CN202209276U - Oil pump housing of automobile gearbox - Google Patents
Oil pump housing of automobile gearbox Download PDFInfo
- Publication number
- CN202209276U CN202209276U CN2011203370591U CN201120337059U CN202209276U CN 202209276 U CN202209276 U CN 202209276U CN 2011203370591 U CN2011203370591 U CN 2011203370591U CN 201120337059 U CN201120337059 U CN 201120337059U CN 202209276 U CN202209276 U CN 202209276U
- Authority
- CN
- China
- Prior art keywords
- boss
- seal ring
- body cavity
- back side
- oil pump
- 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
Links
Images
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model discloses an oil pump housing of an automobile gearbox, which adopts the structure that a circular body cavity is formed on the housing; an inside engaged gear chamber back boss, a seal ring boss, radial strengthening ribs and threaded hole back bosses are arranged at the bottom of the body cavity; the seal ring boss adopts a ring-shaped structure and is arranged on the inside engaged gear chamber back boss; the radial strengthening ribs are positioned on the left side of the seal ring boss, the inner ends of the radial strengthening ribs are connected with the outer surface of the seal ring boss, and the outer ends of the radial strengthening ribs are connected with the side wall of the body cavity; the threaded hole back bosses are positioned on the left side of the inside engaged gear chamber back boss and arranged on the radial strengthening ribs; and bulges are formed on closed angles which are formed by the inside engaged gear chamber back boss, the radial strengthening ribs and the threaded hole back bosses. In the utility model, the bottom of the body cavity is prevented from internal shrinkage, thereby avoiding leakage caused by the crack at the bottom of the body cavity. Therefore, the oil pump housing has the advantages of simple structure and convenience in manufacturing, can solve big problems through small alteration, and is suitable for large-scale popularization.
Description
Technical field
The utility model relates to a kind of automobile variable speed box part, relates in particular to the oil pump case of automobile gearbox.
Background technique
Like Fig. 1, shown in 2; Traditional automobile gearbox oil pump case; On this housing, be provided with circular body chamber 1; The bottom of body cavity 1 is provided with the back side, inside engaged gear chamber boss 2, seal ring boss 3, radially stiffening rib 4 and tapped hole back side boss 5, and wherein seal ring boss 3 is a loop configuration, and is positioned on the back side, the said inside engaged gear chamber boss 2; Said radially stiffening rib 4 is positioned at seal ring boss 3 left sides, and this radially links to each other with the outer surface of seal ring boss 3 the inner of stiffening rib, and radially the outer end of stiffening rib 4 links to each other with the sidewall of body cavity 1; Said tapped hole back side boss 5 is positioned at the left side of the back side, inside engaged gear chamber boss 2; And be located at radially on the stiffening rib 4; And the back side, inside engaged gear chamber boss 2, radially be formed with wedge angle 6 between stiffening rib 4 and the tapped hole back side boss 5, this wedge angle 6 is the thermal center point on die casting mould.During die casting gear box oil pump case; Because said wedge angle 6 is the thermal center point on die casting mould, so just causes being prone to the inner shrinkage porosite of formation after the bottom die casting of body cavity 1, and then the bottom of body cavity 1 is cracked; Will cause like this revealing, be badly in need of solving the problems of the technologies described above for this reason.
The model utility content
The utility model technical problem to be solved is to provide a kind of automobile gearbox oil pump case of revealing of effectively preventing.
The technological scheme of the utility model is following: a kind of automobile gearbox oil pump case; On this housing, be provided with circular body cavity (1); The bottom of body cavity (1) is provided with the back side, inside engaged gear chamber boss (2), seal ring boss (3), radially stiffening rib (4) and tapped hole back side boss (5); Wherein seal ring boss (3) is a loop configuration, and is positioned on the back side, the said inside engaged gear chamber boss (2); Said radially stiffening rib (4) is positioned at seal ring boss (3) left side, and this radially links to each other with the outer surface of seal ring boss (3) the inner of stiffening rib, and radially the outer end of stiffening rib (4) links to each other with the sidewall of body cavity (1); Said tapped hole back side boss (5) is positioned at the left side of the back side, inside engaged gear chamber boss (2); And be located at radially on the stiffening rib (4); And the back side, inside engaged gear chamber boss (2), radially be formed with wedge angle (6) between stiffening rib (4) and the tapped hole back side boss (5), its key is: be provided with convexity (7) at said sharp corner.
The utility model has been set up convexity at said sharp corner on the basis of conventional construction, should convexity owing to set up, and just no longer be the thermal center point so on die casting mould here.Adopt above technological scheme to come die casting gear box oil pump case; Because said sharp corner no longer is the thermal center point, so just can avoid the inner shrinkage porosite of formation after the bottom die casting of body cavity, just the bottom of body cavity is cracked yet; And then prevent and cause revealing; Simple in structure, easy to make, solved big problem through little change, be suitable for the large-scale promotion utilization.
For the ease of making, said convexity (7) is wholely set at said wedge angle (6) and locates.
In the present technique scheme, the upper surface of said convexity (7) is a sphere.
As optimization, the radius (R) of said convexity (7) upper surface is 5.3～5.7mm.
As preferably, the radius of said convexity (7) upper surface is that (R) is 5.5mm.
Beneficial effect: the utility model can be avoided forming inner shrinkage porosite after the bottom die casting of body cavity; Just the bottom of body cavity is cracked yet, and then prevent and cause revealing, simple in structure, easy to make; Solve big problem through little change, be suitable for the large-scale promotion utilization.
Description of drawings
Fig. 1 is the schematic representation of conventional construction;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the schematic representation of the utility model;
Fig. 4 is that the B-B of Fig. 3 is to sectional view.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Like Fig. 3, shown in 4; A kind of automobile gearbox oil pump case; On this housing, be provided with circular body chamber 1; The bottom of body cavity 1 is provided with the back side, inside engaged gear chamber boss 2, seal ring boss 3, radially stiffening rib 4 and tapped hole back side boss 5, and wherein seal ring boss 3 is a loop configuration, and is positioned on the back side, the said inside engaged gear chamber boss 2.Said radially stiffening rib 4 is positioned at the left side of seal ring boss 3, and this radially links to each other with the outer surface of seal ring boss 3 the inner of stiffening rib 4, and radially the outer end of stiffening rib 4 links to each other with the sidewall of body cavity 1.
Can find out that from Fig. 3,4 said tapped hole back side boss 5 is positioned at the left side of the back side, inside engaged gear chamber boss 2, and be located at radially on the stiffening rib 4.The back side, said inside engaged gear chamber boss 2, radially be formed with wedge angle 6 between stiffening rib 4 and the tapped hole back side boss 5.
As the improvement of the utility model, be integrally formed with convexity 7 at said wedge angle 6 places, the upper surface of this convexity 7 is a sphere.The radius R of said protruding 7 upper surfaces is 5.3～5.7mm.As preferably, the radius of said protruding 7 upper surfaces is that R is 5.5mm.
The above is merely the preferred embodiment of the utility model; It is not restriction with the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. automobile gearbox oil pump case; Circular body chamber (1); The bottom of body cavity (1) is provided with the back side, inside engaged gear chamber boss (2), seal ring boss (3), radially stiffening rib (4) and tapped hole back side boss (5); Wherein seal ring boss (3) is a loop configuration, and is positioned on the back side, the said inside engaged gear chamber boss (2); Said radially stiffening rib (4) is positioned at seal ring boss (3) left side, and this radially links to each other with the outer surface of seal ring boss (3) the inner of stiffening rib, and radially the outer end of stiffening rib (4) links to each other with the sidewall of body cavity (1); Said tapped hole back side boss (5) is positioned at the left side of the back side, inside engaged gear chamber boss (2); And be located at radially on the stiffening rib (4); And the back side, inside engaged gear chamber boss (2), radially be formed with wedge angle (6) between stiffening rib (4) and the tapped hole back side boss (5), it is characterized in that: locate to be provided with convexity (7) at said wedge angle (6).
2. automobile gearbox oil pump case according to claim 1 is characterized in that: said convexity (7) is wholely set at said wedge angle (6) and locates.
3. automobile gearbox oil pump case according to claim 1 and 2 is characterized in that: the upper surface of said convexity (7) is a sphere.
4. automobile gearbox oil pump case according to claim 3 is characterized in that: the radius (R) of said convexity (7) upper surface is 5.3～5.7mm.
5. automobile gearbox oil pump case according to claim 4 is characterized in that: the radius of said convexity (7) upper surface is 5.5mm for (R).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203370591U CN202209276U (en) | 2011-09-08 | 2011-09-08 | Oil pump housing of automobile gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203370591U CN202209276U (en) | 2011-09-08 | 2011-09-08 | Oil pump housing of automobile gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202209276U true CN202209276U (en) | 2012-05-02 |
Family
ID=45988826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203370591U Expired - Fee Related CN202209276U (en) | 2011-09-08 | 2011-09-08 | Oil pump housing of automobile gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202209276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105373A (en) * | 2018-01-11 | 2018-06-01 | 东风商用车有限公司 | A kind of gear box oil pump case |
-
2011
- 2011-09-08 CN CN2011203370591U patent/CN202209276U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105373A (en) * | 2018-01-11 | 2018-06-01 | 东风商用车有限公司 | A kind of gear box oil pump case |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202209276U (en) | Oil pump housing of automobile gearbox | |
| CN202629071U (en) | Structure for sealing gravity oil filler cap | |
| CN204194754U (en) | Die casting flange location structure | |
| CN202867364U (en) | Unclamping cylinder oil cup | |
| CN202402352U (en) | Pump cover for submersible sewage pump | |
| CN204148446U (en) | A kind of bent axle casting die | |
| CN203649355U (en) | Centrifugal casting mold for cylinder sleeve | |
| CN204783307U (en) | Circle is inlayed to piston | |
| CN202209222U (en) | Universal crankcase body for gasoline engine | |
| CN203536164U (en) | Transformer oil tank structure | |
| CN203421007U (en) | Cylindrical roller bearing provided with flange plate | |
| CN204130311U (en) | A kind of fuel-saving type oil-filled transformer | |
| CN203925725U (en) | A kind of thermostat cover cap | |
| CN203098941U (en) | Water faucet with detachable valve core | |
| CN202431781U (en) | Main cylinder of clutch | |
| CN203536161U (en) | Transformer oil tank | |
| CN203051696U (en) | Gear shifting case body of heavy-duty car | |
| CN202812365U (en) | Valve body of spray regulating and control valve | |
| CN202349011U (en) | Integrally molded clutch hub | |
| CN202627235U (en) | Foaming cement board | |
| CN202503391U (en) | Motor case | |
| CN104226959B (en) | Die casting flange location structure | |
| CN202871564U (en) | Round positioning seam allowance with grooves | |
| CN202684018U (en) | Die for preventing leakage from die cast | |
| CN202209223U (en) | Right crankshaft box body for motorcycle |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20170908 |