CN216185440U - Power assembly and power system of steering gear - Google Patents
Power assembly and power system of steering gear Download PDFInfo
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- CN216185440U CN216185440U CN202122314584.8U CN202122314584U CN216185440U CN 216185440 U CN216185440 U CN 216185440U CN 202122314584 U CN202122314584 U CN 202122314584U CN 216185440 U CN216185440 U CN 216185440U
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Abstract
The utility model relates to the field of steering gears, aims to solve the problems that an existing steering gear transmission structure is not easy to position axially and is not suitable for a long power shaft, and provides a steering gear power assembly and a power system. The power assembly of the steering gear comprises a motor, a power shaft, a first connecting piece and a second connecting piece. The power shaft has a first end, a second end, and a power output section. The first connecting piece is provided with a middle through hole, and the first end is matched with the middle through hole through a first bearing; the second connecting piece is provided with a mounting hole, and the second end is matched with the mounting hole through a second bearing. The first connecting piece is connected to the end face of the motor, and an output shaft of the motor penetrates through the middle through hole and is concentrically connected with the first end of the power shaft in a transmission mode. The utility model has the advantages that the power shaft is axially fixed and is suitable for a longer power shaft.
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 dismantling the difficulty, the axial is difficult to fix a position and is not suitable for the power shaft that length is great.
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 existing steering gear transmission structure is difficult to disassemble and difficult to position axially and is not suitable for a power shaft with larger length.
The utility model is realized by the following steps:
a steering gear power assembly for connection to a steering gear housing having first and second spaced opposed end walls defining a receiving space therebetween includes a motor, a power shaft, a first connector and a second connector. The motor has an output shaft. The power shaft has axially opposed first and second ends with a power take off section therebetween. The first connecting piece is provided with a middle through hole; the first end of the power shaft is rotatably matched with the middle through hole through a first bearing. The second connecting piece is provided with a mounting hole, and the second end of the power shaft is rotatably matched with the mounting hole through a second bearing. The first connecting piece is connected to the end face of the motor, and an output shaft of the motor penetrates through the middle through hole and is concentrically connected with the first end of the power shaft in a transmission mode. When the power output section is connected to the steering gear shell, the first connecting piece and the second connecting piece are correspondingly connected to the outer sides of the first end wall and the second end wall, and the power output section is located in the accommodating space.
When the power assembly of the steering gear in the scheme is used, the power assembly is respectively connected to the steering gear shell through the first connecting piece and the second connecting piece, and the power output section is located in the accommodating space and used for being connected with power output structures such as a driving belt wheel and the like and used for providing power.
In the power assembly of the steering gear, the first connecting piece is used for assisting the installation of the motor on one hand, and is used for supporting the first bearing to rotatably support one end of the power shaft on the other hand; meanwhile, the middle through hole of the first connecting piece allows the output shaft of the motor to be connected with the power shaft in a matched mode, and the concentricity of the power shaft and the output shaft can be well guaranteed.
In addition, the steering gear power component in this scheme has carried out the rotation support to the power shaft respectively at both ends, can be applicable to the longer condition of power shaft to, can realize the axial fixity of power shaft through the relatively fixed of first connecting piece and second connecting piece and steering gear casing, avoid the axial in the use to beat.
Further:
the periphery of the output shaft is provided with a spline, a spline hole is formed in the center of the end face at the first end of the power shaft, and the output shaft and the spline hole are in spline fit connection.
This scheme realizes the transmission of axle and axle through the mode of terminal surface key hole of blooming to be connected, has avoided adopting the problem that the intensity is low and life is short that the mode that the key realized the transmission and is connected exists among the prior art.
Further:
one end of the middle through hole, which is far away from the second connecting piece, is provided with a first convex edge which is formed by extending inwards in the radial direction, and the outer ring of the first bearing is axially propped against the first convex edge;
the first end of the power shaft is provided with a first shaft shoulder, and the first shaft shoulder axially abuts against the inner ring of the first bearing.
Further:
one end of the mounting hole, which is far away from the first connecting piece, is provided with a second convex edge which is formed by extending inwards in the radial direction, and the outer ring of the second bearing is axially abutted against the second convex edge;
and a second shoulder is arranged at the second end of the power shaft and axially abuts against the inner ring of the second bearing.
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 one side of the first connecting piece, which is close to the motor, is fixedly connected with the motor connecting flange plate;
the first connecting piece is used for being connected to the first end wall on the side away from the motor.
The present application further provides a steering gear power system that includes a steering gear housing, the aforementioned steering gear power assembly, and a pulley assembly. The diverter housing has spaced opposed first and second end walls defining a receiving space therebetween. The first connector is connected between the motor and the first end wall, and the second connector is connected to the second end wall. 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 this application has because aforementioned steering gear power component, has the longer condition that is applicable to the power shaft equally, and can avoid the beneficial effect of the axial runout in the use.
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 first end wall is located on the main shell, the second end wall is located on the end cover shell, and the first end wall and the second end wall are opposite to each other at intervals along the axial direction of the power shaft.
Further:
the first end wall has a lug that radially outwardly extends, the first connector has an ear portion that corresponds to the lug, the lug with ear interconnect.
Further:
the second end wall is provided with a through hole, and the second connecting piece is attached to the outer surface of the second end wall and seals the through hole; and the second end of the power shaft passes through the through hole and then is connected to the second bearing.
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 steering gear power system 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 the power assembly of the steering gear of FIG. 5.
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 gear housing 11 has a first end wall 13 and a second end wall 14 which are opposite to each other at intervals, and a containing space 15 is defined between the first end wall 13 and the second end wall 14 and used for containing a belt pulley assembly of the steering gear. The pulley assembly is a conventional transmission assembly, and mainly includes a driving pulley 17, a driven pulley (not shown in the figure), and a transmission belt (not shown in the figure). The driving pulley 17 is rotated by a power member (e.g., a motor 20) and transmits the rotation to the driven pulley through a transmission belt. Optionally, the steering gear housing 11 comprises a main housing part 18 and an end cover housing part 19, both the main housing part 18 and the end cover housing part 19 being detachably connected in a split manner and together enclosing the receiving space 15, wherein the first end wall 13 is located on the main housing part 18 and the second end wall 14 is located on the end cover housing part 19.
The steering gear power assembly 12 in this embodiment is for use in connection to the steering gear housing 11. Referring collectively to fig. 5 and 6, the steering gear power assembly 12 includes a motor 20, a power shaft 21, a first link 22, and a second link 23. The motor 20 has an output shaft 24. The power shaft 21 has a first end 25 and a second end 26 opposite to each other in the axial direction, a power output section 27 is arranged between the first end 25 and the second end 26, and the driving pulley 17 can be mounted in the power output section 27 and positioned in the accommodating space 15. The first connecting member 22 defines a central opening 28. The first end 25 of the power shaft 21 is rotatably fitted at the intermediate through hole 28 by a first bearing 29. The second connecting member 23 defines a mounting hole 30, and the second end 26 of the power shaft 21 is rotatably engaged with the mounting hole 30 via a second bearing 31. Wherein the first connecting member 22 is connected to the end surface of the motor 20, and the output shaft 24 of the motor 20 penetrates the middle through hole 28 and is concentrically connected with the first end 25 of the power shaft 21 in a transmission manner. When connected to the steering gear housing 11, the first connecting member 22 and the second connecting member 23 are correspondingly connected to the outer sides of the first end wall 13 and the second end wall 14, and the power output section 27 is located in the accommodating space 15.
When the power assembly 12 of the steering gear in the present embodiment is used, the first connecting member 22 and the second connecting member 23 are respectively connected to the steering gear housing 11, and the power output section 27 is located in the accommodating space 15, and is used for connecting power output structures such as the driving pulley 17 and the like, and providing power.
In the power assembly 12 of the steering gear in the present embodiment, the first connecting member 22 is used for assisting the installation of the motor 20 on one hand and supporting the first bearing 29 to rotatably support one end of the power shaft 21 on the other hand; meanwhile, the middle through hole 28 of the first connecting piece 22 also allows the output shaft 24 of the motor 20 to be matched and connected with the power shaft 21, and the concentricity of the power shaft 21 and the output shaft 24 can be well ensured.
In addition, the power shaft 21 is rotatably supported at two ends of the power assembly 12 of the steering gear in the scheme, the power assembly is suitable for the situation that the power shaft 21 is long, and the axial fixation of the power shaft 21 can be realized by relatively fixing the first connecting piece 22, the second connecting piece 23 and the steering gear shell 11, so that the axial runout in the use process is avoided.
In this embodiment, the periphery of the output shaft is provided with a spline, a spline hole 32 is formed in the center of the end surface at the first end 25 of the power shaft 21, and the output shaft 24 and the spline hole 32 are in spline fit connection. This scheme passes through the mode that the terminal surface bloomed keyhole 32, realizes that the transmission of axle and axle is connected, has avoided adopting the key to realize the problem that the intensity is low and life is short that the mode of transmission connection exists among the prior art.
In this embodiment, an end of the middle through hole 28 away from the second connector 23 has a first protruding edge 33 extending radially inward, and the outer ring of the first bearing 29 axially abuts against the first protruding edge 33. The first end 25 of the power shaft 21 is provided with a first shoulder 34, which first shoulder 34 axially abuts against the inner ring of the first bearing 29. By this arrangement, axial mounting and positioning of the first bearing 29 can be easily achieved, and thus the axial position of the first end 25 of the power shaft 21 mounted on the first bearing 29 can be determined. Similarly, the end of the mounting hole 30 away from the first connecting member 22 has a second protruding edge 36 extending radially inward, the outer ring of the second bearing 31 axially abuts against the second protruding edge 36, the second end 26 of the power shaft 21 is provided with a second shoulder 37, and the second shoulder 37 axially abuts against the inner ring of the second bearing 31. By this arrangement, the axial mounting and positioning of the second bearing 31 can be easily achieved, and the axial position of the second end 26 of the power shaft 21 mounted on the second bearing 31 can be determined. In this way, the axial positioning of the power shaft 21 can be conveniently and reliably realized by the structural arrangement of the first connecting piece 22 and the second connecting piece 23.
In an alternative embodiment, the power take-off section 27 is provided with the drive pulley 17 of a pulley assembly integrally provided on the outer circumference thereof. The power shaft 21 and the driving belt wheel 17 are integrally processed and formed, so that the connecting structure is reduced, the structural integrity and reliability are improved, and the problem of eccentricity caused by key transmission is solved.
In the present exemplary embodiment, the electric motor 20 has a motor connection flange 39, and the first connecting part 22 is fastened to the motor connection flange 39 on its side facing the electric motor 20. The side of the first connector 22 remote from the motor 20 is intended to be connected to the first end wall 13.
In the steering power system 10 of the present embodiment, the first connecting member 22 is connected between the motor 20 and the first end wall 13, and the second connecting member 23 is connected to the second end wall 14. Alternatively, the first end wall 13 has an engaging lug 40 projecting radially outwards, the first connecting element 22 has an ear 41 corresponding to the engaging lug 40, and the engaging lug 40 and the ear 41 are connected to one another, for example by means of screws.
In this embodiment, the second end wall 14 is provided with a through hole 35, the second connecting member 23 is attached to the outer surface of the second end wall 14 and seals the through hole 35, and the second end 26 of the power shaft 21 passes through the through hole 35 and then is connected to the second bearing 31.
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 for attachment to a steering gear housing having first and second spaced opposed end walls defining an accommodation space therebetween, the steering gear power assembly comprising:
a motor having an output shaft;
a power shaft having axially opposed first and second ends with a power output section therebetween;
the first connecting piece is provided with a middle through hole; the first end of the power shaft is rotatably matched with the middle through hole through a first bearing;
the second connecting piece is provided with a mounting hole, and the second end of the power shaft is rotatably matched with the mounting hole through a second bearing; the first connecting piece is connected to the end face of the motor, and an output shaft of the motor penetrates through the middle through hole and is concentrically connected with the first end of the power shaft in a transmission manner;
when the power output section is connected to the steering gear shell, the first connecting piece and the second connecting piece are correspondingly connected to the outer sides of the first end wall and the second end wall, and the power output section is located in the accommodating space.
2. The steering gear power assembly of claim 1, wherein:
the periphery of the output shaft is provided with a spline, a spline hole is formed in the center of the end face at the first end of the power shaft, and the output shaft and the spline hole are in spline fit connection.
3. The steering gear power assembly of claim 1, wherein:
one end of the middle through hole, which is far away from the second connecting piece, is provided with a first convex edge which is formed by extending inwards in the radial direction, and the outer ring of the first bearing is axially propped against the first convex edge; the first end of the power shaft is provided with a first shaft shoulder, and the first shaft shoulder axially abuts against the inner ring of the first bearing.
4. The steering gear power assembly of claim 1, wherein:
one end of the mounting hole, which is far away from the first connecting piece, is provided with a second convex edge which is formed by extending inwards in the radial direction, and the outer ring of the second bearing is axially abutted against the second convex edge;
and a second shoulder is arranged at the second end of the power shaft and axially abuts against the inner ring of the second bearing.
5. 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.
6. The steering gear power assembly of claim 1, wherein:
the motor is provided with a motor connecting flange plate, and one side of the first connecting piece, which is close to the motor, is fixedly connected with the motor connecting flange plate;
the first connecting piece is used for being connected to the first end wall on the side away from the motor.
7. A steering gear power system, comprising:
a diverter housing having spaced opposed first and second end walls defining an accommodation space therebetween;
the steering gear power assembly of any one of claims 1-6;
the first connecting piece is connected between the motor and the first end wall, and the second connecting piece is connected to the second end wall;
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.
8. The steering gear power system as claimed in claim 7, 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 first end wall is located on the main shell, the second end wall is located on the end cover shell, and the first end wall and the second end wall are opposite to each other at intervals along the axial direction of the power shaft.
9. The steering gear power system as claimed in claim 8, wherein:
the first end wall has a lug that radially outwardly extends, the first connector has an ear portion that corresponds to the lug, the lug with ear interconnect.
10. The steering gear power system as claimed in claim 8, wherein:
the second end wall is provided with a through hole, and the second connecting piece is attached to the outer surface of the second end wall and seals the through hole;
and the second end of the power shaft passes through the through hole and then is connected to the second bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122314584.8U CN216185440U (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 |
|---|---|---|---|
| CN202122314584.8U CN216185440U (en) | 2021-09-23 | 2021-09-23 | Power assembly and power system of steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216185440U true CN216185440U (en) | 2022-04-05 |
Family
ID=80923891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122314584.8U Active CN216185440U (en) | 2021-09-23 | 2021-09-23 | Power assembly and power system of steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216185440U (en) |
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2021
- 2021-09-23 CN CN202122314584.8U patent/CN216185440U/en active Active
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