CN202007779U - High-pressure gear pump provided with rectangular oil inlet - Google Patents
High-pressure gear pump provided with rectangular oil inlet Download PDFInfo
- Publication number
- CN202007779U CN202007779U CN2011201200295U CN201120120029U CN202007779U CN 202007779 U CN202007779 U CN 202007779U CN 2011201200295 U CN2011201200295 U CN 2011201200295U CN 201120120029 U CN201120120029 U CN 201120120029U CN 202007779 U CN202007779 U CN 202007779U
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- Prior art keywords
- gear
- pump
- filler opening
- gear pump
- oil inlet
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- Expired - Fee Related
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Abstract
The utility model discloses a high-pressure gear pump provided with a rectangular oil inlet, which relates to hydraulic machines. The oil inlet is manufactured into a rectangular slot, the length of the slot is equal to the lengths of teeth or slightly smaller than the lengths of the teeth, the width of the oil inlet is reduced to the utmost extent under the condition of guaranteeing an unchanged flow zone of the oil inlet, a suction angle is reduced, radial stress on a gear shaft is decreased, the service life of a bearing is prolonged, non-failure operation time of the high-pressure gear pump is prolonged, repair cost is lowered, economic benefit is increased, and the high-pressure gear pump is simple and convenient in manufacture and convenient to be popularized and utilized.
Description
Technical field
The utility model relates to a kind of hydraulic machinery, especially a kind of high-pressure gear pump with rectangle filler opening.
Background technique
Constructional engineering machinery, handling machinery etc. require supporting high-pressure gear pump, require rated pressure will reach 23MPa, and actual working pressure surpasses 25MPa.The filler opening of high-pressure gear pump is a circular port at present, and it is bigger that it sucks the angle, so the radial force that gear shaft is subjected to is just big, and the radial force that bearing bears is big, and working life is short.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of high-pressure gear pump with rectangle filler opening, and filler opening is made into the rectangle slotted hole, the length of slotted hole and the equal in length of tooth.
The utility model is achieved by the following technical solution: a kind of high-pressure gear pump with rectangle filler opening, this gear pump adopts the two-piece type structure, be the inner chamber that driving gear, driven gear, two floating side plates and two W type seal rings are installed in the pump housing, the pump housing and pump cover connect to form simply connected or two or multi-gear pump by bolt and locating stud; The gear shaft of described driving gear and driven gear is installed on the pump housing and the pump cover by sliding bearing respectively; Described driving gear is connected with power source by joining shaft, joining shaft by Bearing Installation on pump cover; Filler opening and oil outlet are arranged on the pump housing; It is characterized in that: described filler opening is the rectangle slotted hole.The length of rectangle slotted hole is equal to or slightly less than the length of the driving gear and the driven tooth gear teeth.
Good effect of the present utility model is:
1, filler opening is the rectangle slotted hole, and the minimum that its width is done alleviates the radial force that gear shaft is subjected to, and prolongs the working life of bearing, increases the time between failures of high-pressure gear pump, reduces maintenance cost, increases economic efficiency.
2, making is simple, convenient, is convenient to promote the use of.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A--A sectional drawing of Fig. 1.
Fig. 3 is the B--B sectional drawing of Fig. 2.
Among the figure: 1, joining shaft, 2, bearing, 3, pump cover, 4, the pump housing, 5, driving gear, 6, driven gear, 7,
Bolt, 8, sliding bearing, 9, floating side plate, 10, W type seal ring, 11, filler opening, 12, oil outlet.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3: a kind of high-pressure gear pump with rectangle filler opening, this gear pump adopts the two-piece type structure, be the inner chamber that driving gear 5, driven gear 6, two floating side plates 9 and two W type seal rings 10 are installed in the pump housing 4, the pump housing 4 and pump cover 3 connect by bolt 7 and locating stud and form simply connected or two or multi-gear pump; The gear shaft of described driving gear 5 and driven gear 6 is installed on the pump housing 4 and the pump cover 3 by sliding bearing 8 respectively; Described driving gear 5 is connected with power source by joining shaft 1, and joining shaft 1 is installed on the pump cover 3 by bearing 2; Filler opening 11 and oil outlet 12 are arranged on the pump housing 4; It is characterized in that: described filler opening 11 and oil outlet 12 are the rectangle slotted hole.
The length of described filler opening 11 and oil outlet 12 rectangle slotted holes is equal to or slightly less than the length of driving gear 5 and driven gear 6 teeth.
Filler opening 11 adopts the rectangle slotted holes, and according to the gear pump working principle, the formula of the radial force Fpy that produces along the circumference of gear hydraulic coupling is:
Filler opening is the rectangle slotted hole, guaranteeing to dwindle the width of filler opening to greatest extent under the constant situation of filler opening flow velocity, reduces to suck the angle
Alleviate the radial force that gear shaft is subjected to, prolong the working life of bearing, increase the time between failures of high-pressure gear pump, reduce maintenance cost, increase economic efficiency.Make simply, conveniently, be convenient to promote the use of.
Claims (3)
1. high-pressure gear pump with rectangle filler opening, this gear pump adopts the two-piece type structure, be the inner chamber that driving gear (5), driven gear (6), two floating side plates (9) and two W type seal rings (10) are installed in the pump housing (4), the pump housing (4) and pump cover (3) connect to form simply connected or two or multi-gear pump by the sharp locating stud of bolt (7); The gear shaft of described driving gear (5) and driven gear (6) is installed on the pump housing (4) and the pump cover (3) by sliding bearing (8) respectively; Described driving gear (5) is connected with power source by joining shaft (1), and joining shaft (1) is installed on the pump cover (3) by bearing (2); Filler opening (11) and oil outlet (12) are arranged on the pump housing (4); It is characterized in that: described filler opening (11) is the rectangle slotted hole.
2. the high-pressure gear pump with rectangle filler opening according to claim 1 is characterized in that: the length of described rectangle slotted hole equals the length of driving gear (5) and driven gear (6) tooth.
3. the high-pressure gear pump with rectangle filler opening according to claim 1 is characterized in that: the length of described rectangle slotted hole is slightly less than the length of driving gear (5) and driven gear (6) tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201200295U CN202007779U (en) | 2011-04-13 | 2011-04-13 | High-pressure gear pump provided with rectangular oil inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201200295U CN202007779U (en) | 2011-04-13 | 2011-04-13 | High-pressure gear pump provided with rectangular oil inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007779U true CN202007779U (en) | 2011-10-12 |
Family
ID=44749436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201200295U Expired - Fee Related CN202007779U (en) | 2011-04-13 | 2011-04-13 | High-pressure gear pump provided with rectangular oil inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141036A (en) * | 2011-04-13 | 2011-08-03 | 徐州科源液压有限公司 | High-pressure gear pump with rectangular oil inlet |
-
2011
- 2011-04-13 CN CN2011201200295U patent/CN202007779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141036A (en) * | 2011-04-13 | 2011-08-03 | 徐州科源液压有限公司 | High-pressure gear pump with rectangular oil inlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XUZHOU KEYUAN HYDRAULICS CO., LTD. Free format text: FORMER NAME: XUZHOU KEYUAN HYDRAULIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Ganjiang road Copper Mt. District 221116 Jiangsu city of Xuzhou province No. 6 Patentee after: Xuzhou Keyuan Hydraulics Co., Ltd. Address before: Ganjiang road Copper Mt. District 221116 Jiangsu city of Xuzhou Province, No. 6 Patentee before: Xuzhou Keyuan Hydraulic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |