CN204664364U - Speed change gear - Google Patents
Speed change gear Download PDFInfo
- Publication number
- CN204664364U CN204664364U CN201520196498.3U CN201520196498U CN204664364U CN 204664364 U CN204664364 U CN 204664364U CN 201520196498 U CN201520196498 U CN 201520196498U CN 204664364 U CN204664364 U CN 204664364U
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- China
- Prior art keywords
- annular boss
- annular
- muscle
- bar shaped
- power input
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Abstract
The utility model relates to a kind of speed change gear, comprise the shell of case lid and casing composition, and the driving mechanism of enclosure, described case lid is provided with power input hole and Power output hole, with Power output hole for the center of circle is provided with the first annular boss and annular muscle, and the diameter of the first annular boss is less than the diameter of annular muscle, with Power output hole for the center of circle is also provided with the bar shaped muscle distributed in divergent shape, the medial extremity of every root bar shaped muscle is connected on the first annular boss, the outboard end of bar shaped muscle at least extends on annular muscle, and the bar shaped muscle near power input hole side is more than the bar shaped muscle away from input hole side, described power input hole periphery is provided with the second annular boss, and the first annular boss is connected by the 3rd annular boss with the second annular boss.Intensity between case lid Power output hole and power input hole is increased, and when speed change gear works, case lid can bear larger moment of torsion.
Description
Technical field
The utility model relates to automobile technical field, is specifically related to a kind of speed change gear.
Background technique
Difference speed changer carries out the closed knockdown variable speed drive of one by basic model speed changer to train, by transmission parameter variant in selecting device, realize accurate speed governing and expand the bearing capacity of basic model speed changer, or expanding the speed adjustable range of basic model speed changer.
The speed change gear used in current automobile industry, as shown in Figure 2, usually by shell, and the driving mechanism C being arranged on enclosure forms.Shell is made up of case lid B and casing A, and both are cast member, and case lid B is provided with power input hole 1 and Power output hole 2.When automobile differential transmitter works, casing A and case lid B can bear larger moment of torsion, but because power input, output are all in case lid B side, therefore higher to the requirement of strength of case lid B, usually stiffening rib can be set on case lid B to improve bulk strength.But for the poor speed changing assembly that some outputting power requires, existing stiffening rib cannot meet requirement of strength.
Model utility content
The utility model aims to provide a kind of speed change gear that can bear compared with high pulling torque, improves its case lid intensity, to ensure that case lid still can ensure good usability when bearing larger moment of torsion.
For this reason, the technological scheme that the utility model adopts is: a kind of speed change gear, comprise the shell of case lid and casing composition, and the driving mechanism of enclosure, described case lid is provided with power input hole and Power output hole, with described Power output hole for the center of circle is provided with the first annular boss and annular muscle, described first annular boss is looped around periphery, Power output hole, the diameter of annular muscle is greater than the diameter of the first annular boss, with Power output hole for the center of circle is also provided with the bar shaped muscle distributed in divergent shape, the medial extremity of every root bar shaped muscle is connected on the first annular boss, the outboard end of bar shaped muscle at least extends on annular muscle, and the bar shaped muscle near power input hole side is more than the bar shaped muscle away from power input hole side,
Described power input hole periphery is provided with the second annular boss, and the first annular boss is connected by the 3rd annular boss with the second annular boss, four circumferentially uniform location and installation boss are provided with in the periphery of the second annular boss, one of them location and installation boss is between power input hole and Power output hole, and be connected with the second annular boss by three connecting tendons, its excess-three location and installation boss is connected with the second annular boss respectively by each self-corresponding connecting plate, the width of described connecting plate, article three, the overall width of connecting tendon is reduced to each self-corresponding location and installation boss gradually by the second annular boss.
The beneficial effects of the utility model: when speed change gear works, lid section between power input hole and Power output hole can bear larger moment of torsion, and the utility model arranges the combination stiffening rib be made up of bar shaped muscle and annular muscle between power input hole and Power output hole, and the bar shaped muscle limited near power input hole side is more than the bar shaped muscle away from power input hole side, to enhance the intensity of case lid intermediate portion, guaranteeing that case lid can bear more while high pulling torque, save material to greatest extent, reduce cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the internal structure schematic diagram of existing speed change gear.
