Quick coupling device of modular rolling mill
By increasing the length of the external ring gear, increasing the spring diameter in the module rolling mill rapid coupling, and designing movable baffle and angular contact ball bearings, the problem of frequent disengagement of the coupling is solved, and the service life and safety of the equipment are improved sex.
Patent Information
- Application Number
- CN202421588195.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-07
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-07-07
AI Technical Summary
When the existing module rolling mill fast coupling is running at high speed, the wear and thin design of the spring hoisting device leads to frequent disconnection of the coupling, causing long-term shutdown of the equipment and safety risks.
By increasing the axial length of the outer ring gear by 30mm, increasing the spring diameter by 20%, and designing a movable baffle and angular contact ball bearings in the center of the roof plate, the structure of the spring hoisting device is improved.
It effectively eliminates the hidden danger of coupling teeth disengagement, improves the service life of the equipment, reduces the equipment's thermal shutdown time and breakage, and reduces safety risks.
Smart Images
Figure CN222513668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a quick coupling device for a module rolling mill. Background Art
[0002] The quick coupling used in the original TMB (reducing and sizing mill) module mill for high-speed wire rolling has certain design defects. Since it is designed to fully realize the rapid replacement of TMB modules, the outer gear sleeve of the quick coupling cancels the outer gear sleeve tooth root step rib limit positioning of the general drum gear coupling to facilitate the rapid connection and free disengagement of the internal and external teeth. However, it cannot be allowed to move axially infinitely, so a spring jacking device is designed at the end of the inner gear sleeve to prevent the disengagement of the internal and external teeth of the coupling transmission. Because the jacking rod head of the spring jacking device is running at high speed, the center lines of the two pairs of wheel sleeves of the coupling are not relatively coincident, resulting in reciprocating motion and constantly hitting the top plate that acts on it, which causes the jacking rod and the top plate to squeeze and rub, causing wear. In addition, due to the thin design of the spring jacking device, the jacking rod and the top plate are sealed in the coupling, which is not easy to detect hidden dangers. Therefore, the TMB quick coupling is often disengaged and damaged, resulting in long-term shutdown and failure. At the same time, when an accident occurs, the coupling suddenly disengages, and the interruption of rolling force transmission causes a large amount of rolled products to accumulate, which can also easily cause sudden safety accidents in high-speed rolling mills, posing a great safety risk. Summary of the invention
[0003] The utility model aims to provide a quick coupling device for a modular rolling mill, which solves the inconvenience of disassembling the entire coupling for checking and replacing a reset spring and a push rod, realizes quick inspection and quick replacement of wearing parts of the modular coupling, and improves equipment maintenance efficiency.
[0004] The technical solution adopted by the utility model is a modular rolling mill quick coupling device, comprising an outer gear ring, a spring lifting device, and a top plate, wherein the transmission teeth inside the outer gear ring are lengthened by 30 mm along the axial direction of the outer gear ring; the spring diameter in the spring lifting device is increased by 20% compared with the original spring diameter; the center of the top plate is connected to a movable baffle by bolts, an angular contact ball bearing is arranged in the center of the movable baffle, and the end of the lifting rod of the spring lifting device is against the end face of the inner ring of the angular contact ball bearing.
[0005] 1. The outer gear ring of the rolling mill side of the original TMB module quick coupling is lengthened by 30mm in the tooth length direction. 2. The spring of the original coupling spring jacking device is designed to be thicker. 3. A movable baffle is designed at the center of the top plate and connected to the top plate with bolts; 4. An angular contact ball bearing is designed and installed at the point where the baffle and the jacking rod of the spring jacking device act.
[0006] Through technical improvements and after on-site debugging and use, the outer gear ring of the new coupling has been lengthened, and after the spring has been enlarged, even if the spring lifting device fails, the inner and outer gear rings can still transmit torque, which effectively eliminates the hidden danger of coupling teeth disengagement. The bearing installed in the center of the new coupling baffle solves the frequent abnormal wear and failure of the reset push rod and baffle of the TMB modular rolling mill's fast coupling. The new coupling top plate is designed to be removable with a central movable baffle to achieve rapid inspection and replacement of the module coupling's wearing parts. Since the implementation of this utility model in July 2017, the service life of the TMB rolling mill's fast coupling has increased by 1 times. Since July, there has not been a single coupling disengagement failure, and the equipment's hot shutdown time has been reduced by 240 minutes per month, and 4 broken parts have been reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model. DETAILED DESCRIPTION
[0008] A modular rolling mill quick coupling device, such as Figure 1 As shown, it includes an outer gear ring 1, a spring lifting device, and a top plate 2. The transmission teeth inside the outer gear ring 1 are lengthened by 30 mm along the axial direction of the outer gear ring; the diameter of the spring 6 in the spring lifting device is 20% larger than the original spring diameter; the center of the top plate is connected to a movable baffle 4 by bolts, and an angular contact ball bearing 3 is arranged in the center of the movable baffle 4, and the end of the lifting rod 5 of the spring lifting device is against the inner ring end face of the angular contact ball bearing 3.
Claims
1. A modular rolling mill quick coupling device, comprising an outer gear ring, a spring lifting device, and a top plate, characterized in that: The transmission teeth inside the outer gear ring are lengthened by 30 mm along the axial direction of the outer gear ring; the diameter of the spring in the spring lifting device is increased by 20% compared with the original spring diameter; the center of the top plate is connected to a movable baffle by bolts, and an angular contact ball bearing is arranged in the center of the movable baffle, and the end of the lifting rod of the spring lifting device is against the end face of the inner ring of the angular contact ball bearing.