CN204900742U - Job stabilization's micro -gear pump gear group - Google Patents
Job stabilization's micro -gear pump gear group Download PDFInfo
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- CN204900742U CN204900742U CN201520514722.9U CN201520514722U CN204900742U CN 204900742 U CN204900742 U CN 204900742U CN 201520514722 U CN201520514722 U CN 201520514722U CN 204900742 U CN204900742 U CN 204900742U
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- gear
- gear pump
- gears
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- pump
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Abstract
The utility model discloses a job stabilization's micro -gear pump gear group, including two pitch wheel, two gears are drive gear and driven gear respectively, and the parameter that two gears were gradually burst at the seams straight -teeth gear and two gears is the same, and every gear teeth number is 10, and the modulus is 1.25, and the pressure angle is 25, tip diameter and is 16mm, and reference diameter is 12.5mm, and the root diameter is 10.5mm. Gear train to the micro -gear pump improves, makes the gear pump keep job stabilization, reduces the phenomenon of oil leak, pocketed oil, extension working life.
Description
Technical field
The utility model relates to a kind of for Mini gear pump, especially a kind of Mini gear pump gear train of working stability.
Background technique
Gear pump is positive displacement devices, is widely used in industry, agricultural production.Mini gear pump is the one that in gear pump, size is less and comparatively accurate.Mini gear pump comprises one group of intermeshing actuation gear and driven gear.Actuation gear and driven gear are generally identical gear, and both structure, the number of teeth, modulus and other parameters directly affect working effect and the working life of gear pump.In existing Mini gear pump, due to unreasonable to the design of gear, the accuracy of gear is not enough, causes engagement degree not good, vibration is comparatively large, produces larger noise, even occurs the phenomenon of pocketed oil, leakage; Further, be not suitable for low viscous medium (as: water), dryly very easily scrap when turning; Meanwhile, also make gear yielding under long high pressure, working life is short.Existing gear shaft is made up of stainless steel, and degree of finish is poor, easily distortion and it is not suitable for high-temperature injection, thus makes the narrow limitation of injected plastics material large, and then affects the intensity of gear.
Model utility content
The utility model provides a kind of Mini gear pump gear train of working stability, its object is to solve existing Mini gear pump middle gear group and designs unreasonable, Gear Processing precision deficiency problem.
A kind of Mini gear pump gear train of working stability, comprise two pitch wheels, two gears are respectively actuation gear and driven gear, two gears are involute spur gear and the parameter of two gears is identical, and the number of teeth of each gear is 10, and modulus is 1.25, pressure angle is 25 °, tip diameter is 16mm, and standard pitch diameter is 12.5mm, and root diameter is 10.5mm.
Further, the tooth root slip coefficient of described gear is 2.5.
Further, a porcelain shaft is all fixed with in each gear.
Further, described gear is applied in Mini gear pump in pairs.
Further, described gear adopts PEEK material to make.
The utility model improves for the gear train of Mini gear pump, makes gear pump keep working stability, reduces the phenomenon of leakage of oil, pocketed oil, extend operating life.Its advantage is mainly reflected in the following aspects:
(1) by improvement to gear parameter, make two gears have the engagement contact ratio of appropriateness, prevent the adverse effect that actuation gear and driven gear brought owing to engage pine or tension, thus the stable operation of guarantee Mini gear pump, reduction entrap phenomenon.Meanwhile, during flank of tooth work, there is little slip coefficient, make gear have the operating life of overlength.Carry out the extraordinary involute gear improved in the utility model, be conducive to suppressing low viscous medium, even can be used for water and suppress, dryly turn the time and also greatly improve, and there is suction capacity.Thus the using scope of gear pump is increased, also reduce the dry turn of possibility that gear is scrapped.
(2) porcelain shaft is adopted to replace stainless steel shaft as gear shaft, on the one hand, there is higher hardness, not yielding, and there is better degree of finish, reduce vibration during working gear, reduce noise, on the other hand, high temperature resistant, greatly can improve the injection temperature of gear, make optional injected plastics material more diversified, thus promote the intensity of gear.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of gear train described in the utility model.
Embodiment
Embodiment of the present utility model is as follows:
A kind of Mini gear pump gear train of working stability, comprise two pitch wheels, two gears are respectively actuation gear 1 and driven gear 2, two gears are involute spur gear and the parameter of two gears is identical, and the number of teeth of each gear is 10, modulus is 1.25, pressure angle is 25 °, and tip diameter is 16mm, and standard pitch diameter is 12.5mm, root diameter is 10.5mm, and the tooth root slip coefficient of gear is 2.5.Described gear adopts PEEK material to make, and is all fixed with a porcelain shaft 3 in each gear.
Described PEEK material and polyether-ether-ketone are a kind of special engineering plastics with high temperature resistant, selflubricating, the easily excellent properties such as processing and high mechanical properties.
Carry out test by gear train described in the utility model in Mini gear pump can obtain:
Dryly turn time > 100 hours
Pressure > 17Bar
20000 hours life-spans
Use gear train of the present utility model, it is dry turn the time can more than 100 hours, and full depth tooth wheels dry turns the time is only 30s, and both compare, gear train of the present utility model has obvious advantage, makes gear not fragile in low viscosity fluid even idle cycle.And gear train described in the utility model can bear larger pressure, meanwhile, working life is also longer than general gear train greatly.
Above are only embodiment of the present utility model, but design concept of the present utility model is not limited thereto, all changes utilizing this design the utility model to be carried out to unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (5)
1. the Mini gear pump gear train of a working stability, comprise two pitch wheels, two gears are respectively actuation gear and driven gear, it is characterized in that: two gears are involute spur gear and the parameter of two gears is identical, and the number of teeth of each gear is 10, and modulus is 1.25, pressure angle is 25 °, tip diameter is 16mm, and standard pitch diameter is 12.5mm, and root diameter is 10.5mm.
2. the Mini gear pump gear train of a kind of working stability as claimed in claim 1, is characterized in that: the tooth root slip coefficient of described gear is 2.5.
3. the Mini gear pump gear train of a kind of working stability as claimed in claim 1, is characterized in that: be all fixed with a porcelain shaft in each gear.
4. the Mini gear pump gear train of a kind of working stability as claimed in claim 1, is characterized in that: described gear is applied in Mini gear pump in pairs.
5. the Mini gear pump gear train of a kind of working stability as claimed in claim 1, is characterized in that: described gear adopts PEEK material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520514722.9U CN204900742U (en) | 2015-07-16 | 2015-07-16 | Job stabilization's micro -gear pump gear group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520514722.9U CN204900742U (en) | 2015-07-16 | 2015-07-16 | Job stabilization's micro -gear pump gear group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900742U true CN204900742U (en) | 2015-12-23 |
Family
ID=54922919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520514722.9U Active CN204900742U (en) | 2015-07-16 | 2015-07-16 | Job stabilization's micro -gear pump gear group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900742U (en) |
-
2015
- 2015-07-16 CN CN201520514722.9U patent/CN204900742U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |