CN217649510U - Electronic power-assisted steering system with sectional shaft design - Google Patents
Electronic power-assisted steering system with sectional shaft design Download PDFInfo
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- CN217649510U CN217649510U CN202221816130.9U CN202221816130U CN217649510U CN 217649510 U CN217649510 U CN 217649510U CN 202221816130 U CN202221816130 U CN 202221816130U CN 217649510 U CN217649510 U CN 217649510U
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- axial region
- shell
- worm wheel
- sensor
- steering shaft
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- 230000011218 segmentation Effects 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses an electron power assisted steering system of segmentation axle design, its technical scheme main points are: the utility model provides an electron power assisted steering system of segmentation axle design, includes shell, worm wheel, the shell rotates to be connected with and supplies the fixed segmentation axle subassembly of worm wheel, segmentation axle subassembly include steering shaft portion, sensor axial region, set up in the connection structure between steering shaft portion and the sensor axial region, steering shaft portion and sensor axial region end to end, the worm wheel can be emboliaed and be fixed in steering shaft portion by steering shaft portion towards sensor axial region one end, the bolt hole that is used for fixed shell is worn to establish with the bolt to the shell. The utility model discloses a design of segmentation axle reaches and avoids responding the worm wheel to interfere and the part is twisted and is moved the bolt that is used for fixed shell, reaches and reduces the shell and occupy the volume, realizes miniaturized design.
Description
Technical Field
The utility model relates to an automotive electronics helping hand system field especially involves an electron power assisted steering system of segmentation axle design.
Background
An electric power steering system (EPS system) is a power steering system that directly relies on a motor to provide an assist torque, and has many advantages over conventional hydraulic power steering systems. The EPS system can be divided into 3 types of steering shaft power-assisted type, gear power-assisted type and rack power-assisted type according to different installation positions of the power-assisted motors. The motor of the steering shaft power-assisted EPS is fixed on one side of the steering shaft, is connected with the steering shaft through a speed reducing mechanism and directly drives the steering shaft to perform power-assisted steering.
As shown in fig. 6 and 7, the conventional steering shaft assisted electric power steering system mainly includes a housing 1, a reduction motor 20, a worm wheel 2, a worm wheel shaft 19, and an end cap installed on the housing 1, wherein the worm wheel 2 is fixed on the worm wheel shaft 19, and the worm, the worm wheel 2, and the worm wheel shaft 19 are installed in an inner cavity of the housing 1 and sealed by the end cap. And when shell 1 installed in the automobile body, need install worm-wheel shaft 19 and worm wheel 2 in shell 1 in advance, then penetrate shell 1 inner chamber and realize fixing through the bolt, because worm wheel 2 shelters from shell 1 inner chamber, the bolt can't normally be installed, need increase ear's structure 18 at shell 1 to set up corresponding bolt hole 5 at shell 1, bolt hole 5 avoids worm wheel 2 promptly, realizes shell 1's bolt installation. However, the ear structure 18 is added, so that the overall volume of the housing 1 is increased, which is not favorable for realizing a miniaturized design.
Therefore, there is a need for an improved structure of an electric power steering system to overcome the above problems and achieve a miniaturized design of the electric power steering system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electron power assisted steering system of segmentation axle design reaches through the design of segmentation axle and avoids responding the worm wheel to interfere and the part is twisted and is moved the bolt that is used for fixed shell, reaches and reduces the shell and occupy the volume, realizes miniaturized design.
The above technical purpose of the utility model is realized through following technical scheme: the utility model provides an electron power assisted steering system of segmentation axle design, includes shell, worm wheel, the shell rotates to be connected with and supplies the fixed segmentation axle subassembly of worm wheel, segmentation axle subassembly includes steering shaft portion, sensor axial region, set up in connection structure between steering shaft portion and the sensor axial region, steering shaft portion and sensor axial region end to end, the worm wheel can be emboliaed and be fixed in steering shaft portion by steering shaft portion towards sensor axial region one end, the bolt hole that is used for fixed shell is worn to establish with the bolt to the shell is seted up.
The utility model discloses a further set up to: the connection structure comprises a connection groove arranged at one end, deviating from the steering shaft, of the sensor shaft part, a through hole arranged in the connection groove, a threaded hole arranged in the steering shaft part and corresponding to the through hole, and a connection bolt arranged in the through hole and connected with the threaded hole in a threaded manner.
The utility model discloses a further set up to: the sensor axial region has seted up the constant head tank towards turning to axial region one end, it is provided with to turn to axial region tip and insert the location lug of constant head tank.
The utility model discloses a further set up to: it turns to the rotation connection structure that the axial region and shell rotate to be connected to be provided with between axial region and the shell to keep turning to the axial region, rotate connection structure including set up in the connecting portion of shell, set up in bearing, threaded connection between connecting portion and the axial region that turns to connecting portion and can butt the locking plug screw, the threaded connection of bearing turn to the axial region and can butt the nut of bearing, the bearing both sides position is located with the nut branch to the locking plug screw.
The utility model discloses a further set up to: the locking screw plug is positioned on one side of the bearing towards the sensor shaft part.
The utility model discloses a further set up to: the locking plug screw is provided with and conveniently stirs the locking plug screw and makes locking plug screw threaded connection in the groove of stirring of connecting portion, the worm wheel is seted up and is supplied shaft-like thing to wear to establish and can insert the groove of wearing to establish of stirring the groove.
The utility model discloses a further set up to: the poking notch is arranged on the inner wall of the locking plug screw, and the penetrating notch is arranged on the inner wall of the worm wheel.
The utility model discloses a further set up to: the poking notch and the penetrating notch are both provided with at least two notches, and the penetrating notches are uniformly distributed around the steering shaft part.
To sum up, the utility model discloses following beneficial effect has:
1. when the assembly, earlier with turn to the axial region and install in the shell after, penetrate the bolt hole through corresponding bolt and with the corresponding installation station bolted connection of shell, later embolia the worm wheel with turning to the axial region and realize being fixed in the worm wheel and turning to the axial region, later be fixed in the axial region that turns to through connection structure with the sensor axial region, reach installation electron power assisted steering system, finally realize avoiding the worm wheel to shelter from the problem that the bolt hole leads to unable normal bolt of twisting, remove and set up ear's structure separately from, reach the effect that effectively reduces whole volume.
2. Insert the constant head tank through the locating convex block in, realize accurate location and turn to position between axial region and the sensor axial region, ensure that the location turns to axial region and sensor axial region and is the linear range, realize effectively fixed between axial region and the sensor axial region through connecting bolt in addition that the location turns to, can reduce the space that connecting bolt occupy through seting up the spread groove, further reach the volume miniaturization.
3. The position relation among the steering shaft part, the bearing and the shell is effectively fixed through the locking screw plug and the nut, and the relative movement of the steering shaft part is avoided while the steering shaft part is ensured to rotate relative to the shell.
5. Through the through-groove opening and the stirring groove opening, the rod-shaped structure can conveniently penetrate through the through-groove opening and be inserted into the stirring groove opening, meanwhile, the stirring of the worm wheel and the rotation of the locking plug screw can be realized, and the locking plug screw and the connecting part can be disassembled and assembled after the locking plug screw rotates; the through notch and the poking notch are respectively arranged on the inner walls of the worm wheel and the locking screw plug, so that the effect of convenient processing is achieved; through the structure, the effect of integrally facilitating disassembly and assembly is realized, and later maintenance is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of section A of FIG. 2;
fig. 4 is a schematic view of the housing of the present invention;
FIG. 5 is an exploded view of the segmented shaft assembly of the present invention;
FIG. 6 is a schematic diagram of the prior art;
fig. 7 is a cross-sectional view of the prior art.
The corresponding part names indicated by the numbers in the figures: 1. a housing; 2. a worm gear; 3. a steering shaft portion; 4. a sensor shaft portion; 5. bolt holes; 6. connecting grooves; 7. a through hole; 8. a threaded hole; 9. a connecting bolt; 10. positioning a groove; 11. positioning the bump; 12. a connecting portion; 13. locking a screw plug; 14. a bearing; 15. a nut; 16. poking the notch; 17. the notch is penetrated; 18. an ear structure; 19. a worm gear shaft; 20. a speed reducing motor.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining the drawings and the specific embodiments.
