CN211692808U - Diesel roller pump for passenger car - Google Patents

Diesel roller pump for passenger car Download PDF

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Publication number
CN211692808U
CN211692808U CN202020030014.9U CN202020030014U CN211692808U CN 211692808 U CN211692808 U CN 211692808U CN 202020030014 U CN202020030014 U CN 202020030014U CN 211692808 U CN211692808 U CN 211692808U
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China
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roller
pump
grooves
oil outlet
planetary wheel
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CN202020030014.9U
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史俊鸿
张佳楠
蔡宝成
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Shanghai Yingzhi Automotive Parts Co ltd
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Shanghai Yingzhi Automotive Parts Co ltd
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Abstract

The utility model provides a passenger car diesel oil roller pump belongs to the technical field of roller pump. A diesel roller pump for passenger cars comprises a shell, a motor part and a pump body part; the utility model arranges the pump cavity on the oil outlet plate of the pump body component, and the planet wheel of the armature shaft connected with the motor component is arranged in the pump cavity, so that the oil outlet plate is of an integral structure, the processing is convenient, the product clearance is effectively avoided, the precision consistency is good, the friction and the noise are prevented, and the service life is prolonged; in addition, a plurality of roller grooves with rollers are arranged on the edge of the planetary wheel, grooves are formed in the front end face and the back end face of each roller groove and located in the planetary wheel, meanwhile, the grooves are located on the front side of the rollers in the current roller grooves in the moving direction of the planetary wheel, volume cavities in the radial two sides of the rollers in the roller grooves are communicated through the grooves, the pressure in the two volume cavities is balanced, the oil supply performance is improved, the noise is eliminated, the service life is prolonged, and the use requirements of the passenger vehicle are met.

Description

Diesel roller pump for passenger car
Technical Field
The utility model relates to a technical field of roller pump specifically is a diesel oil roller pump for passenger car is related to.
Background
In an automobile oil supply system, an electric fuel pump is used as a key part, and the structural reasonability of the electric fuel pump directly determines the service performance of an automobile engine. And because the diesel oil has higher temperature (reaching more than 100 ℃) when working, and has higher viscosity even presenting jelly under the low temperature condition, the problem that the traditional turbine fuel pump is difficult to meet the use requirement of diesel oil supply under the low temperature condition is solved by adopting the diesel oil roller pump.
However, the roller pump in the market at present is a structure that one end of a shell is provided with a pump body part, the other end is provided with a motor part connected with the pump body part, and the pump body part as a key part mainly comprises an oil inlet plate, an oil outlet plate, a roller, a planetary wheel, a bearing, a rivet, a fixed ring and other structures; the other connection mode adopts a structure that a flat position is processed on the armature shaft, a driving piece is driven through the flat position, and then the driving piece drives the pump body component to move, although the assembly efficiency can be effectively improved, because too many rotating parts work simultaneously and the clearance between the moving parts is small, the manufacturing precision of each part needs to be improved, the processing cost is increased, and the limitation is brought to the processing. In addition, the structures of an oil inlet plate, an oil outlet plate, a roller, a planetary wheel, a bearing, a rivet, a fixed ring and the like of a pump body component of the existing roller pump are all made of metal materials, so that the problem of mutual friction of similar materials can be solved in the operation process, larger noise is generated, the use requirement of a passenger car is difficult to meet, the consistency of product gaps is poor due to the fact that a pump body cavity is of a split structure and is fixed by the rivet, vacuum or overpressure is easily generated due to insufficient oil absorption or oil discharge time of a product in the high-frequency volume change process, pressure at two ends of the roller is unbalanced, the roller cannot be well attached to the inner surface of the pump cavity, vibration of the roller on the inner surface of the pump cavity is caused, impact noise is generated, and the problems that the abrasion of the pump body component and the bearing is fast and the service.
Disclosure of Invention
The diesel roller pump for the passenger car is provided, the oil outlet plate is integrated, grooves are additionally arranged on the front surface and the back surface of a roller groove of the planetary wheel, the grooves are arranged between every two adjacent rollers and are located on the front side of the current roller along the rotation direction of the planetary wheel, the inner volume cavity and the outer volume cavity of the roller are communicated through the grooves, the pressure of the inner volume cavity and the pressure of the outer volume cavity are balanced, the inner surface of the oil outlet plate can be well attached to the roller, the oil supply capacity is increased, the noise is avoided, the product is enabled to be more easily machined, the machining cost is reduced, the problems that mutual friction generates noise and the service life is shortened are effectively solved, and the use requirements of the passenger car can be met.
The specific technical scheme is as follows:
a diesel roller pump for passenger cars comprises a shell, a motor part and a pump body part, wherein the motor part and the pump body part are arranged in the shell and positioned at two ends of the shell, and the pump body part is in power connection with an armature shaft of the motor part and is characterized in that the pump body part comprises an oil outlet plate, a planetary wheel, an oil inlet plate and rollers, an oil outlet is arranged on the oil outlet plate, an oil inlet is arranged on the oil inlet plate, a pump cavity is arranged at one side of the oil outlet plate, which is away from the motor part, an oil outlet plate cover is arranged on the pump cavity, an inner hole is arranged in the middle of the oil outlet plate, the inner hole and the pump cavity are eccentrically arranged, the planetary wheel is arranged in the pump cavity, a plurality of roller grooves are arranged on the edge of the planetary wheel, a roller is arranged in each roller groove, a groove is arranged between two adjacent roller grooves in each roller groove, grooves are arranged on the front end surface and the back end surface of the planetary wheel and in each roller groove, meanwhile, the groove is positioned on the front side of the roller in the roller groove where the roller is positioned currently in the rotating direction of the planetary wheel.
In the diesel roller pump for passenger cars, one end of the armature shaft penetrates through the inner hole and then is in floating connection with the planetary wheel.
In the diesel roller pump for passenger cars, one end of the armature shaft connected with the planetary wheel is provided with the flat position.
In the diesel roller pump for passenger cars, the boss is arranged on the oil outlet plate and on one side of the pump cavity, and the boss is positioned in the center of the oil outlet plate.
In the diesel roller pump for passenger cars, the inner hole is positioned in the center of the oil outlet plate.
In the diesel roller pump for passenger cars, the sectional areas of the grooves on the front and back end surfaces in each roller groove are different, and the sectional area of the groove on the side close to the oil inlet plate is larger than the sectional area of the groove on the side close to the oil outlet plate.
In the diesel roller pump for passenger cars, the groove depth of the groove is consistent with the groove depth of the roller groove along the radial direction of the planetary wheel.
In the diesel roller pump for passenger cars, the oil outlet plate is in interference fit with the inner wall of the shell.
In the diesel roller pump for passenger cars, five roller grooves are distributed on each planetary wheel.
The positive effects of the technical scheme are as follows:
the diesel oil roller pump for passenger vehicles is characterized in that the oil outlet plate with the inner hole is arranged, the oil outlet plate is provided with the pump cavity, the upper cover of the pump cavity is provided with the oil inlet plate, the planetary wheel with the plurality of roller grooves is arranged in the pump cavity, and each roller groove is internally provided with a roller, so that the integrally arranged oil outlet plate is realized, the structure is simple, the number of parts is small, the processing is convenient, the processing cost is reduced, the product gap can be effectively avoided by the integral structure, the problems of friction and noise between the structures are solved, the grooves are arranged on the front surface and the back surface of the planetary wheel in each roller groove, the volume cavities on the radial two sides of the roller in the roller groove are communicated through the grooves, the pressure in the inner volume cavity and the outer volume cavity is balanced, the rollers can be tightly attached to the inner surface of the pump cavity of the oil outlet plate, the oil supply performance is improved, and the problem of noise is avoided, the service life is prolonged, and the use requirement of the passenger car is easier to meet.
Drawings
Fig. 1 is a structural view of an embodiment of a diesel roller pump for a passenger car according to the present invention.
In the drawings: 1. a pump body component; 11. an oil outlet plate; 12. a planetary wheel; 13. an oil inlet plate; 14. a roller; 111. an oil outlet; 112. a pump chamber; 113. an inner bore; 121. a roller groove; 122. a groove; 2. an armature shaft.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically illustrated with reference to fig. 1, but the following contents are not intended to limit the present invention.
Fig. 1 is a structural view of an embodiment of a diesel roller pump for a passenger car according to the present invention. As shown in fig. 1, the diesel roller pump for a passenger car according to the present embodiment includes: the oil pump comprises a shell, a motor part and a pump body part 1, wherein the motor part and the pump body part 1 are arranged in the shell and positioned at two ends of the shell, and meanwhile, the pump body part 1 is in power connection with an armature shaft 2 of the motor part, so that the pump body part 1 is driven to act through the armature shaft 2 of the motor part, and oil pumping is achieved.
Specifically, the pump body part 1 includes an oil outlet plate 11, a planetary wheel 12, an oil inlet plate 13 and a roller 14, an oil outlet 111 is provided on the oil outlet plate 11, an oil inlet is provided on the oil inlet plate 13, a pump cavity 112 is provided on one side of the oil outlet plate 11 facing away from the motor part, the oil outlet plate 11 is covered on the pump cavity 112, and an inner hole 113 is provided in the middle of the oil outlet plate 11, the inner hole 113 and the pump cavity 112 are eccentrically disposed, meanwhile, the planetary wheel 12 is provided in the pump cavity 112, so that when the planetary wheel 12 rotates in the pump cavity 112, the planetary wheel 12 can eccentrically move in the pump cavity 112, a structural basis is provided for the change of the volume of the pump cavity 112, and meanwhile, the oil outlet plate 11 is also provided in an integrated structure, the arrangement of parts is effectively reduced, the structure is simple, the one-time clamping and processing is realized, the processing is convenient, the assembly and the manufacturing is simple, the efficiency is high, the, the problems that the consistency of product gaps is poor, noise and abrasion are easy to generate in products caused by the existing split type structure are solved, and the service life of the pump is prolonged. In addition, a plurality of roller grooves 121 are formed on the edge of the planetary wheel 12, a roller 14 is arranged in each roller groove 121, a groove 122 is arranged in each roller groove 121 and between two adjacent roller grooves 121, grooves 122 are arranged on the front and back end faces of the planetary wheel 12 and in each roller groove 121, and meanwhile, in the rotating direction of the planetary wheel 12, the groove 122 is arranged on the front side of the roller 14 in the roller groove 121 where the groove 122 is located, namely, the groove 122 is arranged on one side of the roller groove 121, so that when an inner volume chamber and an outer volume chamber are formed on the two sides of the roller 14 along with the rotation of the planetary wheel 12 and the sizes of the two volume chambers are changed alternately, the inner volume chamber and the outer volume chamber can be communicated through the groove 122, so that the fuel oil in the inner volume chamber and the outer volume chamber can flow from the side with high pressure to the side with low pressure through the groove 122, thereby avoiding the problem that the oil pressure in the volume chambers is raised rapidly, the balance of the pressure in the inner volume cavity and the pressure in the outer volume cavity are maintained, so that the roller 14 can be better attached to the inner surface of the pump cavity 112 of the oil outlet plate 11, the self-suction capability is improved, the stable oil supply pressure is provided, the problems of vacuum burst noise and the like caused by the unbalanced pressure in the cavity are avoided, and the use requirement of a passenger vehicle is easier to meet.
More specifically, one end of the armature shaft 2 of the motor component passes through the inner hole 113 and then is connected with the planetary wheel 12 in a floating manner, so that the armature shaft 2 can drive the planetary wheel 12 to rotate in the rotating process, the roller 14 is driven to move, the volume of the pump cavity 112 is changed, and oil is pumped. In addition, one end of the armature shaft 2 connected with the planetary wheel 12 is provided with a flat position, so that the armature shaft 2 and the planetary wheel 12 are driven by the flat position, the processing is convenient, the assembly efficiency can be improved, and the structural design is more reasonable.
More specifically, the oil outlet plate 11 and the side of the pump cavity 112 are provided with a boss, and the boss is located at the center of the oil outlet plate 11, so that the planetary wheel 12 rotates on the boss, a support is provided for the installation and movement of the planetary wheel 12, and the structural design is more reasonable.
More specifically, the inner hole 113 is located in the center of the oil outlet plate 11, which facilitates the installation and connection of the armature shaft 2, so that the pump cavity 112 on the oil outlet plate 11 is located at an eccentric position, which facilitates the processing and installation, and the structural design is more reasonable.
More specifically, the sectional areas of the grooves 122 on the front end surface and the back end surface in each roller groove 121 are different, and the sectional area of the groove 122 close to one side of the oil inlet plate 13 is larger than the sectional area of the groove 122 close to one side of the oil outlet plate 11, so that the use requirement that the pressure at the oil inlet is smaller than that at the oil outlet position can be met, the balance of the pressure of the volume cavity is further ensured, the oil pumping performance is improved, the problems of abrasion and vacuum cracking noise generation are solved, and the structural design is more reasonable.
More specifically, in the radial direction of the planetary wheel 12, the groove depth of the groove 122 is the same as the groove depth of the roller groove 121, so that the groove 122 can completely communicate the inner volume cavity and the outer volume cavity at the two sides of the roller 14, thereby improving the oil pumping performance.
As a preferred embodiment, the oil outlet plate 11 and the inner wall of the housing are in interference fit, when assembling, the oil outlet plate 11 is firstly pressed into the housing and fixed, then the planetary wheel 12 is installed in the pump cavity 112 of the oil outlet plate 11, the rollers 14 are installed in the roller grooves 121 of the planetary wheel 12, and finally the oil inlet plate 13 is covered, so that the assembly of the pump body part 1 is realized, and the oil outlet plate 11 and the housing which are in interference fit can ensure the stability of the installation reference, ensure the installation accuracy, and further prevent the abrasion and the oil pumping performance.
As a further preferred embodiment, the oil inlet plate 13 is made of a material which has low swelling capacity in diesel oil, low deformation under high and low temperature conditions, good wear resistance, good vibration absorption performance and high self-lubricating performance, and the structural stability and the service performance of the pump body component 1 are improved.
As a further preferred embodiment, the inner wall of the pump cavity 112 of the oil outlet plate 11 is divided into four sections, including a proximal equal radius section, a distal equal radius section, a climbing section and a descending section, and in the moving direction of the roller 14, the roller 14 reaches the distal equal radius section from the proximal equal radius section through the climbing section, and then reaches the proximal equal radius section from the distal equal radius section through the descending section, and such repetition is performed, and at the same time, the track of the four sections does not change suddenly, so that when the roller 14 revolves around the track of the four sections, the track of the roller 14 does not change suddenly, thereby reducing vibration, reducing noise, and having a more reasonable structural design.
As a further preferred embodiment, five roller grooves 121 are distributed on each planetary wheel 12, and the five roller grooves 121 are unevenly distributed on the planetary wheel 12, so that the movement locus of each roller 14 is different without reducing the oil pumping efficiency, thereby splitting the movement locus of the roller 14, and enabling the roller to operate at different frequencies, thereby avoiding the problem of resonance, effectively reducing noise, and having a more reasonable structural design.
The diesel roller pump for the passenger vehicle provided by the embodiment comprises a shell, a motor part and a pump body part 1; the pump cavity 112 is arranged on the oil outlet plate 11 of the pump body part 1, and the planet wheel connected with the armature shaft 2 of the motor part is arranged in the pump cavity 112, so that the oil outlet plate 11 is of an integrated structure, the number of structural parts is small, the processing is convenient, the product clearance is effectively avoided, the precision consistency is good, the problems of friction and noise are prevented, and the service life is prolonged; in addition, a plurality of roller grooves 121 with the rollers 14 are arranged on the edge of the planetary wheel 12, a groove 122 is arranged in each roller groove 121 and between two adjacent roller grooves 121, the grooves 122 are arranged on the front end face and the back end face of the planetary wheel 12, meanwhile, the grooves 122 are arranged on the front side of the rollers 14 in the current roller grooves 121 in the moving direction of the planetary wheel 12, and the volume cavities on the radial two sides of the rollers 14 in the roller grooves 121 are communicated through the grooves 122, so that the pressure in the two volume cavities is balanced, the oil supply performance is improved, the noise is eliminated, the service life is prolonged, and the use requirements of the passenger vehicle are met more easily.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims (9)

1. A passenger car diesel roller pump comprises a shell, a motor part and a pump body part, wherein the motor part and the pump body part are arranged in the shell and positioned at two ends of the shell, and the pump body part is in power connection with an armature shaft of the motor part, and the passenger car diesel roller pump is characterized in that the pump body part comprises an oil outlet plate, a planetary wheel, an oil inlet plate and rollers, an oil outlet is formed in the oil outlet plate, an oil inlet is formed in the oil inlet plate, a pump cavity is arranged on one side, away from the motor part, of the oil outlet plate, the oil outlet plate is covered on the pump cavity, an inner hole is formed in the middle of the oil outlet plate, the inner hole and the pump cavity are arranged in an eccentric mode, the planetary wheel is arranged in the pump cavity, a plurality of roller grooves are formed in the edge of the planetary wheel, and each roller groove is internally provided with one roller, and a groove is arranged in each roller groove and between two adjacent roller grooves, the grooves are arranged on the front end surface and the back end surface of the planetary wheel and in each roller groove, and the grooves are arranged on the front side and the back end surface of the planetary wheel and in the front side of the rollers in the roller grooves where the grooves are located at present along the rotation direction of the planetary wheel.
2. The passenger vehicle diesel roller pump of claim 1, wherein one end of the armature shaft is floatingly coupled to the planetary wheel after passing through the inner bore.
3. The passenger car diesel roller pump according to claim 2, wherein one end of the armature shaft connected to the planetary wheel is provided with a flat position.
4. The passenger car diesel roller pump according to claim 1, wherein a boss is provided on the oil outlet plate on one side of the pump chamber, and the boss is located at the center of the oil outlet plate.
5. The passenger car diesel roller pump of claim 1, wherein the inner bore is located at a center of the oil outlet plate.
6. The passenger car diesel roller pump according to claim 1, wherein the grooves on both the front and rear end surfaces in each roller groove have different sectional areas, and the sectional area of the groove on the side close to the oil inlet plate is larger than the sectional area of the groove on the side close to the oil outlet plate.
7. The passenger car diesel roller pump according to claim 1, wherein a groove depth of the groove coincides with a groove depth of the roller groove in a radial direction of the planetary wheel.
8. The passenger car diesel roller pump of claim 1, wherein the oil outlet plate is an interference fit with an inner wall of the housing.
9. The passenger car diesel roller pump according to claim 1, wherein five roller grooves are distributed on each of the planetary wheels.
CN202020030014.9U 2020-01-07 2020-01-07 Diesel roller pump for passenger car Active CN211692808U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020030014.9U CN211692808U (en) 2020-01-07 2020-01-07 Diesel roller pump for passenger car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020030014.9U CN211692808U (en) 2020-01-07 2020-01-07 Diesel roller pump for passenger car

Publications (1)

Publication Number Publication Date
CN211692808U true CN211692808U (en) 2020-10-16

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ID=72799561

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020030014.9U Active CN211692808U (en) 2020-01-07 2020-01-07 Diesel roller pump for passenger car

Country Status (1)

Country Link
CN (1) CN211692808U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113550849A (en) * 2021-06-29 2021-10-26 无锡威孚高科技集团股份有限公司 Diesel constant-flow brushless starting pump assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113550849A (en) * 2021-06-29 2021-10-26 无锡威孚高科技集团股份有限公司 Diesel constant-flow brushless starting pump assembly

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