CN204587002U - A kind of Vehicular electric steering column mechanism - Google Patents
A kind of Vehicular electric steering column mechanism Download PDFInfo
- Publication number
- CN204587002U CN204587002U CN201520292445.1U CN201520292445U CN204587002U CN 204587002 U CN204587002 U CN 204587002U CN 201520292445 U CN201520292445 U CN 201520292445U CN 204587002 U CN204587002 U CN 204587002U
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- CN
- China
- Prior art keywords
- hollow cylinder
- spline housing
- splines
- steering column
- electric steering
- 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.)
- Expired - Fee Related
Links
- 239000004677 Nylon Substances 0.000 claims description 16
- 229920001778 nylon Polymers 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000004519 grease Substances 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 8
- 239000000243 solution Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Power Steering Mechanism (AREA)
Abstract
The utility model discloses a kind of Vehicular electric steering column mechanism, comprise the female splines being located at input shaft bottom interior wall, be located at the male splines of output shaft tip exterior, for connecting the spline housing of described female splines and described male splines, multiple hollow cylinders that described spline housing is arranged by circumference surround, and between hollow cylinder, there is predetermined interval described in adjacent two, the part in described hollow cylinder is the hollow cylinder another part having a C type groove is the hollow cylinder being provided with needle roller; The profile of tooth of described female splines and male splines is semicircle, and the semicircle profile of tooth of described hollow cylinder and female splines and male splines matches.The utility model utilizes flexibility to combine with rigid design, and actv. solves the problem of the poor rigidity that abnormal sound problem is brought.
Description
Technical field
The utility model belongs to Vehicular electric steering shaft field, is specifically related to a kind of Vehicular electric steering column mechanism.
Background technology
The input and output shaft connection of current electric automotive steering column generally adopts spline joint, spline material is nylon, concrete processing mode is: input shaft lower end is hollow structure, inwall processing spline, spline is stepped tooth structure, output shaft upper end assembling spline housing, spline housing material is nylon, nylon injection-molding is shaping, interior male splines composition, male splines and input shaft female splines are connected, Inner spline and output shaft interference fit, usually is also stepped tooth structure, prevents spline housing to skid on output shaft rotation.In the connection that pto input shaft junction increase nylon spline housing is in order to avoid pure rigidity, because it is a difficult point that the spline size of clean steel coordinates processing technology, the dimension limit of processing is difficult to control, and can bring the problem of assembling difficulty, yield rate is very low.Though nylon spline housing structure generally adopts, the material of nylon itself can avoid the problem of assembling difficulty by plastic deformation, but easy permanent plastic deformation and produce gap after the long-time transmitting torque of spline stepped tooth structure of nylon material processing, cause looseness abnormal sound noise, manufacturing more quietly car steering tube column is the problem that the utility model patent will solve.
The spline fitted of the nylon that current electric steering column input and output shaft adopts is comparatively general, wherein nylon spline housing has two kinds of assembly technologies, a kind of is be coated on the spline stepped tooth of output shaft, another kind is that die casting is on the spline stepped tooth of output shaft, no matter which kind of technique, be inherently the material having wrapped one deck flexibility in the outer ring of output shaft spline stepped tooth, avoid the pure rigid contact with input shaft, technique realizes being easier to.
As Figure 1-3, prior art adopts nylon spline at input and output shaft, spline is interference fit, ensure the skid force keeping 100N after input shaft 1a and output shaft 2a assembles, although the radial moment transmitted is less between input shaft 1a and output shaft 2a, but after a long time use, input shaft female splines 11a and output shaft male splines extruding spline housing 3, nylon material processing the easy permanent plastic deformation of spline housing spline stepped tooth structure and produce gap, cause looseness abnormal sound noise, long-time wearing and tearing, the stepped tooth of spline housing can be out of shape more serious, input and output shaft rigidity is caused also correspondingly to reduce.The utility model is the problem of abnormal sound and raising rigidity by solution distortion.
In prior art figure: 1a-axle sleeve 2a-sleeve pipe 3a-spline housing 11a-input shaft female splines;
In the present embodiment figure: 1-input shaft 2-output shaft 3-spline housing 11-female splines 21-male splines 31-C type groove 32-steel needle-roller.
Utility model content
The purpose of this utility model is to provide a kind of Vehicular electric steering column mechanism, is out of shape and the problem of abnormal sound and raising rigidity to solving.
