CN102678829A - Spiral gear with circular tooth profile and for hydraulic device - Google Patents
Spiral gear with circular tooth profile and for hydraulic device Download PDFInfo
- Publication number
- CN102678829A CN102678829A CN2012101679472A CN201210167947A CN102678829A CN 102678829 A CN102678829 A CN 102678829A CN 2012101679472 A CN2012101679472 A CN 2012101679472A CN 201210167947 A CN201210167947 A CN 201210167947A CN 102678829 A CN102678829 A CN 102678829A
- Authority
- CN
- China
- Prior art keywords
- circular arc
- spiral gear
- tooth
- line segment
- circular
- 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.)
- Granted
Links
Images
Abstract
The invention belongs to mechanical parts and particularly relates to a spiral gear with the circular tooth profile and for a hydraulic device. The spiral gear comprises a driving circular spiral gear (1) and a driven circular spiral gear (2). The tooth profile (1-1 and 1-2) of the driving circular spiral gear and the driven circular spiral gear is composed of a tooth top protruding circular segment (BC), a tooth root recessed circular segment (EG) and a transition curve line segment (CE) between the tooth top protruding circular segment (BC) and the tooth root recessed circular segment (EG). The transition curve line segment (CE) is a combination line segment composed of a cosine curve line segment (CD) and a cosine curve conjugate curve line segment (DE) in tangency. The radius (AB) of the tooth top protruding circular segment is equal to the radius (FG) of the tooth root recessed circular segment. The tooth top protruding circular segment (BC) and the tooth root recessed circular segment (EG) are both in tangency with the transition curve line segment (CE). The meshing points move along the tooth profile (1-1 and 1-2) of the driving circular spiral gear and the driven circular spiral gear. The overlapping ratio of the driving circular spiral gear (1) and the driven circular spiral gear (2) is close to or equal to 1. The spiral gear with the circular tooth profile and for the hydraulic device prolongs constant volume output and improves pump efficiency.
Description
Technical field
The invention belongs to mechanical parts, particularly a kind of hydraulic pressure installation is with circular arc flank profil spiral gear.
Background technique
At present; The gear-type major part of the gear pump that China's hydraulic system is used is involute gear; The gear pump of the type has strong, the reliability advantages of higher of simple in structure, anti-systemic contamination ability, and shortcoming is the entrap phenomenon that involute gear causes, causes the gear pump of the type to have shortcomings such as noise is big, the flow output ripple is big; Spiral arc gear pump in the existing gear type transmission fluid pressure device has minimized oscillation of flows and lower noise, and shortcoming is that constant volume output is lower.
Summary of the invention
The objective of the invention is to overcome above-mentioned technical deficiency, provide a kind of noise little, can increase the between cog volume, the hydraulic pressure installation that improves constant volume output is with circular arc flank profil spiral gear.
The technological scheme that technical solution problem of the present invention adopts is: hydraulic pressure installation comprises initiatively circular arc spiral gear, driven circular arc spiral gear with circular arc flank profil spiral gear; Be characterized in that driving and driven circular arc helical tooth flank profil is made up of the transition curve line segment between tooth top dome segmental arc, tooth root concave circular arc section, tooth top dome segmental arc and the tooth root concave circular arc section; The transition curve line segment is gripped the tangent combination line segment of forming of curved segments altogether by cosine curve line segment and cosine curve; Tooth top dome segmental arc is that the center of circle, tooth top dome segmental arc radius are that radius forms with the tooth top dome segmental arc center of circle; Tooth root concave circular arc section is that the center of circle, tooth root concave circular arc section radius are that radius forms with the tooth root concave circular arc section center of circle; Tooth top dome segmental arc radius equals tooth root concave circular arc section radius; The tooth top dome segmental arc center of circle, the tooth root concave circular arc section center of circle equate with the minimum range of driving and driven circular arc spiral gear pitch circle line segment; Tooth top dome segmental arc and tooth root concave circular arc Duan Junyu transition curve line segment are tangent; When driving and driven circular arc spiral gear meshed, contact points moved along driving and driven circular arc spiral gear flank profil, and the contact ratio of driving and driven circular arc spiral gear is approaching or equal 1.
The invention has the beneficial effects as follows: hydraulic pressure installation with circular arc flank profil spiral gear under the situation that does not change centre distance, the number of teeth; Can increase the between cog volume; Improve constant volume output; Improve the efficient of pump, but also can overcome the big and big shortcoming of flow pulsation of existing gear type transmission fluid pressure device noise.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is that hydraulic pressure installation is with the driving and driven circular arc spiral gear of circular arc flank profil spiral gear engagement figure.
Fig. 2 is driving and driven circular arc spiral gear profile geometry figure among Fig. 1.
Among the figure, 1-is the circular arc spiral gear initiatively; 1-1-is circular arc spiral gear flank profil initiatively; 1-2-is circular arc spiral gear pitch circle line segment initiatively; The driven circular arc spiral gear of 2-; The driven circular arc spiral gear of 2-1-flank profil; The driven circular arc spiral gear of 2-2-pitch circle line segment; The A-tooth top dome segmental arc center of circle; The F-tooth root concave circular arc section center of circle; AB-tooth top dome segmental arc radius; FG-tooth root concave circular arc section radius; BC-tooth top dome segmental arc; CD-cosine curve line segment; The DE-cosine curve is gripped curved segments altogether; EG-tooth root concave circular arc section; CE-transition curve line segment.
Embodiment
Embodiment; With reference to accompanying drawing 1,2; Hydraulic pressure installation is made up of the transition curve line segment CE between tooth top dome segmental arc BC, tooth root concave circular arc section EG, tooth top dome segmental arc BC and the tooth root concave circular arc section EG with driving and driven circular arc spiral gear flank profil 1-1, the 2-1 of circular arc flank profil spiral gear, and transition curve line segment CE grips the tangent combination line segment of forming of curved segments DE altogether by cosine curve line segment CD and cosine curve.Tooth top dome segmental arc BC is that the center of circle, tooth top dome segmental arc Radius A B are that radius forms with tooth top dome segmental arc center of circle A; Tooth root concave circular arc section EG is that the center of circle, tooth root concave circular arc section radius FG are that radius forms with tooth root concave circular arc section center of circle F; Tooth top dome segmental arc Radius A B equals tooth root concave circular arc section radius FG; Tooth top dome segmental arc center of circle A, tooth root concave circular arc section center of circle F equate with the minimum range of driving and driven circular arc spiral gear pitch circle section 1-2,2-2; Tooth top dome segmental arc center of circle A and tooth root concave circular arc section center of circle F lay respectively at the outside and the inboard of driving and driven circular arc spiral gear pitch circle line segment 1-2,2-2, and tooth top dome segmental arc BC and tooth root concave circular arc section EG are all tangent with transition curve line segment CE.When driving and driven circular arc spiral gear 1,2 meshed, contact points moved along driving and driven circular arc spiral gear flank profil 1-1,2-1, and the contact ratio of driving and driven circular arc spiral gear 1,2 is approaching or equal 1.
Claims (1)
1. a hydraulic pressure installation is with circular arc flank profil spiral gear; Comprise initiatively circular arc spiral gear (1), driven circular arc spiral gear (2); It is characterized in that driving and driven circular arc helical tooth flank profil (1-1,2-1) is made up of the transition curve line segment (CE) between tooth top dome segmental arc (BC), tooth root concave circular arc section (EG), tooth top dome segmental arc (BC) and the tooth root concave circular arc section (EG); Transition curve line segment (CE) is gripped the tangent combination line segment of forming of curved segments (DE) altogether by cosine curve line segment (CD) and cosine curve; Tooth top dome segmental arc (BC) is that the center of circle, tooth top dome segmental arc radius (AB) are that radius forms with the tooth top dome segmental arc center of circle (A); Tooth root concave circular arc section (EG) is that the center of circle, tooth root concave circular arc section radius (FG) are that radius forms with the tooth root concave circular arc section center of circle (F); Tooth top dome segmental arc radius (AB) equals tooth root concave circular arc section radius (FG); The tooth top dome segmental arc center of circle (A), the tooth root concave circular arc section center of circle (F) equate with the minimum range of driving and driven circular arc spiral gear pitch circle line segment (2-1,2-2); Tooth top dome segmental arc (BC) and tooth root concave circular arc section (EG) are all tangent with transition curve line segment (CE); During driving and driven circular arc spiral gear (1,2) engagement, contact points moves along driving and driven circular arc spiral gear flank profil (1-1,1-2), and the contact ratio of driving and driven circular arc spiral gear (1,2) is approaching or equal 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167947.2A CN102678829B (en) | 2012-05-28 | 2012-05-28 | Spiral gear with circular tooth profile and for hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167947.2A CN102678829B (en) | 2012-05-28 | 2012-05-28 | Spiral gear with circular tooth profile and for hydraulic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678829A true CN102678829A (en) | 2012-09-19 |
| CN102678829B CN102678829B (en) | 2014-08-20 |
Family
ID=46811198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210167947.2A Active CN102678829B (en) | 2012-05-28 | 2012-05-28 | Spiral gear with circular tooth profile and for hydraulic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102678829B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321321A (en) * | 2022-01-05 | 2022-04-12 | 福建冠维汽车零部件有限公司 | Three-section arc gear and design method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2159744A (en) * | 1936-08-26 | 1939-05-23 | Brown & Sharpe Mfg | Gear pump |
| US2462924A (en) * | 1944-03-01 | 1949-03-01 | Equi Flow Inc | Gear tooth profile |
| GB827617A (en) * | 1956-02-21 | 1960-02-10 | Seiko Muto | Gear wheels |
| US3855874A (en) * | 1972-07-26 | 1974-12-24 | Hasegawa Haguruma Kk | Double mesh type w-n gear |
| CN201461897U (en) * | 2009-02-27 | 2010-05-12 | 完颜学明 | Arc spiral cylindrical gear and arc rack |
| CN101821510A (en) * | 2008-08-08 | 2010-09-01 | 住友电工烧结合金株式会社 | Internal gear pump rotor, and internal gear pump using the rotor |
| CN102227560A (en) * | 2008-12-02 | 2011-10-26 | 马尔佐基蓬佩股份公司 | Tooth profile for rotors of positive displacement external gear pumps |
| CN202597592U (en) * | 2012-05-28 | 2012-12-12 | 阜新德尔汽车部件股份有限公司 | Arc tooth profile spiral gear for hydraulic devices |
-
2012
- 2012-05-28 CN CN201210167947.2A patent/CN102678829B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2159744A (en) * | 1936-08-26 | 1939-05-23 | Brown & Sharpe Mfg | Gear pump |
| US2462924A (en) * | 1944-03-01 | 1949-03-01 | Equi Flow Inc | Gear tooth profile |
| GB827617A (en) * | 1956-02-21 | 1960-02-10 | Seiko Muto | Gear wheels |
| US3855874A (en) * | 1972-07-26 | 1974-12-24 | Hasegawa Haguruma Kk | Double mesh type w-n gear |
| CN101821510A (en) * | 2008-08-08 | 2010-09-01 | 住友电工烧结合金株式会社 | Internal gear pump rotor, and internal gear pump using the rotor |
| CN102227560A (en) * | 2008-12-02 | 2011-10-26 | 马尔佐基蓬佩股份公司 | Tooth profile for rotors of positive displacement external gear pumps |
| CN201461897U (en) * | 2009-02-27 | 2010-05-12 | 完颜学明 | Arc spiral cylindrical gear and arc rack |
| CN202597592U (en) * | 2012-05-28 | 2012-12-12 | 阜新德尔汽车部件股份有限公司 | Arc tooth profile spiral gear for hydraulic devices |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321321A (en) * | 2022-01-05 | 2022-04-12 | 福建冠维汽车零部件有限公司 | Three-section arc gear and design method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102678829B (en) | 2014-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102644588B (en) | Fluid pressure and mechanical energy converter | |
| CN202597592U (en) | Arc tooth profile spiral gear for hydraulic devices | |
| CN102678829B (en) | Spiral gear with circular tooth profile and for hydraulic device | |
| CN202539686U (en) | Saw blade transmission mechanism of pipe-cutting machine | |
| RU2015124335A (en) | HYDRAULIC HYDRAULIC MACHINE AND RELATED GEAR WHEEL | |
| CN201209552Y (en) | Low flow pulsation internal gear pump | |
| CN202992112U (en) | Novel double helical tooth synchronous pulley | |
| CN202250817U (en) | Low-noise dual-gear pump | |
| CN104455313A (en) | Design method of high-order modified eccentric circular gear and non-circular gear pair conjugated with high-order modified circular gear | |
| CN209262159U (en) | A kind of novel anchor ring cosine gear transmission | |
| CN203453051U (en) | Oil pump rotor | |
| CN104948450A (en) | Oil pump rotor | |
| CN202926608U (en) | Internal cycloid-engaged gear oil pump | |
| CN205918855U (en) | Stepless gearbox | |
| CN202560979U (en) | Pin gear | |
| CN208073693U (en) | Push and pull cam-type positive displacement pump | |
| CN203809612U (en) | Double-circular-arc correction cycloid gear planetary gear train | |
| CN202645972U (en) | Novel transmission mechanism for metering pump | |
| CN208502966U (en) | A kind of reciprocating pump with bypass regulating device | |
| CN206159001U (en) | Poor cycloid oil pump rotor of bidentate | |
| CN207161329U (en) | A kind of complete smooth three screw pump screw rotor | |
| CN202301015U (en) | Seal type tooth-shaped molded line screw | |
| CN202628504U (en) | Positive displacement single-vane hydraulic pump | |
| CN205089911U (en) | No belt formula beam -pumping unit's gearbox | |
| CN2760289Y (en) | Large-modulus helical gear oil pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |