CN205401155U - A inhale formula oil pump certainly for in hydraulic retarber - Google Patents
A inhale formula oil pump certainly for in hydraulic retarber Download PDFInfo
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- CN205401155U CN205401155U CN201620155680.9U CN201620155680U CN205401155U CN 205401155 U CN205401155 U CN 205401155U CN 201620155680 U CN201620155680 U CN 201620155680U CN 205401155 U CN205401155 U CN 205401155U
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- housing
- oil
- impeller
- pump
- retarder
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Abstract
The utility model discloses an inhale formula oil pump certainly for in hydraulic retarber, including the pump body with arrange impeller (3) of the pump body in, the pump body is formed by connecting first casing (1) and second casing (2) of relative setting, be equipped with inlet port (1.1) on first casing (1), be equipped with oil outlet (2.1) on second casing (2), first casing (1) is connected the back with second casing (2) and is formed circular cavity body (4) and oil duct (5) of intercommunication inlet port (1.1) and oil outlet (2.1) that hold impeller (3), be equipped with on circular cavity body (4) circumference wall between inlet port (1.1) and oil outlet (2.1) and stick out in boss (6) of circumference wall, the convex surfaces of boss (6) is concave arc face (6.1) coaxial with impeller (3). After adopting this kind of structure, an inhale formula oil pump certainly for in hydraulic retarber work efficiency is high, inhales effectually certainly.
Description
Technical field
This utility model relates to Retarder field, specifically be a kind of for the self-priming oil pump in Retarder.
Background technology
Retarder is a kind of auxiliary brake device for automobile, is mainly used in motorbus, urban public traffic vehicles, heavy truck and military vehicle；Along with user's raising to car load travelling brake security requirement, car load coupling Retarder has become trend.
Main shaft is the vitals in Retarder, plays the effect that the brake force of Retarder is delivered to automobile gearbox.When Retarder is in off working state, its main shaft, also with the spindle operation of change speed gear box, thus needs to be sucted from the grease chamber of Retarder by oil scavenge pump, is transferred to outside and is lubricated and lubricates other parts, such as bearing, oil sealing.But oil scavenge pump of the prior art does not arrange the barrier structure preventing gas from circulating between fuel feed hole and oil outlet, so can produce following deficiency: oil scavenge pump when oil suction early stage aerofluxus, gas can at oil pocket internal recycle, thus gas efflux time is long, causing that speed of oil absorption is relatively slow, self-priming effect is poor.
Utility model content
It is high that technical problem to be solved in the utility model is to provide a kind of work efficiency, the self-priming oil pump being used in Retarder that self-priming is effective.
For solving above-mentioned technical problem, this utility model is for the self-priming oil pump in Retarder, including the pump housing and the impeller being placed in the pump housing；The described pump housing is formed by connecting by the first housing being oppositely arranged and the second housing；Described first housing is provided with fuel feed hole；Described second housing is provided with oil outlet；Described first housing and the second housing form the oil duct of the circular cavity holding impeller and connection fuel feed hole and oil outlet after connecting；Described oil duct is arranged along the circumferential wall annular of circular cavity；Circular cavity circumferential wall between fuel feed hole and oil outlet is provided with the boss protruding from circumferential wall；The projecting surface of described boss is the cancave cambered surface coaxial with impeller.
The radius of described cancave cambered surface is consistent with the radius of impeller.
What be provided with dynamic wheel rotation on described second housing rotates the through hole that axle stretches into.
It is provided with the lower deep gouge of accommodating oil seal collar towards the side of hull outside at through hole.
The binding face of the first housing and the second housing is provided with the sealing structure preventing oil from overflowing from binding face.
Described sealing structure includes the circular groove set on the second housing and the sealing ring being placed in circular groove；Described circular groove is coaxial with circular cavity, and the radius of circular groove is more than the radius of circular cavity.
After adopting above structure, this utility model is compared with prior art, have the advantage that 1, cavity perisporium between fuel feed hole and oil outlet is provided with the circular arc boss protruding from perisporium, and the radius of the cancave cambered surface on circular arc boss is consistent and coaxial with the radius of impeller, so when oil suction early stage aerofluxus, circular arc boss plays the effect preventing gas at oil pocket internal recycle, and gas can be made to discharge from oil outlet smoothly, improve self-priming effect, increase the work efficiency of oil scavenge pump；2, oil scavenge pump, simple in construction can be constituted by the first housing, the second housing and impeller, reduce cost.
Accompanying drawing explanation
Fig. 1 is this utility model exploded perspective view for the self-priming oil pump in Retarder.
Fig. 2 is this utility model assembling schematic diagram for the self-priming oil pump in Retarder.
Fig. 3 is that this utility model is for the structural representation of the first housing in the self-priming oil pump in Retarder.
Fig. 4 is that this utility model is for the structural representation of the second housing in the self-priming oil pump in Retarder.
Fig. 5 is that this utility model is for another visual angle schematic diagram of the second housing in the self-priming oil pump in Retarder.
Wherein: 1, the first housing；1.1, fuel feed hole；2, the second housing；2.1, oil outlet；2.2, through hole；2.4, lower deep gouge；2.3, circular groove；3, impeller；4, circular cavity；5, oil duct；6, boss；6.1, cancave cambered surface.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, utility model is described in more detail.
Shown in accompanying drawing 1 to accompanying drawing 5, this utility model is for the self-priming oil pump in Retarder, including the pump housing and the impeller 3 being placed in the pump housing；The described pump housing is formed by connecting by the first housing 1 being oppositely arranged and the second housing 2, concrete, it is possible to be spirally connected；Described first housing 1 is provided with fuel feed hole 1.1；Described second housing 2 is provided with oil outlet 2.1；Described first housing 1 forms the oil duct 5 of the circular cavity 4 holding impeller 3 and connection fuel feed hole 1.1 and oil outlet 2.1 with the second housing 2 after being connected；Described oil duct 5 includes the first oil groove 5.1 being located on the first housing 1 and the second oil groove 5.2 being located on the second housing 2, and after the first housing 1 and the second housing 2 connect, the first oil groove 5.1 and the second oil groove 5.2 cooperatively form oil duct 5；Described oil duct 5 is arranged along the circumferential wall annular of circular cavity 4；Circular cavity 4 circumferential wall between fuel feed hole 1.1 and oil outlet 2.1 is provided with the boss 6 protruding from circumferential wall；The projecting surface of described boss 6 is the cancave cambered surface 6.1 coaxial with impeller 3.
The radius of described cancave cambered surface 6.1 is consistent with the radius of impeller 3.
Described second housing 2 is provided with the through hole 2.2 that the rotation axle of impeller 3 rotation stretches into.
It is provided with the lower deep gouge 2.4 of accommodating oil seal collar towards the side of hull outside at through hole 2.2.So, at lower deep gouge 2.4 place, oil seal collar is installed, when so rotating when rotating axle, ensures the sealing of circular cavity 4.
The binding face of the first housing 1 and the second housing 2 is provided with the sealing structure preventing oil from overflowing from binding face.The sealing structure of the present embodiment includes the circular groove 2.3 being located on the second housing 2 and the sealing ring 7 being placed in circular groove 2.3；Described circular groove 2.3 is coaxial with circular cavity 4, and the radius of circular groove 2.3 is more than the radius of circular cavity 4.So, at circular groove 2.3 place, sealing ring is installed, thus can guarantee that the sealing of circular cavity 4, make self-priming effect improve.
Self-priming oil pump in Retarder is installed as follows with operation principle: when mounted, lower deep gouge 2.4 place is provided with oil seal collar, O can also be laid by lower deep gouge 2.4 place, through hole 2.2 is inserted in the rotation axle that impeller 3 rotates afterwards, and such oil seal collar, O coordinate the sealing ensureing circular cavity 4 when rotating axle when can rotate with rotation axle；Impeller 3 grafting on the rotating shaft and is positioned at circular cavity 4；Sealing ring 7 is placed in circular groove 2.3, the first housing 1 and the second housing 2 is fitted and is tightened with bolt, so, is provided with sealing ring at circular groove 2.3 place, thus can guarantee that the sealing of circular cavity 4.During work, rotating axle impeller 3 and rotate, during self-priming oil pump suction early stage aerofluxus, boss 6 plays the effect preventing gas at oil pocket internal recycle, gas can be made to discharge from oil outlet smoothly, improve self-priming effect, increase the work efficiency of oil scavenge pump.
This utility model is not limited to structures described above, in the ken that person of ordinary skill in the field possesses, it is also possible to make a variety of changes under the premise without departing from this utility model objective.
Claims (6)
1. for the self-priming oil pump in Retarder, including the pump housing and the impeller (3) being placed in the pump housing；The described pump housing is formed by connecting by the first housing (1) being oppositely arranged and the second housing (2)；Described first housing (1) is provided with fuel feed hole (1.1)；Described second housing (2) is provided with oil outlet (2.1)；Described first housing (1) forms the oil duct (5) of the circular cavity (4) holding impeller (3) and connection fuel feed hole (1.1) and oil outlet (2.1) with the second housing (2) after being connected；Described oil duct (5) is arranged along the circumferential wall annular of circular cavity (4)；It is characterized in that: circular cavity (4) circumferential wall between fuel feed hole (1.1) and oil outlet (2.1) is provided with the boss (6) protruding from circumferential wall；The projecting surface of described boss (6) is the cancave cambered surface (6.1) coaxial with impeller (3).
2. the self-priming oil pump being used in Retarder described in claim 1, it is characterised in that: the radius of described cancave cambered surface (6.1) is consistent with the radius of impeller (3).
3. described in claim 1 for the self-priming oil pump in Retarder, it is characterised in that: what described second housing (2) was provided with that impeller (3) rotates rotates the through hole (2.2) that axle stretches into.
4. described in claim 3 for the self-priming oil pump in Retarder, it is characterised in that: be provided with the lower deep gouge (2.4) of accommodating oil seal collar towards the side of hull outside at through hole (2.2).
5. the self-priming oil pump being used in Retarder described in claim 1, it is characterised in that: on the binding face of the first housing (1) and the second housing (2), it is provided with the sealing structure preventing oil from overflowing from binding face.
6. the self-priming oil pump being used in Retarder described in claim 5, it is characterised in that: described sealing structure includes the circular groove (2.3) being located on the second housing (2) and the sealing ring (7) being placed in circular groove (2.3)；Described circular groove (2.3) is coaxial with circular cavity (4), and the radius of circular groove (2.3) is more than the radius of circular cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620155680.9U CN205401155U (en) | 2016-03-01 | 2016-03-01 | A inhale formula oil pump certainly for in hydraulic retarber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620155680.9U CN205401155U (en) | 2016-03-01 | 2016-03-01 | A inhale formula oil pump certainly for in hydraulic retarber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401155U true CN205401155U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620155680.9U Active CN205401155U (en) | 2016-03-01 | 2016-03-01 | A inhale formula oil pump certainly for in hydraulic retarber |
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| Country | Link |
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| CN (1) | CN205401155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697387A (en) * | 2016-03-01 | 2016-06-22 | 宁波华盛联合制动科技有限公司 | Self-suction type oil pump used for hydraulic retarder |
-
2016
- 2016-03-01 CN CN201620155680.9U patent/CN205401155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697387A (en) * | 2016-03-01 | 2016-06-22 | 宁波华盛联合制动科技有限公司 | Self-suction type oil pump used for hydraulic retarder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |