CN2859006Y - Automobile bridge used oil pump - Google Patents
Automobile bridge used oil pump Download PDFInfo
- Publication number
- CN2859006Y CN2859006Y CN 200520126146 CN200520126146U CN2859006Y CN 2859006 Y CN2859006 Y CN 2859006Y CN 200520126146 CN200520126146 CN 200520126146 CN 200520126146 U CN200520126146 U CN 200520126146U CN 2859006 Y CN2859006 Y CN 2859006Y
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- CN
- China
- Prior art keywords
- oil pump
- rotor
- automobile
- utility
- model
- 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 - Lifetime
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- Rotary Pumps (AREA)
Abstract
The utility model pertains to an oil pump used in lubrication for axel at automobile bridge and inter-axel differential mechanism when the automobile runs at a low speed and backs. The automobile bridge used oil pump of this utility model comprises an oil pump casing, an oil pump lid and a rotor. It is characterized in that an eccentric ring is disposed between the oil pump casing and the rotor. A pair of meshed rotors includes an inner rotor and an outer rotor which are of internal meshed gear shape. The teeth of inner rotor are less than that of outer rotor, and the center of the inner rotor is provided with a spline groove. The beneficial effect of this utility model is sufficient lubrication for automobile bridge at any time during automobile running and convenient use and installation.
Description
(1) technical field under
The utility model belongs to oil pump, lubricating parts such as axle on the vehicle bridge and interaxial differentials when being used for automobile low speed driving and reversing.
(2) background technique
The lubricated of interaxial differential on the HW duplex bridge jackshaft of now heavy vapour company exploitation etc. is to rely on the lubricant oil that is splash by the dynamic bevel gear rotation to be lubricated, to be that the lubricant oil that splash by dynamic bevel gear when the automobile low speed driving is less cause part component lubrication deficiency to its defective, so only be applicable at a high speed.
(3) summary of the invention
The utility model is in order to remedy the deficiencies in the prior art, provide a kind of can be when automobile low speed driving and reversing to the automotive axle oil pump of part sufficient lubrications such as axle on the vehicle bridge and interaxial differential.
The utility model is achieved by the following technical solution:
Automotive axle oil pump of the present utility model comprises oil pump casing, oil pump cover, rotor, and its special way is: an eccentric hoop is arranged between described oil pump casing and the rotor.Described rotor is intermeshing a pair of, comprises an internal rotor and an external rotor, and the two is interior meshed gears shape, and the tooth of internal rotor lacks than the tooth of external rotor, and the centre of internal rotor has spline; There is a limiting stopper that can limit the rotation angle of eccentric hoop the inboard of oil pump cover; Eccentric strap is connected between oil pump casing and the external rotor, have on the eccentric hoop one along the circumferential direction, greater than 180 the degree, with the corresponding groove of limiting stopper.
Automotive axle oil pump of the present utility model, the tooth of described internal rotor lacks one than the tooth of external rotor.
Automotive axle oil pump of the present utility model, oil pump cover and oil pump casing are riveted together, and the oil pump filler opening is relative with axle shaft bearing oil outlet.The gap that two place's symmetries are arranged between the eccentric hoop inboard and the oil hydraulic-pump rotor outside.This oil pump is loaded on by internal rotor on the corresponding spline of input shaft of vehicle bridge, again by being bolted on the bearing support.
The beneficial effects of the utility model are, can start whenever give vehicle bridge lubricated fully, use, install all very convenient.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Structural representation when Fig. 1 clockwise rotates for input shaft drives internal rotor.Fig. 2 is A place enlarged view.Structural representation when Fig. 3 rotates counterclockwise for input shaft drives internal rotor.Fig. 4 is B place enlarged view.
Among the figure, 1 oil pump casing, 2 internal rotors, 3 external rotors, 4 eccentric hoops, 5 limiting stoppers, 6 grooves, 7 filtration systems, 8 gaps.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
Automotive axle oil pump of the present utility model, oil pump cover and oil pump casing 1 are riveted together.
When rolling-back of car travelled, the vehicle bridge input shaft rotated drive oil pump internal rotor 2 and clockwise rotates, and internal rotor 2 drives external rotors 3 and eccentric hoop 4 rotates.When an end of the groove on the eccentric hoop 46 when limiting stopper 5 on the oil pump cover contacts, eccentric hoop 4 can not rotate, at this moment 2 of internal rotors drive external rotor 3 rotations, eccentric hoop 4 separates with oil pump external rotor 3 under the effect of gap shown in Figure 28 inner high voltage oil, lubricant oil flows shown in arrow among Fig. 3 under the effect of inner and outer rotors, enters input shaft after system 7 filters after filtration and is lubricated.
When automobile to overtake the time, the vehicle bridge input shaft drives internal rotor 2 backward rotation, internal rotor 2 drives external rotor 3 and eccentric hoop 4 rotates together, when limiting stopper 5 contacts with the other end of groove 6, eccentric hoop 4 can not rotate again, and at this moment 2 of internal rotors drive external rotor 3 rotations, and eccentric hoop 4 separates with oil pump external rotor 3 under the effect of gap shown in Figure 48 inner high voltage oil, lubricant oil flows shown in arrow among Fig. 4 under the effect of inner and outer rotors, enters input shaft after filtering and is lubricated.
Claims (2)
1. an automotive axle oil pump comprises oil pump casing, oil pump cover, rotor, it is characterized in that: an eccentric hoop is arranged between oil pump casing and the rotor; Rotor is intermeshing a pair of, comprises an internal rotor and an external rotor, and the two is interior meshed gears shape, and the tooth of internal rotor lacks than the tooth of external rotor, and the centre of internal rotor has spline; There is a limiting stopper that can limit the rotation angle of eccentric hoop the inboard of oil pump cover; Eccentric strap is connected between oil pump casing and the external rotor, have on the eccentric hoop one along the circumferential direction, greater than 180 the degree, with the corresponding groove of limiting stopper.
2. automotive axle oil pump according to claim 1 is characterized in that: the tooth of described internal rotor lacks one than the tooth of external rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126146 CN2859006Y (en) | 2005-12-20 | 2005-12-20 | Automobile bridge used oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126146 CN2859006Y (en) | 2005-12-20 | 2005-12-20 | Automobile bridge used oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859006Y true CN2859006Y (en) | 2007-01-17 |
Family
ID=37611865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520126146 Expired - Lifetime CN2859006Y (en) | 2005-12-20 | 2005-12-20 | Automobile bridge used oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859006Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289119A (en) * | 2017-07-18 | 2017-10-24 | 中国第汽车股份有限公司 | The cooling system of lubricating oil of drive axle outer circulation |
-
2005
- 2005-12-20 CN CN 200520126146 patent/CN2859006Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289119A (en) * | 2017-07-18 | 2017-10-24 | 中国第汽车股份有限公司 | The cooling system of lubricating oil of drive axle outer circulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070117 |
|
| EXPY | Termination of patent right or utility model |