CN201884484U

CN201884484U - Special combined bearing for energy saving transformation of ball mills with sliding bearings

Info

Publication number: CN201884484U
Application number: CN201020630598XU
Authority: CN
Inventors: 李万芝; 孙凤文; 王峰; 姜国胜; 张军
Original assignee: WAFANGDIAN DAZHONG BEARING FACTORY
Current assignee: WAFANGDIAN DAZHONG BEARING FACTORY
Priority date: 2010-11-29
Filing date: 2010-11-29
Publication date: 2011-06-29
Anticipated expiration: 2020-11-29

Abstract

The utility model provides a special combined bearing for energy saving transformation of ball mills with sliding bearings, which solves the technical problem of mounting a rolling bearing on a traditional ball mill with a sliding bearing. The technical scheme particularly includes that a split conical sleeve is fixed onto the circumference of a hollow shaft and used for enlarging the diameter of the hollow shaft, so that the diameter of the portion, with the split conical sleeve, of the hollow shaft is slightly larger than the diameters at shaft ends at two ends of the hollow shaft, and a rolling bearing with a taper hole is further mounted outside the split conical sleeve and can be axially positioned on the conical sleeve to be used as a positioning bearing, or the rolling bearing needs not to be axially positioned on the conical sleeve to be used as a traveling bearing. The special combined bearing has the advantages that 1 the combined bearing is specially suitable for energy saving transformation of the ball mills with sliding bearings, and creates conditions for transformation of mass ball mills with sliding bearings into bearing grinders, 2 after the ball mills with sliding bearings are transformed into the bearing grinders, each bearing grinder can save energy by 15%-20%, and 3 during transformation, hollow shafts of the ball mills with sliding bearings do not need to be replaced or reprocessed, thereby bringing convenience for users, saving transformation cost, reducing machine downtime and increasing yield of the ball mills with sliding bearings.

Description

Watt mill reducing energy consumption dedicated set box-like bearing

Technical field

The utility model belongs to the rolling bearing category, especially belongs to a kind of watt of box-like bearing of mill reducing energy consumption dedicated set, and (pebble mill of employing sliding bearing is called for short " watt mill ", and is as follows by " watt mill ".) be transformed into special-purpose rolling bearing pebble mill.

Background technique

Pebble mill is metallurgical, mine, one of main production equipments of industries such as cement, and bearing is the critical component of pebble mill, its usability, reliability and cost etc. directly influence the development and application of pebble mill.Pebble mill has two kinds with bearing, and the one, sliding bearing, both bearing shell (see figure 1)s, the 2nd, rolling bearing.The sliding bearing starting torque is big, friction factor is high, maintenance rate is high, dead time is long, not only wastes energy but also influence manufacturing efficiency; And rolling bearing has very big superiority, because coefficient of rolling friction is little, facts have proved the 15%-20% that can economize on electricity; Because rolling bearing need not keep in repair, do not shut down, not only reduce production costs but also improved manufacturing efficiency; Because rolling bearing operational reliability height, can reach 3-5 working life, satisfied user's request greatly.For the new system pebble mill, the pebble mill hollow shaft can directly assemble rolling bearing, and (pebble mill of employing rolling bearing is called for short " bearing mill ", and is as follows.), and for thousands of old-fashioned watt mill of on-line operation, if wanting to install rolling bearing just exists sizable difficulty, that is to say that universal standard bearing is not suitable for old-fashioned watt of mill and transforms, must redesign specific bearing and just can be assembled on watt mill hollow shaft.

Summary of the invention

For solving old-fashioned watt of mill the technical task of rolling bearing is installed, the utility model provides a kind of watt of box-like bearing of mill reducing energy consumption dedicated set, is to develop the non-standard combination bearing of a kind of novel structure at watt mill hollow shaft structure characteristics.

Concrete technological scheme is that the subdivision taper sheath is fixed on the axle journal of hollow shaft, and the axle journal overstriking is installed rolling bearing to thicker slightly than two axle head outside the subdivision taper sheath;

Described subdivision taper sheath is fixed on the axle journal of hollow shaft with screw and taper pin;

Described rolling bearing is a tapered bore bearing;

Described rolling bearing is the outer spherical surface Biserial cylindrical roller bearing, and retainer is the entity frame;

Described taper sheath tapering is 1: 30;

Described taper sheath tapering is 1: 12;

Described rolling bearing axially locating on taper sheath;

Described rolling bearing is axial non-location on taper sheath.

The utlity model has following advantage:

1. combination bearing is applicable to a watt mill reducing energy consumption special use, has created condition in enormous quantities watt of mill changes the bearing mill.

2. after a watt mill changes the bearing mill, but every energy saving 15%-20%.

3. because in the restructuring process, a watt mill hollow shaft need not change also and need not process again, has made things convenient for the user, has saved reforming cost, having reduced dead time has increased ball mill output.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Fig. 1 is watt a mill hollow shaft and a bearing shell structural representation;

Fig. 2 is that hollow shaft adds subdivision tapered sleeve and tapered bore bearing structural representation;

Fig. 3 is the integrated positioning bearing;

Fig. 4 makes up the bearing that moves about.

Illustration: axle head 1, axle journal 2, hollow shaft 3, bearing shell 4, rolling bearing 5, taper sheath 6, taper pin and screw 7, positioning bearing 8, positioning block 9, bearing 10 moves about.

Embodiment

See Fig. 1, two axle head 1 of watt mill hollow shaft 3 is thick, and axle journal 2 is thinner relatively, and bearing shell 4 is installed in axle journal 2 places, and rolling bearing 5 is installed, must be with axle journal 2 overstrikings to thicker slightly than two axle head 1.

As shown in Figure 2, adopt subdivision taper sheath 6, taper sheath 6 taperings are that K gets 1: 30 (bearing width series is 4 series), and tapering K gets 1: 12 (other series except that 4 series); With screw and taper pin 7 the subdivision taper sheath is fixed on the axle journal 2, the axle journal 2 that has been equivalent to overstriking, and make the thickness of taper sheath 6 should be less than the other end at this end that rolling bearing 5 is installed; The endoporus of rolling bearing 5 is processed into cone shape hole, and size and taper sheath 6 are drive fit, and bearing with tapper bore 5 is installed on the taper sheath 6, and rolling bearing 5 is outer spherical surface Biserial cylindrical roller bearings, and retainer is the entity frame.

As shown in Figure 3, ZHR000/000A type integrated positioning bearing is that rolling bearing 5 is installed on the taper sheath 6, and with positioning block 9 at axial restraint rolling bearing 5.

As shown in Figure 4, the ZHR000/000B type makes up the bearing that moves about, and is that rolling bearing 5 is installed on the tapered sleeve, and the edge does not have rib.

The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and model utility design thereof; every pressing on watt mill hollow shaft adorned tapered sleeve, and bearing is installed in the tapered sleeve outside, all should be encompassed within the protection domain of the present utility model.

Claims

1. one kind watt is ground the box-like bearing of reducing energy consumption dedicated set, it is characterized in that: the subdivision taper sheath is fixed on the axle journal of hollow shaft, the axle journal overstriking is installed rolling bearing to thicker slightly than two axle head outside the subdivision taper sheath.

2. according to the box-like bearing of claim 1 described watt of mill reducing energy consumption dedicated set, it is characterized in that: described subdivision taper sheath is fixed on the axle journal of hollow shaft with screw and taper pin.

3. according to the box-like bearing of claim 1 described watt of mill reducing energy consumption dedicated set, it is characterized in that: described rolling bearing is a tapered bore bearing.

4. according to claim 1 or 2 described watts of box-like bearings of mill reducing energy consumption dedicated set, it is characterized in that: described taper sheath tapering is 1: 12.

5. according to claim 1 or 2 described watts of box-like bearings of mill reducing energy consumption dedicated set, it is characterized in that: described taper sheath tapering is 1: 30.

6. according to claim 1 or 3 described watts of box-like bearings of mill reducing energy consumption dedicated set, it is characterized in that: described rolling bearing axially locating on taper sheath.

7. according to claim 1 or 3 described watts of box-like bearings of mill reducing energy consumption dedicated set, it is characterized in that: described rolling bearing is axial non-location on taper sheath.

8. according to claim 1 or 3 described watts of box-like bearings of mill reducing energy consumption dedicated set, it is characterized in that: described rolling bearing is the outer spherical surface Biserial cylindrical roller bearing, and retainer is the entity frame.