CN2221117Y - Energy transfer mechanism of variable gear hydraulic system - Google Patents
Energy transfer mechanism of variable gear hydraulic system Download PDFInfo
- Publication number
- CN2221117Y CN2221117Y CN 95208658 CN95208658U CN2221117Y CN 2221117 Y CN2221117 Y CN 2221117Y CN 95208658 CN95208658 CN 95208658 CN 95208658 U CN95208658 U CN 95208658U CN 2221117 Y CN2221117 Y CN 2221117Y
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- China
- Prior art keywords
- driven gear
- variable gear
- gear
- utility
- variable
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- Expired - Fee Related
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Abstract
The utility model relates to an energy transfer mechanism of the variable gear hydraulic system which belongs to a variable gear pump or a variable gear oil motor. The utility model is the improvement of the existing variable gear pump. A pressure spring used for tightly pressing and fixing a jacket plug, a driven gear, and a piston by elasticity is arranged between the jacket plug and the shaft end fixed part of the shaft of the driven gear. The existing fixed mode of simple nut fixed mode is altered, and the gap arranged on the side end face of a gear wheel can do automatic compensation. The utility model has the advantages of high volume efficiency, basically constant pressure maintenance in variate, and low working noise.
Description
The utility model relates to a kind of energy conversion mechanism for variable gear hydraulic system, i.e. gear pump with variable capacity or oil motor.
Gear pump or gear type oil motor have in field of engineering technology very widely uses, and most gear pumps or oil motor are quantitative, and gear pump with variable capacity or variable-displacement oil motor become one of focus of paying close attention in the domestic and international hydraulic transmission field recently.The inventor once disclosed a kind of gear pump with variable capacity structural design scheme in Chinese patent 90204797.3.This variable displacement gear pump is provided with a driven gear axial displacement mechanism, is used for controlling the engagement width of driving gear and driven gear, thereby the realization variable.Because the end clearance of driven gear can not be compensated, cause high and low nip leakage of oil pressure release automatically behind end wear, volumetric efficiency is low, influences using effect in actual the use.
The purpose of this utility model is a kind of improvement technological scheme that provides at the deficiency of above-mentioned variable displacement gear pump, can compensate the end clearance of driven gear automatically, to improve the volumetric efficiency of gear.
Task of the present utility model is achieved in that this variable gear hydraulic transmission energy transfer mechanism is provided with a driven gear axial displacement mechanism, be respectively equipped with a cover plug and a piston in the axial both sides of driven gear, a range controlling mechanism machinery or hydraulic pressure is controlled the axial displacement of above-mentioned parts, its characteristics are that described cover also is provided with a stage clip between the axle head fixed component of end face and passive tooth wheel shaft beyond the Great Wall, described axle head fixed component also comprises an axle sleeve, and its outer cylinder is supported in the hole on the end cap slidably.
Such scheme changes original cover plug, driven gear and piston axial nut means of fixation into the spring means of fixation, makes that driven gear end clearance and contact pressure adjustment are more simple, and the end wear post gap can be compensated automatically, and noise is also lower during work.
Below in conjunction with drawings and Examples the utility model is specified.
Fig. 1 is the utility model main structure schematic representation.
Gear pump with variable capacity is by front cover 2, and the pump housing 4 and rear end cover 6 three-major-items are assembled.In upper cavity, mainly be provided with driving gear 5, line shaft 1 and pressure drag dividing plate 3; Mainly be provided with driven gear 7, piston 8, passive tooth wheel shaft 12 and cover plug 11 in lower chamber, mechanical link stopper 14 and selector valve 13 are controlled the axial position of cover plug 11, driven gear 7 and piston 8 with matching independently or.The outer end of passive tooth wheel shaft 12 also is provided with a fixed component, comprise shaft end nut 15 and axle sleeve 16, this axle sleeve 16 is bearing in the hole of front cover 2, is provided with a stage clip 17 between axle sleeve 16 and cover plug 11, and cover plug 11, driven gear 7 and 8 three parts of piston are fixed by elastic compression.Driven gear 7 obtains better supporting in said structure, its end clearance, both sides and contact pressure adjustment are more simple, the gap can compensate again automatically after rotating wearing and tearing, this improvement does not increase the complexity of device structure, can improve the volumetric efficiency of product significantly, pressure is kept substantially constant when making variable, and reduces operating noise.
Claims (1)
1, a kind of variable gear hydraulic transmission energy transfer mechanism, be provided with a driven gear axial displacement mechanism, be respectively equipped with a cover plug and a piston in the axial both sides of driven gear, with the driven gear axial restraint, a range controlling mechanism machinery or hydraulic pressure is controlled the axial displacement of above-mentioned parts, it is characterized in that also being provided with a stage clip between the axle head fixed component of the exterior edge face of described cover plug and passive tooth wheel shaft, described axle head fixed component also comprises an axle sleeve, and its outer cylinder is supported in the hole on the end cap slidably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95208658 CN2221117Y (en) | 1995-04-25 | 1995-04-25 | Energy transfer mechanism of variable gear hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95208658 CN2221117Y (en) | 1995-04-25 | 1995-04-25 | Energy transfer mechanism of variable gear hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2221117Y true CN2221117Y (en) | 1996-02-28 |
Family
ID=33859916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95208658 Expired - Fee Related CN2221117Y (en) | 1995-04-25 | 1995-04-25 | Energy transfer mechanism of variable gear hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2221117Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345600A (en) * | 2010-07-26 | 2012-02-08 | 施韦比施冶金厂汽车有限公司 | Pressure pump with suction nut |
| CN104842973A (en) * | 2015-05-08 | 2015-08-19 | 山东蓬翔汽车有限公司 | Hydraulic retarder for heavy truck axle |
-
1995
- 1995-04-25 CN CN 95208658 patent/CN2221117Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345600A (en) * | 2010-07-26 | 2012-02-08 | 施韦比施冶金厂汽车有限公司 | Pressure pump with suction nut |
| CN104842973A (en) * | 2015-05-08 | 2015-08-19 | 山东蓬翔汽车有限公司 | Hydraulic retarder for heavy truck axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |