Non-contact master controller for controlling blanking chain of steel rolling cooling bed
By installing a contactless master controller on the unloading chain of the steel rolling cooling bed, reliable contactless control is achieved using limit devices and proximity switches, solving the problems of chain swaying and unstable contacts, and improving the operational stability and service life of the equipment.
Patent Information
- Application Number
- CN202520321053.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The return spring of the contact master controller in the existing steel rolling cooling bed unloading chain controller is prone to damage, resulting in unstable signal, large chain sway, and easy damage to limit switches, which affects the normal operation of the equipment, increases spare parts costs and the labor intensity of workers.
The system employs a contactless master controller. By installing limit devices on the output shaft of the reducer of the feeding chain, and using the front and rear limit control panels in conjunction with proximity switches, contactless control is achieved, ensuring reliable operation and preventing chain swaying.
This solved the problem of unstable contact action, improved the service life and reliability of the equipment, and reduced spare parts costs and labor intensity for workers.
Smart Images
Figure CN223718025U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of steel plant equipment, namely a no-contact master controller for controlling the blanking chain of a steel rolling bed. BACKGROUND
[0002] In the prior art, a billet on a steel rolling line is rolled into straight round steel by a rolling mill, cut into 110-meter-long pieces by a double-length flying shear, fed onto a cold bed by a conveying roller device, conveyed to a cold bed output roller by a cold bed unloading trolley, cut into 6-meter-long straight round steel by a cold shear, and packed into 3-ton bales as finished products for customers. The cold bed unloading trolley is a key production device, and its control principle is that a contact master controller is installed on the output shaft of a speed reducer of the blanking chain, an operator controls the start of the blanking chain by operating a handle, the output shaft of the contact master controller is connected to the transmission shaft of the blanking chain, and the limit control disc on the output shaft drives the forward contact switch to close or the backward contact switch to close, thereby controlling the stop of the blanking chain. Because the return spring of the contact master controller is often damaged, the contact action pressure is unstable, the signal is often misreported, and the device cannot be normally used. The installation position is in the hot steel area of the cold bed, a limiting baffle is triggered by a limiting baffle installed by a chain, the forward and backward position signals are obtained, the chain is unstable and shakes greatly, the limiting switch is often damaged or misses the baffle, the device cannot be actuated, the switch needs to be frequently replaced, the cost of spare parts is increased, the labor intensity of workers is increased, and the normal operation of the steel rolling bed is affected. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at the above-mentioned defects and provides a no-contact master controller for controlling the blanking chain of a steel rolling bed.
[0004] The technical solution of the utility model is that a no-contact master controller for controlling the blanking chain of a steel rolling bed is installed on the output shaft of a speed reducer of the blanking chain, a limiting device is installed on the trigger shaft connected to the output shaft, a convex point is arranged on the limiting control disc, the outer end of the forward limiting control disc corresponds to a forward position proximity switch, and the outer end of the backward limiting control disc corresponds to a backward position proximity switch.
[0005] The limiting device is placed in a square iron box.
[0006] The utility model has the advantages that the control disc structure is installed on the trigger shaft, the influence of the shaking of the chain is overcome, the problem of unstable contact action is eliminated, the high-temperature problem on site can be solved, the action is reliable, and the service life is improved.
[0007] The embodiments of the present application will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 is a structural diagram of the present application.
[0009] Figure 2 is a structural diagram of the convex position. DETAILED DESCRIPTION
[0010] Referring to Figure 1 , 2 , the component names are as follows: trigger shaft 1, front limit control disc 2, front limit control disc convex point 3, forward to position proximity switch 4, backward to position proximity switch 5, rear limit control disc convex point 6, rear limit control disc 7, front limit control disc convex point fixing bolt hole 8.
[0011] Referring to Figure 1 , 2 , a no-contact master controller for a steel rolling cold bed blanking chain is provided with a limiting device on the output shaft of the speed reducer of the blanking chain, the limiting device is provided with a front limit control disc 2 and a rear limit control disc 7 on the trigger shaft 1 connected with the output shaft and the accelerator, the disc of the front limit control disc 2 and the rear limit control disc 7 is provided with a convex point, the convex point is the front limit control disc convex point 3 and the rear limit control disc convex point 6 respectively, the convex point is a sensing point and can be adjusted in position, the outer end of the front limit control disc 2 corresponds to the forward to position proximity switch 4, and the outer end of the rear limit control disc 7 corresponds to the backward to position proximity switch 5. Through analysis of the field conditions and according to the actual needs of the cold bed action, a no-contact master controller is made by using the characteristics of the proximity switch, the output level change signal is controlled, the position can be adjusted by 360 degrees, and the field limiting requirements are met. All devices are placed in a square iron box, mainly including the trigger shaft 1, the front limit control disc 2, the forward to position proximity switch 4, the rear limit control disc 7 and the backward to position proximity switch 5. The trigger shaft 1 is connected with the output shaft of the speed reducer and rotates synchronously.
[0012] Referring to Figure 2 , taking the front limit control disc 2 as an example, the front limit control disc 2 is provided with front limit control disc convex point fixing bolt holes 8 along the circumference, the limit control disc convex point 3 is fixed at different positions by bolts, and the position is adjusted. This structure is also applicable to the rear limit control disc 7.
[0013] Use method or working principle: the inside of the speed reducer adopts a worm gear reduction mechanism, the output shaft end is provided with a joint, drives a newly made limiting device, and the control of the actual position of the output is completed. According to the use requirement, the forward position and the backward position are reached, the output shaft rotates a half circle, is converted into the rotation of the trigger shaft 1 less than 360 degrees through the reduction mechanism (3:1), two limit control discs are installed on the trigger shaft 1, the disc has a convex point, can induct the adjacent proximity switch, the output level change signal is provided, the convex point can provide 360 degrees of adjustment position, meets the on-site limiting requirement. According to the stroke adjustment, when reaching the front limit position, the forward position proximity switch 4 acts, when reaching the rear limit position, the backward position proximity switch 5 acts. The service life can reach 24 months.
[0014] The above description is only a specific embodiment of the utility model, and various illustrations do not constitute limitation to the essential content of the utility model.
Claims
1. A contactless master controller for controlling a steel mill downcoiler chain, characterized in that The application relates to a position-limiting device for the output shaft of a speed reducer of a blanking chain, which comprises a trigger shaft (1) connected with the output shaft, a front limit control disc (2) and a rear limit control disc (7) which are arranged at intervals on the trigger shaft (1), and a protrusion on the front limit control disc (2) and the rear limit control disc (7).
2. A contactless master controller for controlling a coil handling chain of a steel rolling cooling bed according to claim 1, characterized in that The position-limiting device is placed in a square iron box.