To achieve these goals, the utility model provides a kind of Vehicular electric steering column mechanism, comprise the female splines being located at input shaft bottom interior wall, the male splines being located at output shaft tip exterior, with the spline housing for being connected described female splines and described male splines, multiple hollow cylinders that described spline housing is arranged by circumference surround, and have predetermined interval between hollow cylinder described in adjacent two; A part in described hollow cylinder is the hollow cylinder another part having a C type groove is the hollow cylinder being provided with needle roller; The profile of tooth of described female splines and male splines is semicircle, and the semicircle profile of tooth of described hollow cylinder and female splines and male splines matches.
Preferably, described in have a C type groove hollow cylinder be three, described in be provided with needle roller hollow cylinder be three, described in have the hollow cylinder of C type groove and the described hollow cylinder alternate layout in the circumference of described spline housing being provided with needle roller.
Preferably, described needle roller to be located in described hollow cylinder and suitable with the inwall of described hollow cylinder.
Preferably, described needle roller two ends are the conical structure of outwardly convex.
Preferably, described needle roller is steel needle-roller.
Preferably, described spline housing is nylon spline housing, and the length of described spline housing is less than the length of described output shaft male splines.
Preferably, the opening of described C type groove is located at the described hollow cylinder cylindrical end matched with input shaft.
Preferably, grease is provided with in described C type groove.
Effect of the present utility model is: Advantageous Effects of the present utility model embodies in the following areas: by the shedding deformation of " C " shape, spline housing is made to have automatic elastic compensating gap function, the steel needle-roller that described spline housing is arranged, is spaced, improves the torsional stiffness of spline housing.The spline tooth that pto input shaft spline housing is arranged simultaneously is semi-circular shape, avoids the gap that the distortion of common nylon stepped tooth produces, and the utility model utilization is flexible to combine with rigid design, and actv. solves the problem of abnormal sound problem and poor rigidity.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is prior art cutaway view
Fig. 2 is prior art part sectional view enlarged drawing
Fig. 3 is prior art sleeve pipe and output shaft stepped tooth spline housing fit structure cutaway view
Fig. 4 is technical solutions of the utility model cutaway view
Fig. 5 is technical solutions of the utility model semi-sictional view enlarged drawing
Fig. 6 is technical solutions of the utility model input shaft and spline housing general assembly figure
Fig. 7 is the front elevation of technical solutions of the utility model sleeve pipe
Fig. 8 is the front elevation of technical solutions of the utility model output shaft
Fig. 9 is the front elevation of technical solutions of the utility model spline housing
Figure 10 is the lateral plan of technical solutions of the utility model spline housing
Detailed description of the invention
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the utility model is further detailed.
As a kind of Vehicular electric steering column mechanism that Fig. 4 to 10 provides for the utility model, comprise the female splines 11 being located at input shaft 1 bottom interior wall, be located at the male splines 21 of output shaft tip exterior, for connecting the spline housing 3 of described female splines 11 and described male splines 21, wherein, described spline housing is kept at a certain distance away by multiple hollow cylinder and surrounds, and described hollow cylinder comprises the hollow cylinder having C type groove 31, the hollow cylinder being provided with needle roller; Described female splines 11 is semicircle with the profile of tooth of male splines 21, and the semicircle profile of tooth of described hollow cylinder and female splines 11 and male splines 21 matches.In the present embodiment, the spline of output shaft 2 and input shaft is the semi-circular spline concaved, complete the fixing of input shaft and output shaft by the form adopting semicircle spline to coordinate with hollow cylinder, avoid the gap that the distortion of common stepped tooth produces, reduce the bad student of abnormal sound; By adopting the hollow cylinder of C type groove structure, when C type groove receives extruding when making input shaft coordinate with output shaft, certain deformation can occur, and spline housing has automatic elastic compensating gap function, improve the torsional stiffness of spline housing, namely improve the torsional stiffness of steering column; Meanwhile, the needle roller structure installed additional can further improve the intensity of spline housing.
In the present embodiment, input shaft 1 and output shaft 2 material are steel, and the female splines 11 of input shaft 1 is roll forming, and the number of teeth is 12 teeth, and profile of tooth is semicircle, and described needle roller is steel needle-roller; The male splines 21 of output shaft 2 is normally cast and is formed, and the number of teeth is 6 teeth, and profile of tooth is semicircle; Described spline housing 3 material is that nylon is made, output shaft spline length is shorter in length than for the ease of matching spline cover, uniform 6 hollow cylinders in spline housing outer ring, wherein 3 hollow cylinders are provided with open slot, wherein, described open slot is C type groove, and the opening of C type groove is located at the described hollow cylinder cylindrical end matched with input shaft, open slot end face likeness in form " C " shape; All the other 3 hollow cylinders are axially provided with steel needle-roller 32, steel needle-roller 32 is shaping together when spline housing injection moulding, needle roller to be located in described hollow cylinder and to match with inwall, and for the ease of the installation of steel needle-roller, the two ends of steel needle-roller 32 are the cone-shaped structure of outwardly convex.
Further, 3 hollow cylinders with C type groove and 3 are with the hollow cylinder cross arrangement of needle roller, and this has the hollow cylinder of C type groove and is provided with the hollow cylinder of steel needle-roller, alternate layout in the circumference of described spline housing.Spline housing hollow cylinder external body coordinates with input shaft semicircle profile of tooth, coordinates in hollow cylinder with output shaft semicircle profile of tooth; Such arrangement can circumferencial direction eliminate uniformly clearence degree and improve torsional strength, wherein, spline housing 3 be fitted on output shaft 2 with output shaft interference fit; Lubricate spline housing adding grease in " C " shape hollow cylinder fluting, then input shaft 1 assembly press-fits interference fit with output shaft 2 again, completes the assembling of electric steering column pto input shaft matching mechanism.
In sum: the spline housing of what the present embodiment provided be provided with C groove, by the shedding deformation of " C " shape, makes spline housing have automatic elastic compensating gap function, the steel needle-roller that described spline housing is arranged, be spaced, improve the torsional stiffness of spline housing.The spline tooth that pto input shaft spline housing is arranged simultaneously is semi-circular shape, avoids the gap that the distortion of common nylon stepped tooth produces, and the utility model utilization is flexible to combine with rigid design, and actv. solves the problem of the poor rigidity that abnormal sound problem is brought.
Mode above only by illustrating describes some one exemplary embodiment of the present utility model, undoubtedly, for those of ordinary skill in the art, when not departing from spirit and scope of the present utility model, can revise described embodiment by various different mode.Therefore, above-mentioned accompanying drawing is illustrative with being described in essence, should not be construed as the restriction to the utility model claims.
Claims (8)
1. a Vehicular electric steering column mechanism, comprise the female splines being located at input shaft bottom interior wall, the male splines being located at output shaft tip exterior, with the spline housing for being connected described female splines and described male splines, it is characterized in that: multiple hollow cylinders that described spline housing is arranged by circumference surround, and have predetermined interval between hollow cylinder described in adjacent two; A part in described hollow cylinder is the hollow cylinder another part having a C type groove is the hollow cylinder being provided with needle roller; The profile of tooth of described female splines and male splines is semicircle, and the semicircle profile of tooth of described hollow cylinder and female splines and male splines matches.
2. Vehicular electric steering column mechanism as claimed in claim 1, it is characterized in that: described in have a C type groove hollow cylinder be three, the described hollow cylinder being provided with needle roller is three, described in have the hollow cylinder of C type groove and the described hollow cylinder alternate layout in the circumference of described spline housing being provided with needle roller.
3. Vehicular electric steering column mechanism as claimed in claim 1 or 2, is characterized in that: described needle roller is located in described hollow cylinder, and suitable with the inwall of described hollow cylinder.
4. Vehicular electric steering column mechanism as claimed in claim 3, is characterized in that: described needle roller two ends are the conical structure of outwardly convex.
5. Vehicular electric steering column mechanism as claimed in claim 4, is characterized in that: described needle roller is steel needle-roller.
6. Vehicular electric steering column mechanism as claimed in claim 1 or 2, it is characterized in that: described spline housing is nylon spline housing, the length of described spline housing is less than the length of described output shaft male splines.
7. Vehicular electric steering column mechanism as claimed in claim 1, is characterized in that: the opening of C type groove is located at the cylindrical end of the described hollow cylinder matched with input shaft.
8. Vehicular electric steering column mechanism as claimed in claim 7, is characterized in that: be provided with grease in described C type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292445.1U CN204587002U (en) | 2015-05-07 | 2015-05-07 | A kind of Vehicular electric steering column mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292445.1U CN204587002U (en) | 2015-05-07 | 2015-05-07 | A kind of Vehicular electric steering column mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204587002U true CN204587002U (en) | 2015-08-26 |
Family
ID=53923184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520292445.1U Expired - Fee Related CN204587002U (en) | 2015-05-07 | 2015-05-07 | A kind of Vehicular electric steering column mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204587002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065872A (en) * | 2020-09-07 | 2020-12-11 | 北方重工集团有限公司 | Anti-backlash type steering transmission shaft steel ball retainer |
-
2015
- 2015-05-07 CN CN201520292445.1U patent/CN204587002U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065872A (en) * | 2020-09-07 | 2020-12-11 | 北方重工集团有限公司 | Anti-backlash type steering transmission shaft steel ball retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |