CN110979453A - Connection structure of motor and electric power steering oil pump, power steering system and automobile - Google Patents
Connection structure of motor and electric power steering oil pump, power steering system and automobile Download PDFInfo
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- CN110979453A CN110979453A CN201911101739.0A CN201911101739A CN110979453A CN 110979453 A CN110979453 A CN 110979453A CN 201911101739 A CN201911101739 A CN 201911101739A CN 110979453 A CN110979453 A CN 110979453A
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- 230000002349 favourable effect Effects 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
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Abstract
The utility model provides a connection structure, power assisted steering system, car of motor and electric power assisted steering oil pump, relates to power assisted steering system technical field, and this connection structure of motor and electric power assisted steering oil pump includes motor shaft and pump head axle, regular flower type groove is seted up along the axial to the front end of motor shaft, the front end of pump head axle is fixed with along the axial and is used for inserting flower type axle in the flower type groove. According to the invention, the regular pattern grooves are formed in the front end of the motor shaft along the axial direction, and the pattern shaft inserted into the pattern grooves is fixed at the front end of the pump head shaft along the axial direction.
Description
Technical Field
The invention relates to the technical field of power-assisted steering systems, in particular to a connection structure of a motor and an electric power-assisted steering oil pump, a power-assisted steering system and an automobile.
Background
At present, automobiles are already in the way of thousands of households, and are common to all people, namely passenger cars and business cars.
The development trend of the current automobile technology is energy conservation, safety and environmental protection. Therefore, the pure electric vehicle is more and more concerned by people. The power steering system is an indispensable safety part on the vehicle. On the traditional vehicle, for pure hydraulic power steering system, the power steering oil pump passes through gear or belt pulley and directly links to each other with the engine, but to the new energy automobile on, use electronic power steering oil pump. The motor replaces the engine on the traditional vehicle, so the assembly mode of the oil pump is changed from the original gear transmission or belt pulley transmission into the direct connection of the motor and the pump head.
At present, the connection mode is as shown in the figure, the pump head is connected with the motor through a straight key, the motor shaft is short in extension, the pump head and the motor are assembled and are also sealed through an O-shaped ring, therefore, the straight key of the pump head and a straight groove of the motor are firstly aligned during assembly, then the O-shaped sealing ring of the pump head is assembled and enters a hole of an opposite end cover, the straight key and a straight groove can not be completely aligned during assembly, if the straight key and the straight groove are not completely aligned, the pump head can only be inserted into one part, the pump head needs to be pulled out and then assembled again, the process takes time, and the installation is inconvenient.
Disclosure of Invention
One of the objectives of the present invention is to provide a connection structure for a motor and an electric power steering oil pump, which avoids the disadvantages of the prior art, and can simplify the installation of the motor and the pump head, and reduce the installation steps and the installation time of the motor and the pump head.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a connection structure of motor and electric power assisted steering oil pump, includes motor shaft and pump head axle, regular flower type groove is seted up along the axial to the front end of motor shaft, the axial fixity has along the front end of pump head axle is used for inserting the flower type axle in the flower type groove. Through the front end at the motor shaft along the axial set up regular flower type groove, be used for inserting the flower type axle in the flower type groove at the front end of pump head axle along the axial fixity simultaneously, because flower type groove has regular flower type structure, make flower type groove and flower type axle need not to aim at in the assembly, when the assembly angle inconsistent of flower type groove and flower type axle, only need rotate motor shaft or pump head axle, can accomplish the assembly, make the installation of motor and pump head become simple, can reduce the installation step of motor and pump head simultaneously, installation time.
Furthermore, the flower-shaped groove comprises a first section and a second section, the diameter of the first section of the flower-shaped groove is larger than that of the second section of the flower-shaped groove, and the first section of the flower-shaped groove is located at the foremost end of the motor shaft. The flower-shaped groove is divided into two sections, the two sections in the flower-shaped groove are the same in shape and different in size, the first section is located at the foremost end of the motor shaft, the flower-shaped shaft can be easily inserted into the flower-shaped groove because the first section of the flower-shaped groove is large, if the flower-shaped groove is not aligned with the second section of the flower-shaped groove, the flower-shaped shaft can be blocked, the pump head shaft does not need to be completely pulled out and aligned again, the motor shaft or the pump head shaft only needs to be rotated, and when the angles are consistent, the flower-shaped groove can be smoothly inserted into the motor shaft, so that much.
Furthermore, the diameter of the first section of the flower-shaped groove is larger than that of the flower-shaped shaft, and the diameter of the second section of the flower-shaped groove is the same as that of the flower-shaped shaft. The diameter of the first section in flower type groove is greater than flower type axle, makes flower type axle easily insert into, and the diameter of the second section in flower type groove is the same with flower type axle, can make flower type groove and flower type axle assemble the back motor shaft that finishes and can not take place to slide with the pump head axle, has increased the fastness of assembly.
Furthermore, the first section in flower type groove is the gradual narrowing setting, narrower one end in the first section in flower type groove with the second section intercommunication in flower type groove. The first section in flower type groove is the gradually narrowing setting, and the narrower one end in the first section in flower type groove and the second section intercommunication in flower type groove can carry on spacingly to the flower type axle of inserting in flower type inslot, make flower type axle when inserting flower type groove back half, form a straight line with flower type groove back half, are favorable to the flower type axle to insert.
Further, the diameter of the narrower end in the first section of the flower-shaped groove is the same as that of the second section of the flower-shaped groove. The narrower one end in the first section of flower type groove is the same with the size of the second section of flower type groove, can carry on spacing to the flower type axle of inserting into flower type groove, make the flower type axle when inserting the latter half of flower type groove, form a straight line with latter half of flower type groove, help the flower type axle to insert.
Further, the length of the flower-shaped shaft is greater than the first section of the flower-shaped groove. The length of flower type axle is greater than the length of the first section in flower type groove, can guarantee that the flower type axle gets into the latter half section in flower type groove after inserting flower type groove, guarantees that flower type groove and flower type axle assembly back motor shaft and pump head axle can not take place to slide, has increased the fastness of assembly.
Furthermore, the flower-shaped groove is a quincunx cylindrical groove, and the flower-shaped shaft is a quincunx cylindrical shaft matched with the quincunx cylindrical groove. The flower-shaped groove is a quincunx cylindrical groove, and the flower-shaped shaft is a quincunx cylindrical shaft, so that the flower-shaped groove and the flower-shaped shaft do not need to be aligned during assembly, when the assembly angle of the flower-shaped groove and the flower-shaped shaft is inconsistent, the assembly can be completed only by rotating the motor shaft or the pump head shaft, the installation of the motor and the pump head becomes simple, and meanwhile, the installation steps and the installation time of the motor and the pump head can be reduced.
Furthermore, the flower-shaped shaft and the pump head shaft are integrally formed. The flower-shaped shaft and the pump head shaft are integrally formed, so that extra processing procedures can be reduced, and the production efficiency is increased.
The invention has the beneficial effects that: the invention discloses a connecting structure of a motor and an electric power steering oil pump, which comprises a motor shaft and a pump head shaft, wherein a regular flower-shaped groove is formed in the front end of the motor shaft along the axial direction, and a flower-shaped shaft inserted into the flower-shaped groove is fixed in the front end of the pump head shaft along the axial direction. According to the invention, the regular pattern grooves are formed in the front end of the motor shaft along the axial direction, and the pattern shaft inserted into the pattern grooves is fixed at the front end of the pump head shaft along the axial direction.
The invention also aims to overcome the defects in the prior art and provide a power-assisted steering system, which uses the connecting structure of the motor and the electric power-assisted steering oil pump, because the front end of the motor shaft is provided with a regular pattern groove along the axial direction, and the front end of the pump head shaft is fixed with a pattern shaft which is used for being inserted into the pattern groove along the axial direction, because the pattern groove has a regular pattern structure, the pattern groove and the pattern shaft do not need to be aligned when being assembled, when the assembly angles of the pattern groove and the pattern shaft are not consistent, the assembly can be completed only by rotating the motor shaft or the pump head shaft, the installation of the motor and the pump head becomes simple, and the installation steps and the installation time of the motor and the pump head can be reduced.
The invention also aims to overcome the defects in the prior art and provide an automobile using the power-assisted steering system, wherein a regular pattern groove is formed in the front end of a motor shaft in the axial direction, and a pattern shaft inserted into the pattern groove is fixed in the front end of a pump head shaft in the axial direction.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic view of an overall structure of a connection structure of a motor and an electric power steering oil pump according to the present invention.
Fig. 2 is a structural sectional view of a spline groove of a connection structure of a motor and an electric power steering oil pump according to the present invention.
Fig. 3 is a structural right side view of a pattern groove of a connection structure of a motor and an electric power steering oil pump according to the present invention.
Fig. 4 is a schematic structural view of a spline shaft of a connection structure of a motor and an electric power steering oil pump according to the present invention.
Fig. 5 is a structural left side view of a spline shaft of a connection structure of a motor and an electric power steering oil pump of the present invention.
The figure includes:
Detailed Description
The invention is further described with reference to the following examples.
Example 1
The connection structure of the motor and the electric power steering oil pump of the embodiment includes, as shown in fig. 1 to 5, a motor shaft 1 and a pump head shaft 2, wherein a regular pattern groove 3 is formed at the front end of the motor shaft 1 along the axial direction, and a pattern shaft 4 inserted into the pattern groove 3 is axially fixed at the front end of the pump head shaft 2. Through offer regular flower type groove 3 along the axial at the front end of motor shaft 1, be used for inserting flower type axle 4 in flower type groove 3 along the axial fixity at the front end of pump head axle 2 simultaneously, because flower type groove 3 has regular flower type structure, make flower type groove 3 and flower type axle 4 need not to aim at in the assembly, when flower type groove 3 and flower type axle 4's assembly angle is inconsistent, only need rotate motor shaft 1 or pump head axle 2, can accomplish the assembly, make the installation of motor and pump head become simple, can reduce the installation step of motor and pump head simultaneously, installation time.
The flower type groove 3 comprises a first section and a second section, the diameter of the first section of the flower type groove 3 is larger than that of the second section of the flower type groove 3, and the first section of the flower type groove 3 is located at the foremost end of the motor shaft 1. The flower-shaped groove 3 is divided into two sections, the two sections in the flower-shaped groove 3 are the same in shape and different in size, the first section is located at the foremost end of the motor shaft 1, the flower-shaped shaft 4 can be easily inserted into the flower-shaped groove 3 because the first section of the flower-shaped groove 3 is large, if the flower-shaped groove is not aligned to the second section of the flower-shaped groove 3, the flower-shaped groove can be blocked, but the pump head shaft does not need to be completely pulled out and realigned at the moment, only the motor shaft 1 or the pump head shaft 2 needs to rotate, and when the angles are consistent, the flower-shaped groove can be smoothly inserted into the motor shaft 1.
The diameter of the first section of the flower-shaped groove 3 is larger than that of the flower-shaped shaft 4, and the diameter of the second section of the flower-shaped groove 3 is the same as that of the flower-shaped shaft 4. The diameter of the first section of flower type groove 3 is greater than flower type axle 4, makes flower type axle 4 can easily insert into, and the diameter of the second section of flower type groove 3 is the same with flower type axle 4, can make flower type groove 3 and flower type axle 4 assemble back motor shaft 1 and pump head axle 2 can not take place to slide, has increased the fastness of assembly.
The first section of flower type groove 3 is the setting of tapering, narrower one end in the first section of flower type groove 3 with the second section intercommunication of flower type groove 3. The first section of flower type groove 3 is the gradually narrowing setting, and narrower one end in the first section of flower type groove 3 and the second section intercommunication of flower type groove 3 can carry on spacingly to the flower type axle 4 of inserting in flower type groove 3, make flower type axle 4 when inserting flower type groove 3 back half-section, form a straight line with flower type groove 3 back half-section, are favorable to flower type axle 4 to insert.
The narrower end of the first section of the profiled groove 3 has the same diameter as the second section of the profiled groove 3. The narrower one end in the first section of flower type groove 3 is the same with the size of the second section of flower type groove 3, can carry on spacingly to the flower type axle 4 of inserting in flower type groove 3, make the flower type axle 4 when inserting the latter half of flower type groove 3, form a straight line with the latter half of flower type groove 3, is favorable to the flower type axle 4 to insert.
The length of the flower-shaped shaft 4 is greater than the first section of the flower-shaped groove 3. The length of flower type axle 4 is greater than the length of the first section in flower type groove 3, can guarantee that flower type axle 4 enters the back half section of flower type groove 3 after inserting flower type groove 3, guarantees that flower type groove 3 and flower type axle 4 assembly back motor shaft 1 and pump head axle 2 can not take place to slide, has increased the fastness of assembly.
The flower-shaped groove 3 is a quincunx cylindrical groove, and the flower-shaped shaft 4 is a quincunx cylindrical shaft matched with the quincunx cylindrical groove. The flower type groove 3 is a quincunx cylindrical groove, the flower type shaft 4 is a quincunx cylindrical shaft, so that the flower type groove 3 and the flower type shaft 4 do not need to be aligned in assembly, when the assembly angle of the flower type groove 3 and the flower type shaft 4 is inconsistent, assembly can be completed only by rotating the motor shaft 1 or the pump head shaft 2, the installation of the motor and the pump head is simple, and meanwhile, the installation steps and the installation time of the motor and the pump head can be reduced.
The flower-shaped shaft 4 and the pump head shaft 2 are integrally formed. The flower-shaped shaft 4 and the pump head shaft 2 are integrally formed, so that extra processing procedures can be reduced, and the production efficiency is increased.
When the pump is installed, the large quincuncial groove of the motor shaft 1 is close to the shaft extension of the pump head shaft 2, and the large quincuncial cylindrical groove of the first section is assembled with the quincuncial cylindrical shaft. Because the size of the quincunx cylindrical groove of the first section of the motor shaft 1 is larger than that of the quincunx cylindrical shaft of the pump head shaft 2, the pump head shaft 2 does not need to be aligned with the quincunx cylindrical groove of the motor shaft, and the quincunx cylindrical shaft of the pump head shaft 2 can be directly assembled with the quincunx cylindrical groove of the motor shaft 1. When the motor shaft reaches the small quincunx cylindrical groove section of the second section of the motor shaft 1, if the pump head shaft 2 is not completely aligned with the small quincunx cylindrical groove of the second section, the motor shaft can be clamped at the junction of the large quincunx cylindrical groove of the first section and the small quincunx cylindrical groove of the second section, and the motor shaft cannot be assembled downwards. Because the motor shaft 1 and the pump head shaft 2 can not be seen when being assembled, if a straight key is adopted, the position can not be conveniently adjusted, the pump head can be pulled out to be aligned again, and the pump head shaft 2 can be directly inserted into the small quincunx cylindrical groove of the second section only by slightly rotating the motor shaft 1 or the pump head shaft 2 to a proper position by adopting the assembly mode of the pattern groove 3 and the pattern shaft 4.
Example 2
This embodiment provides a power assisted steering system, this power assisted steering system uses embodiment 1 the connection structure of motor and electric power assisted steering oil pump, owing to set up regular flower type groove 3 along the axial at the front end of motor shaft 1, simultaneously at the front end of pump head axle 2 along axial fixity be used for inserting flower type axle 4 in flower type groove 3, owing to flower type groove 3 has regular flower type structure, make flower type groove 3 and flower type axle 4 need not to aim at when the assembly, when the assembly angle of flower type groove 3 and flower type axle 4 is inconsistent, only need rotate motor shaft 1 or pump head axle 2, can accomplish the assembly, make the installation of motor and pump head become simple, can reduce the installation step, the installation time of motor and pump head simultaneously.
Example 3
This embodiment provides an automobile, this automobile uses embodiment 2 power assisted steering system, owing to set up regular flower type groove 3 along the axial at the front end of motor shaft 1, simultaneously at the front end of pump head axle 2 along the axial fixity be used for inserting flower type axle 4 in flower type groove 3, owing to flower type groove 3 has regular flower type structure, make flower type groove 3 and flower type axle 4 need not to aim at when the assembly, when flower type groove 3 is inconsistent with the assembly angle of flower type axle 4, only need rotate motor shaft 1 or pump head axle 2, can accomplish the assembly, make the installation of motor and pump head become simple, can reduce the installation step of motor and pump head simultaneously, installation time.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a connection structure of motor and electric power assisted steering oil pump, includes motor shaft and pump head axle, its characterized in that: the motor shaft is characterized in that a regular flower-shaped groove is formed in the front end of the motor shaft in the axial direction, and a flower-shaped shaft inserted into the flower-shaped groove is fixed at the front end of the pump head shaft in the axial direction.
2. A connection structure of a motor and an electric power steering oil pump according to claim 1, characterized in that: the flower type groove includes first section and second section, the diameter in the first section in flower type groove is greater than the second section in flower type groove, the first section in flower type groove is located the foremost end of motor shaft.
3. A connecting structure of an electric motor and an electric power steering oil pump according to claim 2, characterized in that: the diameter of the first section of the flower-shaped groove is larger than that of the flower-shaped shaft, and the diameter of the second section of the flower-shaped groove is the same as that of the flower-shaped shaft.
4. A connecting structure of an electric motor and an electric power steering oil pump according to claim 2, characterized in that: the first section in flower type groove is the gradual narrowing setting, narrower one end in the first section in flower type groove with the second section intercommunication in flower type groove.
5. A connection structure of a motor and an electric power steering oil pump according to claim 4, characterized in that: the diameter of the narrower end of the first section of the flower-shaped groove is the same as that of the second section of the flower-shaped groove.
6. A connecting structure of an electric motor and an electric power steering oil pump according to claim 2, characterized in that: the length of the flower-shaped shaft is greater than the first section of the flower-shaped groove.
7. A connection structure of a motor and an electric power steering oil pump according to claim 1, characterized in that: the flower-shaped groove is a quincunx cylindrical groove, and the flower-shaped shaft is a quincunx cylindrical shaft matched with the quincunx cylindrical groove.
8. A connection structure of a motor and an electric power steering oil pump according to claim 1, characterized in that: the flower-shaped shaft and the pump head shaft are integrally formed.
9. A power steering system characterized by: a connection structure including the motor according to any one of claims 1 to 8 and an electric power steering oil pump.
10. An automobile, characterized in that: comprising the power steering system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911101739.0A CN110979453A (en) | 2019-11-12 | 2019-11-12 | Connection structure of motor and electric power steering oil pump, power steering system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911101739.0A CN110979453A (en) | 2019-11-12 | 2019-11-12 | Connection structure of motor and electric power steering oil pump, power steering system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110979453A true CN110979453A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911101739.0A Pending CN110979453A (en) | 2019-11-12 | 2019-11-12 | Connection structure of motor and electric power steering oil pump, power steering system and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110979453A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0193668A (en) * | 1987-10-05 | 1989-04-12 | Nippon Pillar Packing Co Ltd | Processing method for oil seal |
| CN203111307U (en) * | 2013-03-25 | 2013-08-07 | 瑞立集团瑞安汽车零部件有限公司 | Electric control steering oil pump |
| CN203511802U (en) * | 2013-08-12 | 2014-04-02 | 南通市通润汽车零部件有限公司 | Control device for on-vehicle spare tire locator |
| CN104417487A (en) * | 2013-08-30 | 2015-03-18 | 比亚迪股份有限公司 | Seat belt retractor, seat belt device applying same and vehicle |
| CN204716783U (en) * | 2015-04-30 | 2015-10-21 | 中国航空动力机械研究所 | Spline device |
-
2019
- 2019-11-12 CN CN201911101739.0A patent/CN110979453A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0193668A (en) * | 1987-10-05 | 1989-04-12 | Nippon Pillar Packing Co Ltd | Processing method for oil seal |
| CN203111307U (en) * | 2013-03-25 | 2013-08-07 | 瑞立集团瑞安汽车零部件有限公司 | Electric control steering oil pump |
| CN203511802U (en) * | 2013-08-12 | 2014-04-02 | 南通市通润汽车零部件有限公司 | Control device for on-vehicle spare tire locator |
| CN104417487A (en) * | 2013-08-30 | 2015-03-18 | 比亚迪股份有限公司 | Seat belt retractor, seat belt device applying same and vehicle |
| CN204716783U (en) * | 2015-04-30 | 2015-10-21 | 中国航空动力机械研究所 | Spline device |
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Application publication date: 20200410 |