As shown in fig. 1 to 5, the utility model provides an electron power assisted steering system of segmentation axle design, including shell 1, worm wheel 2, shell 1 rotates and is connected with the segmentation axle subassembly that supplies worm wheel 2 to fix. The segmented shaft assembly comprises a steering shaft part 3, a sensor shaft part 4 and a connecting structure arranged between the steering shaft part 3 and the sensor shaft part 4, wherein the steering shaft part 3 and the sensor shaft part 4 are connected end to end. The worm wheel 2 can be sleeved and fixed on the steering shaft part 3 from the steering shaft part 3 towards one end of the sensor shaft part 4, and the worm wheel 2 is in interference fit with the steering shaft part 3. The shell 1 is provided with a bolt hole 5 which is penetrated by a bolt and used for fixing the shell 1, and the bolt hole 5 is shielded by the worm wheel 2. When the assembly, install in shell 1 back with turning to axial region 3 earlier, penetrate in bolt hole 5 and with the corresponding installation station bolted connection of shell 1 through corresponding bolt, later embolia turning to axial region 3 with worm wheel 2 and realize being fixed in turning to axial region 3 with worm wheel 2 again, later be fixed in turning to axial region 3 through connection structure with sensor axial region 4, reach installation electron power assisted steering system, finally realize avoiding worm wheel 2 to shelter from the problem that bolt hole 5 leads to unable normal bolt of twisting, remove and set up the ear structure separately from, reach the effect that effectively reduces whole volume.
Connection structure is including seting up sensor axial region 4 deviates from spread groove 6 of steering spindle one end, seting up in the through-hole 7 of spread groove 6, seting up in steering spindle 3 and the screw hole 8 that corresponds with through-hole 7, wear to locate through-hole 7 and with 8 threaded connection's of screw hole connecting bolt 9, through-hole 7 is located sensor axial region 4 central point and puts. The sensor axial region 4 has been seted up constant head tank 10 towards turning to axial region 3 one end, and constant head tank 10 is located sensor axial region 4 central point and is circular, turn to axial region 3 tip and be provided with and insert the positioning lug 11 of constant head tank 10. Insert the constant head tank 10 through location lug 11 in, realize accurate location and turn to position between axial region 3 and the sensor axial region 4, ensure that the location turns to axial region 3 and is the linear range with sensor axial region 4, realize effectively fixed between axial region 3 and the sensor axial region 4 through connecting bolt 9 in addition, can reduce the space that connecting bolt 9 occupy through seting up spread groove 6, further reach the volume miniaturization.
In order to effectively install the steering shaft on the housing 1, a rotating connection structure for keeping the steering shaft 3 rotatably connected with the housing 1 is arranged between the steering shaft 3 and the housing 1, and the rotating connection structure comprises a connecting part 12 arranged on the housing 1, a bearing 14 arranged between the connecting part 12 and the steering shaft 3, a locking plug screw 13 in threaded connection with the connecting part 12 and capable of abutting against the bearing 14, and a nut 15 in threaded connection with the steering shaft 3 and capable of abutting against the bearing 14. Wherein the connecting portion 12 is disposed annularly and extends from the bottom surface of the inner cavity of the housing 1 toward the sensor shaft portion 4, and the bolt hole 5 is located outside the connecting portion 12. The locking screw 13 and the nut 15 are respectively arranged at two sides of the bearing 14, and the locking screw 13 is arranged at one side of the bearing 14 facing the sensor shaft part 4. The locking screw plug 13 and the nut 15 realize effective fixation of the position relation among the steering shaft part 3, the bearing 14 and the shell 1, and the steering shaft part 3 is prevented from moving relatively while the steering shaft part 3 is ensured to rotate relative to the shell 1.
In this embodiment, for the convenience to twist locking plug screw 13 and realize the dismouting that turns to axial region 3, locking plug screw 13 has been seted up and has been conveniently stirred locking plug screw 13 and make locking plug screw 13 threaded connection stir notch 16 in connecting portion 12, worm wheel 2 has been seted up and has been supplied the shaft-like thing to wear to establish and can insert the notch 17 of wearing to establish of stirring notch 16. The poking notch 16 is arranged on the inner wall of the locking plug screw 13, and the penetrating notch 17 is arranged on the inner wall of the worm wheel 2. Stir notch 16 and wear to establish notch 17 and all set up to two at least, stir notch 16 in this embodiment and wear to establish notch 17 and set up to two, just wear to establish notch 17 and be around turning to axial region 3 equipartition. Through the through notch 17 and the shifting notch 16, the rod-shaped structure can conveniently penetrate through the through notch 17 and be inserted into the shifting notch 16, meanwhile, the worm wheel 2 and the locking plug screw 13 can be shifted to rotate, and the locking plug screw 13 and the connecting part 12 can be dismounted after the locking plug screw 13 rotates; the through notch 17 and the poking notch 16 are respectively arranged on the inner walls of the worm wheel 2 and the locking screw plug 13, so that the effect of convenient processing is achieved; through the structure, the effect of integrally facilitating disassembly and assembly is realized, and later maintenance is facilitated.
In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the sake of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an electron power assisted steering system of segmentation axle design, includes shell (1), worm wheel (2), its characterized in that: the utility model discloses a sensor, including shell (1), sensor axial region (4), steering shaft portion (3) and sensor axial region (4), shell (1) rotates to be connected with and supplies the fixed segmentation axle subassembly of worm wheel (2), segmentation axle subassembly including steering shaft portion (3), sensor axial region (4), set up in steering shaft portion (3) and sensor axial region (4) between connection structure, steering shaft portion (3) and sensor axial region (4) end to end meet, worm wheel (2) can be emboliaed and are fixed in steering shaft portion (3) towards sensor axial region (4) one end by steering shaft portion (3), shell (1) is seted up bolt hole (5) that are worn to establish with the bolt and are used for fixed shell (1).
2. The segmented axle designed electric power steering system according to claim 1, wherein: connection structure is including seting up in spread groove (6) that sensor axial region (4) deviates from steering spindle one end, seting up in through-hole (7) of spread groove (6), seting up in steering spindle portion (3) and screw hole (8) that correspond with through-hole (7), wear to locate through-hole (7) and with screw hole (8) threaded connection's connecting bolt (9).
3. The segmented axle designed electric power steering system according to claim 2, wherein: the sensor axial region (4) has seted up constant head tank (10) towards turning to axial region (3) one end, it is provided with to turn to axial region (3) tip and insert location lug (11) of constant head tank (10).
4. The segmented axle designed electric power steering system according to claim 1, wherein: it turns to be provided with between axial region (3) and shell (1) and keeps turning to axial region (3) and shell (1) and rotate the rotation connection structure of being connected, rotate connection structure including set up in connecting portion (12) of shell (1), set up in bearing (14), threaded connection between connecting portion (12) and the axial region (3) that turns to in connecting portion (12) and locking plug screw (13), the threaded connection that can butt bearing (14) turn to axial region (3) and nut (15) that can butt bearing (14), bearing (14) both sides position is located to locking plug screw (13) and nut (15) branch.
5. The segmented axle designed electric power steering system according to claim 4, wherein: the locking screw plug (13) is positioned on one side of the bearing (14) facing the sensor shaft part (4).
6. The segmented axle designed electric power steering system of claim 5, wherein: locking plug screw (13) are seted up and are conveniently stirred locking plug screw (13) and make locking plug screw (13) threaded connection stir notch (16) in connecting portion (12), worm wheel (2) are seted up and are supplied the shaft-like thing to wear to establish and can insert the notch of wearing to establish (17) of stirring notch (16).
7. The segmented axle designed electric power steering system according to claim 6, wherein: the poking notch (16) is arranged on the inner wall of the locking plug screw (13), and the penetrating notch (17) is arranged on the inner wall of the worm wheel (2).
8. The segmented axle designed electric power steering system of claim 6, wherein: stir notch (16) and wear to establish notch (17) and all set up at least two, just wear to establish notch (17) and be around turning to axial region (3) equipartition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221816130.9U CN217649510U (en) | 2022-07-15 | 2022-07-15 | Electronic power-assisted steering system with sectional shaft design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221816130.9U CN217649510U (en) | 2022-07-15 | 2022-07-15 | Electronic power-assisted steering system with sectional shaft design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217649510U true CN217649510U (en) | 2022-10-25 |
Family
ID=83686912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221816130.9U Expired - Fee Related CN217649510U (en) | 2022-07-15 | 2022-07-15 | Electronic power-assisted steering system with sectional shaft design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217649510U (en) |
-
2022
- 2022-07-15 CN CN202221816130.9U patent/CN217649510U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |