CN201696851U - Combined type motorcycle engine oil pump - Google Patents
Combined type motorcycle engine oil pump Download PDFInfo
- Publication number
- CN201696851U CN201696851U CN2010202387406U CN201020238740U CN201696851U CN 201696851 U CN201696851 U CN 201696851U CN 2010202387406 U CN2010202387406 U CN 2010202387406U CN 201020238740 U CN201020238740 U CN 201020238740U CN 201696851 U CN201696851 U CN 201696851U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- pump
- engine oil
- pump housing
- 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
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Abstract
The utility model discloses a combined type motorcycle engine oil pump, which overcomes the defect of obvious low engine oil flow rate and pressure of the existing product at a low speed. The combined type motorcycle engine oil pump consists of a pump body (4) and a pump cover (6) which are mutually connected, wherein an inner cycloidal gear (7), an outer cycloidal gear (8) and a rotating shaft (2) are arranged in the pump body (4), the axial part of the rotating shaft (2) positioned at the outer side of the pump body (4) is provided with a transmission gear (3), the end part of the rotating shaft (2) positioned in the pump body (4) is connected with the inner cycloidal gear (7) in the radial direction, a shaft neck of the shaft (2) connected with the transmission gear (3) is provided with an annular flange (9), the rotating shaft (2) is made of steel materials, and the transmission gear (3) is made of plastic materials, and is formed into a whole body with the rotating shaft (2) and the annular flange (9) through injection molding. The product of the utility model has the obviously improved engine oil flow rate and pressure, the service life is prolonged, and the normal work of an engine can be effectively ensured.
Description
Technical field
The utility model relates to the matching used oil pump product of a kind of motorcycle engine manufacturing technology, especially refers to the linkage structure technology of its driving gear and rotating shaft.
Background technique
Machine oil pump for motor is a kind of rotating speed height, uses frequent engineering goods that it also is to guarantee normal cooling of motorcycle gasoline engine and lubricated important accessory; Traditional oil pump product is combined by the pump housing and pump cover, is provided with a pair of inside and outside cycloid wheel in its middle pump body, and it utilizes rotating shaft to drive the rotation of hypocycloid wheel, realizes the engagement between the inside and outside cycloid wheel and makes machine oil produce working pressure; This type of comparatively typical product is common GCC100 type oil pump product on the market as shown in Figure 1, and its technical parameter is 3.0L/5540r/min, is widely used in Honda series 125 motors supporting; The driving gear of this product and rotating shaft are by the plastic materials once injection moulding at present, though have the manufacturing efficiency height, advantage of low manufacturing cost, but consider that plastic materials has the thermal expansion coefficient height, surface hardness is hanged down not wear-resisting characteristic, so the pump housing endoporus with this product in manufacturing and designing is of a size of Φ 9mm, and plastics rotating shaft size only is Φ 8.65mm, the gap that has 0.35mm between the two, so big gap mainly is in order to remedy the characteristic of plastics rotating shaft thermal expansion, and plastics rotating shaft and metal pump housing endoporus are killed phenomenon when preventing that oil pump from running up; Therefore because the defective in the design, the obvious defective on the low side of oil flow rate and pressure when making existing GCC100 type oil pump product ubiquity low speed.
The model utility content
The technical problems to be solved in the utility model is oil flow rate and pressure is obviously on the low side, the plastics rotating shaft is not wear-resisting defective and a deficiency when overcoming the low speed that prior art products exists, and provides a kind of oil flow rate and pressure stability, reliable long-acting machine oil pump for motor product to society.
The technological scheme that its technical problem that solves the utility model adopts is: the combined motorcycle oil pump comprises the interconnected pump housing and pump cover, is provided with hypocycloid wheel, epicyclodial wheel and rotating shaft in the described pump housing; The axial region that described rotating shaft is positioned at the described pump housing outside is provided with driving gear, and the described roller end that is positioned at the described pump housing is connected with described hypocycloid wheel radial; Described rotating shaft is provided with annular flange with the axle journal that described driving gear is connected; Described rotating shaft is made by steel, and described driving gear is made by plastic material; Described driving gear and described rotating shaft and described annular flange thereof are injection molded into one.
The radial equipartition of described annular flange has a plurality of grooves; The described roller end that is positioned at the described pump housing is provided with flat gesture and is connected with described hypocycloid wheel radial.
The utility model combined motorcycle oil pump product, owing to rotating shaft is made by steel, so the rotating shaft outside dimension is Φ 9mm when design, the axle tolerance; Corresponding pump housing endoporus internal diameter size also is Φ 9mm, the hole tolerance; Make between the two gap be far smaller than the 0.35mm of existing product after the such fit tolerance that adopts, significantly reduced the generation of lubricating oil leakage phenomenon thus, oil flow rate and pressure obviously improve; Because rotating shaft is made by steel, and its wear-resisting property improves greatly than the plastics rotating shaft of existing product, prolong working life simultaneously, effectively guaranteed the proper functioning of motor.Compare than prior art products, have characteristics novel, reasonable in design, compact structure, be widely used in the supporting application of motorcycle main frame factory.
Description of drawings
Fig. 1 is existing GCC100 type oil pump product structure schematic representation.
Fig. 2 is the utility model product structure schematic representation.
Fig. 3 is the right TV structure schematic representation (omission driving gear) of Fig. 2.
Fig. 4 is the utility model product turning shaft structure schematic representation.
Fig. 5 is the right TV structure schematic representation of Fig. 4.
Embodiment
As shown in Figures 2 and 3, the utility model combined motorcycle oil pump comprises the pump housing 4 and the pump cover 6 that is linked into an integrated entity by screw 1; Be penetrated with between the described pump housing 4 and the pump cover 6 through hole 5 is installed; Be provided with hypocycloid wheel 7, epicyclodial wheel 8 and rotating shaft 2 in the described pump housing 4; Described rotating shaft 2 is made by steel, and the axial region that described rotating shaft 2 is positioned at the described pump housing 4 outsides is provided with driving gear 3, and described rotating shaft 2 ends that are positioned at the described pump housing 4 are provided with flat gesture 11 and radially are connected with described hypocycloid wheel 7; As shown in Figure 4 and Figure 5, described rotating shaft 2 is provided with annular flange 9 with the axle journal that described driving gear 3 is connected, and the radial equipartition of described annular flange 9 has a plurality of grooves 12; Described driving gear 3 is made by plastic material and is injection molded into one with described rotating shaft 2 and described annular flange 9 thereof.
Continue in conjunction with the accompanying drawings the working principle of summary the utility model product below.As shown in Figures 2 and 3, after described driving gear 3 is subjected to engine-driving, drive described rotating shaft 2 high speed rotating via described pin 9; Because the described rotating shaft 2 of the utility model product is made by steel, the outside dimension of described rotating shaft 2 is Φ 9mm when design, the axle tolerance; The described pump housing 4 endoporus 10 internal diameter sizes also are Φ 9mm, the hole tolerance; Make between the two gap be far smaller than the 0.35mm of existing product after the such fit tolerance that adopts, significantly reduced the generation of lubricating oil leakage phenomenon thus, oil flow rate and pressure obviously improve; The axle journal of rotating shaft 2 is provided with the annular flange 9 of a plurality of grooves 12 of tool, helps improving the injection moulding combination force of driving gear 3 and rotating shaft 2; Simultaneously because rotating shaft 2 is made by steel, and its wear-resisting property improves greatly than the plastics rotating shaft of existing product, prolong working life, effectively guaranteed the proper functioning of motor.
Claims (2)
1. a combined motorcycle oil pump comprises the interconnected pump housing (4) and pump cover (6), is provided with hypocycloid wheel (7), epicyclodial wheel (8) and rotating shaft (2) in the described pump housing (4); The axial region that described rotating shaft (2) is positioned at the described pump housing (4) outside is provided with driving gear (3), and described rotating shaft (2) end that is positioned at the described pump housing (4) is taken turns (7) with described hypocycloid and radially is connected; It is characterized in that: the axle journal that described rotating shaft (2) is connected with described driving gear (3) is provided with annular flange (9); Described rotating shaft (2) is made by steel, and described driving gear (3) is made by plastic material; Described driving gear (3) is injection molded into one with described rotating shaft (2) and described annular flange (9) thereof.
2. combined motorcycle oil pump according to claim 1, it is characterized in that: the radial equipartition of described annular flange (9) has a plurality of grooves (12); Described rotating shaft (2) end that is positioned at the described pump housing (4) is provided with flat gesture (11) and takes turns (7) with described hypocycloid and radially is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202387406U CN201696851U (en) | 2010-06-22 | 2010-06-22 | Combined type motorcycle engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202387406U CN201696851U (en) | 2010-06-22 | 2010-06-22 | Combined type motorcycle engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696851U true CN201696851U (en) | 2011-01-05 |
Family
ID=43398096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202387406U Expired - Fee Related CN201696851U (en) | 2010-06-22 | 2010-06-22 | Combined type motorcycle engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339595A (en) * | 2017-07-25 | 2017-11-10 | 力帆实业(集团)股份有限公司 | Motorcycle engine oil pump assembly |
-
2010
- 2010-06-22 CN CN2010202387406U patent/CN201696851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339595A (en) * | 2017-07-25 | 2017-11-10 | 力帆实业(集团)股份有限公司 | Motorcycle engine oil pump assembly |
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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: NINGBO ZHONGHUANG MACHINE & ELECTRICS CO., LTD. Assignor: Cao Keding Contract record no.: 2011990000449 Denomination of utility model: Combined type motorcycle engine oil pump Granted publication date: 20110105 License type: Exclusive License Record date: 20110610 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20130622 |