CN112727904A - Transmission shaft intermediate structure - Google Patents
Transmission shaft intermediate structure Download PDFInfo
- Publication number
- CN112727904A CN112727904A CN202110022833.8A CN202110022833A CN112727904A CN 112727904 A CN112727904 A CN 112727904A CN 202110022833 A CN202110022833 A CN 202110022833A CN 112727904 A CN112727904 A CN 112727904A
- Authority
- CN
- China
- Prior art keywords
- ring
- support
- shaft
- spline
- sealing
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004677 Nylon Substances 0.000 claims abstract description 6
- 229920001778 nylon Polymers 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 18
- 238000010438 heat treatment Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000003739 neck Anatomy 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/023—Shafts; Axles made of several parts, e.g. by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/18—Arrangement of bearings
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
- F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention discloses a transmission shaft intermediate structure, which relates to the field of automobile transmission shafts and comprises an intermediate connection fork, an intermediate spline shaft, a support and rings, wherein the intermediate connection fork and the intermediate spline shaft are connected in a spline fit manner, the shaft necks of the intermediate connection fork and the intermediate spline shaft are respectively sleeved with one ring, a support bearing is arranged between the two rings, the support is arranged on the support bearing, rubber sealing lips are arranged at the upper end and the lower end of the support, which are close to the rings, and each rubber sealing lip is in contact sealing with the corresponding ring. The invention has the beneficial effects that: and the heat treatment deformation of the spline is prevented from being transmitted to the sealing contact part. In addition, the ring is made of non-steel materials (such as nylon and the like), the contact friction sound of rubber and the ring is smaller, the sealing interference range can be designed to be increased, and the muddy water prevention performance is enhanced.
Description
Technical Field
The invention relates to the field of automobile transmission shafts, in particular to a transmission shaft intermediate structure.
Background
The middle connecting part of the existing multi-section transmission shaft consists of a middle spline shaft, a bracket and a middle connecting fork. The rubber sealing lip of the bracket is contacted with the middle spline shaft and the outer circular iron journal of the middle connecting fork to form sealing, so that muddy water is prevented from entering the inside of the bracket.
In order to meet the requirements of rotation and torque, the middle connection fork and the middle spline shaft are in spline fit, the outer spline of the middle spline shaft needs to be subjected to heat treatment, the heat treatment deformation is large, after press fitting, the deformation error is transmitted to the outer circular surface of the middle connection fork, the coaxiality difference between the lip of the support and the outer circular surface of the middle connection fork is caused, the interference magnitude of one side is larger than a designed value, friction noise occurs during rotation, the interference magnitude of one side is smaller than the designed value, and muddy water enters the inside.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides the transmission shaft intermediate structure, overcomes the defects of the conventional transmission shaft intermediate structure, and meets the functional requirements.
The purpose of the invention is achieved by the following technical scheme: the middle structure of the transmission shaft comprises a middle connection fork, a middle spline shaft, a support and rings, wherein the middle connection fork is connected with the middle spline shaft in a spline fit mode, the shaft necks of the middle connection fork and the middle spline shaft are respectively sleeved with one ring, a support bearing is arranged between the two rings, the support is arranged on the support bearing, rubber sealing lips are arranged at the positions, close to the rings, of the upper end and the lower end of the support, and each rubber sealing lip is in contact sealing with the corresponding ring.
As a further technical scheme, each circular ring is matched with an assembly excircle of the support bearing so as to ensure the coaxiality.
As a further technical scheme, the circular ring is made of a nylon material.
The invention has the beneficial effects that: and the heat treatment deformation of the spline is prevented from being transmitted to the sealing contact part. In addition, the ring is made of non-steel materials (such as nylon and the like), the contact friction sound of rubber and the ring is smaller, the sealing interference range can be designed to be increased, and the muddy water prevention performance is enhanced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the middle connecting fork 1, the middle spline shaft 2, the bracket 3, the circular ring 4, the bracket bearing 5 and the rubber sealing lip 6.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example (b): as shown in fig. 1, the transmission shaft intermediate structure includes an intermediate connection fork 1, an intermediate spline shaft 2, a bracket 3 and rings 4, wherein the intermediate connection fork 1 and the intermediate spline shaft 2 are connected in a spline fit manner, the journals of the intermediate connection fork 1 and the intermediate spline shaft 2 are respectively sleeved with one ring 4, a bracket bearing 5 is installed between the two rings 4, the bracket 3 is installed on the bracket bearing 5, rubber sealing lips 6 are arranged at the upper end and the lower end of the bracket 3 near the rings 4, and each rubber sealing lip 6 is in contact sealing with the corresponding ring 4. Preferably, each ring 4 cooperates with the fitting outer circle of the support bearing 5 to ensure coaxiality. The circular ring 4 is made of nylon material (or other non-steel materials).
