CN214064539U - Novel sealed oil pump - Google Patents
Novel sealed oil pump Download PDFInfo
- Publication number
- CN214064539U CN214064539U CN202022482935.1U CN202022482935U CN214064539U CN 214064539 U CN214064539 U CN 214064539U CN 202022482935 U CN202022482935 U CN 202022482935U CN 214064539 U CN214064539 U CN 214064539U
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- sealing
- oil pump
- rotor
- seal groove
- sealing ring
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Abstract
The utility model discloses a novel sealed oil pump, including casing, inner rotor, external rotor and pump cover, the external rotor setting is in the casing, and the inner rotor setting is in the external rotor, and the inner rotor is connected with the rotor spindle, the corresponding position of the contact surface of casing and pump cover is equipped with the seal groove, the cross sectional shape of seal groove is the wide trapezoidal of falling of the narrow bottom of opening, is equipped with the sealing washer in the seal groove. The utility model discloses a sealing washer extrusion is advanced down trapezoidal seal groove, and the sealing washer is sealed by the gap of extrusion between to casing and the pump cover, owing to receive the extrusion of seal groove and clamp the effect, the sealing washer is difficult for producing situations such as slide, flexible, and consequently the leakproofness is better, is difficult for producing the inefficacy after long-term the use, and the oil pump is difficult for oil leakage, oil impregnate, has improved the effective life of oil pump.
Description
Technical Field
The utility model relates to an oil pump technical field, in particular to novel sealed oil pump.
Background
The oil pump is a device which forcibly presses and sends engine oil to the moving surfaces of various parts of an engine after the engine oil is increased to a certain pressure, and is widely applied to a lubricating system. However, the sealing effect of the seal ring is reduced due to fatigue, deformation, and the like of the seal ring, and the oil pump is prone to oil leakage, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel sealed oil pump, its advantage is that the leakproofness is good, improves the effective seal life-span of oil pump.
The above object of the utility model is realized through following technical scheme, a novel sealed oil pump, including casing, inner rotor, external rotor and pump cover, the external rotor setting is in the casing, and the inner rotor setting is in the external rotor, and the inner rotor is connected with the rotor spindle, the corresponding position of the contact surface of casing and pump cover is equipped with the seal groove, the cross sectional shape of seal groove is the wide trapezoidal of falling of the narrow bottom of opening, is equipped with the sealing washer in the seal groove.
Through the technical scheme, when the shell and the pump cover are installed together, the sealing ring is extruded in the sealing groove, the sealing ring adapts to the shape of the sealing groove, the sealing groove is in an inverted trapezoid shape with a narrow opening and a wide bottom, so that the upper part and the lower part of the sealing ring respectively enter the sealing groove on the shell or the pump cover and are correspondingly deformed, the sealing ring is extruded to seal a gap between the shell and the pump cover, the sealing ring is not easy to slide, stretch and contract and the like due to the extrusion and clamping effects of the sealing groove, the sealing ring is better in sealing performance, failure is not easy to occur after long-term use, oil leakage and oil seepage of the oil pump are avoided, and the effective service life of the oil pump is prolonged.
The utility model discloses further set up as, the cross sectional shape of sealing washer is circular or oval or rectangle.
Through the technical scheme, firstly, the round or oval or rectangular sealing ring is easy to obtain, and secondly, the round or oval or rectangular sealing ring deforms uniformly when being accepted, so that the round or oval or rectangular sealing ring is uniformly filled in the sealing groove.
The utility model discloses further set up as, sealed pad is made by the butadiene acrylonitrile rubber material.
Through the technical scheme, the nitrile rubber has better strength, elasticity and durability, and can keep the long-term effective sealing of the oil pump.
The utility model discloses further set up to, the sealing washer is just facing to be equipped with the constant head tank on two faces of casing and pump cover, is equipped with the beaded finish in the constant head tank.
Through the technical scheme, on one hand, the reinforcing ring is arranged to position the sealing ring, so that the position of the sealing ring in the sealing groove is stable and is not easy to rotate or move; on the other hand, due to the left and right sides of the reinforcing ring, the sealing ring is filled to the two sides of the bottom of the sealing groove after being extruded, and the stability and the compression degree of the sealing ring are improved.
The utility model discloses further set up as, the cross-section of beaded finish is rectangle or circular.
The utility model discloses further set up as, the cross sectional shape of beaded finish is triangle-shaped and fixes the bottom at the seal groove.
To sum up, the beneficial effects of the utility model are that:
1. the sealing ring is extruded into the inverted trapezoidal sealing groove, so that the sealing performance of the sealing ring on the oil pump shell and the pump cover is improved;
2. through setting up the beaded finish for aggravation when the sealing washer receives the extrusion moves to seal groove bottom both sides, improves the degree and the stability that compress tightly of seal groove.
Drawings
Fig. 1 is an exploded view of the structure of an embodiment of the present invention;
fig. 2 is a partial cross-sectional view of a seal groove structure according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a circular seal groove in a first embodiment of the present invention;
fig. 4 is a cross-sectional view of an elliptical sealing groove according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a rectangular sealing groove according to an embodiment of the present invention;
fig. 6 is a partial cross-sectional view of a sealing groove structure according to a second embodiment of the present invention;
fig. 7 is a partial cross-sectional view of a third embodiment of the present invention showing a sealing groove structure.
In the figure, 1, a housing; 2. an inner rotor; 3. an outer rotor; 4. a pump cover; 5. a rotor shaft; 6. a sealing groove; 7. a seal ring; 701. positioning a groove; 8. a reinforcement ring.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The first embodiment is as follows: referring to fig. 1-5, a novel sealed oil pump comprises a shell 1, an inner rotor 2, an outer rotor 3 and a pump cover 4, wherein the outer rotor 3 is arranged in the shell 1, the inner rotor 2 is arranged in the outer rotor 3, the inner rotor 2 is connected with a rotor shaft 5, a sealing groove 6 is arranged at a position corresponding to a contact surface of the shell 1 and the pump cover 4, the cross section of the sealing groove 6 is in a shape of an inverted trapezoid with a narrow opening and a wide bottom, and a sealing ring 7 is arranged in the sealing groove 6. When the casing 1 and the pump cover 4 are installed together, the sealing ring 7 is extruded in the sealing groove 6, the sealing ring 7 adapts to the shape of the sealing groove 6, the sealing groove 6 is in an inverted trapezoid shape with a narrow opening and a wide bottom, so the upper part and the lower part of the sealing ring 7 respectively enter the sealing groove 6 on the casing 1 or the pump cover 4 and are correspondingly deformed, the sealing ring 7 is extruded to seal a gap between the casing 1 and the pump cover 4, the sealing ring 7 is not easy to slide, stretch and retract and the like due to the extrusion and clamping action of the sealing groove 6, the sealing ring 7 is better in sealing performance, and is not easy to lose efficacy after long-term use, oil leakage and oil seepage of the oil pump are avoided, and the effective service life of the oil pump is prolonged.
The cross section of the sealing ring 7 is circular, elliptical or rectangular. Firstly, the circular, elliptical or rectangular sealing ring 7 is easily available, and secondly, the circular, elliptical or rectangular sealing ring 7 deforms more uniformly when received, and thus is uniformly filled in the sealing groove 6. The sealing gasket is made of a butadiene-acrylonitrile rubber material, and the butadiene-acrylonitrile rubber has good strength, elasticity and durability, and can keep long-term effective sealing of the oil pump.
Example two: referring to fig. 1-6, on the basis of the first embodiment, positioning grooves 701 are formed on two surfaces of the sealing ring 7, which face the casing 1 and the pump cover 4, and reinforcing rings 8 are arranged in the positioning grooves 701. On one hand, the reinforcing ring 8 is arranged to position the sealing ring 7, so that the position of the sealing ring 7 in the sealing groove 6 is stable and is not easy to rotate or move; on the other hand, due to the left and right sides of the reinforcing ring 8, the sealing ring 7 is filled to the two sides of the bottom of the sealing groove 6 after being extruded, and the stability and the compression degree of the sealing ring 7 are improved. In this embodiment, the cross section of the reinforcement ring 8 is rectangular or circular, and the cross section of the reinforcement ring 8 shown in fig. 6 is circular.
Example three: the difference from the first embodiment is that the cross-sectional shape of the stiffener ring 8 is triangular and fixed to the bottom of the seal groove 6, and the stiffener ring 8 is machined into the seal groove 6.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (3)
1. A novel sealed oil pump comprises a shell (1), an inner rotor (2), an outer rotor (3) and a pump cover (4), wherein the outer rotor (3) is arranged in the shell (1), the inner rotor (2) is arranged in the outer rotor (3), the inner rotor (2) is connected with a rotor shaft (5), it is characterized in that a sealing groove (6) is arranged at the corresponding position of the contact surface of the shell (1) and the pump cover (4), the section of the sealing groove (6) is in an inverted trapezoid shape with a narrow opening and a wide bottom, a sealing ring (7) is arranged in the sealing groove (6), the cross section of the sealing ring (7) is circular, elliptical or rectangular, the sealing ring (7) is made of a butadiene acrylonitrile rubber material, and positioning grooves (701) are formed in two surfaces, which face the shell (1) and the pump cover (4), of the sealing ring (7), and reinforcing rings (8) are arranged in the positioning grooves (701).
2. The new sealed oil pump according to claim 1, characterized in that the cross section of the reinforcement ring (8) is rectangular or circular.
3. The new sealed oil pump according to claim 1, characterized in that the cross-sectional shape of the reinforcement ring (8) is triangular and is fixed at the bottom of the sealing groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022482935.1U CN214064539U (en) | 2020-10-30 | 2020-10-30 | Novel sealed oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022482935.1U CN214064539U (en) | 2020-10-30 | 2020-10-30 | Novel sealed oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214064539U true CN214064539U (en) | 2021-08-27 |
Family
ID=77399106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022482935.1U Active CN214064539U (en) | 2020-10-30 | 2020-10-30 | Novel sealed oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214064539U (en) |
-
2020
- 2020-10-30 CN CN202022482935.1U patent/CN214064539U/en active Active
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