CN205480132U - Machine oil pump seal structure - Google Patents
Machine oil pump seal structure Download PDFInfo
- Publication number
- CN205480132U CN205480132U CN201520689019.1U CN201520689019U CN205480132U CN 205480132 U CN205480132 U CN 205480132U CN 201520689019 U CN201520689019 U CN 201520689019U CN 205480132 U CN205480132 U CN 205480132U
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- Prior art keywords
- pump
- rotor
- rotor chamber
- pump cover
- pump shaft
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Abstract
The utility model discloses a seal structure of oil pump, the oil pump includes the pump body and pump cover, sets up rotor cavity on the pump body, is equipped with pump shaft, inner rotor and external rotor that from interior to exterior cup jointed in order in the rotor cavity, and pump shaft and inner rotor are integrative to be set up, the pump cover stacks the setting on rotor cavity to being connected with rotor cavity through the fastener more than two and fixing, the fastener is evenly arranged along rotor cavity's outer circumference. The utility model discloses simple structure, processing make things convenient for, effectively prevent the seepage, practice thrift raw and other materials and reduction in production cost, avoid appearing the jamming problem.
Description
Technical field
This utility model relates to the sealing structure of a kind of lubricating oil pump.
Background technology
There is engine oil leakage problem in use in existing lubricating oil pump, not only increases the cost of production, and pollute environment；In addition, easily there is relative displacement at transportation middle pump body with pump cover in lubricating oil pump, when road conditions are bad, can cause lubricating oil pump in transit because collision causes the phenomenon of clamping stagnation, in existing technology, in order to solve this problem, use substantial amounts of foamed materials that each lubricating oil pump carries out parcel isolation, not only waste time and energy, increase operating cost, and also result in substantial amounts of waste, be unfavorable for environmental protection.
Utility model content
It is many, easily because collision causes clamping stagnation that the technical problems to be solved in the utility model is that existing lubricating oil pump exists seepage, consumptive material.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: the sealing structure of a kind of lubricating oil pump, described lubricating oil pump includes the pump housing and pump cover, rotor chamber is set on the pump housing, being provided with pump shaft, internal rotor and the outer rotor being the most sequentially socketed in rotor chamber, pump shaft and internal rotor are wholely set, and described pump cover stacks and is arranged in rotor chamber, and it being connected fixing with rotor chamber by plural securing member, securing member is uniformly arranged along the excircle of rotor chamber.
By securing member, pump cover is directly positioned rotor chamber, prevent from occurring at the pump housing and pump cover displacement, reduce the generation that lubricating oil pump causes the phenomenon of clamping stagnation in transit because of collision.
For improving pump cover, the sealing of rotor chamber junction further, described pump cover and/or rotor chamber being additionally provided with annular seal pocket, arranges sealing ring in seal groove, the position correspondence pump cover of seal groove is arranged with the place of stacking of rotor chamber.This design can singly arrange on pump cover seal groove, seal groove singly can also be set in rotor chamber, more can respectively set the seal groove corresponding with position on pump cover with rotor chamber, by the setting of sealing ring simultaneously, more being fitted in contact position between pump cover, rotor chamber, sealing effectiveness is more preferable.
For ease of installing/dismounting, described rotor chamber and pump cover use plug-in to connect.
For reducing the seepage of oil further, and realize preferable cover plate locating effect, described plug-in is connected by following structure: the degree of depth of described rotor chamber is higher than the height of outer rotor, it is round table-like that pump cover and the contact surface of rotor chamber are the ladder of two-stage, the end face of first order round table surface laminating rotor chamber, two grades of round platforms and rotor chamber form fit also snap in rotor chamber, and two grades of round table surface are arranged with the end face matched in clearance of outer rotor.Conventional oil pump is to connect the pump housing, pump cover by alignment pin, so make oil pump, during transport, collision rift catching phenomenon easily occur, and the staged boss of this pump cover designs the location that just coincides with pump housing rotor lumen pore, add securing member to fix, effectively solve the pump housing and the fastness of pump cover junction.
As a kind of improvement of the present utility model, two grades of round table surface of described pump cover being additionally provided with on pump shaft hole, location, pump shaft upper end is inserted in positioning hole on pump shaft and both gaps and is equipped with.The upper and lower side of pump shaft is fixed by hole, location under hole, location on pump shaft and pump shaft respectively, positions hole in the bottom of the rotor chamber of the pump housing under pump shaft；The position making internal rotor is more stable, and pump shaft also can play the effect of location pump cover, the location of pump cover is inserted by pump shaft, with the location again that two grades of round platforms of pump cover snap in rotor chamber, Dual positioning make the pump housing, pump cover combination more firm, solve the problem that lubricating oil pump causes clamping stagnation because of collision in transit further.
As the seepage reducing oil, and realize the another kind of scheme of preferable cover plate locating effect, described plug-in is connected by following structure: the degree of depth of described rotor chamber is less than the height of outer rotor, setting the circular groove of indent on pump cover, described outer rotor protrudes the part of rotor chamber and is placed in circular groove with the setting of circular groove gap and card.
As another kind of improvement of the present utility model, the circular groove bottom surface of described pump cover being additionally provided with on pump shaft hole, location, pump shaft upper end is inserted in positioning hole on pump shaft and both gaps and is equipped with.
The utility model has the advantages that: simple in construction, easy to process, effectively prevent seepage, save material and reduce production cost, avoid the occurrence of clamping stagnation problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (pump cover is plane).
Fig. 2 is structural representation of the present utility model (pump cover is boss).
Fig. 3 is structural representation of the present utility model (pump cover band groove).
Detailed description of the invention
Below in conjunction with structural representation of the present utility model, this utility model is described further.
Embodiment 1
As it is shown in figure 1, this utility model seals structure includes rotor chamber 1 and pump cover 2, for placing pump shaft, internal rotor and the outer rotor being socketed the most successively in rotor chamber 1, internal rotor and pump shaft are wholely set；Described pump cover 2 stacks and is arranged in rotor chamber 1, and is connected fixing with rotor chamber 1 by three screws, and screw is uniformly arranged along the excircle of rotor chamber 1, to realize location；Additionally, due to described pump cover 2 is planar structure, the effect that paper washer reaches to seal between itself and rotor chamber 1, can be folded up；Again, the center of pump cover 2 can arrange hole 4, location on pump shaft, and pump shaft upper end is inserted in positioning hole 4 on pump shaft and both gaps and is equipped with, and positions hole, reach effect of Dual positioning under the pump shaft bottom this hole, location cooperation rotor chamber；Finally, rotor chamber 1 being additionally provided with seal groove 3, can arrange sealing ring and replace aforementioned paper washer to play better seal effect in groove, this seal groove can also be alternatively provided on pump cover 2, can play the same effect equally.
Embodiment 2
As in figure 2 it is shown, this utility model seals structure includes rotor chamber 1 and pump cover 2, for placing pump shaft, internal rotor and the outer rotor being socketed the most successively in rotor chamber 1, internal rotor and pump shaft are wholely set；Described pump cover 2 stacks and is arranged in rotor chamber 1, and is connected fixing with rotor chamber 1 by three screws, and screw is uniformly arranged along the excircle of rotor chamber 1, to realize location.
In addition, the degree of depth of described rotor chamber 1 is higher than the height of outer rotor, it is round table-like that pump cover 2 and the contact surface of rotor chamber 1 are the ladder of two-stage, the end face of first order round table surface laminating rotor chamber 1, two grades of round platforms and rotor chamber 1 form fit also snap in rotor chamber 1, the end face matched in clearance of two grades of round table surface and outer rotor is arranged, conventional oil pump is to connect the pump housing by alignment pin, pump cover, so make oil pump, during transport, collision rift catching phenomenon easily occur, and the staged boss of this pump cover designs the location that just coincides with pump housing rotor lumen pore, add securing member to fix, effectively solve the pump housing and the fastness of pump cover junction.
