CN103912581A - Planar needle roller thrust bearing with gaskets embedded into plastic retainer - Google Patents
Planar needle roller thrust bearing with gaskets embedded into plastic retainer Download PDFInfo
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- CN103912581A CN103912581A CN201410120570.4A CN201410120570A CN103912581A CN 103912581 A CN103912581 A CN 103912581A CN 201410120570 A CN201410120570 A CN 201410120570A CN 103912581 A CN103912581 A CN 103912581A
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- needle roller
- plastic cage
- pad
- thrust bearing
- seam
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Abstract
The invention discloses a planar needle roller thrust bearing with gaskets embedded into a plastic retainer. The planar needle roller thrust bearing comprises a rolling body assembly and two gaskets, wherein the two gaskets are respectively embedded and fixed on two sides of the rolling body assembly; the rolling body assembly comprises the plastic retainer and needle rollers; a plurality of needle roller notches are formed in the plastic retainer and are arranged in the needle roller notches; a seam allowance ring groove is formed in each of two sides of the plastic retainer; each gasket is arranged in the corresponding seam allowance ring groove; a circle of seam allowances are formed in the groove wall, close to the circle center, of each seam allowance ring groove; a circle of inner chamfers are arranged on the inner circumference of each gasket; the inner chamfers are matched with the seam allowances. In the way, according to the planar needle roller thrust bearing with the gaskets embedded into the plastic retainer, the problems of missing installation of thrust gaskets and missing of needles are solved, and direct rubbing of the needle rollers and the retainer against the working surface is reduced, so that the service life of the bearing is prolonged.
Description
Technical field
The present invention relates to bearing machining manufacturing technology field, relate in particular to a kind of plane needle roller thrust bearing of pad embedding plastic cage formula.
Background technique
Thrust retainer assembly and the thrust washer of the large multi-band needle roller of existing plane needle roller thrust bearing disperse, there is the phenomenon of Thurst washer neglected loading and dropped stitch, thereby the potential safety hazard that causes bearing to bring at work, brings unnecessary loss to client and enterprise.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of plane needle roller thrust bearing of pad embedding plastic cage formula, has solved the phenomenon of Thurst washer neglected loading and dropped stitch.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of pad embeds the plane needle roller thrust bearing of plastic cage formula, comprise: rolling element assembly parts and two pads, two described pad chimeric described rolling element assembly parts both sides that are fixed on respectively;
Described rolling element assembly parts comprises: plastic cage and needle roller, described plastic cage is provided with several needle roller recesses, described needle roller is arranged in described needle roller recess, described plastic cage both sides are respectively equipped with a seam circular groove, described pad is arranged in described seam circular groove, and described seam circular groove is provided with a circle seam near the cell wall of circle centre position;
Described pad inner ring circumference is provided with chamfering in a circle, and described interior chamfering matches with described seam.
In a preferred embodiment of the present invention, described plastic cage is circular, described needle roller recess array distribution in the form of a ring centered by the center of circle of described plastic cage.
In a preferred embodiment of the present invention, the material of described pad is SMM415 low-alloy structural steel.
In a preferred embodiment of the present invention, described pad packs into after described seam circular groove, and it is 6 ± 0.03mm that the width dimensions of described bearing requires.
In a preferred embodiment of the present invention, by heat treatment, making described gasket surface hardness is HV700-800, and centre hardness is HV250-400.
The invention has the beneficial effects as follows: a kind of pad of the present invention embeds the plane needle roller thrust bearing of plastic cage formula, solve the phenomenon of Thurst washer neglected loading and dropped stitch, reduce the friction that needle roller directly contacts with working surface with retainer, thereby improved the working life of bearing.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of pad of the present invention embeds the plane needle roller thrust bearing of plastic cage formula.
Fig. 2 is the structural representation that a kind of pad of the present invention embeds the plane needle roller thrust bearing plastic cage of plastic cage formula.
Fig. 3 is the structural representation that a kind of pad of the present invention embeds the plane needle roller thrust bearing pad of plastic cage formula.
In accompanying drawing, the mark of each parts is as follows: 1, rolling element assembly parts; 2, pad; 3, plastic cage; 4, needle roller; 5, needle roller recess; 6, seam circular groove; 7, seam; 8, interior chamfering.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Refer to Fig. 1 to Fig. 3, the embodiment of the present invention comprises: a kind of pad embeds the plane needle roller thrust bearing of plastic cage formula, comprising: rolling element assembly parts 1 and two pads 2, the groundwork mechanism that described rolling element assembly parts 1 is this bearing.
Described rolling element assembly parts 1 comprises: plastic cage 3 and needle roller 4, described plastic cage 3 is circular, described plastic cage 3 is for making rolling element keep separating, bearing keeps rolling element to be circumferentially uniformly distributed along bearing in operation process, and guides rolling element to roll on correct rolling track.
Described plastic cage 3 is provided with several needle roller recesses 5, described needle roller recess 5 array distribution in the form of a ring centered by the center of circle of described plastic cage 3, described needle roller 4 is arranged in described needle roller recess 5, described plastic cage 3 both sides are respectively equipped with a seam circular groove 6, described seam circular groove 6 is fixing for described pad 2, and described pad 2 is arranged in described seam circular groove 6.
Described seam circular groove 6 is provided with a circle seam 7 near the cell wall of circle centre position, described pad 2 inner ring circumference are provided with chamfering 8 in a circle, described interior chamfering 8 matches with described seam 7, makes two described pads 2 chimeric described rolling element assembly parts 1 both sides that are fixed on respectively.
The material of described pad 2 is SMM415 low-alloy structural steel, traditional method adopts 65Mn spring steel, its hardness is complete in hard to heart portion take surface, be difficult to guarantee the flatness after described pad 2 heat treatments, SMM415 low-alloy structural steel, by heat treatment, making described pad 2 surface hardnesses is HV700-800, centre hardness is HV250-400, and owing to being alloy material, wear resistance increases greatly again.
Described pad 2 packs into after described seam circular groove 6, and it is 6 ± 0.03mm that the width dimensions of described bearing requires.
Inhomogeneous due to what be heated after heat-treatment quenching, flatness can be subject to certain impact, so we carry out tempering after adopting fixture that described pad 2 reinforcings are stepped up, tempering makes tissue stable, stress is eliminated, flatness is also under control, guarantee again the high-flatness of described pad 2 by pressing from both sides flat technique, because the soft after heat treatment resilient plastic of this material heart of SMM415 portion is good, press from both sides and in flat technique, there will not be crackle or fracture at described pad, and can also reach the flatness requirement after folder is put down, i.e. bearing width size requirement 6 ± 0.03mm.
Below the working principle of a kind of roller roller bearing of the present invention is described in detail.
Needle roller 4 is arranged in the needle roller recess 5 on the interior plastic cage 3 of rolling element assembly parts 1, coordinate with interior chamfering by seam 7, two pads 2 are arranged on respectively in two seam circular grooves 6, thereby make the chimeric both sides that are fixed on rolling element assembly parts 1 of pad 2, thereby make rolling element assembly parts 1 and two pads 2 form an entirety, when work, rolling element assembly parts 1 still can, in 2 revolutions flexibly of two pads, solve the phenomenon of pad 2 neglected loadings and dropped stitch.
Compared with prior art, a kind of pad of the present invention embeds the plane needle roller thrust bearing of plastic cage formula, this bearing is by connecting in aggregates by needle roller, plastic cage and pad, make easier for installation, solve the phenomenon of Thurst washer neglected loading and dropped stitch, and reduced the friction that needle roller directly contacts with working surface with retainer, thereby the working life of improving bearing.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. pad embeds a plane needle roller thrust bearing for plastic cage formula, it is characterized in that, comprising:
Rolling element assembly parts and two pads, two described pad chimeric described rolling element assembly parts both sides that are fixed on respectively;
Described rolling element assembly parts comprises: plastic cage and needle roller, described plastic cage is provided with several needle roller recesses, described needle roller is arranged in described needle roller recess, described plastic cage both sides are respectively equipped with a seam circular groove, described pad is arranged in described seam circular groove, and described seam circular groove is provided with a circle seam near the cell wall of circle centre position;
Described pad inner ring circumference is provided with chamfering in a circle, and described interior chamfering matches with described seam.