Embodiment
Below by embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Speed change gear as shown in Figure 1, primarily of the shell that case lid and casing form, and the driving mechanism composition of enclosure.Case lid is provided with power input hole 1 and Power output hole 2, in power input hole 1, Power output hole 2, all transmission shaft is installed.
With Power output hole 2 for the center of circle be provided with together the first annular boss 3 with together with annular muscle 4, first annular boss 3 be looped around periphery, Power output hole 2, the diameter of annular muscle 4 is greater than the diameter of the first annular boss 3.Be the bar shaped muscle 5 that the center of circle to be also provided with in divergent shape distribution with Power output hole 2, the medial extremity of every root bar shaped muscle 5 is connected on the first annular boss 3, and the outboard end of bar shaped muscle 5 at least extends on annular muscle 4, and part bar shaped muscle 5 outboard end reaches outside annular muscle 4.
In order to increase the intensity on case lid between power input hole 1 and Power output hole 2, bar shaped muscle 5 near power input hole 1 side is more than the bar shaped muscle 5 away from power input hole 1 side, namely the bar shaped muscle 5 between power input hole 1 and Power output hole 2 is closeer, and the bar shaped muscle 5 away from power input hole 1 side is relatively sparse.
Power input hole 1 periphery is provided with together the second annular boss 9, and the first annular boss 3 and the second annular boss 9 by together with the 3rd annular boss 10 be connected.Be provided with four circumferentially uniform location and installation boss 6 in the periphery of the second annular boss 9, one of them location and installation boss 6 between power input hole 1 and Power output hole 2, and is connected with the second annular boss 9 by three connecting tendons 7.Its excess-three location and installation boss 6 is connected with the second annular boss 9 respectively by each self-corresponding connecting plate 8, and the width of connecting plate 8, the overall width of three connecting tendons 7 are reduced to each self-corresponding location and installation boss 6 gradually by the second annular boss 9.
In addition, the diameter of power input hole 1 is preferably less than the diameter in Power output hole 2.
Claims (2)
1. a speed change gear, comprise the shell of case lid and casing composition, and the driving mechanism of enclosure, described case lid is provided with power input hole (1) and Power output hole (2), it is characterized in that: with described Power output hole (2) for the center of circle is provided with the first annular boss (3) and annular muscle (4), described first annular boss (3) is looped around Power output hole (2) periphery, the diameter of annular muscle (4) is greater than the diameter of the first annular boss (3), with Power output hole (2) for the center of circle is also provided with the bar shaped muscle (5) distributed in divergent shape, the medial extremity of every root bar shaped muscle (5) is connected on annular boss (3), the outboard end of bar shaped muscle (5) at least extends on annular muscle (4), and the bar shaped muscle (5) near power input hole (1) side is more than the bar shaped muscle (5) away from power input hole (1) side,
Described power input hole (1) periphery is provided with the second annular boss (9), and the first annular boss (3) is connected by the 3rd annular boss (10) with the second annular boss (9), four circumferentially uniform location and installation boss (6) are provided with in the periphery of the second annular boss (9), one of them location and installation boss (6) is positioned between power input hole (1) and Power output hole (2), and be connected with the second annular boss (9) by three connecting tendons (7), its excess-three location and installation boss (6) is connected with the second annular boss (9) respectively by each self-corresponding connecting plate (8), the width of described connecting plate (8), article three, the overall width of connecting tendon (7) is reduced to each self-corresponding location and installation boss (6) gradually by the second annular boss (9).
2. speed change gear according to claim 1, is characterized in that: the diameter of described power input hole (1) is less than the diameter of Power output hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196498.3U CN204664364U (en) | 2015-04-02 | 2015-04-02 | Speed change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196498.3U CN204664364U (en) | 2015-04-02 | 2015-04-02 | Speed change gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664364U true CN204664364U (en) | 2015-09-23 |
Family
ID=54134747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520196498.3U Expired - Fee Related CN204664364U (en) | 2015-04-02 | 2015-04-02 | Speed change gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819273A (en) * | 2015-04-02 | 2015-08-05 | 重庆钟华机械有限责任公司 | Speed change device |
-
2015
- 2015-04-02 CN CN201520196498.3U patent/CN204664364U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819273A (en) * | 2015-04-02 | 2015-08-05 | 重庆钟华机械有限责任公司 | Speed change device |
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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: 20150923 Termination date: 20160402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |