CN202790175U - Oil free type automobile transmission shaft - Google Patents
Oil free type automobile transmission shaft Download PDFInfo
- Publication number
- CN202790175U CN202790175U CN 201220316964 CN201220316964U CN202790175U CN 202790175 U CN202790175 U CN 202790175U CN 201220316964 CN201220316964 CN 201220316964 CN 201220316964 U CN201220316964 U CN 201220316964U CN 202790175 U CN202790175 U CN 202790175U
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- ring
- piston
- axle sleeve
- axle
- cross
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Abstract
The utility model discloses an oil free type automobile transmission shaft which comprise a shaft pipe, a welding fork, a flange fork and a cross-shaped shaft and is characterized in that roller pins are arranged on the inner wall of a shaft sleeve along the circumference direction. A double-lip type elastic retaining ring and a wearing ring are sequentially arranged on one end, adjacent to the center of the cross-shaped shaft, of the shaft sleeve. The wearing ring is arranged between the double-lip type elastic retaining ring and the roller pins. An oil storage device is arranged on the cross-shaped shaft. A restoring spring, a piston and a seal ring are arranged in the oil storage device. The piston is arranged in a casing body of the oil storage device. The seal ring is arranged on the peripheral lateral side of the piston and the restoring spring is arranged above the piston, namely between the piston and the top of the casing body of the oil storage device. An oil storage cavity is arranged below the piston and a through hole is arranged in the cross-shaped shaft and communicated with an inner cavity of the shaft sleeve and the oil storage cavity. The oil free type automobile transmission shaft is simple in manufacture, low in cost, safe, reliable and obvious in use effect.
Description
Technical field
The utility model relates to a kind of auto parts machinery field, specifically a kind of oil-filling type truck drive shaft of exempting from.
Background technique
At present, the phenomenon of hair fastener, abnormal sound and premature wear often appears in the transmission shaft on the automobile in the middle of using both at home and abroad, and working life is not long yet.Entangling its reason, mainly is owing to the universal joint inner cavity in the middle of the transmission shaft lacks lubricating grease cross axle and needle roller dry grinding to be caused.
Universal joint is the vitals in the transmission shaft system, is comprised of cross axle, needle roller and axle sleeve.At the weld yoke of transmission shaft and the connection part between the flange yoke.Because the cross axle in the universal joint can self also can be done alternately rotation radially following when transmission shaft does axial-rotation, therefore can satisfy transmission shaft can have under the situation of flex point, still the power of motor can be transmitted to needed position.
In order to provide lubricated to universal joint, transmission shaft will be with axle sleeve when assembling in the contact position of needle roller and cross axle coat enough lubricating grease.In order to prevent that lubricating grease from overflowing, in the edge of axle sleeve the felt back-up ring is installed.Yet the sealing effect of felt back-up ring is unsatisfactory, and it can not be fully isolated with inner chamber and the atmosphere of axle sleeve, and like this, in the middle of using, air and dust just enter bore sleeve easily, can cause lubricating grease partly to run off and do thick, down to losing lubricated effect.Although the center portion of universal joint is provided with oil hole, because narrow and small, the operating difficulties in its position is also usually ignored by the driver.Therefore, lubricated just being difficult between cross axle and the needle roller is guaranteed long-term effectively, also just caused transmission shaft the phenomenon of hair fastener, abnormal sound and premature wear often to occur in the middle of using.Also can have a greatly reduced quality working life.
The patent No. is 201020229455.8, name is called in the Chinese patent of " with the universal joint of dustproof oil seal mechanism " and discloses a kind of gimbal structure, comprise the cross axis body, four ends of cross axis body are provided with axle journal, cover has gear mechanism in the axle journal, gear mechanism comprises the outer ring, roller pin gasket, needle roller, the needle roller back-up ring, oil sealing, spring and dust-proof cover, cover has the outer ring on the axle journal, be provided with needle roller between outer ring and axle journal, be provided with roller pin gasket between the outer side wall of axle journal and the madial wall of outer ring, the bottom cover of needle roller has the needle roller back-up ring, contacted with the needle roller back-up ring is oil sealing, and oil sealing contacts fixing with the outer ring, and cover has spring in the oil sealing, the bottom of axle journal is provided with dust-proof cover, and dust-proof cover is socketed in the axle journal.Defective and the deficiency of technique scheme are: in transmission shaft work constantly, because repeatedly High Rotation Speed and friction between the spindle nose and needle roller of cross axle, between needle roller and the sleeve lining, can make bore sleeve produce high temperature, and the volume of lubricating grease can Yin Wendu raises and expands in the axle sleeve chamber, like this, a part of lubricating grease is spilt into outside the chamber of axle sleeve.And when transmission shaft quit work, this part lubricating grease that overflows but can not got back in the chamber of axle sleeve automatically.Like this, in the course of time, will cause cross axle and needle roller dry grinding because lubricating grease lacks, transmission shaft is broken down.
The patent No. is 200820166603.9, name is called in the Chinese patent of " universal joint assembly " and discloses a kind of universal joint assembly, comprise cross axle, four ends of described cross axle are four spindle noses, cover has axle sleeve on the described spindle nose, is provided with oil sealing between described axle sleeve and the cross axle, and described oil sealing comprises oil sealing main body, epipharynx, outer lip, the end of described epipharynx is arranged on the open outer side of axle sleeve and is close to the axle sleeve bottom end, and the outer circumferential face of axle sleeve is close in the end of outer lip.Defective and the deficiency of technique scheme are: in transmission shaft work constantly, because repeatedly High Rotation Speed and friction between the spindle nose and needle roller of cross axle, between needle roller and the sleeve lining, can make bore sleeve produce high temperature, and the volume of lubricating grease can Yin Wendu raises and expands in the axle sleeve chamber, like this, a part of lubricating grease is spilt into outside the chamber of axle sleeve.And when transmission shaft quit work, this part lubricating grease that overflows but can not got back in the chamber of axle sleeve automatically.Like this, in the course of time, will cause cross axle and needle roller dry grinding because lubricating grease lacks, transmission shaft is broken down.
The model utility content
Technical problem to be solved in the utility model is to overcome deficiency of the prior art and provide a kind of manufacturing simple, and with low cost, safe and reliable, using effect is significantly exempted from the oil-filling type truck drive shaft.
The technical scheme in the invention for solving the above technical problem is: this exempts from the oil-filling type truck drive shaft, comprise central siphon, weld yoke, flange york and cross axle, described central siphon and weld yoke are welded and fixed, the both sides of flange york and weld yoke are provided with earhole, the axle sleeve of universal joint is installed in the earhole of flange york and weld yoke and is fixed by snap ring, axle sleeve is sleeved on four spindle noses of cross axle, it is characterized in that: be distributed with needle roller on the described sleeve lining circumferencial direction, end near the spider center on the axle sleeve is disposed with lips formula circlip and wearing ring, wearing ring is between lips formula circlip and needle roller, be provided with Fuel Tanking Unit on the cross axle, return spring is equipped with in Fuel Tanking Unit inside, piston, seal ring, piston is arranged in the housing of Fuel Tanking Unit, circumference side at piston is equipped with seal ring, the piston top, be to be provided with return spring between itself and the Fuel Tanking Unit case top, it is shoe cream room below piston, cross axle inside is provided with through hole, and this through hole is communicated with inner chamber and the shoe cream room of axle sleeve.The inside of Fuel Tanking Unit is equipped with piston, seal ring and return spring, and piston can and move up and down under the effect of return spring along with the big or small of axle sleeve cavity pressure, in order to adjust the space in the shoe cream room.In transmission shaft work constantly, because repeatedly High Rotation Speed and friction between the spindle nose and needle roller of cross axle, between needle roller and the sleeve lining, can make bore sleeve produce high temperature, and the volume of lubricating grease can Yin Wendu raises and expands in the axle sleeve chamber, like this, a part of lubricating grease is entered in the shoe cream room of Fuel Tanking Unit via the through hole of cross axle inside.And when transmission shaft quit work, under the effect of return spring, this part lubricating grease of backflow will be got back in the chamber of axle sleeve automatically.Like this, just effectively prevented the loss of lubricating grease.The utility model changes original felt back-up ring into lips formula circlip, between lips formula circlip and needle roller, wearing ring is installed, so just can bore sleeve and atmosphere is fully isolated, lubricating grease can not outflowed, make lubricated can being guaranteed long-term effectively between cross axle and the needle roller, thereby also just eliminated hair fastener, abnormal sound and premature wear often appear in transmission shaft in the middle of using phenomenon.
Lips formula circlip described in the utility model is ring-type, and ring edge ring-type is provided with a circle V-arrangement and convexes to form epipharynx in it, and interior ring diameter contacts with the external diameter coupling of cross axle; Its outer shroud edge ring-type is provided with a circle V-arrangement and convexes to form outer lip, and the diameter of outer shroud contacts with the internal diameter of axle sleeve coupling, and epipharynx and outer lip are symmetrical.The outer lip of lips formula circlip can stop the inner chamber that dust in the atmosphere and moisture content enter axle sleeve by himself v-shaped structure and tension force, epipharynx can stop that by himself v-shaped structure and tension force the lubricating grease of bore sleeve outwards runs off, and so just can be for a long time provides lubricated for the universal joint of transmission shaft.
Wearing ring described in the utility model adopts teflon to make, and certain thickness is arranged.The One-sided Widths of this wearing ring is slightly larger than the diameter of needle roller, can support the space between cross axle and the sleeve lining, makes needle roller that certain gap be arranged therebetween, very easily forms oil film and protects oneself, thereby be unlikely to too early wearing and tearing.Also just prolonged the working life of transmission shaft.
The utility model compared with prior art has the following advantages: the utility model changes original felt back-up ring into oil sealing, so just can bore sleeve and atmosphere is fully isolated, lubricating grease can not outflowed, make lubricated can being guaranteed long-term effectively between cross axle and the needle roller, thereby also just eliminated hair fastener, abnormal sound and premature wear often appear in transmission shaft in the middle of using phenomenon.Between oil sealing and needle roller, wearing ring is installed in addition, can prevents the too early wearing and tearing between cross axle and the needle roller, greatly increased the working life of transmission shaft.Meanwhile, the utility model does not change the dimensional structure of original product, is very easy to form batch production.And make simply, with low cost, safe and reliable, great promotional value is arranged.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1, the utility model comprises central siphon 1, weld yoke 2, weld yoke earhole 2.1, through hole 3, cross axle 4, flange york 5, flange york earhole 5.1, Fuel Tanking Unit 6, return spring 6.1, piston 6.2, seal ring 6.3 shoe cream rooms 6.4, axle sleeve 7, snap ring 8, needle roller 9, wearing ring 10, lips formula circlip 11.Cross axle 4, flange york 5, oil sealing screw 6, axle sleeve 7, snap ring 8, needle roller 9, wearing ring 10 and lips formula circlip 11, circlip epipharynx 11.1, circlip outer lip 11.2 have formed universal joint.
Circumferencial direction at axle sleeve 7 inwalls has been covered with needle roller 9, and the end near cross axle 4 centers on the axle sleeve 7 is disposed with lips formula circlip 11 and wearing ring 10, and wearing ring 10 is between lips formula circlip 11 and needle roller 9.Described lips formula circlip 11 is ring-type, and ring edge ring-type is provided with a circle V-arrangement and convexes to form epipharynx 11.1 in it, and interior ring diameter contacts with the external diameter coupling of cross axle 4; Its outer shroud edge ring-type is provided with a circle V-arrangement and convexes to form outer lip 11.2, and the diameter of outer shroud contacts epipharynx 11.1 and outer lip 11.2 symmetries with the internal diameter coupling of axle sleeve 7.
Described wearing ring is made by teflon, and certain thickness is arranged.The One-sided Widths of this wearing ring is slightly larger than the diameter of needle roller, can support the space between cross axle and the sleeve lining, makes needle roller that certain gap be arranged therebetween, very easily forms oil film and protects oneself, thereby be unlikely to too early wearing and tearing.Also just prolonged the working life of transmission shaft.
Cross axle 4 inside are provided with through hole 3, this through hole 3 is communicated with the inner chamber of axle sleeve 7 and the shoe cream room 6.4 of Fuel Tanking Unit 6, piston 6.2 in the Fuel Tanking Unit 6 can and move up and down under the effect of return spring 6.1 according to the big or small of axle sleeve 7 cavity pressures, in order to adjust the space in the shoe cream room 6.4.When transmission shaft is worked, because repeatedly High Rotation Speed and friction between the spindle nose and needle roller 9 of cross axle 4, between needle roller 9 and axle sleeve 7 inwalls, can make axle sleeve 7 inner chambers produce high temperature, and the volume of lubricating grease can Yin Wendu raises and expands in axle sleeve 7 chambeies, like this, a part of lubricating grease is entered in the shoe cream room 6.4 of Fuel Tanking Unit 6 via the through hole 3 of cross axle inside.And when transmission shaft quit work, this part lubricating grease of backflow will be got back in the chamber of axle sleeve 7 automatically.Like this, just effectively prevented the loss of lubricating grease.
Although the utility model with embodiment openly as above; but it is not to limit protection domain of the present utility model; any technician who is familiar with this technology, the change of doing within not breaking away from design of the present utility model and scope and retouching all should belong to protection domain of the present utility model.
Claims (3)
1. exempt from the oil-filling type truck drive shaft for one kind, comprise central siphon, weld yoke, flange york and cross axle, described central siphon and weld yoke are welded and fixed, the both sides of flange york and weld yoke are provided with earhole, the axle sleeve of universal joint is installed in the earhole of flange york and weld yoke and is fixed by snap ring, axle sleeve is sleeved on four spindle noses of cross axle, it is characterized in that: be distributed with needle roller on the described sleeve lining circumferencial direction, end near the spider center on the axle sleeve is disposed with lips formula circlip and wearing ring, wearing ring is between lips formula circlip and needle roller, be provided with Fuel Tanking Unit on the cross axle, return spring is equipped with in Fuel Tanking Unit inside, piston, seal ring, piston is arranged in the housing of Fuel Tanking Unit, in the circumference side of piston seal ring is installed, the piston top, be to be provided with return spring between itself and the Fuel Tanking Unit case top, be shoe cream room below piston, cross axle inside is provided with through hole, and this through hole is communicated with inner chamber and the shoe cream room of axle sleeve.
2. the oil-filling type truck drive shaft of exempting from according to claim 1, it is characterized in that: described lips formula circlip is ring-type, and ring edge ring-type is provided with a circle V-arrangement and convexes to form epipharynx in it, and interior ring diameter mates with the external diameter of cross axle and contacts; Its outer shroud edge ring-type is provided with a circle V-arrangement and convexes to form outer lip, and the diameter of outer shroud contacts with the internal diameter of axle sleeve coupling, and epipharynx and outer lip are symmetrical.
3. the oil-filling type truck drive shaft of exempting from according to claim 1, it is characterized in that: described wearing ring is made by teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316964 CN202790175U (en) | 2012-07-03 | 2012-07-03 | Oil free type automobile transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316964 CN202790175U (en) | 2012-07-03 | 2012-07-03 | Oil free type automobile transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790175U true CN202790175U (en) | 2013-03-13 |
Family
ID=47817441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220316964 Withdrawn - After Issue CN202790175U (en) | 2012-07-03 | 2012-07-03 | Oil free type automobile transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734342A (en) * | 2012-07-03 | 2012-10-17 | 浙江中凌精密铸锻有限公司 | Oiling-free automobile transmission shaft |
-
2012
- 2012-07-03 CN CN 201220316964 patent/CN202790175U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734342A (en) * | 2012-07-03 | 2012-10-17 | 浙江中凌精密铸锻有限公司 | Oiling-free automobile transmission shaft |
| CN102734342B (en) * | 2012-07-03 | 2014-12-17 | 浙江中凌精密铸锻有限公司 | Oiling-free automobile transmission shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20141217 |
|
| RGAV | Abandon patent right to avoid regrant |