CN104088898A - Composite ball bearing device - Google Patents
Composite ball bearing device Download PDFInfo
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- CN104088898A CN104088898A CN201410340216.2A CN201410340216A CN104088898A CN 104088898 A CN104088898 A CN 104088898A CN 201410340216 A CN201410340216 A CN 201410340216A CN 104088898 A CN104088898 A CN 104088898A
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Abstract
The invention discloses a composite ball bearing device which comprises a shaft 1, an outer ring 2, an inner ring 3, inner roller path grooves 4-1 and 4-2, outer roller path grooves 5-1 and 5-2, balls 6-1 and 6-2 and a retainer 7, wherein the shaft 1 comprises a shaft part 1-1 with a large diameter and a shaft part 2 with a small diameter; an annular rectangular groove 9 is formed in the middle section of the outer side surface of the outer ring 2; an upper opening of the short inner ring is flush with that of the long outer ring 2; the inner side surface of the inner ring 3 is tightly matched with the cylindrical surfaces of the shaft parts 1and 2; the outer diameter of the inner ring 3 is equal to the diameter of the shaft part 1-1; the inner roller path groove 4-1 is formed in the middle of the outer side surface of the inner ring 3; the inner roller path groove 4-2 is formed in the cylindrical surface of the shaft part 1-1; the outer roller path grooves 5-1 and 5-2 are formed in the inner sides of two ends of the outer ring 2; both the balls 6-1 and 6-2 are made of steel or ceramic and have the same amount and ball diameter; the inner diameter of an extrusion ring 8 is smaller than the outer diameter of the groove 9, so that the extrusion ring 8 can be embedded into the groove 9 and extrudes the middle section of the outer ring 2 to bend and protrude inwards. The composite ball bearing device is used in rotating parts of automatic office devices and comprises multiple sets of technical implementation schemes.
Description
Technical field
The invention belongs to novel mechanical product auxiliary equipment technical field, relate to a kind of improved bearing means, especially a kind of compound ball bearing unit.
Background technique
The compound ball bearing unit of one of the present invention, for the rotating part of business automation equipment, by motor as driving the driver of disk, CD or hard disk, or as the swing arm of computer peripheral.
The device of prior art is by two identical ball bearing strings together, carrys out common supporting driving shaft, as shown in Figure 7,1 ' be live axle, 2 ' be upper ball bearing, 3 ' be lower ball bearing, 4 ' for entangling the sleeve of two bearings, 5 ' for separating the isolating cylinder of two bearings.The shortcoming of prior art is, when the frictional heat producing in bearing means itself or the outside heat energy effect of supplying with and rotation or operation, form the rising of bearing temperature, inconsistent with the expansion of components and parts, thereby affect the rotating mass of bearing means, meanwhile, the also bad solution of noise being produced by housing resonance.
The present invention changes into one by existing two bearings series connection and is arranged with integrated apparatus upper and lower double scrolls arrays, that axle and ball bearing close-coupled are integrated, overcome the lack of uniformity that causes parts to expand because of the difference of temperature rise order, simultaneously, by longer straight tube shape outer ring tighten up waist inwardly curved go out, its suitable preload can be constantly applied on the parts of device, to change resonant frequency, thereby improve degree of accuracy and quietness that device rotates, deferred maintenance cycle and working life.
Summary of the invention
In order to overcome the deficiencies in the prior art, realize the present invention and improve the degree of accuracy of device rotation and the object of quietness, spy provides a kind of many covers technological scheme of compound ball bearing unit as follows.
The first technological scheme of the present invention is: a kind of compound ball bearing unit, comprise axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, it is characterized in that: described axle 1 comprises having the axial region 1-2 that larger-diameter axial region 1-1 and diameter reduce, described outer ring 2 is longer, be provided with ring-type rectangular recess 9 in the stage casing of its outer side surface, described inner ring 3 is shorter, inner ring 3 flushes with outer ring 2 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axial region 1-2, the equal diameters of the external diameter of inner ring 3 and axial region 1-1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axial region 1-1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side at 2 two ends, outer ring, the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery and quantity and sphere diameter and all equate, be further characterized in that: the wall thickness of described extrusion ring 8 equals the degree of depth of groove 9, the width that highly equals groove 9, internal diameter and is less than the external diameter of groove 9 bottom surfaces, to can imbed groove 9 in the time of squeeze job, and by the stage casing extruding of outer ring 2 become bend towards interior outstanding.
The second technological scheme of the present invention is: a kind of compound ball bearing unit, comprise axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, it is characterized in that: described outer ring 2 is longer, be provided with ring-type rectangular recess 9 in the stage casing of its outer side surface, described inner ring 3 is shorter, inner ring 3 flushes with outer ring 2 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axle 1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axle 1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side at 2 two ends, outer ring, the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery, the sphere diameter of ball 6-1 is significantly smaller than the sphere diameter of ball 6-2, be further characterized in that: the wall thickness of described extrusion ring 8 equals the degree of depth of groove 9, the width that highly equals groove 9, internal diameter and is less than the external diameter of groove 9 bottom surfaces, to can imbed groove 9 in the time of squeeze job, and by the stage casing extruding of outer ring 2 become bend towards interior outstanding.
The 3rd technological scheme of the present invention is: a kind of compound ball bearing unit, comprise axle 1, enclose up and down 2-1 and 2-1 outward, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, it is characterized in that: described axle 1 comprises having the axial region 1-2 that larger-diameter axial region 1-1 and diameter reduce, described outside upper ring 2-1 and outer lower ring 2-2 are upper and lower symmetrical and equal, the bottom of outside upper ring 2-1 outer side surface is provided with downward right angle groove 9-1, the top of outer lower ring 2-2 outer side surface is provided with right angle groove 9-2 upwards, groove 9-1 and 9-2 size equate, described inner ring 3 is shorter, inner ring 3 flushes with outside upper ring 2-1 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axial region 1-2, the equal diameters of the external diameter of inner ring 3 and axial region 1-1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axial region 1-1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side of outside upper ring 2-1 and outer lower ring 2-2 upper and lower end, the center line of two grooves equates to the distance of upper and lower end face, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery and quantity and sphere diameter and all equate, be further characterized in that: the wall thickness of described extrusion ring 8 equals the radial length of groove 9-1 or 9-2, highly equals the external diameter that axial length, internal diameter that groove 9-1 adds 9-2 are less than groove 9-1 or 9-2 surface, to can imbed groove 9-1 and 9-2 in the time of squeeze job, and outer adapter section extruding of enclosing up and down 2-1 and 2-2 is become and bends towards interior giving prominence to.
The 4th technological scheme of the present invention is: a kind of compound ball bearing unit, comprise axle 1, enclose up and down 2-1 and 2-2 outward, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, it is characterized in that: described outside upper ring 2-1 and outer lower ring 2-2 are upper and lower symmetrical and equal, the bottom of outside upper ring 2-1 outer side surface is provided with downward right angle groove 9-1, the top of outside upper ring 2-2 outer side surface is provided with right angle groove 9-2 upwards, groove 9-1 and 9-2 size equate, described inner ring 3 is shorter, inner ring 3 flushes with outside upper ring 2-1 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axle 1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axle 1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side of outside upper ring 2-1 and outer lower ring 2-2 upper and lower end, the center line of two grooves equates to the distance of upper and lower end face, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery, the sphere diameter of ball 6-1 is significantly smaller than the sphere diameter of ball 6-2, be further characterized in that: the wall thickness of described extrusion ring 8 equals the radial length of groove 9-1 or 9-2, highly equals the external diameter that axial length, internal diameter that groove 9-1 adds 9-2 are less than groove 9-1 or 9-2 surface, to can imbed groove 9-1 and 9-2 in the time of squeeze job, and outer adapter section extruding of enclosing up and down 2-1 and 2-2 is become and bends towards interior giving prominence to.
The 5th technological scheme of the present invention is: a kind of compound ball bearing unit, comprise axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, it is characterized in that: described axle 1 comprises having the axial region 1-2 that larger-diameter axial region 1-1 and diameter reduce, described inner ring 3 is shorter, inner ring 3 flushes with outer ring 2 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axial region 1-2, the equal diameters of the external diameter of inner ring 3 and axial region 1-1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axial region 1-1, described outer raceway groove 5-1 and 5-2 set up the inner side at 2 two ends, outer ring separately, the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery and quantity and sphere diameter and all equate, be further characterized in that: the outer side surface of described outer ring 2, be provided with the sleeve 10 of and tight cover contour with it, the inner side surface middle part of described sleeve 10 is provided with wider ring-type rectangular protrusions, so that this projection can bend towards interior outstanding by the stage casing extruding change of outer ring 2 in the time of tight cover operation.
