CN211474666U

CN211474666U - Double-row angular contact bearing for engraving and milling ultrathin plate glass

Info

Publication number: CN211474666U
Application number: CN201920152834.2U
Authority: CN
Inventors: 吴勇平; 阳廷伍
Original assignee: Hangzhou Yijia Precision Bearing Co ltd
Current assignee: Hangzhou Yijia Precision Bearing Co ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2020-09-11
Anticipated expiration: 2029-01-29

Abstract

The utility model provides a double row angular contact bearing for engraving and milling of ultra-thin plate glass, including ball holder, bearing inner race, bearing ball and bearing inner race, the utility model discloses the setting of bearing ball, compare bearing ball 4 more with like bearing, can bear great radial pressure, make single bearing ball atress even, the damage of bearing is caused when the effectual strong moment of overturning that prevents bears; the ball retainer, the bearing outer ring, the bearing balls and the bearing inner ring are arranged, so that the abrasion degree of the bearing can be reduced through precise matching, the service life of the bearing is prolonged, and the probability of dust entering is reduced; the arrangement of the bearing balls on the bearing outer ring and the bearing inner ring has reasonable stress included angle, can bear the maximum radial and axial comprehensive pressure, and improves the comprehensive stress ratio of the bearing; the ball retainer's setting has increased ball retainer's bulk strength and pressurized ability, prevents to cause the not operation phenomenon of bearing because of ball retainer's damage.

Description

Double-row angular contact bearing for engraving and milling ultrathin plate glass

Technical Field

The utility model belongs to the technical field of the double row angular contact bearing, especially, relate to ultra-thin plate glass carving mills and uses double row angular contact bearing.

Background

The bearing is widely applied to a rotating mechanism and has the functions of transmission, support, friction reduction, load bearing and the like, the bearing is various, wherein the angular contact ball bearing can bear radial load and axial load at the same time, the double-row angular contact ball bearing has better rigidity and can bear the radial load and the axial load acting in two directions, the double-row angular contact ball bearing can limit the two-way axial displacement of a shaft or a shell and can bear overturning moment, and the bearing is particularly suitable for application occasions with high rigidity requirements.

The invention discloses a double-row angular contact ball bearing with the Chinese patent publication number of CN 207178473U, and the invention provides a double-row angular contact ball bearing, which comprises an inner ring, an outer ring, steel balls, a retainer, an inner sealing ring and a sealing mechanism, wherein the inner ring is of a split structure consisting of two inner ring rings with completely identical shapes, two edges of the joint of the two inner ring rings are chamfered, a trapezoidal groove is formed in the middle of the outer wall of the inner ring, the inner sealing ring is arranged in the trapezoidal groove, a double-row rolling groove matched with the steel balls is formed by grooves in the outer wall of the inner ring and the inner wall of the outer ring, the steel balls are sleeved on the retainer, the retainer uniformly distributes the steel balls in the double-row rolling groove, the sealing mechanism is positioned at an upper opening between the inner ring and the outer ring, and. The utility model discloses inside sealing washer and the outside sealing mechanism of bearing can be fine prevent that outside foreign matter from getting into inside the bearing, prevent simultaneously that the inside lubricating grease of bearing from leaking, improved the transmission precision and the life of bearing. However, the existing double-row angular contact ball bearing also has the problems that the retainer has poor wear-resisting and heat-conducting performance, the matching precision is low, the bearing is easy to operate abnormally due to damage, the number of the balls of the bearing is small, the single bearing is large when the bearing is used, the bearing is easy to damage, and the bearing bears small overturning moment when the bearing is applied to occasions with high rigidity requirements.

Therefore, the invention of the double-row angular contact bearing for engraving and milling the ultrathin plate glass is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an ultra-thin plate glass carving mills uses double-row angular contact bearing to it is poor still to have the wear-resisting heat conductivility of holder to solve current double-row angular contact ball bearing, and the cooperation precision is low, leads to the bearing operation abnormal because of damaging easily, and the bearing ball grain number is few, and single atress is big when using, causes the bearing to damage easily, and bears the little problem of overturning moment when using the occasion that has the high rigidity requirement. The double-row angular contact bearing for engraving and milling the ultrathin plate glass comprises 2 ball retainers, a bearing outer ring, bearing balls and a bearing inner ring, wherein the number of the ball retainers is set to be wave-shaped, the ball retainers are embedded between the bearing outer ring and the bearing inner ring, and the single weight of the ball retainers is 8.3 g; the bearing outer ring is sleeved outside the bearing inner ring; and the bearing balls are embedded in the ball retainer and are in rolling connection with the bearing outer ring and the bearing inner ring.

The bearing outer ring and the bearing inner ring are made of G9Cr18, the weights of the bearing outer ring and the bearing inner ring are 139.5G and 77.5G respectively, the bearing inner ring has strong overturning moment bearing capacity, and the bearing inner ring is suitable for working occasions with requirements on rigidity.

The bearing outer ring comprises an outer ring body and 2 inner slideways, and the inner slideways are arranged on the inner side of the outer ring body.

The bearing inner ring comprises a chamfer, an outer slideway and an inner ring body, wherein the chamfer is arranged at 2 positions and is respectively arranged at two sides of the inner ring body; the outer slide sets up to 2 departments, all sets up in the outside of inner circle body.

The diameter of the bearing ball is phi 8.731mm, 2 rows are arranged and are all embedded on the ball retainer, the number of each row is 14, compared with the similar bearing, the bearing ball has 4 more balls and can bear larger radial pressure, so that the single bearing ball is uniformly stressed, and the bearing is effectively prevented from being damaged when a stronger overturning moment is borne.

The minimum radial clearance of the ball retainer, the bearing outer ring, the bearing balls and the bearing inner ring is 0.124mm, and the maximum radial clearance is 0.130 mm; the supporting tolerance of bearing ball is 0.005, and the degree of wear of bearing can be reduced to accurate cooperation, has increased the life of bearing, has reduced the probability that the dust got into.

The bearing ball is in the bearing outer ring and the bearing inner ring and the stress included angle of the axial vertical line of the bearing is 32 degrees, the reasonable stress included angle can bear the maximum radial and axial comprehensive pressure, and the comprehensive stress ratio of the bearing is improved.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses the setting of bearing ball, bearing ball's diameter are phi 8.731mm, set up 2 rows, all inlay the dress on ball retainer, and every row of quantity is 14, compares bearing ball with the bearing of the same kind and goes out 4 more, can bear great radial pressure, makes single bearing ball atress even, and the effectual damage that causes the bearing when the moment that overturns bears that prevents effectively.

2. The ball retainer of the utility model, the bearing outer ring, the arrangement of the bearing ball and the bearing inner ring, the ball retainer, the bearing outer ring, the bearing ball and the bearing inner ring are matched with the radial clearance of 0.124mm at least and 0.130mm at most; the supporting tolerance of bearing ball is 0.005, and the degree of wear of bearing can be reduced to accurate cooperation, has increased the life of bearing, has reduced the probability that the dust got into.

3. The utility model discloses a bearing ball, bearing inner race and bearing inner race's setting, bearing ball are 32 with the atress contained angle of bearing axial plumb line in bearing inner race and bearing inner race, and reasonable atress contained angle can bear the biggest radial and axial combined pressure, has improved the comprehensive stress ratio of bearing.

4. The utility model discloses a ball retainer's setting, ball retainer set up to the wave, have good wear-resisting heat conductivity, have increased ball retainer's bulk strength and compressive capacity, prevent to cause not running of bearing because of ball retainer's damage, and its precision is high moreover, has good ball and keeps and the cooperation effect.

Drawings

Fig. 1 is a schematic view of the full-section structure of the present invention.

Fig. 2 is the schematic diagram of the structure of the bearing outer ring of the present invention.

Fig. 3 is a partial sectional view of the bearing inner race of the present invention.

In the figure:

1-ball retainer, 2-bearing outer ring, 21-outer ring body, 22-inner slideway, 3-bearing ball, 4-bearing inner ring, 41-chamfer, 42-outer slideway and 43-inner ring body.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in figures 1 to 3

The utility model provides a double row angular contact bearing for ultra-thin plate glass engraving and milling, including ball holder 1, bearing inner race 2, bearing ball 3 and bearing

inner race

4, 2 adoption of ball holder 1 set up to the wave, inlay between bearing inner race 4 and bearing outer race 2, and its single weight is 8.3 g; the bearing outer ring 2 is sleeved outside the bearing inner ring 4; the bearing balls 3 are embedded in the ball retainer 1 and are connected with the bearing outer ring 2 and the bearing inner ring 4 in a rolling way.

The bearing outer ring 2 and the bearing inner ring 4 are made of G9Cr18, the weights of the bearing outer ring and the bearing inner ring are 139.5G and 77.5G respectively, the bearing inner ring has strong overturning moment bearing capacity, and the bearing inner ring is suitable for working occasions with requirements on rigidity.

The bearing outer ring 2 comprises an outer ring body 21 and an inner slide 22, wherein the inner slide 22 is arranged in 2 and is arranged on the inner side of the outer ring body 21.

The bearing inner ring 4 comprises a chamfer 41, an outer slideway 42 and an inner ring body 43, wherein the chamfer 41 is arranged at 2 positions and is respectively arranged at two sides of the inner ring body 43; the outer slide ways 42 are arranged at 2 positions and are all arranged on the outer side of the inner ring body 43.

The diameter of the bearing ball 3 is phi 8.731mm, 2 rows are arranged and are all embedded on the ball retainer 1, the number of each row is 14, compared with the similar bearing, the number of the bearing ball 3 is 4, the radial pressure can be borne, the stress of the single bearing ball 3 is uniform, and the damage of the bearing caused by the strong overturning moment is effectively prevented.

The minimum radial clearance of the ball retainer 1, the bearing outer ring 2, the bearing ball 3 and the bearing inner ring 4 is 0.124mm, and the maximum radial clearance is 0.130 mm; the supporting tolerance of bearing ball 3 is 0.005, and the degree of wear of bearing can be reduced to accurate cooperation, has increased the life of bearing, has reduced the probability that the dust got into.

The stress included angle of the bearing ball 3 between the bearing outer ring 2 and the bearing inner ring 4 and the axial vertical line of the bearing is 32 degrees, the reasonable stress included angle can bear the maximum radial and axial comprehensive pressure, and the comprehensive stress ratio of the bearing is improved.

Principle of operation

In the utility model, in the bearing work, the diameter of the bearing ball 3 is phi 8.731mm, 2 rows are arranged, all the rows are embedded on the ball retainer 1, the number of each row is 14, compared with the similar bearing, the bearing ball 3 has 4 more balls, and can bear larger radial pressure, so that the stress of the single bearing ball 3 is uniform, the damage of the bearing when the stronger overturning moment is borne is effectively prevented, the minimum radial clearance of the bearing ball 3 and the bearing inner ring 4 is 0.124mm, and the maximum radial clearance is 0.130 mm; and the supporting tolerance of the bearing ball 3 is +/-0.005, the precise matching can reduce the abrasion degree of the bearing, the service life of the bearing is prolonged, the probability of dust entering is reduced, the stress included angle between the bearing ball 3 and the axial vertical line of the bearing in the bearing outer ring 2 and the bearing inner ring 4 is 32 degrees, the reasonable stress included angle can bear the maximum radial and axial comprehensive pressure, the comprehensive stress ratio of the bearing is improved, the ball retainer 1 is set to be wavy, the bearing has good wear-resistant and heat-conductive properties, the overall strength and the pressure bearing capacity of the ball retainer 1 are increased, the non-running of the bearing caused by the damage of the ball retainer 1 is prevented, the precision is high, and the bearing has good ball keeping and matching effects.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. Ultra-thin sheet glass engraves and mills with double column angular contact bearing, its characterized in that: the bearing comprises a ball retainer (1), a bearing outer ring (2), bearing balls (3) and a bearing inner ring (4), wherein 2 ball retainers (1) are arranged in a wave shape and embedded between the bearing outer ring (2) and the bearing inner ring (4), and the single weight of each ball retainer is 8.3 g; the bearing outer ring (2) is sleeved outside the bearing inner ring (4); the bearing balls (3) are embedded in the ball retainer (1) and are in rolling connection with the bearing outer ring (2) and the bearing inner ring (4).

2. The ultra-thin plate glass engraving and milling double row angular contact bearing according to claim 1, wherein: the bearing outer ring (2) and the bearing inner ring (4) are made of G9Cr18, and the individual weights of the bearing outer ring and the bearing inner ring are 139.5G and 77.5G respectively.

3. The ultra-thin plate glass engraving and milling double row angular contact bearing according to claim 1, wherein: bearing inner race (2) are including outer circle body (21) and inner slide (22), inner slide (22) set up 2, all set up the inboard at outer circle body (21).

4. The ultra-thin plate glass engraving and milling double row angular contact bearing according to claim 1, wherein: the bearing inner ring (4) comprises a chamfer (41), an outer slide way (42) and an inner ring body (43), wherein the chamfer (41) is arranged at 2 positions and is respectively arranged at two sides of the inner ring body (43); the outer slide way (42) is arranged at the position 2 and is arranged at the outer side of the inner ring body (43).

5. The ultra-thin plate glass engraving and milling double row angular contact bearing according to claim 1, wherein: the diameter of the bearing ball (3) is phi 8.731mm, 2 rows are arranged and are all embedded on the ball retainer (1), and the number of each row is 14.

6. The ultra-thin plate glass engraving and milling double row angular contact bearing according to claim 1, wherein: the minimum radial clearance of the ball retainer (1), the bearing outer ring (2), the bearing ball (3) and the bearing inner ring (4) is 0.124mm, and the maximum radial clearance is 0.130 mm; the matching tolerance of the bearing ball (3) is +/-0.005.

7. The ultra-thin plate glass engraving and milling double row angular contact bearing according to claim 1, wherein: and the bearing balls (3) and the axial vertical line of the bearing in the bearing outer ring (2) and the bearing inner ring (4) form a stress included angle of 32 degrees.