2. a kind of pad according to claim 1 embeds the plane needle roller thrust bearing of plastic cage formula, it is characterized in that: described plastic cage is for circular, described needle roller recess array distribution in the form of a ring centered by the center of circle of described plastic cage.
3. a kind of pad according to claim 1 embeds the plane needle roller thrust bearing of plastic cage formula, it is characterized in that: the material of described pad is SMM415 low-alloy structural steel.
4. a kind of pad according to claim 1 embeds the plane needle roller thrust bearing of plastic cage formula, it is characterized in that: described pad packs into after described seam circular groove, and it is 6 ± 0.03mm that the width dimensions of described bearing requires.
5. a kind of pad according to claim 1 embeds the plane needle roller thrust bearing of plastic cage formula, it is characterized in that: by heat treatment, making described gasket surface hardness is HV700-800, and centre hardness is HV250-400.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120570.4A CN103912581A (en) | 2014-03-28 | 2014-03-28 | Planar needle roller thrust bearing with gaskets embedded into plastic retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120570.4A CN103912581A (en) | 2014-03-28 | 2014-03-28 | Planar needle roller thrust bearing with gaskets embedded into plastic retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103912581A true CN103912581A (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120570.4A Pending CN103912581A (en) | 2014-03-28 | 2014-03-28 | Planar needle roller thrust bearing with gaskets embedded into plastic retainer |
Country Status (1)
| Country | Link |
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| CN (1) | CN103912581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963941A (en) * | 2015-06-30 | 2015-10-07 | 常州光洋轴承股份有限公司 | Thrust roll-needle bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1365787A (en) * | 1972-03-16 | 1974-09-04 | Schwarzbich J | Cylindrical roller thrust bearing |
| CN102661325A (en) * | 2012-05-21 | 2012-09-12 | 苏州市东吴滚针轴承有限公司 | Thrust needle roller bearing with inner clamping slot retainers |
| CN102661316A (en) * | 2012-05-21 | 2012-09-12 | 苏州市东吴滚针轴承有限公司 | Plastic retainer thrust needle roller bearing |
| JP2012193858A (en) * | 2012-07-10 | 2012-10-11 | Nsk Ltd | Cage for thrust needle bearing and thrust needle bearing |
| CN202520772U (en) * | 2011-12-23 | 2012-11-07 | 上海振华轴承总厂有限公司 | Bearing for automotive steering system |
-
2014
- 2014-03-28 CN CN201410120570.4A patent/CN103912581A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1365787A (en) * | 1972-03-16 | 1974-09-04 | Schwarzbich J | Cylindrical roller thrust bearing |
| CN202520772U (en) * | 2011-12-23 | 2012-11-07 | 上海振华轴承总厂有限公司 | Bearing for automotive steering system |
| CN102661325A (en) * | 2012-05-21 | 2012-09-12 | 苏州市东吴滚针轴承有限公司 | Thrust needle roller bearing with inner clamping slot retainers |
| CN102661316A (en) * | 2012-05-21 | 2012-09-12 | 苏州市东吴滚针轴承有限公司 | Plastic retainer thrust needle roller bearing |
| JP2012193858A (en) * | 2012-07-10 | 2012-10-11 | Nsk Ltd | Cage for thrust needle bearing and thrust needle bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963941A (en) * | 2015-06-30 | 2015-10-07 | 常州光洋轴承股份有限公司 | Thrust roll-needle bearing |
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Application publication date: 20140709 |