CN205559271U - High -pressure gear pump curb plate - Google Patents
High -pressure gear pump curb plate Download PDFInfo
- Publication number
- CN205559271U CN205559271U CN201620214205.4U CN201620214205U CN205559271U CN 205559271 U CN205559271 U CN 205559271U CN 201620214205 U CN201620214205 U CN 201620214205U CN 205559271 U CN205559271 U CN 205559271U
- Authority
- CN
- China
- Prior art keywords
- side plate
- oil groove
- curb plate
- gear pump
- groove
- 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 high -pressure gear pump curb plate, curb plate are equipped with two shaft holes, and the both sides middle part of curb plate all was equipped with the oil groove, all are equipped with the compensating groove in curb plate working face middle part both sides, are equipped with the arc seal groove in curb plate back diaxon hole periphery, the tip external diameter that every shaft hole of its characterized in that corresponds is less than the external diameter of its both sides. The utility model discloses effectively axial force that the balance gear receives and radial unbalance loading reduce wearing and tearing by a wide margin to the reduction is generated heat, prolongs the life of gear pump.
Description
Technical field
The utility model relates to a kind of side plate for high-pressure gear pump.
Background technology
Pressure rating and the service life of gear pump are required more and more higher by main engine plants' (such as digging machine, crane, bull-dozer etc.) the most mostly, and side plate is installed on gear two ends, has a major impact this as critical component.Existing side plate is provided with two axis holes, and two middle side parts of side plate were equipped with oil groove, and in the middle part of side plate working face, both sides are equipped with compensating groove, is provided with arc seal groove in axis hole periphery, the side plate back side two, and the outer end diameter that each axis hole is corresponding is equal with the external diameter of its both sides；This structure shortcoming under high pressure load is: 1, gear face is little with the contact area of hydraulic oil, and axial force suffered by gear is difficult to balance, and side plate and the friction of the flank of tooth are relatively big and eccentric wear phenomenon is serious, inefficacy easy to wear；2, gear bears radially unbalance loading, causes bearing or axle wear out failure；3, operating under high load conditions, side plate and the friction of gear cause gear pump heating serious, affect service life.
Utility model content
The purpose of this utility model is for deficiencies of the prior art, it is provided that a kind of side plate of high pressure gear pump, axial force suffered by its energy active balance gear and radially unbalance loading, significantly reduces abrasion, and reduces heating, extends the service life of gear pump.
For reaching above-mentioned purpose, a kind of side plate of high pressure gear pump of the present utility model, side plate is provided with two axis holes, two middle side parts of side plate were equipped with oil groove, in the middle part of side plate working face, both sides are equipped with compensating groove, it is provided with arc seal groove, it is characterised in that the outer end diameter that each axis hole is corresponding is less than the external diameter of its both sides in axis hole periphery, the side plate back side two；
This structure is equivalent to the processing at side plate two ends and removes one section of arc area for being full of high-voltage oil liquid, can increase the contact area of gear face and hydraulic oil, can axial force suffered by balance gear, reduce the friction of side plate and the flank of tooth, the most easy to wear；
As further improvement of the utility model, being arranged with two and draw oil groove on side plate low-pressure side working face, two to draw oil groove corresponding with respective axis hole, and each to draw oil groove the most triangular in shape, and width and the degree of depth of drawing oil groove are all gradually reduced in the middle part of side plate by side end；Draw oil groove by elongated triangle and further fluid is incorporated into gear face depths, fluid is conducive to penetrate into gear face, form uniform oil film, keep there is a small amount of oil circulation all the time between the flank of tooth and side plate, contact surface temperature is reduced while increasing lubrication, reduce heating, and balancing axial floating power, reduce abrasion；
As further improvement of the utility model, it is arranged with at the back side, side plate high-pressure side and connected oil groove in the middle part of oil groove two with arc seal groove；Introducing hydraulic oil to equal with pumping out hydraulic fluid port pressure in arc seal groove by oil groove in the middle part of two, from side plate can be made the most quickly to respond along with the change of oil-out pressure, holding is axial and hydraulic radial dynamic balance；
In sum, axial force suffered by the utility model energy active balance gear and radially unbalance loading, significantly reduce abrasion, and reduce heating, extend the service life of gear pump.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model embodiment.
Fig. 2 is the rearview of Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings the utility model is described in further detail.
As shown in Figure 1 to Figure 2, a kind of side plate of high pressure gear pump, side plate 1 is provided with two axis holes 2,3, two middle side parts of side plate 1 were equipped with oil groove 4 and 5, in the middle part of side plate 1 working face, both sides are equipped with compensating groove 6 and 7, be provided with arc seal groove 8 in axis hole 2,3 periphery, side plate 1 back side two, outer end diameter R1 of each axis hole 2 or 3 correspondence is less than the external diameter R2 of its both sides；Being arranged with two on side plate 1 low-pressure side working face and draw oil groove 9, two to draw oil groove 9 corresponding with respective axis hole 2 or 3, and each to draw oil groove 9 the most triangular in shape, and width and the degree of depth of drawing oil groove 9 are all gradually reduced in the middle part of side plate by side end；It is arranged with at the back side, side plate 1 high-pressure side and connected oil groove 10 in the middle part of oil groove 4 two with arc seal groove 8；
During use, in arc seal groove 8, it is provided with sealing ring；Outer end diameter R1 due to each axis hole 2 or 3 correspondence is less than the external diameter R2 of its both sides, this structure is equivalent to the processing at side plate 1 two ends and removes one section of arc area for being full of high-voltage oil liquid, the contact area of gear face and hydraulic oil can be increased, with axial force suffered by balance gear, reduce the friction of side plate 1 and the flank of tooth, the most easy to wear；Draw oil groove 9 by elongated triangle and further fluid is incorporated into gear face depths, fluid is conducive to penetrate into gear face, form uniform oil film, keep there is a small amount of oil circulation all the time between the flank of tooth and side plate 1, reduce contact surface temperature while increasing lubrication, reduce heating, extend the service life of gear pump, and balancing axial floating power, reduce abrasion；Introduce hydraulic oil to equal with pumping out hydraulic fluid port pressure in arc seal groove 8 by oil groove 10 in the middle part of two, the most quickly respond along with the change of oil-out pressure from side plate 1 can be made, it is achieved float, keep axial and hydraulic radial dynamic balance.
Claims (3)
1. a side plate of high pressure gear pump, side plate is provided with two axis holes, two middle side parts of side plate were equipped with oil groove, in the middle part of side plate working face, both sides are equipped with compensating groove, it is provided with arc seal groove, it is characterised in that the outer end diameter that each axis hole is corresponding is less than the external diameter of its both sides in axis hole periphery, the side plate back side two.
2. a kind of side plate of high pressure gear pump as claimed in claim 1, it is characterized in that being arranged with two on side plate low-pressure side working face draws oil groove, two to draw oil groove corresponding with respective axis hole, and each to draw oil groove the most triangular in shape, and width and the degree of depth of drawing oil groove are all gradually reduced in the middle part of side plate by side end.
3. a kind of side plate of high pressure gear pump as claimed in claim 1 or 2, it is characterised in that be arranged with at the back side, side plate high-pressure side and connected oil groove in the middle part of oil groove two with arc seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214205.4U CN205559271U (en) | 2016-03-21 | 2016-03-21 | High -pressure gear pump curb plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214205.4U CN205559271U (en) | 2016-03-21 | 2016-03-21 | High -pressure gear pump curb plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559271U true CN205559271U (en) | 2016-09-07 |
Family
ID=56815175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620214205.4U Expired - Fee Related CN205559271U (en) | 2016-03-21 | 2016-03-21 | High -pressure gear pump curb plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425838A (en) * | 2018-04-13 | 2018-08-21 | 合肥长源液压股份有限公司 | A kind of gear oil pump reducing gear force in radial |
| CN109653868A (en) * | 2019-01-23 | 2019-04-19 | 福建江夏学院 | A kind of high pressure integration pump |
-
2016
- 2016-03-21 CN CN201620214205.4U patent/CN205559271U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425838A (en) * | 2018-04-13 | 2018-08-21 | 合肥长源液压股份有限公司 | A kind of gear oil pump reducing gear force in radial |
| CN108425838B (en) * | 2018-04-13 | 2024-03-19 | 合肥长源液压股份有限公司 | Gear oil pump capable of reducing radial force borne by gear |
| CN109653868A (en) * | 2019-01-23 | 2019-04-19 | 福建江夏学院 | A kind of high pressure integration pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20200321 |