The middle structure of the transmission shaft is additionally provided with two circular rings. And the heat treatment deformation of the spline is prevented from being transmitted to the sealing contact part. In addition, the ring is made of non-steel materials (such as nylon and the like), the contact friction sound of rubber and the ring is smaller, the sealing interference range can be designed to be increased, and the muddy water prevention performance is enhanced. In conclusion, the invention not only solves the defects of the intermediate structure of the existing transmission shaft, but also strengthens the functional requirements, and has good application prospect.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (3)
1. A transmission shaft intermediate structure is characterized in that: including intermediate junction fork (1), middle integral key shaft (2), support (3) and ring (4), intermediate junction fork (1) and middle integral key shaft (2) are connected through spline fit, all suit one ring (4) on the axle journal of intermediate junction fork (1) and middle integral key shaft (2), install support bearing (5) between two ring (4), install on support bearing (5) support (3), the upper and lower both ends of this support (3) are close to ring (4) and locate to have rubber seal lip (6), and each rubber seal lip (6) is sealed with ring (4) contact that corresponds.
2. The propeller shaft intermediate structure according to claim 1, wherein: each ring (4) is matched with the assembly excircle of the bracket bearing (5) to ensure the coaxiality.
3. The propeller shaft intermediate structure according to claim 1 or 2, wherein: the circular ring (4) is made of nylon materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022833.8A CN112727904A (en) | 2021-01-08 | 2021-01-08 | Transmission shaft intermediate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022833.8A CN112727904A (en) | 2021-01-08 | 2021-01-08 | Transmission shaft intermediate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112727904A true CN112727904A (en) | 2021-04-30 |
Family
ID=75591308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110022833.8A Pending CN112727904A (en) | 2021-01-08 | 2021-01-08 | Transmission shaft intermediate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727904A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004197913A (en) * | 2002-12-20 | 2004-07-15 | Nsk Ltd | Sealing device, rolling bearing incorporating the same, and hub unit |
| CN103883627A (en) * | 2014-03-21 | 2014-06-25 | 万向钱潮传动轴有限公司 | Middle supporting frame assembly |
| JP2015206441A (en) * | 2014-04-23 | 2015-11-19 | 日本精工株式会社 | sealing device |
| CN106812811A (en) * | 2015-11-27 | 2017-06-09 | 长城汽车股份有限公司 | Transmission shaft structure and power transmission shaft |
| CN106969057A (en) * | 2017-03-30 | 2017-07-21 | 万向钱潮传动轴有限公司 | A kind of few part lightweight power transmission shaft |
| CN209146326U (en) * | 2018-10-29 | 2019-07-23 | 合肥万向钱潮汽车零部件有限公司 | A kind of new structure intermediate support lip mouth oil seal |
| CN110107601A (en) * | 2019-05-16 | 2019-08-09 | 万向钱潮传动轴有限公司 | A kind of light-duty intermediate connecting fork of integrated bearing inner race |
| CN211501633U (en) * | 2019-11-07 | 2020-09-15 | 万向钱潮股份有限公司 | Intermediate support sealing structure of automobile transmission shaft |
| CN112124069A (en) * | 2020-09-22 | 2020-12-25 | 东风汽车底盘系统有限公司 | Intermediate support aluminum alloy transmission shaft for medium and heavy commercial vehicle |
| CN214404321U (en) * | 2021-01-08 | 2021-10-15 | 万向钱潮传动轴有限公司 | Transmission shaft intermediate structure |
-
2021
- 2021-01-08 CN CN202110022833.8A patent/CN112727904A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004197913A (en) * | 2002-12-20 | 2004-07-15 | Nsk Ltd | Sealing device, rolling bearing incorporating the same, and hub unit |
| CN103883627A (en) * | 2014-03-21 | 2014-06-25 | 万向钱潮传动轴有限公司 | Middle supporting frame assembly |
| JP2015206441A (en) * | 2014-04-23 | 2015-11-19 | 日本精工株式会社 | sealing device |
| CN106812811A (en) * | 2015-11-27 | 2017-06-09 | 长城汽车股份有限公司 | Transmission shaft structure and power transmission shaft |
| CN106969057A (en) * | 2017-03-30 | 2017-07-21 | 万向钱潮传动轴有限公司 | A kind of few part lightweight power transmission shaft |
| CN209146326U (en) * | 2018-10-29 | 2019-07-23 | 合肥万向钱潮汽车零部件有限公司 | A kind of new structure intermediate support lip mouth oil seal |
| CN110107601A (en) * | 2019-05-16 | 2019-08-09 | 万向钱潮传动轴有限公司 | A kind of light-duty intermediate connecting fork of integrated bearing inner race |
| CN211501633U (en) * | 2019-11-07 | 2020-09-15 | 万向钱潮股份有限公司 | Intermediate support sealing structure of automobile transmission shaft |
| CN112124069A (en) * | 2020-09-22 | 2020-12-25 | 东风汽车底盘系统有限公司 | Intermediate support aluminum alloy transmission shaft for medium and heavy commercial vehicle |
| CN214404321U (en) * | 2021-01-08 | 2021-10-15 | 万向钱潮传动轴有限公司 | Transmission shaft intermediate structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |