CN201137568Y - Floating side board high pressure gear pump body unloading device - Google Patents
Floating side board high pressure gear pump body unloading device Download PDFInfo
- Publication number
- CN201137568Y CN201137568Y CNU2007200084750U CN200720008475U CN201137568Y CN 201137568 Y CN201137568 Y CN 201137568Y CN U2007200084750 U CNU2007200084750 U CN U2007200084750U CN 200720008475 U CN200720008475 U CN 200720008475U CN 201137568 Y CN201137568 Y CN 201137568Y
- Authority
- CN
- China
- Prior art keywords
- floating side
- side plate
- high pressure
- gear pump
- pressure 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 discloses a pump body unloading device of a floating side plate high pressure gear pump, which is a novel technique of the floating side plate high pressure gear pump, and properly relates to the pump body unloading device of the floating side plate high pressure gear pump, wherein a unloading groove (3) is added on a bearing seat (2), the unloading groove (3) is opened on the bearing seat (2), an O-shaped sealing ring (4) is added on the bearing seat (2), and a locating washer (1) is added on the rear end of a bearing (12). The O-shaped sealing ring is added on the bearing seat to reduce the internal leakage. The locating washer is added on the rear end of the bearing to achieve the purpose of locating, regulating installation size, correspondingly increasing the size of a pump body, and increasing the strength.
Description
Technical field:
The utility model is a floating side plate high-pressure gear pump new technology, and exactly, it relates to a kind of floating side plate high-pressure gear pump pump housing relief arrangement.
Background technique:
Existing floating side plate high-pressure gear pump pump housing relief arrangement is to adorn a rubber parts on floating side plate, utilize the pressure of high pressure oil, the edge that makes rubber parts is spreading radially, press the pump case inwall, thereby the gear pump zone of high pressure is limited between two floating side plates and not to external diffusion, thereby has reduced the load of the whole pump housing.Yet because the edge of rubber parts presses tightly mutually with the pump case inwall, the unsteady resistance increase of the side version of floating, flexibility decline, what make floating side plate is close to gear face and wear automatic-compensation ability drop.
Summary of the invention:
The objective of the invention is to develop a kind of floating side plate high-pressure gear pump pump housing relief arrangement.The present invention is achieved in that adding a compensating groove on the bearing support and opens a compensating groove on bearing support, adds an O-ring seals on bearing support, adds a space washer in the bearing rear end.
It is not only to make pump housing off-load but also improve the purpose of side plate activity flexibility by replacing the existing unloading method that utilizes dress rubber piston ring on the floating side plate in the method that adds a compensating groove on the bearing support, reaching.This device has increased an O-ring seals to reduce internal leakage on bearing support.This device has increased a space washer in the bearing rear end, reach the location, and installation dimension is regulated, and corresponding increase pump housing size is strengthened the purpose of intensity.
Description of drawings
Specific embodiments of the present invention is described in detail below in conjunction with accompanying drawing:
Fig. 1 is a plan view of the present utility model
Fig. 2 is the plan view of bearing support part A
Fig. 3 is the plan view of bearing support part A
Fig. 4 is the plan view of bearing support part B
Fig. 5 is the plan view of the B of bearing support part
Fig. 6 is the floating side plate structural front view
Fig. 7 is a floating side plate structure A-A sectional view
Fig. 8 is a floating side plate structure B-B sectional view
Fig. 9 is a floating side plate original structure schematic representation
In the drawings, 1 is space washer; 2 is bearing support; 3 is compensating groove; 4 is O-ring seals; 5 is floating side plate A; 6 is pump case A; 7 is O shape ring recess; 8 is rubber parts A; 9 is rubber parts B; 10 is floating side plate B; 11 is pump case B; 12 is bearing.
Embodiment
Floating side plate structure of the present invention shown in Fig. 2,3, is to adopt classical usually floating side plate structure, has overcome the negative effect that rubber parts B9 rises and brings outward, and the flexibility of floating side plate A5 is greatly increased.
The present invention is taken the unloading function of the pump housing by bearing support 2.Method is to open a compensating groove 3 (shown in Fig. 6,7,8) on bearing support 2, and logical low pressure oil in the compensating groove 3 make high pressure oil area be limited to zone between two compensating grooves 3.
In order to reduce internal leakage, the bearing support 2 between compensating groove 3 and floating side plate A5 is set up O-ring seals 4.Comparison diagram 1 and Fig. 5 are as can be seen, the high pressure oil zone of opening compensating groove 3 on bearing support 2 is more slightly larger than the high pressure oil zone of original floating side plate parts unloading, in order to make the pump housing can bear the load of this increase, this device has increased individual space washer 1 in bearing 12 rear ends, so that the axle bed size of pump case A6 increases to some extent, to increase its intensity.This space washer 1 also is a positioning ring simultaneously, the size adjustment ring during installation.
Existing floating side plate high-pressure gear pump pump housing relief arrangement is to adorn a rubber parts B9 on floating side plate B10, as Fig. 4, Fig. 5, shown in Figure 9, utilize the pressure of high pressure oil, make rubber parts B＜9〉edge spreading radially, press pump case B11 inwall, thereby the gear pump zone of high pressure is limited between the two floating side plate B10 and, thereby reduced the load of the whole pump housing not to external diffusion.Yet because the edge of rubber parts B9 presses tightly mutually with pump case B11 inwall, the unsteady resistance increase of the side version B10 that floats, flexibility decline makes that floating side plate B10's is close to gear face and wear automatic-compensation ability drop.
Claims (1)
1. a floating side plate high-pressure gear pump pump housing relief arrangement is characterized in that: open a compensating groove (3) on bearing support (2), add an O-ring seals (4) on bearing support (2), add a space washer (1) in bearing (12) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200084750U CN201137568Y (en) | 2007-10-16 | 2007-10-16 | Floating side board high pressure gear pump body unloading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200084750U CN201137568Y (en) | 2007-10-16 | 2007-10-16 | Floating side board high pressure gear pump body unloading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137568Y true CN201137568Y (en) | 2008-10-22 |
Family
ID=40038255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200084750U Expired - Fee Related CN201137568Y (en) | 2007-10-16 | 2007-10-16 | Floating side board high pressure gear pump body unloading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137568Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994674A (en) * | 2009-08-11 | 2011-03-30 | 刘敏臣 | Special paint pump |
| CN111852646A (en) * | 2020-07-09 | 2020-10-30 | 唐秦 | Shell for air supercharging device and manufacturing method thereof |
-
2007
- 2007-10-16 CN CNU2007200084750U patent/CN201137568Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994674A (en) * | 2009-08-11 | 2011-03-30 | 刘敏臣 | Special paint pump |
| CN111852646A (en) * | 2020-07-09 | 2020-10-30 | 唐秦 | Shell for air supercharging device and manufacturing method thereof |
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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: 20081022 Termination date: 20091116 |