CN102233356A

CN102233356A - Thin oil system for backing bearings

Info

Publication number: CN102233356A
Application number: CN2011100918700A
Authority: CN
Inventors: 唐明; 张靖; 胡智伟
Original assignee: WUXI QIAOLIAN METALLURGICAL MACHINERY CO Ltd
Current assignee: WUXI QIAOLIAN METALLURGICAL MACHINERY CO Ltd
Priority date: 2011-04-13
Filing date: 2011-04-13
Publication date: 2011-11-09

Abstract

The invention discloses a thin oil system for backing bearings. The thin oil system for the backing bearings comprises a supporting roll; a plurality of backing bearings are sleeved on the supporting roll; oil ways communicated with the inner surfaces of backing bearings are arranged in the supporting roll; each oil way is divided into an oil inlet channel and an oil outlet channel; oil inlets and oil outlets are formed in the inner surfaces of the backing bearings; the oil inlet channel are connected with the oil inlets; and the oil outlet channels are connected with the oil outlets. The thin oil system for the backing bearings has a reasonable structure and effectively solves the lubricating problem of the backing bearings.

Description

Back lining bearing thin oil system

Technical field

The present invention relates to the production facility of metallurgy industry, relate in particular to the back lining bearing structure of milling train.

Background technology

Back lining bearing is specifically developed for the multi roll cold-rolling mill, still also can be used for other purposes, for example roller-type straightening machine or bender.Back lining bearing is the thick especially roller bearing of collar wall, can be installed on the static backing roll, forms supporting or smoothing roll, is sent to roll or support from the power of work roll by backing roll and supporting saddle system.The most emulsions that adopt of existing back lining bearing are lubricated cooling, but the effect of emulsion is mainly reflected in the cooling, and the lubricated of bearing inside ball worked hardly.

Chinese patent ZL200620131932.0 and ZL200920175824.7 disclose the lubricating arrangement and the lubrication system of back lining bearing, can the ball of back lining bearing inside be lubricated.The above-mentioned two pieces of disclosed content emphasis of patent documentation differences, but substantial structure is similar, its common shortcoming is the lubrication system architecture complexity, necessarily requiring backing roll is hollow core shaft, influences intensity; Simultaneously above-mentioned two pieces of patent documentations all not have to announce when a certain bearing need lead to oil circuit more than the twice, the concrete arrangement mode of oil circuit, and in fact, the applicant learns that according to working condition tests and user feedback situation the oil circuit more than the twice is necessary.

Summary of the invention

The present invention is directed to the prior art above shortcomings and study and improve, back lining bearing thin oil system is provided, can effectively solve the lubrication problem of many group back lining bearings.

In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:

The present invention includes backing roll, be set with several back lining bearings on the backing roll, backing roll inside is provided with and states the oil circuit that the backing inner surface is communicated with, oil circuit is divided into oil inlet passage and oil discharge passage, the back lining bearing inner surface is provided with fuel feed hole and oil outlet respectively, oil inlet passage connects fuel feed hole, and oil discharge passage connects oil outlet.

Scheme is that oil circuit is as follows at the arrangement mode of backing roll inside further: on the backing roll radial section, the quantity of leading to the oil circuit of each back lining bearing is more than two groups, the oil circuit that belongs to same back lining bearing is circumferentially uniform radial section, the oil circuit of all group numbers that belongs to different back lining bearings circumferentially uniform at radial section.The backing roll surface is provided with cannelure, and the position of described cannelure is corresponding with the position of back lining bearing oil-in and oil-out.

Technique effect of the present invention is:

1. arrange the oil circuit that leads to each back lining bearing rationally, efficiently, its symmetrical structure will be reduced to minimum to the influence of backing roll intensity.

2. the design of cannelure can guarantee the unimpeded of oil circuit.

Description of drawings

Fig. 1 is a structure intention of the present invention; Fig. 2 is the longitudinal section view of backing roll of the present invention;

Fig. 3 is the enlarged drawing at A place among Fig. 1.

The specific embodiment

See Fig. 1, the present invention includes the backing roll 4 that is installed on the roller seat 3, backing roll 4 is set with six back lining bearings 2.See Fig. 1, Fig. 3, the inside of backing roll 4 is provided with the oil circuit that leads to each back lining bearing 2, back lining bearing 2 with high order end in scheming is an example, and concrete connectivity structure is as follows: described oil circuit is divided into oil inlet passage 1 and oil discharge passage 5, and oil inlet passage 1 and oil discharge passage 5 are communicated with the inner surface of back lining bearing 2 respectively; See Fig. 3, the axially parallel of the main part of oil inlet passage 1 and backing roll 4, the Connectivity Section 11 of the right-hand member setting of oil inlet passage 1 and backing roll 4 radial parallel, backing roll 4 surfaces have cannelure 41, and Connectivity Section 11 is communicated with cannelure 41; The inner ring 23 of back lining bearing 2 is provided with fuel feed hole 24, and the upper end of fuel feed hole 24 is over against the gap 22 between bearing ball 21, the bearing ball 25, and the bottom of fuel feed hole 24 is over against cannelure 41; Fuel feed hole 24 is circumferentially uniform in the cross section of bearing inner race 23, though bearing inner race 23 rotates and can make each fuel feed hole 24 of the average inflow of lubricating oil, but when Connectivity Section 11 is not communicated with fuel feed hole 24, oil circuit will block, and the effect that cannelure 41 can play the intermediate buffering band is set, when lubricating oil fed the inside of back lining bearing 2 by oil inlet passage 1, cannelure 41 will gather lubricating oil, at any time can lead to each fuel feed hole 24, guarantee the unobstructed of oil circuit.What show among Fig. 3 is the connectivity structure of oil inlet passage 1, and the connectivity structure of oil discharge passage 5 and back lining bearing 2 and above-mentioned identical.

Oil circuit of the present invention distributes as follows: see Fig. 2, the a certain longitudinal section view of having showed support roller 4 among the figure, three back lining bearings 2 of support roller 4 left parts all are communicated with the fueller (known technology of left end, do not draw among the figure), the oil circuit that leads to each back lining bearing 2 is four groups, circumferentially uniform in the cross section, promptly angle is 90 ° each other; When above-mentioned four groups of oil circuits are missed 30 ° clockwise on the cross section, be the position of oil inlet passage among the figure 1 ' and oil discharge passage 5 ', oil inlet passage 1 ' and oil discharge passage 5 ' upwards are provided with four groups in week equally, and lead to same back lining bearing 2; Same, when four groups of oil inlet passages 1 ' and oil discharge passage 5 ' miss 30 ° more clockwise, be four groups of oil circuits that lead to another back lining bearing 2; Above-mentioned angle is arranged and is made all oil circuits still be circumferentially uniform on the cross section.An above-mentioned embodiment for oil circuit layout of the present invention when the quantity of oil circuit group number that leads to each back lining bearing 2 or back lining bearing 2 changes, can reach the purpose that makes oil circuit uniform by the angle value that change is missed.

Claims

1. back lining bearing thin oil system, comprise backing roll, be set with several back lining bearings on the described backing roll, it is characterized in that the inner oil circuit that is communicated with described backing inner surface that is provided with of described backing roll, described oil circuit is divided into oil inlet passage and oil discharge passage, described back lining bearing inner surface is provided with fuel feed hole and oil outlet respectively, and described oil inlet passage connects fuel feed hole, and described oil discharge passage connects oil outlet.

2. back lining bearing thin oil according to claim 1 system, it is characterized in that described oil circuit is as follows at the arrangement mode of backing roll inside: on described backing roll radial section, the quantity of leading to the oil circuit of each described back lining bearing is more than two groups, the oil circuit that belongs to same back lining bearing is circumferentially uniform described radial section, the oil circuit of all group numbers that belongs to different back lining bearings circumferentially uniform at described radial section.

3. back lining bearing thin oil according to claim 1 and 2 system is characterized in that described backing roll surface is provided with cannelure, and the position of described cannelure is corresponding with the position of back lining bearing oil-in and oil-out.