging and unplugging. The pluggable connection design greatly improves the maintenance convenience. When it is necessary to replace the limit block 6 or the plug 7, it can be quickly operated, reducing the downtime. The number of the main wires 8 is several and they are respectively connected to the plugs 7 at different positions. The main wire 8 is connected to the PLC. The PLC is a programmable logic controller connection, which can receive and send instructions to the trolley to achieve automated operation.
[0036] A contact sensor is arranged in the limit block 6. The contact sensor in the limit block 6 detects the position of the trolley and transmits the signal to the PLC to ensure that the trolley stops accurately and prevent it from exceeding the preset range.
[0037] A limiting column 2 is horizontally arranged in the middle of the vertical bracket 1. The limiting column 2 is used to limit the position of the main line 8 and can also strengthen the structural strength of the vertical bracket 1.
[0038] The cross-sections of the vertical bracket 1 and the horizontal bracket 4 are both U-shaped. The U-shaped cross-section design increases the structural strength, saves materials, and makes installation and maintenance more convenient.
[0039] Through the design that the signal of the trolley's backward movement in place is sent to the PLC in series by two rear limit signals, when one of the rear limit signals for the trolley's backward movement in place is damaged and always on, the trolley can still move backward in place and the backward movement of the trolley is not affected; through the design that the signal of the trolley's forward movement in place is sent to the PLC in parallel by two front limit signals, when one of the front limit signals for the trolley's forward movement in place is damaged and not on, the trolley can still move backward in place and the forward movement of the trolley is not affected; through the plug-and-play design, when replacing the limit block 6, it is not necessary to disassemble the wires, avoiding the process of wire removal and repeated wiring, reducing the time for replacing the limit, avoiding the possibility of wrong wiring, shortening the original operation time of 10 minutes to 5 minutes, improving the work efficiency, and protecting the personal safety of the operator by avoiding the operator being in a high-temperature environment for a long time.
[0040] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0041] The above is only the preferred embodiment of the present utility model and does not limit the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A novel automatic control limit device for a steel transfer trolley, characterized in that, It includes a vertical bracket. One side of the top of the vertical bracket is connected with an extension plate. The extension plate is connected with a horizontal bracket. A slot hole is arranged at the center of the horizontal bracket. A limiting block is arranged in the slot hole. A plug is arranged on the limiting block. The main line is connected to the plug.
2. The automatic control limit device for a new type of steel transfer trolley according to claim 1, characterized in that, The number of the vertical brackets is 2. The number of the limiting columns, the extension plates and the horizontal brackets is set to 2 corresponding to the number of the vertical brackets. A single vertical bracket, a limiting column, an extension plate and a horizontal bracket are connected as a set of brackets. The two sets of brackets are arranged linearly.
3. A novel automatic control limit device for a steel transfer trolley according to claim 2, characterized in that, The number of the slot holes is set to 2 corresponding to the number of the horizontal brackets.
4. A novel automatic control limit device for a steel transfer trolley according to claim 3, characterized in that, The number of the limiting blocks is 4. Two limiting blocks are installed in each slot hole. The number of the plugs is set corresponding to the number of the limiting blocks.
5. The automatic control limit device for a new type of steel transfer trolley according to claim 1, characterized in that, The limiting block passes through the slot hole and is fixed by screws and spring washers.
6. The automatic control limit device for a new type of steel transfer trolley according to claim 1, characterized in that, The plug is connected to the main line in a pluggable manner. The number of the main lines is several. The main lines are connected to the PLC.
7. A novel automatic control limit device for a steel transfer car according to claim 1, characterized in that, A contact sensor is arranged in the limiting block.
8. A novel automatic control limit device for a steel transfer trolley according to claim 1, characterized in that, A limiting column is transversely arranged in the middle of the vertical bracket.
9. The automatic control limit device for a new type of steel transfer trolley according to claim 1, characterized in that, The cross sections of the vertical bracket and the horizontal bracket are both U-shaped.