CN219795533U - Oil pump with seal structure - Google Patents
Oil pump with seal structure Download PDFInfo
- Publication number
- CN219795533U CN219795533U CN202321020745.5U CN202321020745U CN219795533U CN 219795533 U CN219795533 U CN 219795533U CN 202321020745 U CN202321020745 U CN 202321020745U CN 219795533 U CN219795533 U CN 219795533U
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- China
- Prior art keywords
- ring
- oil pump
- sealing ring
- sealing
- sealing washer
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 152
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 12
- 230000008602 contraction Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 33
- 239000010720 hydraulic oil Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses an oil pump with a sealing structure, which comprises an oil pump body, wherein a detachable sealing device is arranged on the side surface of the oil pump body, the sealing device comprises a mounting plate, a sealing ring and a connecting assembly, the connecting assembly comprises a connecting rod, a sliding rod and a contraction spring, the connecting rod, the sliding rod and the contraction spring are arranged on the inner side wall of the mounting plate, and an outer sealing ring and an inner sealing ring which are coaxial are arranged on the inner side wall of the sealing ring; the output shaft that the oil pump body is rotatory bumps with outer sealing washer, interior sealing washer, and outer sealing washer, interior sealing washer take place deformation, and annular, through-hole and stacking groove are the space of supplying outer sealing washer, interior sealing washer deformation, can recover after outer sealing washer, interior sealing washer deformation, avoid in inseparable space, and outer sealing washer, interior sealing washer deformation do not recover, lead to the clearance grow between outer sealing washer, interior sealing washer and the output shaft, and annular, stacking inslot also can pile up impurity, avoid piling up impurity increase frictional force, damage outer sealing washer's life-span.
Description
Technical Field
The utility model belongs to the technical field of servo oil pumps, and particularly relates to an oil pump with a sealing structure.
Background
The servo hydraulic oil pump is one of the oil pumps, is a hydraulic pump driven by a servo motor, is widely used in the aspect of servo hydraulic systems with high energy consumption and urgent need of energy saving transformation such as injection molding, die casting, hydraulic engineering machinery and the like, and has been disclosed in the Chinese patent application number of patent application No. CN202123446277.1, and is a high-pressure resistant hydraulic oil pump which is a disclosed device.
Various faults can occur after the servo hydraulic oil pump is used for a period of time, one of the faults is that the tightness of an oil seal of the hydraulic oil pump is reduced, an output shaft of the hydraulic oil pump rotates, a collision can occur between the rotating output shaft and the oil seal on a tiny layer, a gap between the output shaft and the oil seal is enlarged, impurities are easily accumulated, the service life of the oil seal is influenced, and the tightness is reduced.
When the existing hydraulic oil pump is used, collision can occur between the output shaft and the oil seal on a tiny layer, the gap between the output shaft and the oil seal is enlarged, and the problem of tightness is reduced.
Disclosure of Invention
The utility model aims to provide an oil pump with a sealing structure, which solves the problem that the output shaft and an oil seal can collide on a tiny layer in the prior art, the gap between the output shaft and the oil seal is enlarged, and the sealing performance is reduced.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an oil pump with seal structure, includes the oil pump body, the side of oil pump body is equipped with dismantled and assembled sealing device, sealing device includes mounting panel, sealing ring and coupling assembling, coupling assembling is including installing connecting rod, slide bar and the shrink spring on the mounting panel inside wall, be equipped with coaxial outer sealing washer and interior sealing washer on the inside wall of sealing ring, be equipped with sealing washer on the sealing ring, the annular has been seted up on the outer sealing washer.
Preferably, a stabilizing plate is welded on the side of the mounting plate, and a fastening screw rod penetrates through the stabilizing plate.
Preferably, the connecting rod is of a bending shape, a round hole for the sliding rod to penetrate is formed in the middle of the connecting rod, one end of the sliding rod is of a round ball shape, the sliding rod penetrates through the contraction spring, and the contraction spring is arranged between the connecting rod and the sealing ring.
Preferably, the sealing ring comprises a fixed ring and a circular ring block, the inner diameters of the fixed ring and the circular ring block are the same, the end part of the sliding rod is connected with the fixed ring, the outer sealing ring is arranged on the inner side wall of the fixed ring, the inner sealing ring is arranged on the inner side wall of the circular ring block, and the sealing gasket is arranged on the circular ring block.
Preferably, the fixing ring is provided with an annular limiting groove matched with the outer sealing ring.
Preferably, the fixing ring is provided with an annular mounting groove, the inner sealing ring is provided with a limiting ring with an integrated structure, and the limiting ring is matched with the mounting groove.
Preferably, the cross section of the ring groove is in a right triangle shape, through holes which are uniformly distributed are formed in the round edge position of the outer sealing ring, and the through holes are in an elliptic shape.
Preferably, the cross section of the inner sealing ring is isosceles trapezoid, the inclined surface of the inner sealing ring is curved, and the inclined surface of the inner sealing ring is provided with stacking grooves which are uniformly distributed.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the sealing ring plays a role in limiting the output shaft of the oil pump body, the rotating output shaft of the oil pump body collides with the outer sealing ring and the inner sealing ring, the outer sealing ring and the inner sealing ring are deformed under vibration force on a tiny layer, the annular groove, the through hole and the stacking groove are spaces for supplying deformation of the outer sealing ring and the inner sealing ring, the outer sealing ring and the inner sealing ring can recover after deformation, the situation that gaps between the outer sealing ring and the inner sealing ring and the output shaft become large due to the fact that the outer sealing ring and the inner sealing ring are not recovered after deformation under collision acting force of the output shaft in a tight space is avoided, impurities can be stacked in the annular groove and the stacking groove, friction force is increased due to stacked impurities is avoided, and the service life of the outer sealing ring is damaged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic side view of a mounting plate of the present utility model;
FIG. 3 is a schematic cross-sectional view of a seal ring of the present utility model;
FIG. 4 is a schematic top view of the inner seal ring of the present utility model in a horizontal position;
in the figure: 1. an oil pump body; 2. a mounting plate; 3. a connecting rod; 4. a slide bar; 5. a retraction spring; 6. a seal ring; 7. an outer seal ring; 8. an inner seal ring; 21. a stabilizing plate; 61. a sealing gasket; 71. a ring groove; 72. a through hole; 81. a limiting ring; 82. a stacking groove; 211. and (5) fastening a screw.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 4, the present utility model provides a technical solution: the oil pump with sealing structure comprises an oil pump body 1, a detachable mounting plate 2, a sealing ring 6, a connecting rod 3, a sliding rod 4 and a contraction spring 5 which are arranged on the inner side wall of the mounting plate 2 are arranged on the side surface of the oil pump body 1, the mounting plate 2 is of a frame structure, the sealing ring 6 is coaxial with the oil pump body 1, a coaxial outer sealing ring 7 and an inner sealing ring 8 are arranged on the inner side wall of the sealing ring 6, the outer sealing ring 7 and the inner sealing ring 8 play a sealing role, a sealing gasket 61 is arranged on the sealing ring 6, a ring groove 71 is arranged on the outer sealing ring 7, the mounting plate 2 is arranged on the oil pump body 1, the sealing ring 6 is coaxially sleeved on the outer side of an output shaft of the oil pump body 1, the outer sealing ring 7 and the inner sealing ring 8 are attached to the output shaft of the oil pump body 1, when the output shaft of the oil pump body 1 rotates collides with the outer sealing ring 7 and the inner sealing ring 8, the outer sealing ring 7 and the inner sealing ring 8 are deformed under the vibration force on a micro level, the sealing ring 6 limits the outer sealing ring 7 and the inner sealing ring 8, the outer sealing ring 7 is provided with a ring groove 71, the opposite surfaces of the inner sealing ring 8 are in a bending shape, a space for supplying the deformation of the outer sealing ring 7 and the inner sealing ring 8 is arranged between the sealing ring 6 and the output shaft, the outer sealing ring 7 and the inner sealing ring 8 can be restored after being deformed, the situation that the outer sealing ring 7 and the inner sealing ring 8 are not restored after being deformed under the collision force of the output shaft in a tight space is avoided, the gap between the outer sealing ring 7, the inner sealing ring 8 and the output shaft is enlarged, impurities can be accumulated in the ring groove 71, the friction force is prevented from being increased by accumulating the impurities, and the service life of the outer sealing ring 7 is damaged; when the outer sealing ring 7 and the inner sealing ring 8 receive the collision acting force of the output shaft, the sealing ring 6 transmits the collision acting force to the shrinkage spring 5, the shrinkage spring 5 is always in a shrinkage state, the shrinkage spring 5 does not generate macroscopic shrinkage deformation, the shrinkage spring 5 converts the collision acting force into elasticity, and the shrinkage spring 5 buffers the acting force, so that the outer sealing ring 7, the inner sealing ring 8 and the output shaft are tightly attached.
In this embodiment, the side of the mounting plate 2 is welded with a fixing plate 21, a fastening screw 211 penetrates through the fixing plate 21, the fixing plate 21 is attached to the oil pump body 1, and the fastening screw 211 plays a role in fastening the fixing plate 21 and the oil pump body 1.
In this embodiment, connecting rod 3 is crooked shape, the round hole that supplies slide bar 4 to run through has been seted up to the intermediate position of connecting rod 3, slide bar 4 can follow self axial displacement, the one end of slide bar 4 is the ball shape, slide bar 4 runs through shrink spring 5, shrink spring 5 installs between connecting rod 3, sealing ring 6, outer sealing ring 7, interior sealing ring 8 receives the collision effort of output shaft, shrink spring 5 does not take place macroscopic shrink deformation, shrink spring 5 changes the collision effort into elasticity, shrink spring 5 buffering effort, make outer sealing ring 7, interior sealing ring 8 and output shaft laminating inseparable.
In this embodiment, sealing ring 6 includes solid fixed ring and ring piece, sealing ring 6 is laminated with oil pump body 1, gu fixed ring and ring piece's internal diameter is the same, slide bar 4's tip is connected with solid fixed ring, outer sealing washer 7 installs the inside wall at solid fixed ring, interior sealing washer 8 installs the inside wall at ring piece, gu set up on the fixed ring with outer sealing washer 7 complex annular spacing groove, set up annular mounting groove on the solid fixed ring, be equipped with the spacing ring 81 of integral structure on the interior sealing washer 8, spacing ring 81 cooperates with the mounting groove, removable outer sealing washer 7, interior sealing washer 8, sealing washer 61 installs on the ring piece, removable sealing washer 61.
In this embodiment, the cross section of the ring groove 71 is in a right triangle shape, the round edge of the outer seal ring 7 is provided with uniformly distributed through holes 72, the through holes 72 are in an oval shape, the cross section of the inner seal ring 8 is in an isosceles trapezoid shape, the inclined surface of the inner seal ring 8 is in a curved shape, the inclined surface of the inner seal ring 8 is provided with uniformly distributed stacking grooves 82, when the output shaft of the oil pump body 1 rotates collides with the outer seal ring 7 and the inner seal ring 8, the outer seal ring 7 and the inner seal ring 8 are deformed under vibration force on a tiny layer, the ring groove 71, the through holes 72 and the stacking grooves 82 are spaces for supplying deformation of the outer seal ring 7 and the inner seal ring 8, the outer seal ring 7 and the inner seal ring 8 can be restored after being deformed, so that the clearance between the outer seal ring 7, the inner seal ring 8 and the output shaft is not restored after being deformed under the collision force of the output shaft, impurities can be stacked in the ring groove 71 and the stacking grooves 82, the impurities can be prevented from being stacked, the stacked impurities can be prevented from increasing friction force, and the service life of the outer seal ring 7 is damaged.
In summary, the sealing ring 6 plays a role in limiting the output shaft of the oil pump body 1, the rotating output shaft of the oil pump body 1 collides with the outer sealing ring 7 and the inner sealing ring 8, the outer sealing ring 7 and the inner sealing ring 8 are deformed by vibration force on a tiny level, the annular groove 71, the through hole 72 and the stacking groove 82 are spaces for supplying deformation of the outer sealing ring 7 and the inner sealing ring 8, the outer sealing ring 7 and the inner sealing ring 8 can be restored after being deformed, the contraction spring 5 can buffer collision acting force, the situation that the outer sealing ring 7 and the inner sealing ring 8 are not restored after being deformed by the collision acting force of the output shaft in a tight space is avoided, gaps between the outer sealing ring 7 and the output shaft become large, impurities can be stacked in the annular groove 71 and the stacking groove 82, the friction force is avoided from being increased by stacking the impurities, and the service life of the outer sealing ring 7 is damaged.
Although embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Oil pump with seal structure, including oil pump body (1), its characterized in that: the side of oil pump body (1) is equipped with dismantled and assembled sealing device, sealing device includes mounting panel (2), sealing ring (6) and coupling assembling, coupling assembling is including installing connecting rod (3), slide bar (4) and shrink spring (5) on mounting panel (2) inside wall, be equipped with coaxial outer sealing washer (7) and interior sealing washer (8) on the inside wall of sealing ring (6), be equipped with sealing washer (61) on sealing ring (6), annular (71) have been seted up on outer sealing washer (7).
2. An oil pump with a sealing structure according to claim 1, characterized in that: the side of the mounting plate (2) is welded with a stabilizing plate (21), and a fastening screw (211) penetrates through the stabilizing plate (21).
3. An oil pump with a sealing structure according to claim 1, characterized in that: the connecting rod (3) is of a bent shape, a round hole for the sliding rod (4) to penetrate is formed in the middle position of the connecting rod (3), one end of the sliding rod (4) is of a round ball shape, the sliding rod (4) penetrates through the shrinkage spring (5), and the shrinkage spring (5) is arranged between the connecting rod (3) and the sealing ring (6).
4. An oil pump with a sealing structure according to claim 1, characterized in that: the sealing ring (6) comprises a fixed ring and a circular ring block, the inner diameters of the fixed ring and the circular ring block are the same, the end part of the sliding rod (4) is connected with the fixed ring, the outer sealing ring (7) is installed on the inner side wall of the fixed ring, the inner sealing ring (8) is installed on the inner side wall of the circular ring block, and the sealing gasket (61) is installed on the circular ring block.
5. The oil pump with sealing structure according to claim 4, wherein: an annular limiting groove matched with the outer sealing ring (7) is formed in the fixing ring.
6. The oil pump with sealing structure according to claim 4, wherein: annular mounting grooves are formed in the fixing rings, limiting rings (81) of an integrated structure are arranged on the inner sealing rings (8), and the limiting rings (81) are matched with the mounting grooves.
7. An oil pump with a sealing structure according to claim 1, characterized in that: the cross section of the ring groove (71) is in a right triangle shape, through holes (72) which are uniformly distributed are formed in the round edge position of the outer sealing ring (7), and the through holes (72) are in an oval shape.
8. An oil pump with a sealing structure according to claim 1, characterized in that: the cross section of the inner sealing ring (8) is in an isosceles trapezoid shape, the inclined surface of the inner sealing ring (8) is in a bent shape, and stacking grooves (82) which are uniformly distributed are formed in the inclined surface of the inner sealing ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020745.5U CN219795533U (en) | 2023-04-28 | 2023-04-28 | Oil pump with seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020745.5U CN219795533U (en) | 2023-04-28 | 2023-04-28 | Oil pump with seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795533U true CN219795533U (en) | 2023-10-03 |
Family
ID=88151752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321020745.5U Active CN219795533U (en) | 2023-04-28 | 2023-04-28 | Oil pump with seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795533U (en) |
-
2023
- 2023-04-28 CN CN202321020745.5U patent/CN219795533U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |