CN206988319U - A kind of universal-joint fork of power transmission shaft - Google Patents
A kind of universal-joint fork of power transmission shaft Download PDFInfo
- Publication number
- CN206988319U CN206988319U CN201720950778.8U CN201720950778U CN206988319U CN 206988319 U CN206988319 U CN 206988319U CN 201720950778 U CN201720950778 U CN 201720950778U CN 206988319 U CN206988319 U CN 206988319U
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- China
- Prior art keywords
- groove
- lubrication
- needle bearing
- fork ear
- ring
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Abstract
A kind of universal-joint fork of power transmission shaft,The top both ends Symmetrical vertical of jaw is provided with left fork ear and right fork ear,The mounting hole of the interference fit installation needle bearing that matches with needle bearing and be used for is respectively equipped with left fork ear and right fork ear,One is offered on the periphery of needle bearing peripherally disposed has groove,The through hole that several are offered in groove and is connected inside needle bearing,When needle bearing is arranged in mounting hole,A groove in a ring is opened up on the hole wall of the mounting hole of left fork ear corresponding to groove and right fork ear,The section of groove is rectangle,A nonmetallic lubrication ring of high abrasion with groove match is inlayed in lubrication groove,A lubrication groove is opened up on the inner peripheral surface of the nonmetallic lubrication ring of high abrasion,The width of rebate of lubrication groove is more than the width of groove,Lubricating grease is filled with lubrication groove and groove,Solve the problems, such as to need to stay oil duct in the prior art or do not lubricate.
Description
Technical field
Truck drive shaft is the utility model is related to, particularly relates to a kind of universal-joint fork of power transmission shaft.
Background technology
The transmission parts that power transmission shaft is wanted as automobile primary, it is made up of universal joint, telescopic and central siphon, and universal-joint fork conduct
The critical piece of universal joint is widely used, and universal-joint fork is interference fitted with needle bearing uses when in use, routinely makes
Universal-joint fork does not have the effect of lubrication quill bearing outer ring, or needs are opened lubrication channel on axle and can be just lubricated, and do not have
There are the universal-joint fork and needle bearing hard friction of lubricating function, service life is low, changes frequently, and universal with lubrication channel
Section fork, be lubricated every time oil supplement it is extremely difficult, even if carry out make-up oil, because of the mistake of needle bearing and universal-joint fork
Cooperation of being full of can not be lubricated well, meanwhile, also reduce the intensity of axle.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of universal-joint fork of power transmission shaft, solves prior art
In the problem of needing to stay oil duct or do not lubricate.
To realize above-mentioned technical purpose, used technical scheme is：A kind of universal-joint fork of power transmission shaft, including connection
Axle and the jaw with connecting shaft integrally connected, the top both ends Symmetrical vertical of jaw are provided with left fork ear and right fork ear, left fork ear
With it is right fork ear on be respectively equipped with one match with needle bearing and be used for be interference fitted install needle bearing mounting hole, two
The line of the center line of mounting hole and the axis perpendicular of connecting shaft, a circumferentially side is offered on the periphery of needle bearing
To groove is provided with, several are offered in groove and the through hole that is connected inside needle bearing, peace is arranged in needle bearing
When filling in hole, a groove in a ring is opened up on the hole wall of the mounting hole of left fork ear corresponding to groove and right fork ear, groove
Section is rectangle, a nonmetallic lubrication ring of high abrasion with groove match is inlayed in lubrication groove, in the non-gold of high abrasion
Opens up a lubrication groove on the inner peripheral surface of category lubrication ring, the width of rebate of lubrication groove is more than the width of groove, lubrication groove with
Lubricating grease is filled with groove.
The section of lubrication groove described in the utility model is V-type.
The utility model beneficial effect is：By the way that the ear fork of the needle bearing that special shape constructs and special construction is mutually tied
Close, in the case that realization does not increase oil duct, the outer ring of needle bearing is lubricated, meanwhile, cross axle is being carried out to power transmission shaft
During lubrication, by adding lubricating oil in the inside retainer of needle bearing, it can when in use squeeze between outer ring and ear fork, carry out
Lubrication, realizes the raising to the universal joint life-span.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is use state diagram of the present utility model；
Fig. 3 is cross section structure diagram of the present utility model；
In figure：1st, connecting shaft, 2, jaw, 3, left fork ear, 4, right fork ear, 5, needle bearing, 6, groove, 7, groove, 8, high
Wear-resisting nonmetallic slip ring, 9, lubrication groove, 10, through hole.11st, snap ring.
Embodiment
As shown in figure 1, a kind of universal-joint fork of power transmission shaft, including connecting shaft 1 and the fork with the integrally connected of connecting shaft 1
First 2, the top both ends Symmetrical vertical of jaw 2 is provided with left fork ear 3 and right fork ear 4, and one is respectively equipped with left fork ear 3 and right fork ear 4
The individual mounting hole for matching with needle bearing 5 and needle bearing 5 being installed for being interference fitted, the company of the center line of two mounting holes
The axis perpendicular of line and connecting shaft 1, one is offered on the periphery of needle bearing 5 peripherally disposed has groove 6, ditch
The width of groove 6 is not easy excessive, prevents contact area of the outer ring when mounted with mounting hole from not enough dropping, is offered in groove 6
Several through holes 10 being connected with the inside of needle bearing 5, through hole 10 are connected with the space between retainer and outer ring, such as overhauled
When, directly toward instillation lubricating oil in needle bearing, lubricating oil can be by forming oil film outside through hole 10, and needle bearing is rolling
When, the oil film in through hole 10 is squeezed into groove 6 from through hole, is stored, prevents from volatilizing, meanwhile, also outer ring is lubricated,
When needle bearing 5 is arranged in mounting hole, one is opened up on the hole wall of the mounting hole of left fork ear 3 and right fork ear 4 corresponding to groove 6
The groove 7 of bar in a ring, the section of groove 7 is rectangle, and a high abrasion to match with groove 7 is inlayed in lubrication groove 9
Nonmetallic lubrication ring 8, the nonmetallic high temperature resistant of lubrication ring 8 of high abrasion and grind material, such as：PTFE Engineering Plastic, in height
A lubrication groove 9 is opened up on the inner peripheral surface of wear-resisting nonmetallic lubrication ring 8, the width of rebate of lubrication groove 9 is more than the width of groove 6
Degree, is filled with lubricating grease in lubrication groove 9 and groove 6, i.e. some and needle roller of the surface of the nonmetallic lubrication ring 8 of high abrasion
The outer ring contact of bearing 5, realizes half sliding friction, meanwhile, the nonmetallic lubrication ring 8 of high abrasion alleviates universal joint because of its material
Weight, meanwhile, the appearance of groove, groove, lubrication groove, while lubrication is played, further mitigate the weight of universal joint.
The nonmetallic lubrication ring 8 of high abrasion is different from the ear fork material of outer ring, and deflection is also different, the nonmetallic lubrication of high abrasion
Ring 8 is unlikely to deform, and the fluctuation of temperature that is in of the ear of metal fork, expands during overheat, the nonmetallic lubrication ring 8 of high abrasion is extruded,
Outer ring clamping of the nonmetallic lubrication ring 8 of high abrasion to needle bearing 5, the nonmetallic lubrication ring 8 of high abrasion will not also deform during supercooling,
It will not be cooled brittle, be contacted with metal, reduce the abrasion to needle bearing 5, the life-span upgrading of needle bearing 5.
Lubricating oil is each filled with when corresponding to installation first in lubrication groove 9 and groove 6, the outer ring of needle bearing 5 is moistened
Sliding, conversely, during lubrication, lubrication groove can carry out needle bearing by through hole 10, and the deposit lubricating grease as whole needle bearing 5 makes
With making lubricating oil in power transmission shaft can be used 4-6 months, greatly reduce the number for subtracting and repairing with safeguarding.The slot opening of lubrication groove 9
Degree is more than the width of groove 6, and two trough rims of lubrication groove 9 are stuck in as slide rail on the outer ring of needle bearing 5, and it is close to play guiding
The effect of envelope.
The section of described lubrication groove 9 is V-type, makes the lubricating oil state in stress extrusion when in use, saves lubrication
The use and preservation of oil, increase the time of lubrication.
Claims (2)
1. a kind of universal-joint fork of power transmission shaft, including connecting shaft（1）And and connecting shaft（1）The jaw of integrally connected（2）, fork
Head（2）Top both ends Symmetrical vertical be provided with left fork ear（3）With right fork ear（4）, left fork ear（3）With right fork ear（4）It is upper to set respectively
There are one and needle bearing（5）Match and be used to be interference fitted installation needle bearing（5）Mounting hole, in two mounting holes
The line and connecting shaft of heart line（1）Axis perpendicular, it is characterised in that：Needle bearing（5）Periphery on offer one
It is peripherally disposed to have groove（6）, in groove（6）Inside offer several and needle bearing（5）The through hole of inside connection
（10）, needle bearing（5）When in mounting hole, groove（6）Corresponding left fork ear（3）With right fork ear（4）Mounting hole
A groove in a ring is opened up on hole wall（7）, groove（7）Section be rectangle, lubrication groove（9）Inside inlay one and groove
（7）The nonmetallic lubrication ring of high abrasion to match（8）, the nonmetallic lubrication ring of high abrasion（8）Inner peripheral surface on open up Yi Tiaorun
Chute（9）, lubrication groove（9）Width of rebate be more than groove（6）Width, in lubrication groove（9）With groove（6）Inside filled with profit
Consistent lubricant.
A kind of 2. universal-joint fork of power transmission shaft as claimed in claim 1, it is characterised in that：Described lubrication groove（9）Cut
Face is V-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950778.8U CN206988319U (en) | 2017-08-01 | 2017-08-01 | A kind of universal-joint fork of power transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950778.8U CN206988319U (en) | 2017-08-01 | 2017-08-01 | A kind of universal-joint fork of power transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988319U true CN206988319U (en) | 2018-02-09 |
Family
ID=61418453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720950778.8U Active CN206988319U (en) | 2017-08-01 | 2017-08-01 | A kind of universal-joint fork of power transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988319U (en) |
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2017
- 2017-08-01 CN CN201720950778.8U patent/CN206988319U/en active Active
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| GR01 | Patent grant |