Again, two grades of round table surface of described pump cover 2 being additionally provided with on pump shaft hole 4, location, pump shaft upper end is inserted in positioning hole 4 on pump shaft and both gaps and is equipped with.The upper and lower side of pump shaft is fixed with being arranged under the pump shaft bottom rotor chamber 1 hole, location by hole, location 4 on pump shaft respectively；The position making internal rotor is more stable, and pump shaft also can play the effect of location pump cover, the location of pump cover 2 is inserted by pump shaft, with the location again that 2 two grades of round platforms of pump cover snap in rotor chamber 1, Dual positioning make the pump housing, pump cover 2 combination more firm, solve the problem that lubricating oil pump causes clamping stagnation because of collision in transit further.
Finally, pump cover 2 being additionally provided with seal groove 3, can arrange sealing ring and play preferable sealing effectiveness, prevent the seepage of machine oil in groove, this seal groove 3 can also be alternatively provided in rotor chamber 1, can play the same effect equally.
Embodiment 3
As it is shown on figure 3, this utility model seals structure includes rotor chamber 1 and pump cover 2, for placing pump shaft, internal rotor and the outer rotor being socketed the most successively in rotor chamber 1, internal rotor and pump shaft are wholely set；Described pump cover 2 stacks and is arranged in rotor chamber 1, and is connected fixing with rotor chamber 1 by three screws, and screw is uniformly arranged along the excircle of rotor chamber 1, to realize location.
Additionally, the degree of depth of described rotor chamber 1 is less than the height of outer rotor, pump cover 2 setting the circular groove of indent, described outer rotor protrudes the part of rotor chamber 1 and is placed in circular groove with the setting of circular groove gap and card.
Again, the circular groove bottom surface of described pump cover 2 being additionally provided with on pump shaft hole 4, location, pump shaft upper end is inserted in positioning hole 4 on pump shaft and both gaps and is equipped with.
Finally, pump cover 2 being additionally provided with seal groove 3, can arrange sealing ring and play preferable sealing effectiveness, prevent the seepage of machine oil in groove, this seal groove 3 can also be alternatively provided in rotor chamber 1, can play the same effect equally.
Claims (1)
1. the sealing structure of a lubricating oil pump, described lubricating oil pump includes the pump housing and pump cover, rotor chamber is set on the pump housing, pump shaft, internal rotor and the outer rotor being the most sequentially socketed it is provided with in rotor chamber, pump shaft and internal rotor are wholely set, it is characterized in that: described pump cover stacks and is arranged in rotor chamber, and be connected with rotor chamber fixing by plural securing member, securing member is uniformly arranged along the excircle of rotor chamber；
Being additionally provided with annular seal pocket in described rotor chamber, arrange sealing ring in seal groove, the position correspondence pump cover of seal groove is arranged with the place of stacking of rotor chamber；
Described rotor chamber and pump cover use following plug-in to connect: the degree of depth of rotor chamber, less than the height of outer rotor, pump cover sets the circular groove of indent, and described outer rotor protrudes the part of rotor chamber and is placed in circular groove with the setting of circular groove gap and card；
Being additionally provided with on pump shaft hole, location on the circular groove bottom surface of described pump cover, pump shaft upper end is inserted in positioning hole on pump shaft and both gaps and is equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689019.1U CN205480132U (en) | 2015-09-08 | 2015-09-08 | Machine oil pump seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689019.1U CN205480132U (en) | 2015-09-08 | 2015-09-08 | Machine oil pump seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205480132U true CN205480132U (en) | 2016-08-17 |
Family
ID=56660706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689019.1U Active CN205480132U (en) | 2015-09-08 | 2015-09-08 | Machine oil pump seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205480132U (en) |
-
2015
- 2015-09-08 CN CN201520689019.1U patent/CN205480132U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |