CN203926368U - The accurate ball socket bearing of revolving type - Google Patents
The accurate ball socket bearing of revolving type Download PDFInfo
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- CN203926368U CN203926368U CN201420337415.3U CN201420337415U CN203926368U CN 203926368 U CN203926368 U CN 203926368U CN 201420337415 U CN201420337415 U CN 201420337415U CN 203926368 U CN203926368 U CN 203926368U
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- axostylus axostyle
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Abstract
The accurate ball socket bearing of a kind of revolving type, for the precision plane motion of marine naval vessels precision type instrument support platform (impactor) lower link mechanism.The thread spindle of steel ball and axostylus axostyle is connected to form club body, axostylus axostyle is connected with power source through connecting sleeve through upper ball-and-socket, locking nut is fastened on axostylus axostyle, steel ball stands on lower ball-and-socket, the junction, middle part of upper ball-and-socket and lower ball-and-socket be designed with seam feel relieved, spacing, junction, edge is designed with screw thread and screws fasteningly, and screw, elastic washer are fastened on upper ball-and-socket, lower ball-and-socket on base; The upper end oral area of upper ball-and-socket is equipped with the oral area reverse buckling type seal closure of making of chloroprene rubber material.The utlity model has the feature that Self-aligning, shock resistance and stretch capability are high, greasy property is good.
Description
Technical field
The utility model relates to bearing manufacturing technology field, is the accurate ball socket bearing of a kind of revolving type specifically.
Background technique
Motor element in linkage mechanism in existing marine naval vessels precision type instrument support platform (impactor), it is up-to-date that what select is the accurate ball socket bearing of a kind of bolt matable, there is in actual applications following problem in the element of this structure:
1, for ensureing shock resistance and tensile strength and the precision of the accurate ball socket bearing of bolt matable, steel ball body and upper and lower ball-and-socket self-alignment, with bolts fastening, taper pin is spacing, but in its course of working, because upper and lower ball-and-socket is taked first split roughing, taking taper pin as processing positioning datum, remerging overall fine finishing, especially in the time of abrasive machining, control axial clearance and need to dismantle continually for installation club body, detection, can bring thus a lot of inconvenience and trouble.
2, steel ball body adopts electrical spark to get through hole and bolt hole, be connected with club by high-strength bolt, consequently steel ball base plane and sphere form a chamfering of removing acute angle, steel ball body rotates in sliding pair ball-and-socket, while waving, this chamfering is easily by ball-and-socket surface tear, especially accurate ball socket bearing is in the time being subject to load impacting and vibration, this critical defect can seriously chew unhardened ball-and-socket surface, cause accurate ball socket bearing to be easy to stuck, and the through hole of steel ball body is also difficult for ensureing at the coaxial accuracy that adds man-hour and steel ball surface, thereby also affect its rotating flexibility.
3, the turriform seal closure on the accurate ball socket bearing of bolt matable, upper oral part and flat side's cross-contact, its seamed edge easily bites its oral area, while especially using spanner, more easily its oral area is damaged.
Summary of the invention
For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of revolving type accurate ball socket bearing, and to realize axial clearance under micron state, ball socket bearing can be in every way steadily, motion reliably.
For achieving the above object, the screw thread spindle nose of steel ball of the present utility model and axostylus axostyle is connected to form club body, axostylus axostyle is connected with power source through connecting sleeve through upper ball-and-socket, locking nut is fastened on axostylus axostyle, steel ball stands on lower ball-and-socket, junction, the middle part band of upper ball-and-socket and lower ball-and-socket is useful on its centering, spacing seam, and junction, edge band is useful on ball-and-socket and lower ball-and-socket screws fastening internal and external screw thread, and screw, elastic washer are fastened on upper ball-and-socket, lower ball-and-socket on base; The upper end oral area of upper ball-and-socket is equipped with the oral area reverse buckling type seal closure of making of chloroprene rubber material.
Described upper ball-and-socket is asymmetric with lower ball-and-socket and contacts, and lower ball-and-socket surface of contact is greater than ball-and-socket surface of contact.
Described lower ball-and-socket bottom outside is provided with the positioning spigot supporting with base; Described lower ball-and-socket bottom is enclosed construction.
Described upper ball-and-socket band is useful on four hinge lasts that pliers type spanner screws.
A plane has been cut on the top of described steel ball, and the central upper portion of steel ball is with step hole, and on axostylus axostyle, with the step coordinating with the step hole of steel ball, steel ball and axostylus axostyle are felt relieved by step surface, and steel ball bottom is complete formula spheric structure, on axostylus axostyle with the conical surface and flat side.
The utility model compared with prior art, according to the basic principle of bulb spherical plain bearing rod end and feature, has carried out special design for applying working condition and the working environment of precision type instrument support platform (impactor), has the following advantages:
1. for ensureing the easy machining accuracy of ball socket bearing, ball-and-socket is upper and lower split type, coordinate centering, spacing by inside and outside seam, the design proposal that internal and external screw thread screws, add and take overall fine finishing again after first split roughing man-hour, especially add man-hour at smooth grinding together with club body, can screw on grinding limit, limit, not only effectively ensure the conformity of two ball-and-socket dimensional accuracies and geometric accuracy, greatly improve the contact precision of ball-and-socket inner ball surface and spherome surface, but also saved the manufacturing cost of abrasive tool.Meanwhile, change inside and outside seam cooperation centering, the needs of frequent dismounting while being very easy to smooth grinding processing into because having cancelled taper pin location.
2. for improving the geometric accuracy of ball socket bearing, axostylus axostyle takes split type, inside and outside step surface centering, internal and external screw thread to be connected design with steel ball.Steel ball adopts high-carbon-chromium bearing steel material, and surface accuracy can be carried out fine finishing by professional equipment, and its surface roughness, circularity, dimensional accuracy are higher.Steel ball top and heart portion, clamp reconditioning plane, processing step hole and tapped hole by the disposable location of highi degree of accuracy frock, and the coaxial accuracy of perpendicularity, hole and the sphere of steel ball plane and the centre of sphere is guaranteed.On axostylus axostyle, be designed with the Step Shaft coordinating with steel ball step hole slight interference and the thread spindle being attached thereto, by disposable clamping machine shaping, after being equipped with steel ball, the machining accuracy of its club body entirety has had Reliability Assurance.
3. for improving the durability of ball socket bearing, upper and lower ball-and-socket and axostylus axostyle all use the material of easy processing stainless steel quality adjustment condition, and upper and lower ball-and-socket also needs after integral quenching, ball-and-socket surface and seam are again through thick, fine grinding, abrasive machining, upper and lower ball-and-socket is by inside and outside seam centering, spacing, screwed after connection by internal and external screw thread, then connect and be fastened on base with high-strength bolt; Club body also connects fastening by the centering of inside and outside step surface, internal and external screw thread, smear high strength screw thread glue simultaneously and strengthened fasteningly, and its join strength can fully meet the withstand shocks requirement of load and tension load of ball socket bearing.
4. after the machining accuracy of upper and lower ball-and-socket inner ball surface, axostylus axostyle and steel ball improves, the axial clearance of ball socket bearing can reach 0.005-0.008 micron, under micron gap state, can keep good flexibility of revolution, in certain range of tilt angles, can realize plane motion different modes, degree of precision.Verify by test of many times, can make the recovery precision after precision type instrument support platform (impactor) is impacted reach " 20 seconds " level state.
5. a plane has been cut on steel ball body top, has step hole, tapping (vexed) hole at the Center of plane, and the bottom of steel ball is complete formula sphere, after being connected, forms the complete formula club of sphere body with axostylus axostyle centering.This structure club body rotates, waves in ball-and-socket, when shock and vibration, under the effect of lubricating grease, by the smooth contact precision of complete formula sphere and ball-and-socket, can effectively ensure its flexibility of revolution.Thereby avoided invar spherome surface corner angle, burr, and the scuffing producing on ball-and-socket surface causes ball socket bearing after shock and vibration, to produce the phenomenon of clamping stagnation.
6. the M shape oral area reverse buckling type seal closure of going up ball-and-socket upper end oral area adopts neoprene to make, and has dustproof, oil storage function and ageing-resistant performance, can make the lubricating grease cleaning of ball socket bearing, and greasy property is lasting, and durability increases substantially.In addition, because of the back-off pattern feature of its oral area, both avoided and the flat side's of axostylus axostyle cross-contact, avoided again flat side's seamed edge and the damage and fracture of spanner to it.Meanwhile, more firm after also making seal closure install, and be difficult for slippage.
Brief description of the drawings
Fig. 1 is structure diagram of the present utility model.
Fig. 2 is plan view of the present utility model.
Fig. 3 is the flat side N-N of axostylus axostyle sectional view.
Embodiment
As shown in Figure 1, the utility model is mainly made up of lower ball-and-socket 1, elastic washer 2 and high-strength screw 3, upper ball-and-socket 4, steel ball 5, connecting sleeve 6, locking nut 7, axostylus axostyle 8, seal closure 9, base 10 etc.Upper ball-and-socket 4 of the present utility model is designed with inside and outside seam D with the junction, middle part of lower ball-and-socket 1, for the centering of upper ball-and-socket 4 and lower ball-and-socket 1, spacing, junction, edge is designed with internal and external screw thread E, fastening with screwing of lower ball-and-socket 1 for upper ball-and-socket 4, lower ball-and-socket 1 bottom adopts closed design, can form oil storage oil pocket, upper ball-and-socket 4 is asymmetric with lower ball-and-socket 1 and contacts, lower ball-and-socket 1 surface of contact is greater than ball-and-socket 3 surface of contact, and lower ball-and-socket 1 bottom outside has the installation positioning spigot F supporting with base 10; A plane has been cut on the top of steel ball 5, the central upper portion of steel ball 5 is with step hole, on axostylus axostyle 8 with the Step Shaft coordinating with the step hole of steel ball 5, the Center of steel ball 5 has tapped hole, coordinate with the screw thread spindle nose A of axostylus axostyle 8, the bottom of steel ball 5 is complete formula sphere, on axostylus axostyle 8 with conical surface B and flat side H, steel ball 5 is felt relieved by step surface C with axostylus axostyle 8, and steel ball 5 is connected to form club body with the screw thread spindle nose A of axostylus axostyle 8; Axostylus axostyle 8 is connected with power source through connecting sleeve 6 through upper ball-and-socket 4, be fastened on axostylus axostyle 8 by locking nut 7, steel ball 5 stands on lower ball-and-socket 1, upper ball-and-socket 4, lower ball-and-socket 1 are spacing by seam D centering, internal and external threads E screws connections, use special pliers type spanner utilization hinge last G fastening after, then be fastened on base 10 with high-strength screw 3 and elastic washer 2; The upper end oral area of upper ball-and-socket 4 is equipped with M shape oral area reverse buckling type seal closure 9, and M shape oral area reverse buckling type seal closure 9 is chloroprene rubber material.
For ensureing machining accuracy of the present utility model, shock resistance and tensile strength, by axostylus axostyle 8 and steel ball 5 split designs, after axostylus axostyle 8 is processed respectively with steel ball 5, smear high strength screw thread glue and link into an integrated entity by inside and outside step surface centering, internal and external threads, make full use of the original precision of steel ball 5, effectively ensure the overall precision of club body.Upper ball-and-socket 4, lower ball-and-socket 1 are also taked to split design simultaneously, the inside and outside seam centering of upper and lower ball-and-socket, spacing, screw connection by internal and external screw thread, add and adopt corrosion-resistant, the modified material of resistance to wearing man-hour, overall finish turning processing again after the rough turn processing of first split, the upper ball-and-socket 4, the lower ball-and-socket that contact with steel ball 5 carry out integral quenching, carry out again thick, fine grinding and abrasive machining, and carry out same labelled notation at the end face of two parts, thereby the conformity that has effectively ensured two ball-and-socket dimensional accuracies and geometric accuracy, has improved the contact precision on ball-and-socket inner ball surface and steel ball 5 surfaces greatly.When assembling, the upper and lower ball-and-socket of outwarding winding, in lower ball-and-socket 1, smear appropriate advanced lubrication fat, club body (axostylus axostyle 8, steel ball 5) is packed into, identification duplicate numbers mark, installs ball-and-socket 4, by its outer stopper and lower ball-and-socket 1 inner stopper feel relieved, spacing mode, screw upper and lower ball-and-socket internal and external threads connection fastening, form a complete sphere sliding pair.
The upper end oral area of upper ball-and-socket 4 is equipped with M shape oral area reverse buckling type seal closure 9, forms dustproof, lubrication system; The hinge last G that the step surface of upper ball-and-socket 4 is designed with screw hole and screws for special pliers type spanner.Lower ball-and-socket 1 is designed with installs positioning spigot F and positioning screw hole, upper and lower ball-and-socket screw fastening after, and be fastened on base 10 by high-strength screw 3 and elastic washer 2 through screw hole.When work, club body (axostylus axostyle 8, steel ball 5) is connected on power source by connecting sleeve 6, locking nut 7, according to the Different Exercise Mode of exporting on power source (oscillating motion, banking motion, rotatablely move), can within the scope of several angle, realize the motion of different modes.
Because the gap of ball socket bearing is to be detected and controlled by facing-up, micron table, the contact precision higher (being greater than more than 80%) of slip sphere, circular error and surface roughness are fully guaranteed, therefore, at micrometer spindle under gap state, can keep good flexibility of revolution, overcome easily drawback and the defect of stuck, flexibility extreme difference of the large gap of original structure very flexible, little gap.
The utility model is due to the change of structural type, boundary dimension and steel ball increase, also there is certain change in the sphere slip surface of the inner ball surface of upper and lower ball-and-socket and spheroid, it is the corresponding increase of ball-and-socket surface of contact, and be asymmetric contact, especially descend ball-and-socket 1 surface of contact to be greater than ball-and-socket 4 surface of contact, its effect is the ability that enhancing ball socket bearing mainly bears axial tension and impulsive load.
The precision of ball socket bearing is mainly reflected in contact precision---circular error and the surface roughness of steel ball 5 and upper and lower ball-and-socket inner ball surface.In course of working, adopt corrosion-resistant, the material of resistance to wearing, by perfect precise machining process route, use high precision numerical control equipment processing and grinding and tight detection means, the contact precision on ball-and-socket inner ball surface and steel ball 5 surfaces is fully guaranteed.
The precision of ball socket bearing is also embodied in the machining accuracy that axostylus axostyle is connected with steel ball---coaxiality error and surface roughness.For meeting be not only the hit requirement of load but also Tensile load of ball socket bearing, club body is taked split design, be that axostylus axostyle takes split type, inside and outside step surface centering, internal and external threads to be connected design with steel ball, and in steel ball top and the heart portion of higher hardness, clamp reconditioning plane by the disposable location of highi degree of accuracy frock, with special processing method processing step hole and tapped hole, the machining accuracy of club body is also fully guaranteed.In addition, because the steel ball bottom of this project organization is complete formula sphere, thereby avoided invar spherome surface corner angle, burr, and the scuffing producing on ball-and-socket surface causes ball socket bearing after shock and vibration, to produce the phenomenon of clamping stagnation.
The oral area reverse buckling type M shape seal closure 9 of ball socket bearing adopts chloroprene rubber material to make, and not only forms dustproof, lubrication system and anti-aging, high-and low-temperature resistance and anti-salt fog better performances.Again because of the feature of the back-off pattern of its oral area, both avoided and the cross-contact of flat side H, avoid again seamed edge and the damage and fracture of spanner to it of flat side H.Meanwhile, more firm after also making seal closure install, and be difficult for slippage.
Lower ball-and-socket 1 bottom adopts closed design, for slidingsurface plays certain lubrication.
Claims (6)
1. the accurate ball socket bearing of revolving type, it is characterized in that: steel ball (5) is connected to form club body with the screw thread spindle nose (A) of axostylus axostyle (8), axostylus axostyle (8) is connected with power source through connecting sleeve (6) through upper ball-and-socket (4), locking nut (7) is fastened on axostylus axostyle (8), steel ball (5) stands on lower ball-and-socket (1), upper ball-and-socket (4) is useful on its centering with junction, the middle part band of lower ball-and-socket (1), spacing seam (D), junction, edge band be useful on ball-and-socket (4) and lower ball-and-socket (1) screw fastening in, outside thread (E), screw (3), elastic washer (2) is by upper ball-and-socket (4), lower ball-and-socket (1) is fastened on base (10), the upper end oral area of upper ball-and-socket (4) is equipped with the oral area reverse buckling type seal closure (9) of making of chloroprene rubber material.
2. the accurate ball socket bearing of revolving type according to claim 1, is characterized in that: described upper ball-and-socket (4) is asymmetric with lower ball-and-socket (1) and contacts, and lower ball-and-socket (1) surface of contact is greater than ball-and-socket (4) surface of contact.
3. the accurate ball socket bearing of revolving type according to claim 1, is characterized in that: described lower ball-and-socket (1) bottom outside is provided with the positioning spigot (F) supporting with base (10).
4. the accurate ball socket bearing of revolving type according to claim 1, is characterized in that: described lower ball-and-socket (1) bottom is enclosed construction.
5. the accurate ball socket bearing of revolving type according to claim 1, is characterized in that: described upper ball-and-socket (4) band is useful on four hinge lasts (G) that pliers type spanner screws.
6. the accurate ball socket bearing of revolving type according to claim 1, it is characterized in that: a plane has been cut on the top of described steel ball (5), the central upper portion of steel ball (5) is with step hole, axostylus axostyle (8) is upper with the step coordinating with the step hole of steel ball (5), steel ball (5) is felt relieved by step surface (C) with axostylus axostyle (8), steel ball (5) bottom is complete formula spheric structure, and axostylus axostyle (8) is upper with the conical surface (B) and flat side (H).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337415.3U CN203926368U (en) | 2014-06-24 | 2014-06-24 | The accurate ball socket bearing of revolving type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420337415.3U CN203926368U (en) | 2014-06-24 | 2014-06-24 | The accurate ball socket bearing of revolving type |
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| CN203926368U true CN203926368U (en) | 2014-11-05 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328600A (en) * | 2015-11-28 | 2016-02-17 | 沈阳飞机工业（集团）有限公司 | Follow-up positioning and locking mechanism for ball head |
| CN107687474A (en) * | 2017-08-08 | 2018-02-13 | 襄阳振本传动设备有限公司 | Accurate ball socket bearing constituent element with double-layer seal |
| CN108730262A (en) * | 2018-07-18 | 2018-11-02 | 徐州徐工液压件有限公司 | A kind of easily changeable self-adapting type flexural pivot fixed structure |
| CN109386657A (en) * | 2017-08-03 | 2019-02-26 | 中车唐山机车车辆有限公司 | A kind of pipe clamp of fixed cable |
| CN110081076A (en) * | 2019-05-09 | 2019-08-02 | 福建龙溪轴承(集团)股份有限公司 | A kind of intelligent lubricating long-life oscillating bearing flexural pivot |
| CN113048388A (en) * | 2021-04-28 | 2021-06-29 | 中车西安车辆有限公司 | Large-volume low-temperature tank car and vertical supporting structure and spherical hinge unit of inner tank body and outer tank body of large-volume low-temperature tank car |
| RU213044U1 (en) * | 2022-06-28 | 2022-08-22 | Общество С Ограниченной Ответственностью "Научно-Производственное Объединение "Ростар" | HINGE JOINT |
-
2014
- 2014-06-24 CN CN201420337415.3U patent/CN203926368U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328600A (en) * | 2015-11-28 | 2016-02-17 | 沈阳飞机工业（集团）有限公司 | Follow-up positioning and locking mechanism for ball head |
| CN105328600B (en) * | 2015-11-28 | 2017-04-26 | 沈阳飞机工业（集团）有限公司 | Follow-up positioning and locking mechanism for ball head |
| CN109386657A (en) * | 2017-08-03 | 2019-02-26 | 中车唐山机车车辆有限公司 | A kind of pipe clamp of fixed cable |
| CN107687474A (en) * | 2017-08-08 | 2018-02-13 | 襄阳振本传动设备有限公司 | Accurate ball socket bearing constituent element with double-layer seal |
| CN108730262A (en) * | 2018-07-18 | 2018-11-02 | 徐州徐工液压件有限公司 | A kind of easily changeable self-adapting type flexural pivot fixed structure |
| CN110081076A (en) * | 2019-05-09 | 2019-08-02 | 福建龙溪轴承(集团)股份有限公司 | A kind of intelligent lubricating long-life oscillating bearing flexural pivot |
| CN113048388A (en) * | 2021-04-28 | 2021-06-29 | 中车西安车辆有限公司 | Large-volume low-temperature tank car and vertical supporting structure and spherical hinge unit of inner tank body and outer tank body of large-volume low-temperature tank car |
| RU213044U1 (en) * | 2022-06-28 | 2022-08-22 | Общество С Ограниченной Ответственностью "Научно-Производственное Объединение "Ростар" | HINGE JOINT |
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