Unlock instant, AI-driven research and patent intelligence for your innovation.
Fault detection device and method for lifting screw
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A lifting screw and fault detection technology, applied in the field of steel rolling, can solve problems such as affecting the quality of the strip steel, inconsistency between the reduction amount of the bending roll or straightening roll of the tension leveler and the set value, and failure to detect the failure of the lifting screw.
Active Publication Date: 2021-11-19
SHOUGANG JINGTANG IRON & STEEL CO LTD
View PDF12 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0005] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a fault detection device and method for the lifting screw, which is used to solve the problem that the failure of the lifting screw cannot be detected in the prior art, which leads to the bending roller of the tension leveler or The actual reduction of the straightening roller is inconsistent with the set value, which affects the technical problem of the strip quality
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] This embodiment provides a fault detection device for a lifting lead screw, such as figure 1 As shown, the device includes: a detection switch 1, a blocking part 2, a reduction amount code detector 3, a programmable logic controller PLC and a host computer 4; wherein,
[0032] The shielding part 2 is installed on the top of the lifting screw 5 to provide a trigger signal for the detection switch 1; the shielding part 2 can be an L-shaped block.
[0033] The detection switch 1 is installed on one side of the lifting screw 5 (specifically, one side of the movement track of the lifting screw 5), and is used for detecting the The trigger signal triggers the switch signal, and sends the switch signal to the PLC; the preset detection interval is the operation interval corresponding to the normal operation of the lifting screw 5, and the height of the preset detection interval is 40 mm.
[0034] The reduction amount encoder detector 3 is installed on the motor 6, and is used ...
Embodiment 2
[0041] This embodiment provides a fault detection method for a lifting lead screw, such as figure 2 As shown, the methods include:
[0042] S110, using the blocking component to provide a trigger signal for the detection switch, so that during the movement of the lifting screw, the detection switch can trigger a switch signal according to the trigger signal within a preset detection interval, and send the The switch signal is sent to the programmable logic controller PLC;
[0043] Can refer to figure 1 , the shielding part is installed on the top of the lifting screw, and the shielding part can be an L-shaped block. The detection switch is installed on one side of the lifting screw, specifically on one side of the movement track of the lifting screw.
[0044] Use the blocking member to provide a trigger signal for the detection switch, so that during the movement of the lifting screw, the detection switch can trigger the switch signal according to the trigger signal within t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The present invention provides a fault detection device and method for a lifting lead screw. The device includes: a shielding component provides a trigger signal for a detection switch; the detection switch triggers a switch signal according to the trigger signal during the movement of the lifting lead screw, and sends the switch signal to to the PLC; the reduction code detector collects the position data of the lifting screw according to the preset cycle, and sends the position data to the PLC; the PLC judges whether the position data received in the current cycle is consistent with the position data received in the previous cycle, If they are inconsistent, the trigger count enable signal is in an active state, so that the count can be performed when the switch signal is converted from the first signal to the second signal; it is judged whether the accumulated value of the count exceeds the preset alarm value, and if it exceeds, the upward The position computer sends an alarm message; in this way, it can be quickly determined that the axial movement of the lifting screw is faulty, and it can be repaired in time to ensure the quality of the strip.
Description
technical field [0001] The invention belongs to the technical field of steel rolling, and in particular relates to a fault detection device and method for a lifting lead screw. Background technique [0002] In the field of steel rolling, the lifting device of the tension leveling machine is used to fine-tune the lower roll box of the bending roll and the lower roll box of the straightening roll, and then adjust the reduction amount of the straightening unit or bending unit to meet the process requirements of different specifications. [0003] The lifting device of the tension leveling machine is an anti-rotation worm gear lifting mechanism, including: a worm gear and a lifting screw. During the working process, the motor drives the worm to rotate, and the worm drives the worm wheel to achieve deceleration. The center of the worm wheel is an internal thread structure, and the lifting screw matches the worm wheel. When the worm wheel rotates, it drives the lifting screw to mov...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More