CN106884879A - Shaft seal in the middle of a kind of two-part - Google Patents
Shaft seal in the middle of a kind of two-part Download PDFInfo
- Publication number
- CN106884879A CN106884879A CN201710114724.2A CN201710114724A CN106884879A CN 106884879 A CN106884879 A CN 106884879A CN 201710114724 A CN201710114724 A CN 201710114724A CN 106884879 A CN106884879 A CN 106884879A
- Authority
- CN
- China
- Prior art keywords
- hole
- bearing
- vehicle chassis
- universal joint
- seal assembly
- 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.)
- Granted
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention discloses shaft seal in the middle of a kind of two-part, the jackshaft includes the multistage axis body (31,32) connected by least one universal joint (41,42,43), also including the seal closure (2) on the bearing seal assembly (1) being positioned close on the axis body (31) of vehicle chassis and the axis body (32) for being arranged far from the vehicle chassis.The present invention is separated by by bearing seal assembly with seal closure, and bearing seal assembly is positioned close on the axis body of vehicle chassis, so as to while original sealing effectiveness to jackshaft is kept, reduce the pressure that bearing seal assembly is caused to the universal joint in the middle of jackshaft, it is to avoid the vibration or swing of middle universal joint.
Description
Technical field
The present invention relates to vehicle correlative technology field, shaft seal in the middle of particularly a kind of two-part.
Background technology
As shown in figure 1, in order to avoid the pollutant of vehicle, such as：Water, dust, silt etc., into passenger's nacelle, therefore need
Seal closure 2' is set on jackshaft, to ensure sealing.And simultaneously, in order to be supported to jackshaft, it is necessary to set axle
Assembly 1' is held, bearing assembly 1' provides radial load for jackshaft 3', and absorbs the deformation of jackshaft 3'.
Be integrated into bearing assembly 1' in seal closure 2' by prior art, so that for bearing assembly 1' provides sealing, to keep away
The pollutant for exempting from vehicle enters bearing assembly 1', reduces to the pollution inside bearing assembly 1'.
However, when jackshaft 3' be two-piece design when, be for example provided with three universal joints (upper cardan, middle universal joint,
Lower cardan) when, because seal closure 2' can be arranged between upper cardan and middle universal joint, and it is closer to upper cardan.Cause
This, if bearing assembly is integrated into seal closure, need by bearing assembly be also disposed at upper cardan and middle universal joint it
Between, and near upper cardan.In the case, the position of support force can be near upper cardan away from middle universal joint, due to axle
Hold assembly 1' shorter with the arm of force of upper cardan, therefore bearing assembly 1' can be caused to be subject to larger radial load, it is universal in causing
There is vibration or swing in section.
The content of the invention
Based on this, it is necessary to which the bearing assembly for prior art causes the universal joint in the middle of jackshaft vibration to occur or puts
A kind of dynamic technical problem, there is provided shaft seal in the middle of two-part.
The present invention provides shaft seal in the middle of a kind of two-part, and the jackshaft includes being connected by least one universal joint
The multistage axis body for connecing, also including the bearing seal assembly that is positioned close on the axis body of vehicle chassis and is arranged on remote
Seal closure on the axis body of the vehicle chassis.
Further, upper cardan, middle universal joint and lower cardan are disposed with the jackshaft, it is described universal
Section and the distance of vehicle chassis more than the middle universal joint and vehicle chassis distance, the middle universal joint and vehicle chassis away from
With a distance from more than the lower cardan and vehicle chassis, the bearing seal assembly is arranged on the connection middle universal joint and institute
State on the axis body of lower cardan.
Further, the distance of the bearing seal assembly and the middle universal joint less than the bearing seal assembly with
The distance of the lower cardan.
Further, the bearing seal assembly is connected with the vehicle chassis.
Further, the bearing seal assembly is connected with the subframe of the vehicle chassis.
Further, the bearing seal assembly includes：Including metallic support, plastic casing, ball and needle roller axle
Hold, shell described in the support support, the shell is provided with outer casing through hole, the ball is placed in the outer casing through hole
Interior, the ball is provided with the ball through hole coaxial with the outer casing through hole, and the needle bearing is placed in the rubber
In ball through hole, and the axis body passes through the needle bearing.
Further, the bearing seal assembly also includes an at least lid, and the lid is provided with and the shell
The coaxial lid through hole of through hole, the end of the lid through hole is connected with the end of the outer casing through hole by contiguous block, and institute
State and accommodating cavity is reserved between the end of lid through hole and the end of the outer casing through hole, sealing ring, institute are set in the accommodating cavity
The cross section for stating sealing ring is letter k shapes.
Further, the contiguous block is snubber block.
Further, the shell includes the case member of two mutual buckles.
Further, the inner surface of outer cover is provided with the convex tendon of at least one and the ball interference fit.
Further, the end of the outer casing through hole is provided with least one sealing lip.
The present invention is separated by by bearing seal assembly with seal closure, and bearing seal assembly is positioned close into vehicle bottom
On the axis body of disk, so as to while original sealing effectiveness to jackshaft is kept, reduce bearing seal assembly in jackshaft
Between the pressure that causes of universal joint, it is to avoid there is vibration or swing in middle universal joint.
Brief description of the drawings
Fig. 1 is the bearing assembly and the integrated structural representation of seal closure of prior art；
Fig. 2 is the structural representation of shaft seal in the middle of a kind of two-part of the invention；
Fig. 3 is a kind of structural representation of bearing seal assembly of the invention；
Fig. 4 is the structural representation that a kind of bearing seal assembly of the invention coordinates with rotating shaft；
Fig. 5 is the mplifying structure schematic diagram that a kind of bearing seal assembly of the invention coordinates with rotating shaft.
The reference table of comparisons：
1'- bearing assemblies；2'- seal closures；3'- jackshafts；
1- bearing seal assemblies；11- metallic supports；12- plastic casings；
121- case members；122- convex tendons；13- balls；
131- sealing lips；14- needle bearings；15- lids；
16- contiguous blocks；17- accommodating cavities；18- sealing rings；
2- seal closures；31- axis bodies；32- axis bodies；
41- upper cardans；Universal joint in 42-；43- lower cardans.
Specific embodiment
Further illustrate specific embodiment of the invention below in conjunction with the accompanying drawings.Wherein identical parts identical
Reference is represented.It should be noted that the word "front", "rear", "left", "right", the "up" and "down" that are used in description below
The direction in accompanying drawing is referred to, word " interior " and " outward " are referred respectively to towards or away from the direction of particular elements geometric center.
As shown in Fig. 2~Fig. 5, a kind of shaft seal in the middle of two-part, the jackshaft is included by 10,000
To the multistage axis body 31,32 of the connection of section 41,42,43, the also bearing including being positioned close on the axis body 31 of vehicle chassis
Seal assembly 1 and the seal closure 2 being arranged far from the axis body 32 of the vehicle chassis.
During installation, bearing seal assembly 1 is arranged on axis body 31, seal closure 2 is arranged on axis body 32, so as to by axle
Hold seal assembly to be separated with seal closure so that bearing seal assembly easily can be positioned close to the axis body of vehicle chassis
On.Therefore, while original sealing effectiveness to jackshaft is kept, bearing seal assembly is reduced to universal in the middle of jackshaft
The pressure that section is caused, it is to avoid middle universal joint occurs vibration or swings.
Wherein in one embodiment, upper cardan 41, middle universal joint 42 and lower ten thousand are disposed with the jackshaft
To section 43, the upper cardan 41 is more than the distance of the middle universal joint 42 and vehicle chassis with the distance of vehicle chassis, described
Middle universal joint 42 is more than the distance of the lower cardan 43 and vehicle chassis, the bearing seal assembly with the distance of vehicle chassis
1 is arranged on the axis body 31 of the connection middle universal joint 42 and the lower cardan 43.
The present embodiment connects institute for there is three intermediate shaft structures of universal joint by bearing seal assembly 1 being arranged on
State on the axis body 31 of universal joint 42 and the lower cardan 43, therefore can well avoid the vibration or swing of middle universal joint.
Wherein in one embodiment, the bearing seal assembly 1 is less than the axle with the distance of the middle universal joint 42
Hold the distance of seal assembly 1 and the lower cardan 43.
In the present embodiment, bearing seal assembly 1 further reduces bearing seal assembly to jackshaft near middle universal joint 42
The pressure that middle universal joint is caused.
Wherein in one embodiment, the bearing seal assembly 1 is connected with the vehicle chassis.
With the vehicle chassis be connected bearing seal assembly 1 by the present embodiment, with fixing bearing seal assembly 1, so that solid
Determine jackshaft.
Wherein in one embodiment, the bearing seal assembly 1 is connected with the subframe of the vehicle chassis.
Wherein in one embodiment, the bearing seal assembly 1 includes：Including metallic support 11, plastic casing 12, rubber
Glueballs 13 and needle bearing 14, shell 12 described in the support of the support 11, the shell 12 is provided with outer casing through hole, described
Ball 13 is placed in the outer casing through hole, and the ball 13 is provided with the ball coaxial with the outer casing through hole and leads to
Hole, the needle bearing 14 is placed in the ball through hole, and the axis body 31 passes through the needle bearing 14.
Plastic casing 12 is preferably duroplasts and is made.During assembling, the axis body 31 of jackshaft is passed through into needle bearing 14, passed through
Needle bearing 14 carries out support to axis body.Simultaneously as the coefficient of friction between plastic casing 12 and metallic support 11 is remote small
Coefficient of friction between rubber and metallic support, therefore, the needle bearing 14 of ball of the invention 13 and inside can be very well
Ground rotation in metallic support 11 so that bearing assembly running is more smoothly.
Wherein in one embodiment, the bearing seal assembly 1 also includes an at least lid 15, is set on the lid 15
There is the lid through hole coaxial with the outer casing through hole, the end of the lid through hole is with the end of the outer casing through hole by being connected
Block 16 is connected, and accommodating cavity 17, the accommodating cavity are reserved between the end of the lid through hole and the end of the outer casing through hole
Sealing ring 18 is set in 17, and the cross section of the sealing ring 18 is letter k shapes.
Specifically, shell draw-in groove can be set in the end of outer casing through hole, lid card is set in the end of lid through hole
Groove, shell draw-in groove and the lid draw-in groove described in the difference clamping of contiguous block 16, realizes the connection of lid 15 and shell 12.Connection
When, accommodating cavity 17 is reserved, and sealing ring 18 is set in accommodating cavity 17, sealing ring 18 is k shape rings such that it is able to effectively with
The axis body 3 of countershaft is brought into close contact, and improves sealing.
The present embodiment, so as to avoid vehicle pollutant from entering needle bearing, is realized good close by setting sealing ring 18
Envelope protection.
Wherein in one embodiment, the contiguous block 16 is snubber block.
Specifically, contiguous block 16 is flexible rubber contiguous block, to realize good damping effect so that sealing ring is preferably
Fitted with axis body.
Wherein in one embodiment, the shell 12 includes the case member 121 of two mutual buckles.
During assembling, first ball 13 and needle bearing 14 are finished with axis body assembling, then by two case members 121
Clamping respectively.
The present embodiment by using two mutual buckles case member 121, it is convenient for assembly.
Wherein in one embodiment, the inner surface of the shell 12 is provided with least one with the interference fit of the ball 13
Convex tendon 122.
The present embodiment so as to strengthen be fitted with ball 13, is further enhanced in the inner surface setting convex tendon 122 of shell 12
Sealing.
Preferably, sealing lip 131 can also be set in the end of ball 13, to be sealed.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Shield scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of shaft seal in the middle of two-part, the jackshaft includes being connected by least one universal joint (41,42,43)
Multistage axis body (31,32), it is characterised in that also the bearing including being positioned close on the axis body (31) of vehicle chassis is close
Envelope assembly (1) and the seal closure (2) being arranged far from the axis body (32) of the vehicle chassis.
2. shaft seal in the middle of two-part according to claim 1, it is characterised in that set successively on the jackshaft
It is equipped with the distance of upper cardan (41), middle universal joint (42) and lower cardan (43), the upper cardan (41) and vehicle chassis
More than the middle universal joint (42) and the distance of vehicle chassis, the middle universal joint (42) is more than described with the distance of vehicle chassis
The distance of lower cardan (43) and vehicle chassis, the bearing seal assembly (1) be arranged on the connection middle universal joint (42) and
On the axis body (31) of the lower cardan (43).
3. shaft seal in the middle of two-part according to claim 2, it is characterised in that the bearing seal assembly
(1) distance with the middle universal joint (42) is less than the distance of the bearing seal assembly (1) and the lower cardan (43).
4. shaft seal in the middle of two-part according to claim 1, it is characterised in that the bearing seal assembly
(1) it is connected with the vehicle chassis.
5. shaft seal in the middle of two-part according to claim 4, it is characterised in that the bearing seal assembly
(1) subframe with the vehicle chassis is connected.
6. shaft seal in the middle of two-part according to claim 1, it is characterised in that the bearing seal assembly
(1) include：Including metallic support (11), plastic casing (12), ball (13) and needle bearing (14), the support
(11) shell described in support (12), the shell (12) is provided with outer casing through hole, and the ball (13) is placed in the shell
In through hole, the ball (13) is provided with the ball through hole coaxial with the outer casing through hole, and the needle bearing (14) is held
It is placed in the ball through hole, and the axis body (31) is through the needle bearing (14).
7. shaft seal in the middle of two-part according to claim 6, it is characterised in that the bearing seal assembly
(1) an at least lid (15) is also included, the lid (15) is provided with the lid through hole coaxial with the outer casing through hole, the lid
The end of body through hole is connected with the end of the outer casing through hole by contiguous block (16), and the end of the lid through hole with it is described
Reserved between the end of outer casing through hole and sealing ring (18), the sealing ring are set in accommodating cavity (17), the accommodating cavity (17)
(18) cross section is letter k shapes.
8. shaft seal in the middle of two-part according to claim 7, it is characterised in that the contiguous block (16) is to subtract
Shake block.
9. shaft seal in the middle of two-part according to claim 6, it is characterised in that the shell (12) is including two
The case member (121) of mutual buckle.
10. shaft seal in the middle of two-part according to claim 6, it is characterised in that the interior table of the shell (12)
Face is provided with the convex tendon (122) of at least one and the ball (13) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114724.2A CN106884879B (en) | 2017-02-28 | 2017-02-28 | A kind of two-part centre shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114724.2A CN106884879B (en) | 2017-02-28 | 2017-02-28 | A kind of two-part centre shaft seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884879A true CN106884879A (en) | 2017-06-23 |
| CN106884879B CN106884879B (en) | 2019-04-16 |
Family
ID=59179552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710114724.2A Active CN106884879B (en) | 2017-02-28 | 2017-02-28 | A kind of two-part centre shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884879B (en) |
-
2017
- 2017-02-28 CN CN201710114724.2A patent/CN106884879B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106884879B (en) | 2019-04-16 |
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