CN201739475U - Reversing transfer case body structure - Google Patents
Reversing transfer case body structure Download PDFInfo
- Publication number
- CN201739475U CN201739475U CN201020190321XU CN201020190321U CN201739475U CN 201739475 U CN201739475 U CN 201739475U CN 201020190321X U CN201020190321X U CN 201020190321XU CN 201020190321 U CN201020190321 U CN 201020190321U CN 201739475 U CN201739475 U CN 201739475U
- Authority
- CN
- China
- Prior art keywords
- transfer case
- fitting seat
- case body
- middle housing
- body structure
- 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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- Vibration Prevention Devices (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to a reversing transfer case body structure which includes a left mounting seat and a right mounting seat respectively connected with a locomotive car and manufactured by alloy steel forge pieces. The reversing transfer case body structure also includes a middle case body manufactured by nodular cast iron pieces and connected with the left mounting seat and the right mounting seat. The reversing transfer case body structure has the beneficial effects of avoiding the hidden troubles of breaking at the part of the case body provided with a cantilever, reducing the vibration noise of the reversing transfer case and having the advantages of being convenient, effective, and feasible.
Description
Technical field
The utility model relates to a kind of transmission device, relates in particular to a kind of commutation transfer case housing structure.
Background technique
The commutation transfer case is a supporting transmission device important on the railway locomotive, and wherein casing is one of this commutation transfer case key components and parts.
The commutation transfer case is connected with railway locomotive by 10 M20 bolts on the tank ends installation cantilever, cooperates the power output and the distribution that realize locomotive with vehicle-mounted diesel engine.
As seen from Figure 1: bigger moment of flexure and impulsive load are born by commutation transfer case tank ends is installed when work the first cantilever place I and II place, the second cantilever place.Casing is a cast steel for the material that satisfies the comprehensive the subject of knowledge and the object of knowledge employing of commutation transfer case in the prior art, because of its material casting manufacturability poor, cause the inherent quality of foundry goods to be difficult to effective control, therefore the fault that casing two is installed the fracture of cantilever place takes place when the operation of commutation transfer case sometimes, cause locomotive out of service, influence railway traffic; Because the shock-absorbing properties of cast steel material is relatively poor, cause transfer case when delivery test simultaneously, vibration noise exceeds standard often, influences ordinary production.
Summary of the invention
The utility model technical issues that need to address have provided a kind of commutation transfer case housing structure, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: the left fitting seat and the right fitting seat that are connected respectively with locomotive, made by alloy steel forging; Also comprise: the middle housing of making by nodular iron casting, link to each other with right fitting seat with left fitting seat.
Compared with prior art, the beneficial effects of the utility model are: avoided casing that the hidden danger of cantilever place fracture is installed, reduced commutation transfer case vibrating noise, had easily and effectively practicable advantage.
Description of drawings
Fig. 1 is a commutation transfer case housing structure schematic representation in the prior art;
Fig. 2 is the utility model structural representation;
Fig. 3 is the front view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 2: the utility model comprises: the left fitting seat 1 and the right fitting seat 9 that are connected respectively with locomotive, made by alloy steel forging; Also comprise: the middle housing of making by nodular iron casting, link to each other with right fitting seat 9 with left fitting seat 15;
The left end of described middle housing 5 is equipped with left steel-wire screw-socket 4 and by being rigidly connected with left bolt 2 and left spring packing ring 3 and left fitting seat 1; The right-hand member of described middle housing 5 is equipped with right steel-wire screw-socket 8 and by being rigidly connected with right star screw 6 and right spring washer 7 and right fitting seat 9.
Described middle housing 5 has positioning step 10 location with the joint of two ends fitting seat.
The utility model is according to the actual behaviour in service of transfer case, by Finite Element Method whole box body has been carried out structure intensitometer calculation and Analysis, found structure strength weak point, according to the equal strength design principle, propose casing and combine by steel-wire screw-socket, high-strength bolt, screw and spring washer by two fitting seats and middle housing.The better alloy steel forging of fitting seat material selection mechanical strength, middle housing material selection combination property (comprising castability, processibility, absorbing performance and mechanical property) is spheroidal graphite cast iron better, for satisfying the assembly parts linking intensity, adopt the middle housing screw that the structure of steel-wire screw-socket is installed, improve the intensity of connection screw thread and stressed uniformity, and adopt high-strength bolt and screw.Simultaneously according to Calculation results, two fitting seats are connected with middle housing have again carried out optimal design, in middle housing and design step location, two fitting seat connections, like this, change the stress of middle housing, thereby cause dangerouse cross-section to be transferred to two fitting seats and bolt, screw and casing connection place the former load that is hit by former two cantilever places.Check and service testing through finite element analysis, can avoid two generations that cantilever place phenomenon of rupture is installed fully.Therefore, the utility model can solve the phenomenon that former casing is installed the fracture of cantilever place fully, has also reduced vibration noise simultaneously, has effectively guaranteed traffic safety.By measuring and calculating, do not bring the too much input on the cost yet, the manufacturability of Sheng Chaning is better in addition, the easier control of quality of product, effect is very effective, and is practical.
The utility model is because thereby the comprehensive mechanical property of two fitting seats has improved the reliability that the commutation transfer case uses, vibrating noise when middle housing has adopted spheroidal graphite cast iron not only to reduce the work of commutation transfer case, the casting and the technology capability of middle housing have been improved simultaneously, simultaneously, effectively brought into play the combination property of material owing to adopt the stress that group and structure have been improved.
Claims (3)
1. commutation transfer case housing structure is characterized in that comprising: the left fitting seat and the right fitting seat that are connected respectively with locomotive, made by alloy steel forging; Also comprise: the middle housing of making by nodular iron casting, link to each other with right fitting seat with left fitting seat.
2. commutation transfer case housing structure according to claim 1 is characterized in that: the left end of described middle housing is equipped with left steel-wire screw-socket and by being rigidly connected with left bolt and left spring packing ring and left fitting seat; The right-hand member of described middle housing is equipped with right steel-wire screw-socket and by being rigidly connected with right star screw and right spring washer and right fitting seat.
3. commutation transfer case housing structure according to claim 1 and 2 is characterized in that: there is the positioning step location joint of described middle housing and two ends fitting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020190321XU CN201739475U (en) | 2010-05-11 | 2010-05-11 | Reversing transfer case body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020190321XU CN201739475U (en) | 2010-05-11 | 2010-05-11 | Reversing transfer case body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739475U true CN201739475U (en) | 2011-02-09 |
Family
ID=43554750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020190321XU Expired - Fee Related CN201739475U (en) | 2010-05-11 | 2010-05-11 | Reversing transfer case body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739475U (en) |
-
2010
- 2010-05-11 CN CN201020190321XU patent/CN201739475U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Jianhao Transmission Machinery Co., Ltd. Assignor: Shanghai Jianhao Gearing Machinery Co., Ltd. Contract record no.: 2013310000033 Denomination of utility model: Reversing transfer case body structure Granted publication date: 20110209 License type: Exclusive License Record date: 20130516 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20150511 |
|
| EXPY | Termination of patent right or utility model |