CN201771964U - Needle bearing - Google Patents
Needle bearing Download PDFInfo
- Publication number
- CN201771964U CN201771964U CN2010202588602U CN201020258860U CN201771964U CN 201771964 U CN201771964 U CN 201771964U CN 2010202588602 U CN2010202588602 U CN 2010202588602U CN 201020258860 U CN201020258860 U CN 201020258860U CN 201771964 U CN201771964 U CN 201771964U
- Authority
- CN
- China
- Prior art keywords
- needle bearing
- metallic insert
- retainer
- roller
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a needle bearing, which is arranged between a shifting gear and a rotary shaft of a manual gearbox, and comprises a retainer, a plurality of rollers and at least one nonmetal insert. The rollers and the nonmetal inserts are arranged on the retainer; each of the rollers is in clearance fit with the rotary shaft and the shifting gear; the nonmetal inserts are in interference fit with the rotary shaft and the shifting gear, so that the nonmetal inserts are capable of sliding between the rotary shaft and the shifting gear. The needle bearing can effectively reduce noise.
Description
[technical field]
The utility model relates to needle bearing, and in particular, the utility model relates to a kind of retainer structure that is applied to the needle bearing on the manual transmission.
[background technique]
Along with expanding economy, vehicle more and more is dissolved in the life of ordinary family.Existing family car is generally manual transmission automobile and automatic transmission case automobile.Wherein, the low noise of vehicle and low vibration have become a very important index of vehicle riding comfort, and people also more and more pay close attention to the price of vehicle simultaneously, the cost of necessary strict control product development when this makes the exploitation automobile product.In this case, must take into account a plurality of factors such as cost and noise to the research and development design of manual transmission.
Needle bearing is a kind of common rolling bearing, and it is used to bear bigger radial load and axial load in a small amount generally speaking.Needle bearing has generally included outer ring, retainer, roller and inner ring.Wherein, a plurality of rollers evenly are located on the retainer and can roll around retainer.Outside at retainer is provided with the outer ring, and its outer ring generally is fixed on the bearing spider.Inner ring correspondingly is arranged on retainer inside, and its inner ring generally is connected on the rotational parts, as rotatingshaft.Under some certain applications, needle bearing also can not comprise inner ring and/or outer ring, in this case, is still by part in the rotation realization roller of roller and the relative movement between the part outside the roller.
Traditional needle bearing that is used for the manual transmission shifting gear has generally included retainer and a plurality of roller, and wherein a plurality of rollers are arranged on the retainer equably and can rotate around retainer.Needle bearing is set between bore and the rotatingshaft, thereby makes gear and rotatingshaft can have relative movement.This conventional design mainly is the life requirement of speed changer with considering, and concern is less relatively for noise problem, is eliminating then not contribution basically on the whole manual transmission system noise problem.
Just so, propose a kind of novel needle bearing that is applied on the manual transmission, it can weaken noise effectively, really is the technical problem of solution that those skilled in the art need badly.
[model utility content]
Based on these technical problems that exist in the background technique, a purpose of the present utility model is intended to, propose a kind of needle bearing, it can be eliminated or significantly reduce owing to guarantee bearing working needs have to the radial fit gap of having a mind to reserve and the noise of the manual transmission of correspondingly decaying.
Above-mentioned purpose of the present utility model and other purposes are to realize by the following technical solutions:
The utility model provides a kind of needle bearing, and this needle bearing is arranged between the change gear and rotatingshaft of manual transmission, and described needle bearing comprises the retainer of an annular, a plurality of roller and at least one non-metallic insert, wherein
Described a plurality of roller and at least one non-metallic insert are arranged on the described retainer,
In described a plurality of roller each and described rotatingshaft and described change gear are Spielpassung, roll in the surface that makes described a plurality of roller can paste described rotatingshaft or described change gear in described retainer,
Described at least one non-metallic insert and described rotatingshaft and described change gear are interference fit, make described at least one non-metallic insert can produce slip between described rotatingshaft and described change gear.
Needle bearing provided by the utility model, preferably, the anchor ring of described retainer is provided with a plurality of grooves, and described a plurality of rollers and at least one non-metallic insert are arranged in described a plurality of groove.
Needle bearing provided by the utility model, preferably, described a plurality of grooves are evenly distributed on the anchor ring of described retainer.
Needle bearing provided by the utility model, preferably, each in described a plurality of rollers and described groove maintain the gap.
Needle bearing provided by the utility model preferably, also is provided with the rotation-preventing mechanism that is shaped as projection on described at least one non-metallic insert, be used to prevent that described at least one non-metallic insert from rotating in described groove.
Needle bearing provided by the utility model, preferably, described at least one non-metallic insert and described groove are interference fit.
Needle bearing provided by the utility model, preferably, described at least one non-metallic insert adopts rubber material to make.
In the manual transmission needle bearing with nonmetal (as rubber) inserts that the utility model provides, newly-increased non-metallic insert replaces 2 or a plurality of conventional roller in the traditional bearing.Non-metallic insert and retainer mating area size and conventional roller are basic identical, guarantee to keep rational gap or suitably interference between the two, can not drop in the course of the work.Meanwhile, non-metallic insert is in outstanding two projections of symmetrical in the radial direction two positions.This projection guarantees can not roll between inserts and the retainer, meanwhile guarantee between the gear hole of inserts and pairing mutually and the rotatingshaft external diameter to comparatively suitable interference fit, guaranteed rational rotational resistance, thereby realized elimination of being scheduled to or the design object that alleviates the non-linear engagement phenomenon of gear, made damping effect to be implemented simultaneously.
Understand easily, needle bearing of the present utility model has been obtained significant technique effect than prior art.Matching relationship by rational Match non-metallic insert and correlated parts, use the non-linear engagement phenomenon of the transmission gear of the utility model needle bearing significantly to reduce, and the noises caused by hitting of gears amplitude that speed changer sends when non-linear the engagement occurring also will significantly reduce, thereby workinprocess cost does not occur improving the product noise performance greatly under the big increase situation, improves customer satisfaction.
Further, main employing sliding friction between non-metallic insert and axle and gear, guaranteed only under relatively large torsional vibration initial conditions, just can separate between driving shaft and the gear, avoided occurring nonlinear transmission, thereby improved the non-linear transmission noise that gear backlash is brought; In addition, because nonmetal (as rubber) high internal resistance characteristic own, this patent also will help total noise and level of vibration in the attenuation factor, reduce the appreciable noise level of client.
[description of drawings]
Below, in conjunction with the accompanying drawings preferred implementation of the present utility model is described in further detail, wherein:
Fig. 1 is the structural representation of the needle bearing among embodiment of the utility model;
Fig. 2 is the working principle schematic representation of needle bearing of the present utility model.
[embodiment]
Understand easily, according to the technical solution of the utility model, do not changing under the connotation of the present utility model, one of ordinary skill in the art can propose a plurality of mode of structure of the present utility model.Therefore following embodiment and accompanying drawing only are to the specifying of the technical solution of the utility model, and should not be considered as of the present utility model all or be considered as qualification or restriction to technical solutions of the utility model.
Please refer to accompanying drawing 1, needle bearing of the present utility model includes retainer 2, a plurality of roller 4 of an annular, and at least one non-metallic insert 1.Wherein, a plurality of grooves (not shown) that evenly distributed on the retainer 2 are used to settle described a plurality of roller 4 and at least one non-metallic insert 1, that is to say, groove quantity should equal the quantity sum of roller 4 and non-metallic insert 1.Preferably, groove evenly distributes on the anchor ring of retainer 2, and the cross section of groove may be cylinder or oval or other shapes, as long as adapt with the shape of roller 4 and non-metallic insert 1.Further, retainer 2 can be an overall structure as shown in fig. 1, also can be hatch frame.When retainer 2 adopts hatch frame, can not need to be provided with groove near the opening.
Described retainer 2 adopts nylon or structural carbon steel, and for example DC01 and roller 4 adopt glass hard steel to make, and for example adopt the Bearing Steel manufacturing through Quenching Treatment, in order to guarantee its wearability.Described at least one non-metallic insert preferably adopts rubber to make, and certainly, also can adopt other the weak relatively nonmetallic material of hardness to make.
As depicted in figs. 1 and 2, needle bearing of the present utility model is set between the change gear 5 and rotatingshaft 3 of manual transmission, can exist between its axis 3 and the gear 5 to relatively rotate or keep static relatively.Described a plurality of roller 4 and non-metallic insert 1 are arranged in the groove.The shape of inserts 1 is similar substantially to roller 4.Roller 4 be designed to and axle 3 and gear 5 between keep suitable little gap, also keep suitable gap simultaneously and between the groove of retainer 2.When existence between axle 3 and the gear 5 relatively rotated, roller 4 will paste axle 3 in retainer 2 and roll in gear 4 surfaces, thus the rolling friction of generation and axle 3 and gear 4.On the contrary, be suitable interference fit between the groove of non-metallic insert 1 and retainer 2.Footpath at axle 3 makes progress, and inserts 1 is designed to have appropriate interference fit with axle 3 and gear 5, thereby when existence relatively rotated between axle 3 and the gear 5, inserts 1 will move with retainer 2, thereby and produces sliding friction between axle 3 and the gear 5.According to the size of required maximum friction moment, the interference fit degree between inserts 1 and axle 3 and the gear 5 can be selected according to actual conditions.And preferably, axle 3 axially on, the groove length that inserts 1 is designed to length overall and retainer 2 keeps appropriate interference fit, similarly, inserts 1 and spools 3 and gear 5 between interference fit length then be provided with according to the size of required friction torque.When the bigger friction torque of needs, long length of thread engagement can be set correspondingly.
Further preferably, on described at least one non-metallic insert 1, also be provided with rotation-preventing mechanism (not shown).This rotation-preventing mechanism is generally projection.This rotation-preventing mechanism is used to guarantee that non-metallic insert 1 can not rotate in the course of the work in groove.
When system was in running order, if use traditional needle bearing, the rotating speed in relative rotation between gear 5 and the rotatingshaft 3 was in the state of continuous variation.Generally, gear 5 constantly is accelerated or is decelerated, and the rotating speed of axle 3 is relatively stable, and this occurs periodically clashing into and making a noise on two flank of tooth of engagement with regard to having caused gear 5 and the gear that matches.In needle bearing of the present utility model, because the existence of at least one non-metallic insert 1, between axle 3 and gear 5, can produce a kind of additional friction torque, make the motion of gear 5 be subjected to extra constraint and damping, thereby make the fluctuation (being vibrational energy) of rotating speed obtain decay from axle 3; Meanwhile, additional friction moment also makes the gear of gear 5 and pairing mutually at any time only by a flank engagement, the generation space of having eliminated impact energy, thus in a certain section operation interval, eliminated the noise source of gear impact noise at least.
In addition, because non-metallic insert 1 shape of the present utility model is similar substantially to roller 4, big variation will can not take place in the lubricating condition of gear 5 and axle 3, therefore need not to be lubricated again design usually.And the quantity of non-metallic insert 1 is very not many, generally is preferably 2-4, therefore can't bring appreciable impact to bearing load carrying capacity.
The manual transmission needle bearing of band non-metallic insert of the present utility model has improved the immunity of manual transmission assembly to noises caused by hitting of gears greatly.When coupling is suitable, dependence can be reduced, ideally even can cancel the pre-vibration insulating system of clutch, thereby the cost of whole system can be reduced for the pre-vibration insulating system of clutch, and realize better car load noise and level of vibration, improve customer satisfaction.
Claims (7)
1. needle bearing, it is arranged between the change gear and rotatingshaft of manual transmission, it is characterized in that, and described needle bearing comprises the retainer of an annular, a plurality of roller and at least one non-metallic insert, wherein
Described a plurality of roller and at least one non-metallic insert are arranged on the described retainer,
In described a plurality of roller each and described rotatingshaft and described change gear are Spielpassung, roll in the surface that makes described a plurality of roller can paste described rotatingshaft or described change gear in described retainer,
Described at least one non-metallic insert and described rotatingshaft and described change gear are interference fit, make described at least one non-metallic insert can produce slip between described rotatingshaft and described change gear.
2. needle bearing as claimed in claim 1 is characterized in that the anchor ring of described retainer is provided with a plurality of grooves, and described a plurality of rollers and at least one non-metallic insert are arranged in described a plurality of groove.
3. needle bearing as claimed in claim 2 is characterized in that, described a plurality of grooves are evenly distributed on the anchor ring of described retainer.
4. needle bearing as claimed in claim 2 is characterized in that, each in described a plurality of rollers and described groove maintain the gap.
5. needle bearing as claimed in claim 2 is characterized in that, also is provided with the rotation-preventing mechanism that is shaped as projection on described at least one non-metallic insert, is used to prevent that described at least one non-metallic insert from rotating in described groove.
6. needle bearing as claimed in claim 2 is characterized in that, described at least one non-metallic insert and described groove are interference fit.
7. needle bearing as claimed in claim 1 is characterized in that, described at least one non-metallic insert adopts rubber material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202588602U CN201771964U (en) | 2010-07-14 | 2010-07-14 | Needle bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202588602U CN201771964U (en) | 2010-07-14 | 2010-07-14 | Needle bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771964U true CN201771964U (en) | 2011-03-23 |
Family
ID=43751810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202588602U Expired - Fee Related CN201771964U (en) | 2010-07-14 | 2010-07-14 | Needle bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201771964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252276A (en) * | 2021-06-30 | 2021-08-13 | 西北工业大学 | Impact collision test system for needle bearing retainer |
-
2010
- 2010-07-14 CN CN2010202588602U patent/CN201771964U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252276A (en) * | 2021-06-30 | 2021-08-13 | 西北工业大学 | Impact collision test system for needle bearing retainer |
| CN113252276B (en) * | 2021-06-30 | 2021-10-08 | 西北工业大学 | Impact collision test system for needle bearing retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20190714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |