CN2216434Y

CN2216434Y - Axle supporting device for ball mill

Info

Publication number: CN2216434Y
Application number: CN95213730U
Authority: CN
Inventors: 孙永祥; 李永水
Original assignee: KUNLUN MACHINERY FACTORY ZICHUAN DISTRICT ZIBO CITY
Current assignee: KUNLUN MACHINERY FACTORY ZICHUAN DISTRICT ZIBO CITY
Priority date: 1995-07-03
Filing date: 1995-07-03
Publication date: 1996-01-03
Anticipated expiration: 2005-07-03

Abstract

The utility model relates to a shaft supporting device for ball mills, comprising a bearing seat, a bearing cap, and a ball surface body. The utility model is characterized in that the shaft supporting device for ball mill also comprises a group of rollers which is composed of a roll shaft, a supporting roller, a pin roller and a thrust bearing. A concave groove is arranged on the ball surface body, and the walls at both sides of the concave groove are provided with two groups of symmetrical concave holes; both ends of the supporting roller are provided with concave rims which are sheathed on the roll shaft; the pin roller is inserted in each of the concave rim, and the thrust bearing is supported at both ends of the supporting roller; both ends of the roll shaft are put in the concave holes, and the roll shaft is fixed on the ball surface body through a fixing plate with screws. The utility model has the advantages of power consumption saving, and long service life and can be widely used for the axle suspension in various cement ball mills.

Description

A kind of ball mill bearing device

The utility model relates to a kind of bearing device.

The supporting arrangement of existing cement ball mill is that quill shaft is bearing on the bearing shell of an integral body, and bearing shell is fixed on the spherical surface body, because force of sliding friction is big, power consumption is big, and radiating condition is poor, is very easy to produce the tile kilning phenomenon.And adopt the monoblock type rolling bearing, and though rolling frictional resistance is less, price is very expensive, and a large-scale like this bearing will be about 60,000 yuan, and a ball mill need use two.

At the problems referred to above, it is little that the purpose of this utility model provides a kind of frictional resistance, low price, the ball mill supporting arrangement of perfect heat-dissipating.

For achieving the above object, the utility model is taked following design: a kind of ball milling arbor bracing or strutting arrangement, it comprises bearing block, bearing cap, spherical surface body, it is characterized in that: it also comprises one group by roll shaft, carrying roller, the roller that roller and thrust bearing are formed, have Baltimore groove on the described spherical surface body, on the two side of described Baltimore groove, have the two group shrinkage pools corresponding with described roller quantity, described carrying roller two ends have recessed edge, described support roller sleeve is on described roll shaft, described roller is inserted in the described recessed edge, described thrust bearing withstands on the two ends of described carrying roller, the a pair of described shrinkage pool of described spherical surface body is put at the two ends of described roll shaft, passed fixed head with screw described roll shaft is fixed on the described spherical surface body.

The utility model is owing to adopt above design, it has the following advantages: 1, because the utility model has removed the bearing shell of sliding bearing in original design, changed the roller of rolling bearing, the frictional resistance of whole device is greatly reduced, transmission efficiency improves, thereby the required electrical power of ball mill obviously reduces, and is 245KW such as the former design power of motor of Φ 1830 * 7000 ball mills, now is 210KW; The former design power of motor of Φ 2200 * 6500 ball mills is 380KW, now is 320KW, and amount of electricity saving is given and used producer to bring considerable economic more than 30%.2, roller design of the present utility model is adopted and at roll shaft roller is set circumferentially, and the mode of thrust bearing is not put in the end, and is both simple, and transmission efficiency is high again, and installation and maintenance are all very convenient.The utility model energy efficient, low price, few easy workout part, long service life, it can be widely used in the axle supporting of various cement ball mills.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

Fig. 1 is original technical pattern schematic diagram

Fig. 2 is the utility model structural representation

Fig. 3 is the spherical structural representation

Fig. 4 is the cross-sectional schematic of Fig. 3

Fig. 5 is the roller structure schematic diagram

Fig. 6 is the roller scheme of installation

As shown in Figure 1, original technology comprises bearing block 1, and openable bearing cap 2 is sitting in the spherical surface body 3 in the bearing block 1, is fixed on the bearing shell 4 on the spherical surface body 3, is arranged on the cooling water chamber 5 in the spherical surface body 3, and quill shaft 6 is sitting on the bearing shell 4.

As shown in Figure 2, the utility model removes bearing shell 4, have Baltimore groove 7 (as shown in Figure 3, Figure 4) on the spherical surface body 3 in bearing block 1, on the two side of Baltimore groove 7, have the semicircle shrinkage pool 8 of two groups of symmetries, between each is to shrinkage pool 8, place a roller 9 (as shown in Figure 1).As shown in Figure 5, each roller 9 comprises a roll shaft 10, carrying roller 11, two groups of rollers 12 and two thrust bearings 13.Roll shaft 10 two ends have screw hole 14, and carrying roller 11 two ends have recessed edge 15, and carrying roller 11 is enclosed within on the roll shaft 10, roller 12 are inserted the recessed edge 15 interior (as shown in Figure 6) at carrying roller 11 two ends.As shown in Figure 5, thrust bearing 13 is enclosed within on the roll shaft 10, withstand the two ends of carrying roller 11, then with roll shaft 10 two ends framves on the shrinkage pool 8 of two symmetries, put a fixed head 16 respectively in the outer end of two shrinkage pools 8, have centre bore on the fixed head 16, screw 17 is passed centre bore on the fixed head 16 respectively, be tightened in the screw hole 14 at roll shaft 10 two ends.

The time marquis who uses can overlap a wear-resistant sleeve 18 on quill shaft 6, to strengthen the wearability of itself and roller 9.Marquis when quill shaft 6 rotates, roll shaft 10 maintains static, and carrying roller 11 rotates with quill shaft 6 under the supporting of roller 12.

In the foregoing description, the quantity of each group shrinkage pool 8 is 6-8, and the quantity of roller 12 can be rotated flexibly in carrying roller 11 with roll shaft 10 and is as the criterion.

Claims

1, a kind of ball milling arbor bracing or strutting arrangement, it comprises bearing block, bearing cap, spherical surface body, it is characterized in that: it also comprises one group by roll shaft, carrying roller, the roller that roller and thrust bearing are formed, have Baltimore groove on the described spherical surface body, on the two side of described Baltimore groove, have the two group shrinkage pools corresponding with described roller quantity, described carrying roller two ends have recessed edge, described support roller sleeve is on described roll shaft, described roller is inserted in the described recessed edge, described thrust bearing withstands on the two ends of described carrying roller, and a pair of described shrinkage pool of described spherical surface body is put at the two ends of described roll shaft, passes fixed head with screw described roll shaft is fixed on the described spherical surface body.