CN204099877U - A kind of gear assembly be applied in oil pump - Google Patents
A kind of gear assembly be applied in oil pump Download PDFInfo
- Publication number
- CN204099877U CN204099877U CN201420499097.0U CN201420499097U CN204099877U CN 204099877 U CN204099877 U CN 204099877U CN 201420499097 U CN201420499097 U CN 201420499097U CN 204099877 U CN204099877 U CN 204099877U
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- CN
- China
- Prior art keywords
- gear
- driven gear
- inner ring
- driving
- outer ring
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of gear assembly be applied in oil pump, comprise inside hollow out the driven gear of setting and be located in driven gear, and with the driving gear of axis hole, driving shaft is provided with in axis hole, one or more gear teeth of described driving gear can be meshed with the gear teeth of driven gear in rotation, this driving gear outside is provided with a circle rubber outer ring, described driven gear inside is provided with a circle rubber inner ring, described rubber inner ring is located on the inwall of driven gear along the shape of driven gear, described rubber inner ring is provided with several and rubber inner ring is fixed on fixed unit on driven gear.This technology mainly relies on the tooth profiles of driven gear and driving gear and the design of length, reaches and forwards any position to, and gear line total energy becomes mutually the technique effect of point cantact.
Description
Technical field
The utility model relates to a kind of gear assembly be applied in oil pump, especially a kind of good seal performance, and structure is simple, easy to operate gear assembly.
Background technique
A kind of gear assembly be applied in oil pump serves conclusive effect in the middle of whole engine lubrication; it provides the machine oil of enough pressure and flow for whole motor; to ensure that each friction member is lubricated fully, the pressure part that protection is relevant is not damaged.Oil pump generally includes the pump housing, gear assembly, driving shaft, pump cover, and the working principle of oil pump is: when the engine operates, and the timing gear of bent axle drive oil pump to rotate.Rotor tooth form designs make rotor forward any position to, and gear line can become point cantact mutually.Like this, just form closed chamber between inside/outside rotor, when turning over from filler opening, volume increases, and produce degree of vacuum, machine oil just sucks through filler opening; When the chamber and oil outlet that suck machine oil are connected, the volume in chamber reduces, and oil pressure raises, and machine oil extrudes from oil outlet.Motor ceaselessly operates, and oil pump also ceaselessly operates, and forces machine oil by the path circulation of regulation.Because gear is in continuous running, can produce certain loss, when loss is too much, sealability will be difficult to ensure, machine oil cannot be inhaled into out in oil pocket, greatly reduces the working life of oil pump.
Model utility content
Problem to be solved in the utility model is to provide a kind of good seal performance, and structure is simple, easy to operate gear assembly.
For solving the problems of the technologies described above, the utility model comprises inside and hollows out the driven of setting
For solving the problems of the technologies described above, the utility model comprises inside and hollows out the driven gear of setting and be located in driven gear, and with the driving gear of axis hole, driving shaft is provided with in axis hole, one or more gear teeth of described driving gear can be meshed with the gear teeth of driven gear in rotation, this driving gear outside is provided with a circle rubber outer ring, described driven gear inside is provided with a circle rubber inner ring, described rubber inner ring is located on the inwall of driven gear along the shape of driven gear, described rubber inner ring is provided with several and rubber inner ring is fixed on fixed unit on driven gear.
After have employed said structure, the motion mode of driving gear and driven gear is quotidian technology, this technology mainly relies on the tooth profiles of driven gear and driving gear and the design of length, reach and forward any position to, gear line total energy becomes mutually the technique effect of point cantact, due to rubber outer ring and rubber inner ring be arranged so that driving gear and driven gear contact the engagement no longer relying on the gear teeth, but constantly move by gear, then two rubber rings on gear contact with each other, reach the effect of sealing, due to the physical property of rubber itself, make the contact sealability between rubber ring very good, arranging of fixed unit can make rubber inner ring well be close on the inwall of this driven gear.
As further improvement of the utility model, described rubber outer ring is circular setting, and the radius of this rubber outer ring is less than the wheel tine length of driving gear, and driving gear is wrapped in the circular space of this rubber outer ring formation by described rubber outer ring.
After have employed said structure, because driving gear is meshed with the groove of driven gear, so only a rubber ring need be wrapped in driving gear outside, when driving gear will be meshed with the groove of driven gear, due to the physical property of rubber ring, understand the motion automatic Compression shape because of driving gear and contact with rubber inner ring.
As further improvement of the utility model, between the gear teeth of described driven gear and the gear teeth, interval is arranged, and forms groove, and described fixed unit is located on the both sides sidewall of each groove relatively, and described fixed unit is an arch fastener.
After have employed said structure, fixed unit is arranged on the interval between the gear teeth of driven gear and the gear teeth, can realize fixing, when pinion rotation on two side directions of rubber inner ring easily, meeting is according to the shape of groove, and rubber inner ring is suitable according to the shape of groove.
As further improvement of the utility model, described fastener is arch form projection, the protruding two ends of arch projection are plastic material and top is arrowhead-shaped setting, the sidewall of described driven gear and this corresponding part, protruding two ends are provided with jack, are provided with the shoulder rank suitable with arrowhead-shaped top in jack.
After have employed said structure, due to the plasticity speciality of projection, deformation can be there is under certain stressing conditions, and top is arrow-shaped setting, can top be inserted in jack, and only need presses the both sides of projection, just arrow-shaped top can be ejected, reach dismountable technique effect.
Embodiment
Accompanying drawing explanation
Figure 1 shows that the plan view of gear assembly;
Fig. 2 is fixed unit structural representation;
Fig. 3 is outlet structure schematic diagram;
As shown in Figure 1, this gear assembly comprises inside and hollows out the driven gear (1) of setting and be located in driven gear (1), and with the driving gear (2) of axis hole (3), axis hole is provided with driving shaft in (3), one or more gear teeth of described driving gear (2) can be meshed with the gear teeth of driven gear (1) in rotation, this driving gear (2) outside is provided with a circle rubber outer ring (4), rubber outer ring (4) is circular setting, and the radius of this rubber outer ring (4) is less than the wheel tine length of driving gear (2), driving gear is wrapped in the circular space that this rubber outer ring (4) formed by described rubber outer ring (4).Described driven gear (1) inside is provided with a circle rubber inner ring (5), described rubber inner ring (5) is located on the inwall of driven gear (1) along the shape of driven gear (1), and described rubber inner ring (5) is provided with several and rubber inner ring (5) is fixed on fixed unit on driven gear (1).Between the gear teeth of described driven gear (1) and the gear teeth, interval is arranged, and forms groove (6), and described fixed unit is located on the both sides sidewall of each groove (6) relatively, and described fixed unit is an arch fastener.
As shown in Figure 2, described fastener is arch form projection (7), the protruding two ends of arch projection (7) are plastic material and top is arrowhead-shaped setting, sidewall and this corresponding part, protruding two ends of described driven gear (1) are provided with jack (8), are provided with the shoulder rank (9) suitable with arrowhead-shaped top in jack (8).
During use, because driving gear constantly moves, make rubber outer ring and rubber inner ring progressively along with the shape phase transition of gear and groove, when driving gear and driven gear reach dot encapsulation, rubber inner ring will tightly contact with rubber outer ring, considerably increases sealability, and rubber outer ring and rubber inner ring are without any other fixing device, facilitate the replacing of user to rubber ring, and fixed unit can prevent rubber inner ring from moving left and right thus cisco unity malfunction.
Claims (4)
1. one kind is applied to the gear assembly in oil pump, comprise inside hollow out the driven gear of setting and be located in driven gear, and with the driving gear of axis hole, driving shaft is provided with in axis hole, one or more gear teeth of described driving gear can be meshed with the gear teeth of driven gear in rotation, it is characterized in that: this driving gear outside is provided with a circle rubber outer ring, described driven gear inside is provided with a circle rubber inner ring, described rubber inner ring is located on the inwall of driven gear along the shape of driven gear, described rubber inner ring is provided with several and rubber inner ring is fixed on fixed unit on driven gear.
2. a kind of gear assembly be applied in oil pump according to claim 1, it is characterized in that: described rubber outer ring is arranged for circular, and the radius of this rubber outer ring is less than the wheel tine length of driving gear, driving gear is wrapped in the circular space of this rubber outer ring formation by described rubber outer ring.
3. a kind of gear assembly be applied in oil pump according to claim 1, it is characterized in that: between the gear teeth of described driven gear and the gear teeth, interval is arranged, and form groove, described fixed unit is located on the both sides sidewall of each groove relatively, and described fixed unit is an arch fastener.
4. a kind of gear assembly be applied in oil pump according to claim 3, is characterized in that: described fastener is arch form
Projection, the protruding two ends of arch projection are plastic material and top is arrowhead-shaped setting, and the sidewall of described driven gear and this corresponding part, protruding two ends are provided with jack, are provided with the shoulder rank suitable with arrowhead-shaped top in jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499097.0U CN204099877U (en) | 2014-09-02 | 2014-09-02 | A kind of gear assembly be applied in oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499097.0U CN204099877U (en) | 2014-09-02 | 2014-09-02 | A kind of gear assembly be applied in oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099877U true CN204099877U (en) | 2015-01-14 |
Family
ID=52268306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420499097.0U Expired - Fee Related CN204099877U (en) | 2014-09-02 | 2014-09-02 | A kind of gear assembly be applied in oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067845A (en) * | 2019-05-15 | 2019-07-30 | 天津津泊伟业预应力科技有限公司 | A kind of timing gears facilitating docking |
-
2014
- 2014-09-02 CN CN201420499097.0U patent/CN204099877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067845A (en) * | 2019-05-15 | 2019-07-30 | 天津津泊伟业预应力科技有限公司 | A kind of timing gears facilitating docking |
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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: 20150114 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |