CN204900774U - Fashioned poor shell of integrative casting - Google Patents
Fashioned poor shell of integrative casting Download PDFInfo
- Publication number
- CN204900774U CN204900774U CN201520647808.9U CN201520647808U CN204900774U CN 204900774 U CN204900774 U CN 204900774U CN 201520647808 U CN201520647808 U CN 201520647808U CN 204900774 U CN204900774 U CN 204900774U
- Authority
- CN
- China
- Prior art keywords
- spiral bevel
- bevel gear
- shell
- setting circle
- poor shell
- 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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Abstract
The utility model discloses a fashioned poor shell of integrative casting adopts integrative casting shaping, and the middle part of poor shell is provided with the sphere inner chamber and is used for holding planetary gear and differential side gear, two of poor shell be provided with with the communicating halfshaft hole of sphere inner chamber, be provided with the planetary gear shaft hole of transversely lining up the sphere inner chamber on the poor shell, the outer wall level of poor shell is outwards extended and is formed the spiral bevel gear setting circle, the location pinhole that is provided with a longitudinal extension on the poor shell is used for locking the planetary gear axle in planetary gear shaft hole, and one side hoop of spiral bevel gear setting circle distributes and has the platform of enhancement, and every is strengthened bench and is provided with a gear fastening hole of vertically lining up the spiral bevel gear setting circle, and the root of spiral bevel gear setting circle opposite side is provided with the round platform, be provided with the locating pin that corresponds with the location pinhole breach of stepping down on the round platform, it has the straight oil groove of two at least longitudinal extensions to distribute on the halfshaft hole inner wall. Small, light in weight, with low costs, to make convenience, compact structure, intensity reliable.
Description
Technical field
The utility model relates to differential art field, is specifically related to the poor shell that a kind of integrally casting is shaping.
Background technique
Differential mechanism is assembled by differential mechanism difference shell (being called for short difference shell), planetary pinion, differential gear, semiaxis and planet pin.Difference shell serves as planetary wheel carrier, and planetary pinion, differential gear, semiaxis and planet pin are arranged in poor shell.Difference shell adopts integrally casting shaping usually, inner chamber is provided with for holding planetary pinion and differential gear at the middle part of difference shell, two of difference shell is provided with half axis hole that communicates with inner chamber for installing semiaxis, difference shell is provided with the planetary gear shaft hole of lateral direction penetrating inner chamber for installing planet pin, and the outer wall of difference shell horizontally outward extends to form spiral bevel gear setting circle for installing fixing spiral bevel gear.
The subject matter that existing structure exists is: (1) spiral bevel gear is fixed by screws in spiral bevel gear setting circle, for ensureing enough worm tooth numbers, needs the thickness increasing spiral bevel gear setting circle, cause poor shell always great, manufacture cost is high; (2) half shaft hole inner walls are provided with helical oil groove, must be added by machine and form, add one technique; (3) inner chamber is curved surface, and holding space is little, and the overall dimensions of difference shell is higher; (4) the poor shell wall at spiral bevel gear setting circle root position place is thick thinner, have impact on the bulk strength of poor shell.
Model utility content
Of the present utility modelly aim to provide that a kind of volume is little, lightweight, cost is low, easily manufactured, the reliable poor shell of compact structure, intensity.
For this reason, the technological scheme that the utility model adopts is: the poor shell that a kind of integrally casting is shaping, the middle part of described poor shell is provided with sphere inner chamber for holding planetary pinion and differential gear, two of difference shell is provided with half axis hole communicated with sphere inner chamber, difference shell is provided with the planetary gear shaft hole of lateral direction penetrating sphere inner chamber, the outer wall of difference shell horizontally outward extends to form spiral bevel gear setting circle, described poor shell is provided with the positioning pin hole of a longitudinal extension for locking the planet pin of planetary gear shaft hole, the side hoop of described spiral bevel gear setting circle is distributed with reinforcement platform, each reinforcement platform is provided with the gear fastener hole of a through spiral bevel gear setting circle of longitudinal direction, the root of described spiral bevel gear setting circle opposite side is provided with round platform, described round platform is provided with the locating stud corresponding with positioning pin hole to step down breach, described half shaft hole inner wall is distributed with the straight oil groove of at least two longitudinal extensions.
The beneficial effects of the utility model: by setting up reinforcement platform in the side of spiral bevel gear setting circle, for arranging gear fastener hole, can ensure the tooth number of screw thread, again can weight reduction, reduce costs; Set up round platform at the opposite side root of spiral bevel gear setting circle, avoid that the poor shell wall at this position is thick affects bulk strength not, because positioning pin hole just in time will be bored in this position, on round platform, correspondence arranges locating stud and to step down breach, avoids increasing drilling depth; Sphere inner chamber can increase the volume of inner chamber, and the external frame of planetary pinion, differential gear mates with sphere inner chamber, reduces the whole height of difference shell, makes overall structure more compact; Half shaft hole inner wall is provided with straight oil groove, is formed in casting process, eliminate one machining sequence.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is stereogram one of the present utility model.
Fig. 4 is stereogram two of the present utility model.
Embodiment
Below by embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Shown in composition graphs 1-Fig. 4, the poor shell that a kind of integrally casting is shaping, adopts integrally casting shaping, and the middle part of difference shell is provided with sphere inner chamber 1 for holding planetary pinion and differential gear, and planetary pinion and differential gear are arranged in sphere inner chamber 1.Two of difference shell is provided with half axis hole 2 communicated with sphere inner chamber 1, be respectively used to semiaxis (i.e. output shaft) is installed, differential mechanism is to while the semiaxis transferring power of both sides, both sides semiaxis is allowed to rotate with different rotating speeds, meet two sidecar wheels and make Unequal distance traveling with the form of pure rolling as far as possible, reduce the friction on tire and ground.
Difference shell is provided with the planetary gear shaft hole 3 of lateral direction penetrating sphere inner chamber 1, for installing planet pin, two planetary pinions are sleeved on planet pin relatively.The outer wall of difference shell horizontally outward extends to form spiral bevel gear setting circle 4, and spiral bevel gear setting circle 4 is for installing spiral bevel gear, and spiral bevel gear is fixedly mounted on spiral bevel gear setting circle 4, and is with moment shell to rotate together, is connected with the power input shaft of differential mechanism.
Difference shell is provided with the positioning pin hole 7 of a longitudinal extension for installing locating stud, and locating stud inserts on the planet pin of locking planetary gear shaft hole 3, exits in planetary gear shaft hole 3 to prevent planet pin.
The side hoop of spiral bevel gear setting circle 4 is distributed with strengthens platform 5, and each reinforcement platform 5 is provided with the gear fastener hole 6 of a through spiral bevel gear setting circle 4 of longitudinal direction, spiral bevel gear is arranged on the one side not arranging and strengthen platform 5, and passes through screw lock.The root of spiral bevel gear setting circle 4 opposite side is provided with round platform 9, round platform 9 is provided with the locating stud corresponding with positioning pin hole 7 and steps down breach 9a.Half axis hole 2 inwall is distributed with the straight oil groove 8 of at least two longitudinal extensions.
Preferably, the reinforcement platform 5 on spiral bevel gear setting circle 4 totally eight, and circumferentially uniform; Gear fastener hole 6 and reinforcement platform 5 one_to_one corresponding, be therefore also eight.Each half axis hole 2 inwall is evenly equipped with three straight oil grooves 8, but is not limited to three.
Claims (3)
1. the poor shell that an integrally casting is shaping, it is characterized in that: the middle part of described poor shell is provided with sphere inner chamber (1) for holding planetary pinion and differential gear, two of difference shell is provided with half axis hole (2) communicated with sphere inner chamber (1), difference shell is provided with the planetary gear shaft hole (3) of lateral direction penetrating sphere inner chamber (1), the outer wall of difference shell horizontally outward extends to form spiral bevel gear setting circle (4), described poor shell is provided with the positioning pin hole (7) of a longitudinal extension for locking the planet pin of planetary gear shaft hole (3), the side hoop of described spiral bevel gear setting circle (4) is distributed with strengthens platform (5), each reinforcement platform (5) is provided with the gear fastener hole (6) of a through spiral bevel gear setting circle (4) of longitudinal direction, the root of described spiral bevel gear setting circle (4) opposite side is provided with round platform (9), described round platform (9) is provided with the locating stud corresponding with positioning pin hole (7) to step down breach (9a), described half axis hole (2) inwall is distributed with at least two straight oil grooves (8) of longitudinal extension.
2. the poor shell that integrally casting according to claim 1 is shaping, is characterized in that: each described half axis hole (2) inwall is evenly equipped with three straight oil grooves (8).
3. the poor shell that integrally casting according to claim 1 and 2 is shaping, is characterized in that: the reinforcement platform (5) on described spiral bevel gear setting circle (4) totally eight, and circumferentially uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647808.9U CN204900774U (en) | 2015-08-26 | 2015-08-26 | Fashioned poor shell of integrative casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647808.9U CN204900774U (en) | 2015-08-26 | 2015-08-26 | Fashioned poor shell of integrative casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900774U true CN204900774U (en) | 2015-12-23 |
Family
ID=54922951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520647808.9U Expired - Fee Related CN204900774U (en) | 2015-08-26 | 2015-08-26 | Fashioned poor shell of integrative casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900774U (en) |
-
2015
- 2015-08-26 CN CN201520647808.9U patent/CN204900774U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |