CN202391721U - Powder metallurgy gear pump - Google Patents
Powder metallurgy gear pump Download PDFInfo
- Publication number
- CN202391721U CN202391721U CN2011203655971U CN201120365597U CN202391721U CN 202391721 U CN202391721 U CN 202391721U CN 2011203655971 U CN2011203655971 U CN 2011203655971U CN 201120365597 U CN201120365597 U CN 201120365597U CN 202391721 U CN202391721 U CN 202391721U
- Authority
- CN
- China
- Prior art keywords
- gear
- powder metallurgy
- driven
- driving
- driving gear
- 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 relates to a powder metallurgy gear pump, which belongs to the technology of hydraulic transmission. The powder metallurgy gear pump is characterized in that a driving gear and a driven gear are manufactured by powder metallurgy; a driving shaft and the driving gear are arranged separately, and a driven shaft and the driven gear are arranged separately; the driving shaft and the driving gear are connected through a key, and the driven shaft and the driven gear are connected through a key; and a retaining ring is arranged on each of two sides of the driving gear and the driven gear. The powder metallurgy gear pump has the advantages of easiness in batch production and maintenance, low noise, long service life, and capabilities of simplifying production process and reducing production cost.
Description
Technical field: the utility model relates to a kind of powder metallurgy toothed wheel pump, belongs to hydraulic transmission technology field.
Background technique: gear pump gear is as the main transmission part in the gear pump, requires that its intensity is high, wear resistance is good, machining accuracy is high, is proof strength; Traditional method is that axle is made as one with gear, forges into earlier base, processes again; In process of manufacture, to waste a large amount of noble metals; Process for machining is complicated, and efficient is low, and needs high-precision machining apparatus to guarantee its precision.
It is a kind of simple in structure that the purpose of the utility model is to provide, and is easy to production and processing, can significantly improve the gear meshing precision, powder metallurgy toothed wheel pump wear-resisting, corrosion-resistant, with low cost.
The model utility content: the utility model is achieved in that driving gear, driven gear processed by powder metallurgy; Driving shaft and driving gear, driven axle and driven gear split are provided with; For key connects, a back-up ring is respectively established on driving gear and driven gear both sides therebetween.
The utility model driving shaft one end is a keyway, for gear pump provides the power input.Keyway and two circlip grooves of fixed gear are arranged on driving shaft and driven axle, are the bearings position in the both sides of gear, and this axle needs heat treatment, has higher intensity, wear resistance and degree of finish.
The utility model driving gear, driven gear be two can intermeshing driving gear; Endoporus is circular, and has keyway, and material is a powder metallurgy; Accomplish through operations such as compacting, sintering, finishing and machinings, have higher precision, intensity, wear resistance and degree of finish.
The advantage of the utility model is:
1, simplified processing process is saved noble metal, energy efficient, and manufacturing efficiency is high, is easy to produce in enormous quantities.
2, precision is high, and wear resistance is good, and efficient is high, and the life-span is long.
Description of drawings: the utility model is further specified below in conjunction with accompanying drawing.
Accompanying drawing is the structural representation of the utility model.
Embodiment: this powder metallurgy toothed wheel pump comprises driving shaft 1, driven axle 2, driving gear 3, driven gear 4.Driving shaft, driven axle are processed by alloyed steel, and driving gear, driven gear are processed by powder metallurgy, and driving shaft and driving gear, driven axle and driven gear split are provided with, and adopt key 6 to connect therebetween, and a back-up ring 5 is respectively established on driving gear and driven gear both sides.Driving gear and driven gear are two same parts, and can mutual correct engagement.
This device simplified processing process is saved noble metal, energy efficient, and manufacturing efficiency is high, is easy to produce in enormous quantities, and noise is little, and the life-span is long, for ease of maintenaince.
Claims (1)
1. powder metallurgy toothed wheel pump; Comprise driving shaft (1), driven axle (2), driving gear (3), driven gear (4); Driving shaft, driven axle are processed by alloyed steel, it is characterized in that driving gear, driven gear processed by powder metallurgy, and driving shaft and driving gear, driven axle and driven gear split are provided with; Be that key (6) connects therebetween, a back-up ring (5) is respectively established on driving gear and driven gear both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203655971U CN202391721U (en) | 2011-09-20 | 2011-09-20 | Powder metallurgy gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203655971U CN202391721U (en) | 2011-09-20 | 2011-09-20 | Powder metallurgy gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391721U true CN202391721U (en) | 2012-08-22 |
Family
ID=46666651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203655971U Expired - Fee Related CN202391721U (en) | 2011-09-20 | 2011-09-20 | Powder metallurgy gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173736A (en) * | 2019-08-30 | 2020-05-19 | 重庆红宇精密工业有限责任公司 | Gear pump with axial clearance compensation device |
-
2011
- 2011-09-20 CN CN2011203655971U patent/CN202391721U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173736A (en) * | 2019-08-30 | 2020-05-19 | 重庆红宇精密工业有限责任公司 | Gear pump with axial clearance compensation device |
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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: 20120822 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |