CN201582105U - Gear type oil pump with annular oil guide slot - Google Patents
Gear type oil pump with annular oil guide slot Download PDFInfo
- Publication number
- CN201582105U CN201582105U CN2009202595393U CN200920259539U CN201582105U CN 201582105 U CN201582105 U CN 201582105U CN 2009202595393 U CN2009202595393 U CN 2009202595393U CN 200920259539 U CN200920259539 U CN 200920259539U CN 201582105 U CN201582105 U CN 201582105U
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- China
- Prior art keywords
- bridge
- gear
- axle
- 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 - Lifetime
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Abstract
The utility model relates to a gear type oil pump with an annular oil guide slot. The gear type oil pump with the annular oil guide slot comprises a pump body, a pump cover, a driving gear, a driving shaft, a transmission gear, a bridge gear and a bridge shaft, wherein the driving shaft is installed in shaft holes of the pump body and the pump cover, the outer end of the driving shaft is provided with the transmission gear, and the driving gear is arranged on the driving shaft in the pump body and is in interference fit with the driving shaft. The bridge gear is installed on the bridge shaft installed in the shaft hole of the pump body, the bridge shaft is in interference fit with the shaft hole of the pump body, and the bridge gear installed on the bridge shaft is meshed with the transmission gear installed on the driving shaft. An inclined oil hole is arranged on the bridge shaft, and the inclined oil hole on the bridge shaft is communicated with a transverse oil hole on the pump body to form a lubricating oil path. The annular oil guide slot is arranged in an inlet of the inclined oil hole on the bridge shaft; and the transverse oil hole on the pump body, the annular oil guide slot on the bridge shaft and the inclined oil hole on the bridge shaft are communicated with one another to form the lubricating oil path, and lubricating oil in the pump is transferred to the working surface of the shaft hole of the bridge gear by the annular oil guide slot through the inclined oil hole.
Description
Technical field
The utility model relates to a kind of gear type oil pump, and particularly a kind of inclined oil hole of air inlet at gear type oil pump gap bridge axle is provided with the gear type oil pump of an annular oil guide slot.
Background technique
The structure of existing gear type oil pump as shown in Figure 1, it comprises the pump housing 1, pump cover 2, driving gear 3, driving shaft 4, driving gear 5, carrier gear 6 and the axle 7 of passing a bridge.Driving shaft 4 is installed in the axis hole of the pump housing 1 and pump cover 2, and driving shaft 4 outer ends are provided with a driving gear 5, is provided with a driving gear 3 on the driving shaft 4 in the pump housing 1, and driving gear 3 adopts interference even to cooperate with driving shaft 4.Carrier gear 6 is installed on the axle 7 of passing a bridge, and the axle 7 of passing a bridge is installed in the axis hole of the pump housing 1, and the axis hole of pass a bridge axle 7 and the pump housing 1 adopts interference fit, is installed in carrier gear 6 and driving gear 5 engagements that are installed on the driving shaft 4 on the axle 7 of passing a bridge.
Be provided with inclined oil hole of air 7-1 on the axle 7 of passing a bridge, inclined oil hole of air 7-1 on the axle 7 of passing a bridge and the horizontal oilhole on the pump housing 18 connect and form lubricating oil path, and lubricant oil is transported to the axis hole working surface of carrier gear 6 in the pump by the inclined oil hole of air 7-1 of horizontal oilhole 8 on the axle 7 of passing a bridge.Because the inclined oil hole of air 7-1 aperture on the gap bridge axle 7 is less, when packing the pump housing 1 into, its aperture is difficult to aim at the orientation in horizontal oilhole 8 apertures on the pump housing 1, if the aperture dislocation will produce the oil circuit obstruction and the cutting ferrule accident takes place, and efficiency of assembling is very low.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and gear type oil pump that a kind of band shape oil guide slot is provided.
The technical solution of the utility model is: a kind of gear type oil pump of band shape oil guide slot, it comprises the pump housing, pump cover, driving gear, driving shaft, driving gear, carrier gear and gap bridge axle.Driving shaft is installed in the axis hole of the pump housing and pump cover, and the driving shaft outer end is provided with a driving gear, is provided with a driving gear on the driving shaft in the pump housing, and driving gear and driving shaft adopt interference fit.Carrier gear is installed on the axle of passing a bridge, and the axle of passing a bridge is installed in the axis hole of the pump housing, and the axis hole of pass a bridge axle and the pump housing adopts interference fit, and the carrier gear that is installed on the axle of passing a bridge meshes with the driving gear that is installed on the driving shaft.
The gap bridge axle is provided with inclined oil hole of air, and inclined oil hole of air on the axle of passing a bridge and the horizontal oilhole on the pump housing connect and the formation lubricating oil path.Inclined oil hole of air inlet is provided with an annular oil guide slot on the axle of passing a bridge, annular oil guide slot on horizontal oilhole on the pump housing and the gap bridge axle and the inclined oil hole of air on the axle of passing a bridge connect and the formation lubricating oil path, lubricant oil is transported to the axis hole working surface of carrier gear by annular oil guide slot in the pump through inclined oil hole of air.
The utility model compared with prior art has following characteristics:
The utility model is owing to the inlet of inclined oil hole of air on the axle of passing a bridge is provided with an annular oil guide slot, solved the difficult problem that inclined oil hole of air and horizontal oilhole are aimed at the aperture, can assemble in any orientation, and can guarantee that oil circuit connects, improve efficiency of assembling, avoided the oilhole dislocation and the cutting ferrule accident that causes the oil circuit to be obstructed.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is existing gear type oil pump structural representation;
Accompanying drawing 2 is the A portion enlarged view in the accompanying drawing 1;
Accompanying drawing 3 is a structural representation of the present utility model;
Accompanying drawing 4 is the B portion enlarged view in the accompanying drawing 3;
Accompanying drawing 5 is the structural representation of the axle of passing a bridge;
Accompanying drawing 6 is the plan view of accompanying drawing 5.
Embodiment
As shown in drawings: a kind of gear type oil pump of band shape oil guide slot, it comprises the pump housing 1, pump cover 2, driving gear 3, driving shaft 4, driving gear 5, carrier gear 6 and the axle 7 of passing a bridge.Driving shaft 4 is installed in the axis hole of the pump housing 1 and pump cover 2, and driving shaft 4 outer ends are provided with a driving gear 5, is provided with a driving gear 3 on the driving shaft 4 in the pump housing 1, and driving gear 3 adopts interference fit with driving shaft 4.Carrier gear 6 is installed on the axle 7 of passing a bridge, and the axle 7 of passing a bridge is installed in the axis hole of the pump housing 1, and the axis hole of pass a bridge axle 7 and the pump housing 1 adopts interference fit, is installed in carrier gear 6 and driving gear 5 engagements that are installed on the driving shaft 4 on the axle 7 of passing a bridge.
Claims (1)
1. the gear type oil pump of a band shape oil guide slot, it comprises the pump housing, pump cover, driving gear, driving shaft, driving gear, carrier gear and gap bridge axle; Driving shaft is installed in the axis hole of the pump housing and pump cover, and the driving shaft outer end is provided with a driving gear, is provided with a driving gear on the driving shaft in the pump housing, and driving gear and driving shaft adopt interference fit; Carrier gear is installed on the axle of passing a bridge, and the axle of passing a bridge is installed in the axis hole of the pump housing, and the axis hole of pass a bridge axle and the pump housing adopts interference fit, and the carrier gear that is installed on the axle of passing a bridge meshes with the driving gear that is installed on the driving shaft; The gap bridge axle is provided with inclined oil hole of air, and inclined oil hole of air on the axle of passing a bridge and the horizontal oilhole on the pump housing connect and the formation lubricating oil path; It is characterized in that: inclined oil hole of air inlet is provided with an annular oil guide slot on the axle of passing a bridge, annular oil guide slot on horizontal oilhole on the pump housing and the gap bridge axle and the inclined oil hole of air on the axle of passing a bridge connect and the formation lubricating oil path, lubricant oil is transported to the axis hole working surface of carrier gear by annular oil guide slot in the pump through inclined oil hole of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202595393U CN201582105U (en) | 2009-11-25 | 2009-11-25 | Gear type oil pump with annular oil guide slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202595393U CN201582105U (en) | 2009-11-25 | 2009-11-25 | Gear type oil pump with annular oil guide slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582105U true CN201582105U (en) | 2010-09-15 |
Family
ID=42724103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202595393U Expired - Lifetime CN201582105U (en) | 2009-11-25 | 2009-11-25 | Gear type oil pump with annular oil guide slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003244A (en) * | 2010-11-27 | 2011-04-06 | 湖南机油泵股份有限公司 | Three-helical gear oil pump |
| CN104180144A (en) * | 2014-08-12 | 2014-12-03 | 广西玉柴机器股份有限公司 | Oil pump assembly of engine |
-
2009
- 2009-11-25 CN CN2009202595393U patent/CN201582105U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003244A (en) * | 2010-11-27 | 2011-04-06 | 湖南机油泵股份有限公司 | Three-helical gear oil pump |
| CN104180144A (en) * | 2014-08-12 | 2014-12-03 | 广西玉柴机器股份有限公司 | Oil pump assembly of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hengshan Gear Co., Ltd. Assignor: Hunan Oil Pump Co., Ltd. Contract record no.: 2011430000248 Denomination of utility model: Gear type oil pump with annular oil guide slot Granted publication date: 20100915 License type: Exclusive License Record date: 20111024 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |