CN204477077U - With the rolling bearing retainer of radiating fin - Google Patents

Abstract

With a rolling bearing retainer for radiating fin, be made up of the overall support body with through hole, on the inside and outside surface of described support body, be tiltedly installed with the inside and outside fin that sense of rotation is contrary.Uniform because adding on retainer, protruding, favour in retainer support body axis, outer fin, add contact and the heat exchange area of retainer and air, namely in, outer fin plays the effect of similar fan blade, with retainer high speed rotating, do not need other power or energy just can stir, instigate air, strengthen and promote the convection current of air, heat transfer heat radiation is carried out in circulation, thus the heat produced when rolling bearing can be operated is taken away in time and effectively distributes, the operating temperature of rolling bearing can be reduced, and improve running speed and the working efficiency of rolling bearing, reduce and the stuck fault of the various heating of bearing occurs, substantially prolongs the working life of bearing.

Description

Rolling bearing cage with cooling fins

technical field

The utility model relates to a cage for rolling bearings, in particular to a cage for rolling bearings with cooling fins, which has heat dissipation function and good cooling effect.

Background technique

Due to the narrow installation position of the rolling bearing cage, the heat generated by the long-term operation of the bearing is difficult to dissipate into the air. If the heat cannot be dissipated in a timely and effective manner, the bearing will burn out and be stuck due to the high working temperature of the bearing. , greatly reducing the service life of the bearing.

Patent No. CN200920232578.4 "Disc Bearing Cage" provides a bearing cage with a new structure, using the first and second oil holes on the lintel of the cage and the outer ring of the lintel for Improve the lubrication and heat dissipation performance of the raceway.

Patent No. CN200820088904.4 "External Pull Type Cylindrical Roller Bearing Cage", CN200820088905.9 "Inner Pull Type Cylindrical Roller Bearing Cage", both edges of the cage are provided with symmetrically inclined slopes, although they are all integral structures , but its cage is bulky and heavy, and is mainly used on air-conditioning compressors.

Contents of the invention

The technical problem to be solved by the utility model is to provide a rolling bearing cage with cooling fins, which can not only effectively reduce the operating temperature of the rolling bearing, have a good cooling effect, but also improve the running speed and working efficiency of the bearing, and reduce various A heating fault prolongs the service life.

The technical scheme adopted by the utility model to solve the above-mentioned problems is: the rolling bearing cage with cooling fins is composed of an integral frame body with through holes, and the inner and outer surfaces of the frame body are obliquely installed. inner and outer fins.

The edges of each through hole on the inner and outer surfaces of the frame are respectively inclined, evenly distributed, and raised to fix the inner fins and outer fins, and the included angle between the inner and outer fins and the axis of the frame body is 15-75° Spend;

The heights h1 and h2 of the inner and outer fins are smaller than the gaps δ1 and δ2 between the frame body and the inner and outer rings of the bearing;

The inner and outer fins are evenly distributed and obliquely fixed between the two through holes of the frame body, the lengths of the inner and outer fins are L1≤d1, L2≤d2, and the distances between the two through holes are d1 and d2;

The numbers of the inner and outer fins are the same or different, and the widths B1 and B2 of the inner and outer fins are the same or different;

The inner and outer surfaces of the inner and outer fins are smooth arcuate surfaces.

Compared with the prior art, the utility model has the advantages that: on the inner and outer surfaces of the cage body of the overall structure, there are inner and outer fins that are evenly distributed, raised, and inclined to the axis of the cage body , increasing the contact and heat exchange area between the cage and the air, that is, the inner and outer fins play the role of fan blades, and rotate with the cage at high speed, without additional power or energy to stir and stir the air, strengthening And promote the convection and circulation of air for heat transfer and heat dissipation, take away the heat generated during the operation of the rolling bearing in time and effectively dissipate it, which can reduce the working temperature of the rolling bearing and enhance the cooling effect, thereby improving the running speed and working efficiency of the rolling bearing and reducing the occurrence of bearing damage. All kinds of heating and stuck faults greatly prolong the service life of the bearing.

Description of drawings

Fig. 1, the structural representation (stereoscopic view) of the utility model.

Figure 2, the top view of Figure 1.

Figure 3. Schematic diagram of the structure of the inner fin.

Detailed ways

Embodiments of the utility model will be further described below in conjunction with the accompanying drawings.

The rolling elements in the rolling bearing can be steel balls or cylindrical rollers, and the through holes 2 on the cage body are used to place the rolling elements.

On the sides of each through hole 2 on the inner and outer surfaces of the frame body 1, the inner fins 3 and the outer fins 4 are respectively inclined, uniformly distributed, and raised to fix the inner fins 3 and outer fins 4 according to the needs of the supporting bearings, and the inclined rotation direction of the inner and outer fins On the contrary, when the bearing rotates at high speed, the axial force generated by the inner and outer fins on the cage basically cancels out, so the existence of the inner and outer fins has no effect on the bearing operation.

The heights h1 and h2 of the inner fin 3 and outer fin 4 are smaller than the gaps δ1 and δ2 between the frame body 1 and the inner ring of the bearing, and the outer ring of the bearing, so that they do not touch the inner and outer rings of the bearing and affect the rotation. The angle between the inner and outer fins and the axis of the cage body, that is, the inclination, is 15 to 75 degrees.

The longer the lengths L1 and L2 of the inner and outer fins 3 and 4, the better, but they should be less than or equal to the distances d1 and d2 between the two through holes 2, L1≤d1, L2≤d2.

The lengths L1, L2 of the inner and outer fins 3, 4 are the same or different.

The widths B1, B2 of the inner and outer fins 3, 4 are the same or different.

The inner and outer surfaces of the inner and outer fins 3 and 4 are smooth arcuate surfaces.

The numbers of inner and outer fins 3, 4 are the same or different.

The frame body 1 of this cage can be made of various materials such as low carbon steel, stainless steel, bakelite, plastics, bronze, brass, aluminum alloy.

When in use, the prepared frame body 1 is installed in the inner and outer rings of the bearing (not shown in the figure), and the tops of the inner and outer fins 3 and 4 do not touch the inner and outer rings of the bearing. Driven by the torque, the heat generated in the bearing work is dissipated, and the air is continuously stirred through the inner and outer fins to enhance the convection flow of the air and enhance the heat dissipation and cooling effect. The rotation of the inner and outer fins does not require additional power and energy. It is safe and reliable to use.

It is not only suitable for rolling bearings with open type, no sealing ring and dust cover, but also suitable for semi-sealed rolling bearings with incomplete sealing.

Claims (6)

1. A rolling bearing cage with cooling fins, consisting of an integral frame (1) with through holes (2), characterized in that the inner and outer surfaces of the frame (1) are obliquely installed with Inner fins (3) and outer fins (4) with opposite directions of rotation. 2. The rolling bearing cage with heat dissipation fins according to claim 1, characterized in that the sides of each through hole (2) on the inner and outer surfaces of the frame body (1) are respectively inclined, uniformly distributed, and raised Fix the inner fins (3), outer fins (4), and the angle between the inner and outer fins (3, 4) and the axis of the frame body (1), that is, the inclination, is 15 to 75 degrees. 3. The rolling bearing cage with cooling fins according to claim 1, characterized in that the length L1 of the inner fin (3) and the length L2 of the outer fin (4), L1, L2 are the same or different, L1≤d1, L2≤d2, where d1 and d2 are the distances between the two through holes (2). 4. The rolling bearing cage with cooling fins according to claim 1, characterized in that the numbers of the inner and outer fins (3, 4) are the same or different, and the inner and outer surfaces are smooth arcuate surfaces. 5. The rolling bearing cage with cooling fins according to claim 1, characterized in that the heights h1 and h2 of the inner and outer fins (3, 4) are smaller than those of the frame body (1) and the inner and outer sides of the bearing. The gap between circles δ1, δ2. 6. The rolling bearing cage with cooling fins according to claim 1, characterized in that the widths B1 and B2 of the inner and outer fins (3, 4) are the same or different.