CN211713282U

CN211713282U - Novel upper roller bearing shell

Info

Publication number: CN211713282U
Application number: CN202020142364.4U
Authority: CN
Inventors: 陈以刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-10-20
Anticipated expiration: 2030-01-22

Abstract

The utility model relates to a novel top roller bearing shell, which comprises a shell body. The annular groove arranged on the shell body is formed by combining a group of zigzag annular grooves and a group of rectangular annular grooves. The utility model discloses adopt two kinds of flute profile combinations on the bearing housing surface, and through the total groove number of zigzag annular groove number more than or equal to half, the total groove number of rectangle annular groove number less than or equal to half and set up the integrated configuration in two grooves at least, make bearing housing when cover system aluminium lining or butyronitrile rubber roll, at first through the smooth and easy cover system stage of zigzag annular groove, the axiality cover system gesture of rubber roll obtains effective assurance in this stage, thereby for the rubber roll gets into the cover system stage in rectangle annular groove and lays good basis, not only can effectively avoid the rectangle ring channel to lead to the butyronitrile rubber roll to bulge because of the cover system resistance is big, lead to the phenomenon that aluminium lining rubber roll inner wall gnaws and draw because of the cover system gesture is not just, and under the effect on rectangle annular groove limit, can effectively solve "run limit" problem.

Description

Novel upper roller bearing shell

Technical Field

The utility model relates to an go up the roller bearing shell, especially relate to an go up annular groove structure on the roller bearing shell, belong to textile machinery accessory manufacturing and designing technical field.

Background

The upper roller bearing used in the drafting mechanism of ring-opening spinning frame is an important special clamping drafting part matched with a butadiene-acrylonitrile rubber roller, and has great influence on the evenness of yarn evenness, the breakage rate of yarn and the service life of the matched butadiene-acrylonitrile rubber roller. The influence mechanism is directly influenced by the deviation of the bearing in the processing precision and the assembling process, and the matching condition between the upper roller bearing shell and the butadiene-acrylonitrile rubber roller is also important. Such as: the ring-shaped groove (also called comb groove) on the surface of the bearing shell for fixing the butadiene-acrylonitrile rubber roller is one of important factors. The annular groove on the surface of the shell of the roller bearing is a rectangular annular groove, when a nitrile rubber roller is sleeved in the groove, due to too large sleeve obstacle, the rubber roller is bulged, the bulged part of the bulged part is removed through shaping pressing and grinding, but the sleeve stress in the rubber roller is still existed, the bulged part is released under the action of clamping force in the operation to enable the surface of the rubber roller to be deformed into an inwards concave part, the clamping force of a drafting mechanism is directly influenced, and yarn slips on the clamping surface to cause uneven yarn evenness. In order to better improve the yarn quality, people put forward an aluminum rubber-lined roller which can effectively avoid the phenomenon of bulging. However, in the process of sleeving the aluminum lining rubber roller with the upper roller rail bearing shell, the groove shoulder of the annular groove gnaws and scratches the inner wall of the aluminum lining, so that the cohesion stability between the rubber roller and the bearing shell is poor. Thus, in chinese patent nos.: 200520077632.4, it provides a top roller bearing shell of spinning machine, which releases a top roller bearing shell with zigzag annular groove by changing the shape of the annular groove on the surface of the top roller bearing shell, and the sleeve system is smooth, not only solving the problem that the traditional annular groove tip gnaws the inner wall of the aluminum lining, but also making the sleeve system nitrile rubber roller not bulge. However, one problem is solved and a new problem arises, namely: the phenomenon of slight running of the rubber roller to the smooth sleeving direction can occur in use. Therefore, the ring-shaped groove of the existing upper roller bearing shell needs to be further improved.

Disclosure of Invention

In order to overcome the present technique that roller bearing shell surface sawtooth annular groove can lead to rubber roll "run limit" not enough, the utility model provides a novel roller bearing shell goes up, it adopts the structure of sawtooth annular groove and rectangle annular groove combination on the shell surface, realizes that the no bulging of butyl fine rubber roller cover system, the no limit of running, and aluminium lining rubber roll cover system does not gnaw the purpose of drawing the inner wall.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a novel top roller bearing shell, includes the shell body, shell body surface be equipped with the annular groove, annular groove width equal, the interval between two adjacent grooves equals, the groove width with the interval equal its characterized in that:

the annular groove is formed by combining a group of zigzag annular grooves and a group of rectangular annular grooves, and the group of zigzag annular grooves are arranged at the positions which the rubber roller firstly passes through when being sleeved.

In some embodiments, the number of the set of zigzag-shaped annular grooves is equal to the number of the set of rectangular annular grooves, the total number of the two sets of annular grooves is twelve grooves, and the two sets of annular grooves are separated by an axial distance greater than one of the intervals;

in some embodiments, the number of the zigzag annular grooves is equal to or greater than seven, the number of the rectangular annular grooves is equal to or greater than two, the total number of the annular grooves is thirteen, and the two annular grooves are separated by an axial distance equal to the distance.

The utility model discloses adopt two kinds of flute profile combinations on last roller bearing shell surface, and through the total groove number of zigzag annular groove number more than or equal to half, the total groove number of rectangle annular groove number less than or equal to half and set up the integrated configuration in two grooves at least, make bearing housing when cover system aluminium lining or butyronitrile rubber roll, at first through the smooth and easy cover system stage of zigzag annular groove, the axiality cover system gesture of rubber roll obtains effective assurance in this stage, thereby for the rubber roll gets into the cover system stage in rectangle annular groove and beats down good basis, not only can effectively avoid the rectangle ring channel to lead to the butyronitrile rubber roll to bulge because of the cover system resistance is big, lead to aluminium lining rubber roll inner wall to gnaw the right angle phenomenon of drawing because of the cover system gesture is not just, and under the effect on rectangle annular groove limit, can effectively solve "run limit" problem.

The utility model has the advantages of reasonable design, simple structure, stable cohesion of the rubber roller, long service life and the like.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sixth embodiment of the present invention.

In the accompanying fig. 1-6: 1 is a shell body, 101 is a sawtooth annular groove, and 102 is a rectangular annular groove.

Detailed Description

The invention will be further explained below with reference to the drawings and six exemplary embodiments:

example one

As shown in figure 1: six zigzag annular grooves 101 and six rectangular annular grooves 102 are provided, and an axial distance greater than one space is provided between the zigzag annular grooves 101 and the rectangular annular grooves 102.

Example two

As shown in fig. 2: the group of zigzag annular grooves 101 is seven, the group of rectangular annular grooves 102 is six, and the seven zigzag annular grooves 101 and the six rectangular annular grooves 102 are arranged at equal intervals.

EXAMPLE III

As shown in fig. 3: eight zigzag annular grooves 101 and five rectangular annular grooves 102 are arranged at equal intervals.

Example four

As shown in fig. 4: nine zigzag annular grooves 101 and four rectangular annular grooves 102 are arranged at equal intervals.

EXAMPLE five

As shown in fig. 5: the group of zigzag annular grooves 101 is ten, the group of rectangular annular grooves 102 is three, and the ten zigzag annular grooves 101 and the three rectangular annular grooves 102 are arranged at equal intervals.

EXAMPLE six

As shown in fig. 6: eleven zigzag annular grooves 101 are formed in one group, two rectangular annular grooves 102 are formed in one group, and the eleven zigzag annular grooves 101 and the two rectangular annular grooves 102 are arranged at equal intervals.

The utility model discloses when the cover system rubber roll, the hole of embracing in the rubber roll is under the press effect, at first through zigzag annular groove 101, at this cover system in-process, though realize the cover system with interference fit's form between rubber roll and the bearing housing, nevertheless because zigzag annular groove 101 has the smooth and easy characteristic of cover system, therefore the rubber roll embolias the bearing housing relatively easily, enable the axiality position relation between the two to obtain well-founding very much, therefore when can emboliaing rectangle annular groove 102 for the follow-up, create the cover system and do not play the drum, do not run the limit, the advantage of drawing the inner wall is not gnawed in aluminium lining rubber roll cover system.

Claims

1. The utility model provides a novel top roller bearing shell, includes the shell body, shell body surface be equipped with the annular groove, annular groove width equal, the interval between two adjacent grooves equals, the groove width with the interval equal its characterized in that:

the annular groove is formed by combining a group of zigzag annular grooves and a group of rectangular annular grooves.

2. The new top roller bearing housing of claim 1, wherein: the number of the group of zigzag annular grooves is equal to that of the group of rectangular annular grooves, the total number of the two groups of annular grooves is twelve, and the two groups of annular grooves are separated by an axial distance larger than one interval.

3. The new top roller bearing housing of claim 1, wherein: the number of the zigzag annular grooves is more than or equal to seven, the number of the rectangular annular grooves is more than or equal to two, the total number of the two groups of annular grooves is thirteen, and the two groups of annular grooves are separated by one axial distance of the interval.

4. A new top roller bearing housing according to any one of claims 1, 2, 3, characterized in that: the group of zigzag annular grooves is arranged at the position which is firstly passed by the rubber roller during the sleeving process.