CN200975404Y - Step structural on drive axle head intermediate frequency quenching section - Google Patents
Step structural on drive axle head intermediate frequency quenching section Download PDFInfo
- Publication number
- CN200975404Y CN200975404Y CNU200620134967XU CN200620134967U CN200975404Y CN 200975404 Y CN200975404 Y CN 200975404Y CN U200620134967X U CNU200620134967X U CN U200620134967XU CN 200620134967 U CN200620134967 U CN 200620134967U CN 200975404 Y CN200975404 Y CN 200975404Y
- Authority
- CN
- China
- Prior art keywords
- intermediate frequency
- transmission shaft
- induction hardening
- frequency quenching
- frequency induction
- 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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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model relates to an upper step structure of shaft head intermediate frequency quenching zone of transmission shaft which can correct range of current shaft head intermediate frequency quenching zone of transmission shaft. Range of the shaft head intermediate frequency quenching zone of transmission shaft is stretched from lengthened intermediate frequency quenching zone to two thirds of length of oil sealed step. Superficial hardness of rear intermediate frequency transition zone is more than HRC52, and hard coat is more than 3mm thick. The utility model is beneficial to increase strength of components, prevent fracture of the components, prolongs service life of the whole transmission shaft, reduce replacement and lower cost.
Description
Technical field:
The utility model relates to a kind of transmission shaft spindle nose mid frequency induction hardening district that the scope in existing transmission shaft spindle nose mid frequency induction hardening district is made amendment structure of topping bar.
Background technique:
When do not top bar in transmission shaft spindle nose mid frequency induction hardening district, mid frequency induction hardening length only is the splined section of spindle nose and 2/3rds places of bearing length of bench, and oil sealing step and bearing step transition zone just are the places that stress is concentrated, the hardness of transition zone reduction on the contrary behind the intermediate frequency, the fracture of easily losing efficacy.Easy-rupturing when therefore do not top bar in transmission shaft spindle nose mid frequency induction hardening district, the fatigue strength of part is bad.
Summary of the invention:
The purpose of this utility model is to solve the easily broken quality problems of transmission shaft spindle nose and provides a kind of part after heat treatment process is adjusted, part strength is strengthened, be difficult for twisting off, prolong the working life of whole transmission shaft, saved the transmission shaft spindle nose mid frequency induction hardening district that changes the frequency and the cost structure of topping bar.
The purpose of this utility model is achieved in that 2/3rds places that the scope in transmission shaft spindle nose mid frequency induction hardening district goes up the oil sealing length of bench for the mid frequency induction hardening length extension of lengthening.
The surface hardness of transition zone is more than HRC52 behind the intermediate frequency, and hardened layer is more than the 3mm.
When the utility model intermediate frequency is not topped bar, mid frequency induction hardening length only is the splined section of spindle nose and 2/3rds places of bearing length of bench, and the transition zone of oil sealing step and bearing step just is the place that stress is concentrated, the hardness of transition zone reduction on the contrary behind the intermediate frequency, the fracture of easily losing efficacy.After the utility model was adjusted, the mid frequency induction hardening district had surpassed pedestal and has gone up another step again, has improved surface hardness, and part twisting strength, fatigue strength are strengthened, and had effectively avoided the Accident due to quality of fracture herein.Therefore the utlity model has and can strengthen part strength, make part be difficult for twisting off, prolong whole transmission shaft working life, change the advantage of the frequency and cost.
Description of drawings:
Fig. 1 is the do not top bar transmission shafts header structure schematic representation of structure of intermediate frequency.
Fig. 2 is the top bar transmission shafts header structure schematic representation of structure of intermediate frequency of the present utility model.
Embodiment:
As shown in Figure 1, on intermediate frequency was not topped bar the transmission shaft spindle nose of structure, the mid frequency induction hardening district surpassed maximum more than ten millimeters of spline, the intensity at dress bearing place only has half higher, second half easily ruptures after the transmission shaft entrucking herein because intensity is low, and 95 are the length range in mid frequency induction hardening district among the figure.
As shown in Figure 2, the scope in transmission shaft spindle nose mid frequency induction hardening of the present utility model district is extended 2/3rds places of going up oil sealing step 4 length for the mid frequency induction hardening length of lengthening.112 for the length range in mid frequency induction hardening district among the figure.
After the structure change of the present utility model, the surface hardness of transition zone 3 is more than HRC52 behind the intermediate frequency, and hardened layer is more than the 3mm.
Mid frequency induction hardening length lengthening, on arrived 2/3rds places of oil sealing step 4 length, strengthened the place of oil sealing step 4 with 3 handing-over of bearing step 2 transition zones.Surface hardness behind the intermediate frequency is more than HRC52, and hardened layer is between 3-6mm; And the surface hardness of transition zone is more than HRC52 behind the intermediate frequency, and hardened layer is more than the 3mm.No longer include the phenomenon of transmission shafts head rupture.
As shown in Figure 2, the mid frequency induction hardening district has surpassed pedestal and has gone up another step again, has improved surface hardness, and part twisting strength, fatigue strength are strengthened, and has effectively avoided the Accident due to quality of fracture herein.
Claims (2)
1, a kind of transmission shaft spindle nose mid frequency induction hardening district structure of topping bar, it is characterized in that: the scope in transmission shaft spindle nose mid frequency induction hardening district is extended 2/3rds places of going up the oil sealing length of bench for the mid frequency induction hardening length of lengthening.
2, the transmission shaft spindle nose mid frequency induction hardening according to claim 1 district structure of topping bar, it is characterized in that: the surface hardness of transition zone is more than HRC52 behind the intermediate frequency, and hardened layer is more than the 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620134967XU CN200975404Y (en) | 2006-12-11 | 2006-12-11 | Step structural on drive axle head intermediate frequency quenching section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620134967XU CN200975404Y (en) | 2006-12-11 | 2006-12-11 | Step structural on drive axle head intermediate frequency quenching section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975404Y true CN200975404Y (en) | 2007-11-14 |
Family
ID=38901689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620134967XU Expired - Fee Related CN200975404Y (en) | 2006-12-11 | 2006-12-11 | Step structural on drive axle head intermediate frequency quenching section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975404Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215428A (en) * | 2013-05-13 | 2013-07-24 | 许昌远东传动轴股份有限公司 | Thermal treatment method of spline shaft head of transmission shaft |
| CN104191559A (en) * | 2014-09-21 | 2014-12-10 | 金方明 | Injection molding machine main shaft connecting piece and heat processing technology thereof |
-
2006
- 2006-12-11 CN CNU200620134967XU patent/CN200975404Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215428A (en) * | 2013-05-13 | 2013-07-24 | 许昌远东传动轴股份有限公司 | Thermal treatment method of spline shaft head of transmission shaft |
| CN103215428B (en) * | 2013-05-13 | 2015-01-07 | 许昌远东传动轴股份有限公司 | Thermal treatment method of spline shaft head of transmission shaft |
| CN104191559A (en) * | 2014-09-21 | 2014-12-10 | 金方明 | Injection molding machine main shaft connecting piece and heat processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XUCHANG FAR EAST DRIVE SHAFT CO. Free format text: FORMER NAME OR ADDRESS: XUCHANG YUANDONG TRANSMISSION SHAFT CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: Xuchang City, Henan province north suburb still Town, zip code: 461111 Patentee after: Xuchang Yuandong Drive Shaft Corp. Address before: Xuchang City, Henan province north suburb still Town, zip code: 461111 Patentee before: Xuchang Yuandong Transmission Shaft Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20121211 |