CN216185432U - Power assembly and power system of steering gear - Google Patents
Power assembly and power system of steering gear Download PDFInfo
- Publication number
- CN216185432U CN216185432U CN202122313339.5U CN202122313339U CN216185432U CN 216185432 U CN216185432 U CN 216185432U CN 202122313339 U CN202122313339 U CN 202122313339U CN 216185432 U CN216185432 U CN 216185432U
- Authority
- CN
- China
- Prior art keywords
- steering gear
- power
- motor
- hole
- support section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Power Steering Mechanism (AREA)
Abstract
The utility model relates to the field of steering gears, aims to solve the problems that the transmission concentricity of the existing steering gear transmission structure is poor and the existing steering gear transmission structure is not suitable for a power shaft with a large length, and provides a steering gear power assembly and a power system. The power assembly of the steering gear comprises a motor, an adapter and a power shaft. The motor is provided with an output shaft, and the periphery of the output shaft is provided with a spline. The adapter is connected to the end face of the motor; the adapter is provided with a middle through hole, and a bearing is installed in the middle through hole. The power shaft comprises a support section and a power output section which are axially connected; a spline hole is formed in the center of the end face of one end of the support section of the power shaft; the support section is in running fit in the bearing and forms spline fit with the output shaft through a spline hole of the support section. The contact surfaces of the bearing and the support section and the contact surfaces of the output shaft and the support section are at least partially radially coincident. The utility model has the advantages of high transmission concentricity and suitability for longer power shafts.
Description
Technical Field
The utility model relates to the field of steering gears, in particular to a power assembly and a power system of a steering gear.
Background
The automobile steering gear is an important component for automobile steering. In the prior art, in a structure that a motor used by a steering gear drives a belt pulley to rotate, the motor and the belt pulley are matched by a key groove and a key to realize power transmission. This form has the problem of poor drive concentricity and is not well suited for power shafts of large length.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a power assembly of a steering gear, which aims to solve the problems that the transmission concentricity of the existing steering gear transmission structure is poor and the existing steering gear transmission structure is not suitable for a power shaft with a large length.
The utility model is realized by the following steps:
a power assembly of a steering gear comprises a motor, an adapter and a power shaft. The motor is provided with an output shaft, and the periphery of the output shaft is provided with a spline. The adapter is connected to the end face of the motor; the adapter is provided with a middle through hole, and a bearing is installed in the middle through hole. The power shaft comprises a support section and a power output section which are axially connected; a spline hole is formed in the center of the end face of one end of the support section of the power shaft; the support section is in running fit in the bearing and forms spline fit with the output shaft through a spline hole of the support section. The contact surfaces of the bearing and the support section and the contact surfaces of the output shaft and the support section are at least partially radially coincident.
In the power assembly of the steering gear, the adapter is connected to the motor and rotatably supports the power shaft through the bearing, so that the support length of the power shaft is substantially prolonged, and the structure can be suitable for longer power shafts; on the other hand, the bearing in the adapter and the output shaft of the motor are used for positioning and supporting the power shaft from inside to outside respectively, and in addition, the spline fit is adopted, so that the concentricity of the power shaft and the output shaft of the motor can be improved, and the transmission is more stable.
Further:
the adaptor is provided with a convex edge which is formed by extending inwards from one end of the middle through hole far away from the motor along the radial direction; a clamp spring is clamped at the periphery of the power shaft;
the bearing is axially positioned between the flange and the snap spring.
Further:
the end face of the motor is provided with a central boss which extends outwards along the axial direction, and the adapter is provided with an end face groove which is matched with the central boss.
Further:
the periphery of the power output section is integrally provided with a driving belt wheel of a belt pulley assembly.
Further:
the motor is provided with a motor connecting flange plate, and the adapter is fixedly connected with the motor connecting flange plate by one side of the adapter close to the motor.
Further:
two bearings are arranged in the middle through hole, and the two bearings are arranged at intervals along the axial direction of the middle through hole;
the inner side of the middle through hole is positioned between the two bearings and extends inwards along the radial direction to form a spacer ring;
the power shaft is provided with a space ring and a corresponding clamp spring, and the clamp springs are clamped at the positions, located on the outer sides of the two bearings, of the power shaft respectively, so that the two bearings are axially positioned between the space ring and the corresponding clamp springs respectively.
Further:
the power shaft is of a hollow structure.
The embodiment of the application also provides a power system of the steering gear, which comprises a steering gear shell and the power assembly of the steering gear. The steering gear shell is provided with an end wall and limits an accommodating space. The adapter is connected between the motor and the end wall, and the power shaft penetrates through the end wall and then enters the accommodating space. The belt pulley assembly comprises a driving belt pulley, and the driving belt pulley is arranged on the part, located in the accommodating space, of the power output section of the power shaft.
The steering gear power system in the embodiment has the beneficial effects of being suitable for a longer power shaft and being good in transmission concentricity due to the fact that the steering gear power assembly is arranged.
Further:
the steering gear shell comprises a main shell part and an end cover shell part, and the main shell part and the end cover shell part are detachably spliced and connected along the axial direction of the power shaft and jointly enclose an accommodating space; the end wall is located at the main housing member.
Further:
the end wall is provided with a connecting lug extending outwards along the radial direction, the adaptor is provided with an ear part corresponding to the connecting lug, and the connecting lug and the ear part are connected with each other.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a three-dimensional view of a steering gear power system in an embodiment of the present application;
FIG. 2 is an expanded view of the steering gear power system of FIG. 1;
FIG. 3 is a cross-sectional view of the power system of the steering gear of FIG. 1;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a three-dimensional view of the power assembly of the steering gear in an embodiment of the present application;
FIG. 6 is a cross-sectional view of FIG. 5;
FIG. 7 is a three-dimensional view of another embodiment of a steering gear power assembly in an embodiment of the present application;
fig. 8 is a cross-sectional view of fig. 7.
Description of the main element symbols:
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Some embodiments of the present application are described in detail. In the following embodiments, features of the embodiments may be combined with each other without conflict.
Examples
Referring collectively to fig. 1-4, the present embodiment provides a steering gear power system 10 that includes a steering gear housing 11 and a steering gear power assembly 12.
The steering housing 11 has an end wall 13 and defines an accommodating space 14 for accommodating a pulley assembly (not shown) of the steering gear. The pulley assembly is a conventional transmission assembly, and mainly includes a driving pulley 16, a driven pulley (not shown), and a transmission belt (not shown). The driving pulley 16 is rotated by a power member (e.g., a motor) and transmits the rotation to the driven pulley via a transmission belt. Optionally, the steering gear housing 11 comprises a main housing part 17 and an end cover housing part 18, both of which are detachably connected in a split manner and together enclose the accommodating space 14, wherein the end wall 13 is located in the main housing part 17.
Referring to fig. 5 and 6 in combination, the embodiment of the present application provides a power assembly 12 of a steering gear, which includes a motor 19, an adapter 20 and a power shaft 21. The motor 19 has an output shaft 22 for outputting rotation. The output shaft 22 is provided with splines on the outer periphery. The adaptor 20 is attached to the end face of the motor 19. The adaptor 20 is provided with a middle through hole 23, and a bearing 24 is installed in the middle through hole 23. The power shaft 21 comprises a support section 25 and a power output section 26 which are axially connected; the center of the end face of one end of the support section 25 of the power shaft 21 is provided with a spline hole 27. The support section 25 is rotationally fitted within the bearing 24 and is in splined engagement with the output shaft 22 via its splined bore 27. The contact surfaces of the bearing 24 and the support section 25 are at least partially radially coincident with the contact surfaces of the output shaft 22 and the support section 25. In the power assembly 12 of the steering gear in the scheme, the adaptor 20 is connected to the motor 19 on one hand and rotatably supports the power shaft 21 through the bearing 24, so that the support length of the power shaft 21 is substantially prolonged, and the structure is suitable for a longer power shaft 21; on the other hand, because the contact surfaces of the bearing 24 and the support section 25 are at least partially overlapped with the contact surfaces of the output shaft 22 and the support section 25 in the radial direction, the bearing 24 in the adapter 20 and the output shaft 22 of the motor 19 are respectively positioned and supported on the power shaft 21 from inside to outside, and in addition, the spline fit is adopted, the concentricity of the power shaft 21 and the output shaft 22 of the motor 19 can be improved, and the transmission is more stable.
In this embodiment, the driving pulley 16 of the pulley assembly may be integrally provided on the outer periphery of the power output section 26.
Optionally, the adaptor 20 has a flange 28 extending radially inwardly from an end of the central bore 23 remote from the motor 19. The periphery of the power shaft 21 is clamped with a clamp spring 29. The bearing 24 is positioned axially between the ledge 28 and the circlip 29.
Of course, in other embodiments, the flange 28 may be eliminated, and the bearing 24 may be axially positioned by providing a snap spring 29 on each side of the bearing 24.
In this embodiment, the end face of the motor 19 has a central boss 30 extending axially outward, and the adaptor 20 has an end face groove 31 adapted to the central boss 30. Through the cooperation of the end face groove 31 and the central boss 30, the motor 19 and the adapter 20 can be conveniently positioned, and the accurate connection between the two is ensured. Optionally, the electric motor 19 has a motor connection flange 33, with which the adapter piece 20 is fastened with its side facing the electric motor 19.
In this embodiment, the power shaft 21 may be a hollow structure. It may be machined from one end to form a blind hole and then the other end to form the splined hole 27 as described above.
In this embodiment, the adaptor 20 is connected between the motor 19 and the end wall 13, and the power shaft 21 passes through the end wall 13 and enters the accommodating space 14. For the purpose of facilitating the connection, the end wall 13 has a connecting lug 34 projecting radially outwards, the adapter 20 has an ear 35 corresponding to the connecting lug 34, and the connecting lug 34 and the ear 35 are connected to one another.
Referring to fig. 7 and 8 in combination, the present application also provides another embodiment of a power steering gear assembly having substantially the same structure as the power steering gear assembly described above, except that two bearings 24 are provided in the intermediate through hole 23 of the adapter 20, and the two bearings 24 are spaced apart from each other in the axial direction of the intermediate through hole 23. A spacer ring 36 is formed extending radially inwardly inside the intermediate through hole 23 at a position between the two bearings 24. The power shaft 21 is clamped with clamp springs 29 at positions outside the two bearings 24 respectively, so that the two bearings 24 are axially positioned between the spacer ring 36 and the corresponding clamp springs 29 respectively.
This arrangement provides a longer support length for the power shaft 21 and the support of the two bearings 24 makes its rotational support more stable.
Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application.
Claims (10)
1. A steering gear power assembly, comprising:
the motor is provided with an output shaft, and the periphery of the output shaft is provided with a spline;
the adapter is connected to the end face of the motor; the adapter is provided with a middle through hole, and a bearing is arranged in the middle through hole;
the power shaft comprises a support section and a power output section which are axially connected; a spline hole is formed in the center of the end face of one end of the support section of the power shaft; the support section is in rotating fit in the bearing and forms spline fit with the output shaft through a spline hole of the support section;
the contact surfaces of the bearing and the support section and the contact surfaces of the output shaft and the support section are at least partially radially coincident.
2. The steering gear power assembly of claim 1, wherein:
the adaptor is provided with a convex edge which is formed by extending inwards from one end of the middle through hole far away from the motor along the radial direction; a clamp spring is clamped at the periphery of the power shaft;
the bearing is axially positioned between the flange and the snap spring.
3. The steering gear power assembly of claim 1, wherein:
the end face of the motor is provided with a central boss which extends outwards along the axial direction, and the adapter is provided with an end face groove which is matched with the central boss.
4. The steering gear power assembly of claim 1, wherein:
the periphery of the power output section is integrally provided with a driving belt wheel of a belt pulley assembly.
5. The steering gear power assembly of claim 1, wherein:
the motor is provided with a motor connecting flange plate, and the adapter is fixedly connected with the motor connecting flange plate by one side of the adapter close to the motor.
6. The steering gear power assembly of claim 1, wherein:
two bearings are arranged in the middle through hole, and the two bearings are arranged at intervals along the axial direction of the middle through hole;
the inner side of the middle through hole is positioned between the two bearings and extends inwards along the radial direction to form a spacer ring;
the power shaft is provided with a space ring and a corresponding clamp spring, and the clamp springs are clamped at the positions, located on the outer sides of the two bearings, of the power shaft respectively, so that the two bearings are axially positioned between the space ring and the corresponding clamp springs respectively.
7. The steering gear power assembly of claim 1, wherein:
the power shaft is of a hollow structure.
8. A steering gear power system, comprising:
the steering gear comprises a steering gear shell, a steering gear shell and a steering gear, wherein the steering gear shell is provided with an end wall and defines an accommodating space;
the steering power assembly of any one of claims 1-7;
the adapter is connected between the motor and the end wall, and the power shaft penetrates through the end wall and then enters the accommodating space;
the belt pulley assembly comprises a driving belt pulley, and the driving belt pulley is arranged on the part, located in the accommodating space, of the power output section of the power shaft.
9. The steering gear power system as claimed in claim 8, wherein:
the steering gear shell comprises a main shell part and an end cover shell part, and the main shell part and the end cover shell part are detachably spliced and connected along the axial direction of the power shaft and jointly enclose an accommodating space; the end wall is located at the main housing member.
10. The steering gear power system as claimed in claim 9, wherein:
the end wall is provided with a connecting lug extending outwards along the radial direction, the adaptor is provided with an ear part corresponding to the connecting lug, and the connecting lug and the ear part are connected with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122313339.5U CN216185432U (en) | 2021-09-23 | 2021-09-23 | Power assembly and power system of steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122313339.5U CN216185432U (en) | 2021-09-23 | 2021-09-23 | Power assembly and power system of steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216185432U true CN216185432U (en) | 2022-04-05 |
Family
ID=80922223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122313339.5U Active CN216185432U (en) | 2021-09-23 | 2021-09-23 | Power assembly and power system of steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216185432U (en) |
-
2021
- 2021-09-23 CN CN202122313339.5U patent/CN216185432U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030196842A1 (en) | Driving apparatus for vehicle | |
| CN104024699B (en) | The driving force transfer device of electric vehicle | |
| JP4981436B2 (en) | Reducer motor | |
| EP4394208A1 (en) | Power shaft structure of electric drive assembly | |
| CN106516065A (en) | Magnetic coupling steering device used underwater | |
| CN111845333A (en) | Hub reduction assembly | |
| CN216185432U (en) | Power assembly and power system of steering gear | |
| US9188213B2 (en) | Differential apparatus | |
| KR101786197B1 (en) | Motor with reducer | |
| CN213672263U (en) | Bevel gear machining clamp | |
| CN216185440U (en) | Power assembly and power system of steering gear | |
| CN211405744U (en) | Connecting end cover and integrated speed reducing motor | |
| CN111577838B (en) | Compact planetary gear reducer and planet carrier thereof | |
| CN112928859A (en) | Differential function rotor and driving motor | |
| CN114396461A (en) | Industrial robot hollow cycloid speed reduction all-in-one machine | |
| CN209879361U (en) | Gear knob transmission combined mechanism | |
| CN217207653U (en) | Power shaft structure of electric drive assembly | |
| JP2004116737A (en) | Planetary gear device and power train | |
| CN202900399U (en) | Water pump installation structure of stepless speed change water cooled engine | |
| CN217977281U (en) | Electric machine | |
| CN213007560U (en) | Power assembly of vehicle and vehicle | |
| CN215705480U (en) | Concave cavity cover and driving axle | |
| CN219436791U (en) | Speed reducing motor | |
| CN218347886U (en) | Input shaft for automobile transmission | |
| CN214014019U (en) | Running roller motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |