Non-stop variable speed gear box for coiler with big reel or large tension

A technology of variable speed gearboxes and coilers, which is applied in the direction of gear transmissions, belts/chains/gears, mechanical equipment, etc., which can solve the problems that the variable speed gearboxes cannot achieve non-stop gear shifting, and achieve the effect of reducing friction

Active Publication Date: 2009-12-23
NANJING HIGH SPEED & ACCURATE GEAR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the traditional transmission gearboxes for large reels and large tension coilers in the metallurgical industry cannot realize non-stop gear shifting.

Method used

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  • Non-stop variable speed gear box for coiler with big reel or large tension
  • Non-stop variable speed gear box for coiler with big reel or large tension
  • Non-stop variable speed gear box for coiler with big reel or large tension

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Embodiment Construction

[0025] The accompanying drawings disclose the specific structures of the embodiments of the present invention without limitation, and the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Depend on image 3 It can be seen that the distance from the edge of the annular outer friction ring groove 9 on the gear 2 to the axis center is greater than the distance from the bottom of the annular outer friction ring groove 9 to the axis center, and the groove wall from the edge of the annular outer friction ring groove 9 to the groove bottom is friction Surface 12.

[0027] Depend on Figure 4 Figure 5 It can be seen that the inner spline sleeve 4 is a disc structure, the center of the disc is an inner spline 21, the outer edge of the disc is a shift fork groove 22, and the concentric circle of the disc is provided with evenly distributed synchronous pin holes 16, synchronous A synchronizing pin is arranged in the pin hole 16....

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Abstract

The invention relates to a non-stop variable speed gear box for a coiler with a big reel and large tension, wherein the opposite surfaces of the two gears of a speed adjusting shaft are provided with concentric ring-shaped outer friction ring grooves or friction rings; the distance from the edge openings of the ring-shaped outer friction ring grooves to the center of the shaft is larger than the distance from the bottoms of the grooves to the center of the shaft; the groove walls in the edge openings of the ring-shaped outer friction ring grooves are friction surfaces; an internal spline sleeve is a disc structure, wherein the center is provided with an internal spline, the outer margin is a fork slot, and the concentric periphery is provided with synchronization pin holes which are uniformly distributed and comprise synchronization pins; two ends of the synchronization pins are provided with friction inner rings, the ring bodies of which are located in the edge openings of the ring-shaped outer friction ring grooves, and the outer margins of the friction inner rings are inclined planes which are rough friction surfaces with the taper consistent with the groove walls; the inclined planes are rough friction surfaces; and when the internal spline is meshed with a fixed external spline on the shaft, the axial distance between the friction surfaces of the friction inner rings and the friction surfaces of the ring-shaped outer friction ring grooves is less than the distance between the external splines on the two gears and the external splines fixed on the shaft.

Description

technical field [0001] The invention relates to a speed-changing gearbox, in particular to a non-stop speed-changing gearbox used in large reels and high-tension coilers in the metallurgical industry. technical background [0002] In modern steel rolling production, the purpose of the coiler is to collect extra-long rolled pieces and wind them into coils that are convenient for transportation, production and storage. The coiler is an important equipment in the rolling workshop and is widely used in the production of strips and wires. [0003] Coiler process is divided into preparation state, normal coiling state and winding state. In each state, the required take-up speed is also different. In the ready state, the winding speed should not be too high, otherwise it is not conducive to biting the tension roller and winding the reel. During normal coiling, the tension is maintained by the initial speed difference between the reel and the rolled piece. At this time, the coile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/087F16H63/32F16H61/28B21C47/02
Inventor 曾书生雍超
Owner NANJING HIGH SPEED & ACCURATE GEAR GRP
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