The 6th technological scheme of the present invention is: a kind of compound ball bearing unit, comprise axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, it is characterized in that: described inner ring 3 is shorter, inner ring 3 flushes with outer ring 2 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axle 1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axle 1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side at 2 two ends, outer ring, the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery, the sphere diameter of ball 6-1 is significantly smaller than the sphere diameter of ball 6-2, be further characterized in that: the outer side surface of described outer ring 2, be provided with the sleeve 10 of and tight cover contour with it, the inner side surface middle part of described sleeve 10 is provided with wider ring-type rectangular protrusions, so that this projection can bend towards interior outstanding by the stage casing extruding change of outer ring 2 in the time of tight cover operation.
Although above-mentioned certain aspects of the present invention illustrated and described, variations and modifications can be considered in the scope that does not depart from spirit of the present invention.
Brief description of the drawings
Fig. 1 is the longitudinal sectional view of a kind of compound ball bearing unit the first mode of execution of the present invention;
Fig. 2 is the longitudinal sectional view of a kind of compound ball bearing unit the second mode of execution of the present invention;
Fig. 3 is the longitudinal sectional view of a kind of compound ball bearing unit the 3rd mode of execution of the present invention;
Fig. 4 is the longitudinal sectional view of a kind of compound ball bearing unit the 4th mode of execution of the present invention;
Fig. 5 is the longitudinal sectional view of a kind of compound ball bearing unit the 5th mode of execution of the present invention;
Fig. 6 is the longitudinal sectional view of a kind of compound ball bearing unit the 6th mode of execution of the present invention;
Fig. 7 is that the device of two bearing series connection of prior art is longitudinally analysed and observe and looked.
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Embodiment
Referring to accompanying drawing 1, a kind of compound ball bearing unit of the present invention, the First Characteristic of the first mode of execution is: Step Shaft is set, inner ring 3 is placed on the axial region 1-2 of axle 1 small diameter, make the external diameter of inner ring 3 consistent with the diameter of axle 1 1-1 of larger axis portion, be conducive to the upper and lower end inner side that the ball 6-1 of identical material, quantity, sphere diameter and the upper and lower double scrolls arrays of 6-2 and retainer composition thereof are symmetricly set on outer ring 2, form the compound tourelle that arbor and bearing combine together; Second Characteristic is: extrusion ring 8 is set, extrusion ring 8 is placed in the groove 9 at 2 middle parts, outer ring by the contraction technology that uses press fit, because the internal diameter of extrusion ring 8 is less than the external diameter of groove 9, therefore the stage casing extruding of outer ring 2 can be become and bends towards interior giving prominence to, but should notice that the amount of deformation that outer ring 2 is extruded must be in the limit of elasticity of its material therefor.
Referring to accompanying drawing 2, a kind of compound ball bearing unit of the present invention, the First Characteristic of the second mode of execution is: do not establish Step Shaft, inner ring 3 is placed on axle 1, because inner ring 3 has tied up the radial space between outer ring 2, the sphere diameter of ball 6-1 is dwindled, quantity increases, but the correspondence of all inside and outside center lines of raceway groove and the horizontal central line of upper and lower two scrolls arrays overlaps, and the material of ball 6-1 and 6-2 is all steel or pottery, in full accord with the first embodiment; Second Characteristic is: extrusion ring 8 is set, extrusion ring 8 is placed in the groove 9 at 2 middle parts, outer ring by the contraction technology that uses press fit, because the internal diameter of extrusion ring 8 is less than the external diameter of groove 9, therefore the stage casing extruding of outer ring 2 can be become and bends towards interior giving prominence to, but should notice that the amount of deformation that outer ring 2 is extruded must be in the limit of elasticity of its material therefor.
Referring to accompanying drawing 3, a kind of compound ball bearing unit of the present invention, the First Characteristic of the 3rd mode of execution is: Step Shaft is set, inner ring 3 is placed on the axial region 1-2 of axle 1 small diameter, make the external diameter of inner ring 3 consistent with the diameter of axle 1 1-1 of larger axis portion, be conducive to the upper and lower end inner side that the ball 6-1 of identical material, quantity, sphere diameter and the upper and lower double scrolls arrays of 6-2 and retainer composition thereof are symmetricly set on outside upper ring 2-1 and outer lower ring 2-2, form the compound tourelle that arbor and bearing combine together; Second Characteristic is: outer ring 2 is divided into outside upper ring 2-1 and outer lower ring 2-2, simultaneously, extrusion ring 8 is set, extrusion ring 8 is placed in the groove 9-1 and 9-2 of outside upper ring 2-1 and outer lower ring 2-2 adapter section by the contraction technology that uses press fit, because the internal diameter of extrusion ring 8 is less than the external diameter of groove 9-1 and 9-2, therefore the adapter section extruding of outside upper ring 2-1 and outer lower ring 2-2 can be become and bends towards interior giving prominence to.
Referring to accompanying drawing 4, a kind of compound ball bearing unit of the present invention, the First Characteristic of the 4th mode of execution is: do not establish Step Shaft, inner ring 3 is placed on axle 1, because inner ring 3 has tied up the radial space between outside upper ring 2-1, the sphere diameter of ball 6-1 is dwindled, quantity increases, but the correspondence of all inside and outside center lines of raceway groove and the horizontal central line of upper and lower two scrolls arrays overlaps, and the material of ball 6-1 and 6-2 is all steel or pottery, in full accord with all embodiments; Second Characteristic is: outer ring 2 is divided into outside upper ring 2-1 and outer lower ring 2-2, simultaneously, extrusion ring 8 is set, extrusion ring 8 is placed in the groove 9-1 and 9-2 of outside upper ring 2-1 and outer lower ring 2-2 adapter section by the contraction technology that uses press fit, because the internal diameter of extrusion ring 8 is less than the external diameter of groove 9-1 and 9-2, therefore the adapter section extruding of outside upper ring 2-1 and outer lower ring 2-2 can be become and bends towards interior giving prominence to.
Referring to accompanying drawing 5, a kind of compound ball bearing unit of the present invention, the First Characteristic of the 5th mode of execution is: Step Shaft is set, inner ring 3 is placed on the axial region 1-2 of axle 1 small diameter, make the external diameter of inner ring 3 consistent with the diameter of axle 1 1-1 of larger axis portion, be conducive to the upper and lower end inner side that the ball 6-1 of identical material, quantity, sphere diameter and the upper and lower double scrolls arrays of 6-2 and retainer composition thereof are symmetricly set on outer ring 2, form the compound tourelle that arbor and bearing combine together; Second Characteristic is: sleeve 10 is set, and sleeve 10 edges are enclosed within the outer side surface of outer ring 2, contour with outer ring 2, are provided with wider ring-type rectangular protrusions in the middle part of the inner side surface of sleeve 10, and when the operation of edge cover, this projection can become the stage casing extruding of outer ring 2 to bend towards interior giving prominence to.
Referring to accompanying drawing 6, a kind of compound ball bearing unit of the present invention, the First Characteristic of the 6th mode of execution is: do not establish Step Shaft, inner ring 3 is placed on axle 1, because inner ring 3 has tied up the radial space between outside upper ring 2-1, the sphere diameter of ball 6-1 is dwindled, quantity increases, but the correspondence of all inside and outside center lines of raceway groove and the horizontal central line of upper and lower two scrolls arrays overlaps, and the material of ball 6-1 and 6-2 is all steel or pottery, in full accord with all embodiments; Second Characteristic is: sleeve 10 is set, and sleeve 10 edges are enclosed within the outer side surface of outer ring 2, contour with outer ring 2, are provided with wider ring-type rectangular protrusions in the middle part of the inner side surface of sleeve 10, and when the operation of edge cover, this projection can become the stage casing extruding of outer ring 2 to bend towards interior giving prominence to.
In sum, a kind of compound ball bearing unit of the present invention, about rolling structure aspect, first and third, five example for Step Shaft type is set, inner ring 3 is enclosed within on the axial region 1-2 reducing, its external diameter equates with larger axial region 1-1, cause upper and lower double scrolls arrays identical, second, four, six example for not establishing Step Shaft type, inner ring 3 has tied up the radial space between outer ring 2, make ball 6-1 be significantly smaller than 6-2, therefore upper and lower double scrolls arrays horizontal central line is identical, sphere diameter, quantity are not etc.; About extruding race deformation aspect, first and second example is encircled 8 extrusion mouldings for complete outer ring 2 is squeezed, technical difficulty is very large, third and fourth example is encircled 8 extrusion mouldings for segmentation outer ring 2-1,2-2 are squeezed, technical difficulty is larger, five, six examples are subject to sleeve 10 central protrusion extrusion mouldings for outer ring 2, and technical difficulty is general.
Claims (6)
1. a compound ball bearing unit, comprises axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, described axle 1 comprises the axial region 1-2 that larger-diameter axial region 1-1 and diameter reduce, the stage casing of described outer ring 2 outer side surfaces is provided with ring-type rectangular recess 9, described inner ring 3 flushes with outer ring 2 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axial region 1-2, the equal diameters of the external diameter of inner ring 3 and axial region 1-1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axial region 1-1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side at 2 two ends, outer ring, the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery and quantity and sphere diameter and all equate, the wall thickness of described extrusion ring 8 equals the degree of depth of groove 9, the width that highly equals groove 9, internal diameter and is less than the external diameter of groove 9, to can imbed groove 9 in the time of squeeze job, and by the stage casing extruding of outer ring 2 become bend towards interior outstanding.
2. a compound ball bearing unit, comprises axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7; The stage casing of described outer ring 2 outer side surfaces is provided with ring-type rectangular recess 9, described inner ring 3 flushes with outer ring 2 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axle 1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axle 1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side at 2 two ends, outer ring, the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery, and the sphere diameter of ball 6-1 is less than 6-2; The wall thickness of described extrusion ring 8 equals the degree of depth of groove 9, the width that highly equals groove 9, internal diameter and is less than the external diameter of groove 9, to can imbed groove 9 in the time of squeeze job, and by the stage casing extruding of outer ring 2 become bend towards interior outstanding.
3. a compound ball bearing unit, comprises axle 1, outer 2-1 and 2-1, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, the retainer 7 of enclosing up and down, described axle 1 comprises the axial region 1-2 that larger-diameter axial region 1-1 and diameter reduce, described outside upper ring 2-1 and outer lower ring 2-2 are upper and lower symmetrical and equal, the bottom of outside upper ring 2-1 outer side surface is provided with downward right angle groove 9-1, the top of outer lower ring 2-2 outer side surface is provided with right angle groove 9-2 upwards, described inner ring 3 flushes with outside upper ring 2-1 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axial region 1-2, the equal diameters of the external diameter of inner ring 3 and axial region 1-1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axial region 1-1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side of outside upper ring 2-1 and outer lower ring 2-2 upper and lower end, the center line of two grooves equates to the distance of upper and lower end face, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery and quantity and sphere diameter and all equate, the wall thickness of described extrusion ring 8 equals the radial length of groove 9-1 or 9-2, highly equals the external diameter that axial length, internal diameter that groove 9-1 adds 9-2 are less than groove 9-1 or 9-2, to can imbed groove 9-1 and 9-2 in the time of squeeze job, and outer adapter section extruding of enclosing up and down 2-1 and 2-2 is become and bends towards interior giving prominence to.
4. a compound ball bearing unit, comprises axle 1, outer 2-1 and 2-2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, the retainer 7 of enclosing up and down, described outside upper ring 2-1 and outer lower ring 2-2 are upper and lower symmetrical and equal, the bottom of outside upper ring 2-1 outer side surface is provided with downward right angle groove 9-1, the top of outside upper ring 2-2 outer side surface is provided with right angle groove 9-2 upwards, described inner ring 3 flushes with outside upper ring 2-1 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axle 1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axle 1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side of outside upper ring 2-1 and outer lower ring 2-2 upper and lower end, the center line of two grooves equates to the distance of upper and lower end face, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery, the sphere diameter of ball 6-1 is less than 6-2, the wall thickness of described extrusion ring 8 equals the radial length of groove 9-1 or 9-2, highly equals the external diameter that axial length, internal diameter that groove 9-1 adds 9-2 are less than groove 9-1 or 9-2, to can imbed groove 9-1 and 9-2 in the time of squeeze job, and outer adapter section extruding of enclosing up and down 2-1 and 2-2 is become and bends towards interior giving prominence to.
5. a compound ball bearing unit, comprises axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7, described axle 1 comprises the axial region 1-2 that larger-diameter axial region 1-1 and diameter reduce, described outer ring 2 flushes with inner ring 3 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axial region 1-2, the equal diameters of the external diameter of inner ring 3 and axial region 1-1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axial region 1-1, described outer raceway groove 5-1 and 5-2 set up the inner side at 2 two ends, outer ring separately, the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and the center line corresponding coincidence respectively with interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery and quantity and sphere diameter and all equate, the outer side surface of described outer ring 2, is provided with the sleeve 10 of contour and tight cover, and the inner side surface middle part of described sleeve 10 is provided with wider ring-type rectangular protrusions, so as in the time of tight cover operation this projection the stage casing extruding of outer ring 2 can be become bend towards interior outstanding.
6. a compound ball bearing unit, comprises axle 1, outer ring 2, inner ring 3, interior raceway groove 4-1 and 4-2, outer raceway groove 5-1 and 5-2, ball 6-1 and 6-2, retainer 7; Described inner ring 3 flushes with outer ring 2 is suitable for reading, the cylndrical surface close-fitting of the inner side surface of inner ring 3 and axle 1, described interior raceway groove 4-1 is located in the middle of the outer side surface of inner ring 3, interior raceway groove 4-2 is located on the cylndrical surface of axle 1, described outer raceway groove 5-1 and 5-2 are located at respectively the inner side at 2 two ends, outer ring, and the center line of two grooves equates to the distance of 2 upper and lower end faces, outer ring, and distinguishes corresponding coincidence with the center line of interior raceway groove 4-1 and 4-2, described ball 6-1 and 6-2 are all steel or pottery, and the sphere diameter of ball 6-1 is less than 6-2; The outer side surface of described outer ring 2, is provided with the sleeve 10 of contour and tight cover, and the inner side surface middle part of described sleeve 10 is provided with wider ring-type rectangular protrusions, so as in the time of tight cover operation this projection the stage casing extruding of outer ring 2 can be become bend towards interior outstanding.
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|---|---|---|---|
| CN201410340216.2A CN104088898A (en) | 2014-07-16 | 2014-07-16 | Composite ball bearing device |
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| CN201410340216.2A CN104088898A (en) | 2014-07-16 | 2014-07-16 | Composite ball bearing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110100088A (en) * | 2017-01-02 | 2019-08-06 | 株式会社科伦斯 | Valve module with the operation of improved cylindrical cam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3639019A (en) * | 1969-07-01 | 1972-02-01 | Schaeffler Ohg Industriewerk | Radial ball bearings |
| US6599021B2 (en) * | 2000-06-19 | 2003-07-29 | Minebea Kabushiki-Kaisha | Compound bearing apparatus |
| US6655847B2 (en) * | 2000-10-04 | 2003-12-02 | Minebea Co., Ltd. | Pivot bearing assembly |
| JP2004092768A (en) * | 2002-08-30 | 2004-03-25 | Nsk Ltd | Rolling bearing |
| CN1497192A (en) * | 2002-09-24 | 2004-05-19 | 美蓓亚株式会社 | Double row ball bearing and double row ball bearing preload applying method |
| CN204113886U (en) * | 2014-07-16 | 2015-01-21 | 安徽枞晨回转支承有限公司 | A kind of compound ball bearing unit |
-
2014
- 2014-07-16 CN CN201410340216.2A patent/CN104088898A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3639019A (en) * | 1969-07-01 | 1972-02-01 | Schaeffler Ohg Industriewerk | Radial ball bearings |
| US6599021B2 (en) * | 2000-06-19 | 2003-07-29 | Minebea Kabushiki-Kaisha | Compound bearing apparatus |
| US6655847B2 (en) * | 2000-10-04 | 2003-12-02 | Minebea Co., Ltd. | Pivot bearing assembly |
| JP2004092768A (en) * | 2002-08-30 | 2004-03-25 | Nsk Ltd | Rolling bearing |
| CN1497192A (en) * | 2002-09-24 | 2004-05-19 | 美蓓亚株式会社 | Double row ball bearing and double row ball bearing preload applying method |
| CN204113886U (en) * | 2014-07-16 | 2015-01-21 | 安徽枞晨回转支承有限公司 | A kind of compound ball bearing unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110100088A (en) * | 2017-01-02 | 2019-08-06 | 株式会社科伦斯 | Valve module with the operation of improved cylindrical cam |
| CN110100088B (en) * | 2017-01-02 | 2021-04-16 | 株式会社科伦斯 | Valve assembly with improved cylindrical cam operation |
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Application publication date: 20141008 |