CN201802620U - Automobile power steering gear pump - Google Patents
Automobile power steering gear pump Download PDFInfo
- Publication number
- CN201802620U CN201802620U CN2010201815191U CN201020181519U CN201802620U CN 201802620 U CN201802620 U CN 201802620U CN 2010201815191 U CN2010201815191 U CN 2010201815191U CN 201020181519 U CN201020181519 U CN 201020181519U CN 201802620 U CN201802620 U CN 201802620U
- Authority
- CN
- China
- Prior art keywords
- valve
- gear pump
- cone
- power steering
- automobile power
- 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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- Safety Valves (AREA)
Abstract
The utility model relates to a gear pump, particularly to an automobile power steering gear pump with a better oil seal and stable pressure and flow. The gear pump comprises a safety valve and is characterized in that the safety valve adopts a cone valve, wherein the valve core takes the shape of a cone and is matched with a conical surface of the inner chamber of the valve body; and the conicity of the cone of the valve core is 30 to 50 degrees. Since a ball valve structure in the gear pump is improved into the cone valve structure, the sealing performance is improved, the oil seal is better, and the pressure and the flow are stable; and the performance of the product is greatly improved compared with that of a product employing a ball valve.
Description
Technical field
The utility model relates to gear pump, and particularly a kind of oil sealing is better, the automobile steering power-assisted gear pump that pressure flow is more stable.
Background technique
Automobile steering power-assisted gear pump in the past in order to prevent the oil sealing leakage of oil, is provided with safety valve in it.This safety valve generally is a ball valve, but in use finds because the spool top is spherical, with the surface of contact of valve pocket only be a line, on spherical of the spool top often because greasy dirt or smalls, cause sealability poor, still cause the oil sealing leakage of oil, influence product performance.
The model utility content
The purpose of this utility model is at above-mentioned defective, provides a kind of oil sealing better, the automobile steering power-assisted gear pump that pressure flow is more stable.
The technical solution of the utility model is an automobile steering power-assisted gear pump, comprises safety valve, it is characterized in that described safety valve is a cone valve, and spool is that cone matches with the body cavity conical surface.
Described spool cone tapering is the 30-50 degree.
The utility model has the advantages that because the ball-valve structure in the gear pump is improved to cone valve structure improved sealability, oil sealing is better, pressure flow is more stable, is greatly improved when making product performance use ball valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an A-A sectional view among Fig. 1.
Fig. 3 is the structure for amplifying schematic representation of taper valve core.
Embodiment
With reference to Fig. 1, Fig. 2, the 1-protecgulum, the 2-pump housing, 3-O shape seal ring, the 4-circlip for hole, 5-band dust cover single-row radial ball bearing, the 6-actuation gear, 7-round nut lock washer, the little round nut of 8-, the 9-woodruff key, the 10-backbone sealing ring, the 11-circlip for hole, 12-mountain font seal ring, the 13-rectangular seal, the 14-floating bearing bracket, 15-bimetal composite pad, the 16-driving gear, the 17-driven gear, the 18-socket head screw, the 19-spring washer, the 20-bonnet, 21-combination seal pad, the 22-plug screw, 23-relief valve spring, the 24-emergency valve seat, 25-adjusts pad, 26-overflow valve body, 27-safety cone valve, the 28-safety valve spring, the 29-screw plug, 30-combination seal pad.As shown in Figure 1 and Figure 2, innovative point of the present utility model is that the position that ball relief valve is installed on original automobile steering power-assisted gear pump is improved to the safe cone valve of installation.Spool is that cone matches with the body cavity conical surface.So not only overcome ball valve because the surface of contact of spool and body cavity is a line, be stained with some dirts on the spool and will influence seal, the fault of oil sealing leakage of oil will take place, and because the surface of contact increase of spool and body cavity is conical surface, facts have proved that oil sealing is better, oil sealing is oil-proof, and the pressure flow of pump is more stable, and also making has bigger raising when the product performance ratio is original to use ball valve.
As shown in Figure 3, spool is made cone, and the tapering of cone is the 30-50 degree, and preferred tapering is 40 degree.
Claims (2)
1. automobile steering power-assisted gear pump comprises safety valve, it is characterized in that described safety valve is a cone valve, and spool is that cone matches with the body cavity conical surface.
2. by the described automobile steering power-assisted of claim 1 gear pump, it is characterized in that described spool cone tapering is the 30-50 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815191U CN201802620U (en) | 2010-04-30 | 2010-04-30 | Automobile power steering gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815191U CN201802620U (en) | 2010-04-30 | 2010-04-30 | Automobile power steering gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802620U true CN201802620U (en) | 2011-04-20 |
Family
ID=43872121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201815191U Expired - Fee Related CN201802620U (en) | 2010-04-30 | 2010-04-30 | Automobile power steering gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966537A (en) * | 2012-11-22 | 2013-03-13 | 无锡市东方液压件制造有限公司 | Helical gear oil pump suitable for automobile steering systems |
| CN106523354A (en) * | 2016-12-01 | 2017-03-22 | 徐州科源液压股份有限公司 | Gear pump for achieving constant current function |
-
2010
- 2010-04-30 CN CN2010201815191U patent/CN201802620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966537A (en) * | 2012-11-22 | 2013-03-13 | 无锡市东方液压件制造有限公司 | Helical gear oil pump suitable for automobile steering systems |
| CN106523354A (en) * | 2016-12-01 | 2017-03-22 | 徐州科源液压股份有限公司 | Gear pump for achieving constant current function |
| CN106523354B (en) * | 2016-12-01 | 2019-02-19 | 徐州科源液压股份有限公司 | Realize the gear pump of constant current function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20120430 |