CN204236551U - A kind of steering assembly and automobile - Google Patents
A kind of steering assembly and automobile Download PDFInfo
- Publication number
- CN204236551U CN204236551U CN201420752790.4U CN201420752790U CN204236551U CN 204236551 U CN204236551 U CN 204236551U CN 201420752790 U CN201420752790 U CN 201420752790U CN 204236551 U CN204236551 U CN 204236551U
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- CN
- China
- Prior art keywords
- gear wheel
- wheel shaft
- spline segment
- steering assembly
- male splines
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of steering assembly, comprise gear wheel shaft and universal-joint, the end of gear wheel shaft is provided with male splines, and described male splines comprises the first spline segment along the axial distribution of gear wheel shaft and the second spline segment; Universal-joint is provided with the internal splined hole be connected with male splines, the tapped bore fastening with gear wheel shaft, installation relief portion is provided with between first spline segment and the second spline segment, gear wheel shaft penetrates internal splined hole from one end of male splines, and the end face at the cut-off end face of male splines and internal splined hole place against, installation relief portion is positioned at threaded connector and penetrates outside the installation stroke of tapped bore, and threaded connector penetrates tapped bore and tightens up closed by the joint of universal-joint fork gap.Adopt this scheme, by the cut-off end face of male splines and the end face at internal splined hole place against, located the connection location of universal-joint and gear wheel shaft, and by arranging installation relief portion, improve installation effectiveness.The invention also discloses the automobile with above-mentioned steering assembly.
Description
Technical field
The utility model relates to steering swivel system technical field, is specifically related to a kind of steering assembly.
Background technology
In the steering swivel system of automobile, universal-joint below steering intermediate shaft is connected with steering gear shaft, both connection structures as Figure 1-4, steering gear shaft 1 ' is provided with male splines 11 ', universal-joint 2 ' is provided with internal splined hole, and, male splines 11 ' is set to segmentation structure, it comprises the first spline segment 111 ' and the second spline segment 112 ', offered semi-circular groove 12 ' between first spline segment 111 ' and the second spline segment 112 ', semi-circular groove 12 ' is communicated with along the circumference of steering gear shaft 1 '.During assembling, the male splines 11 ' of steering gear shaft 1 ' is connected with the internal splined hole of universal-joint 2 ', and when the tapped bore 22 ' of universal-joint 2 ' is coaxial with semi-circular groove 12 ', binding bolt penetrates tapped bore 22 ' and locks and tighten up closed by the joint fork gap 21 ' being located at universal-joint 2 ', and inside and outside spline is rigidly connected to together.
But, due between the two without installation and positioning structure, and the region coordinated and tolerance clearance relatively little, assembly crewman needs constantly to attempt, and causes efficiency of assembling lower.
Utility model content
The utility model provides a kind of steering assembly, can reduce installation difficulty, improves installation effectiveness.
To achieve these goals, the utility model takes following technical scheme:
A kind of steering assembly, comprise gear wheel shaft and universal-joint, the end of gear wheel shaft is provided with male splines, and described male splines comprises the first spline segment along the axial distribution of described gear wheel shaft and the second spline segment; Described universal-joint is provided with the internal splined hole be connected with described male splines, the tapped bore fastening with described gear wheel shaft, installation relief portion is provided with between described first spline segment and described second spline segment, described gear wheel shaft penetrates described internal splined hole from one end of described male splines, and the end face at the cut-off end face of described male splines and described internal splined hole place against, described installation relief portion is positioned at described threaded connector and penetrates outside the installation stroke of described tapped bore, and threaded connector penetrates described tapped bore and tightens up closed by the joint of described universal-joint fork gap.
Preferably, described installation relief portion comprises and is connected to the first cylinder between described first spline segment and described second spline segment and coaxial with described gear wheel shaft, and described first cylindrical radius is less than the shortest distance between the axle center of described gear wheel shaft and described tapped bore inwall.
Preferably, described installation relief portion comprises the first arc section, the second arc section and is connected to the middle linkage section of described first arc section, described second arc section, one end of described first arc section is connected to described first spline segment one end near described second spline segment, and along described gear wheel shaft axis near described second spline segment side extend and diameter reduce gradually; One end of described second arc section is connected to described second spline segment one end near described first spline segment, and along described gear wheel shaft axis near described first spline segment side extend and diameter reduce gradually, described middle linkage section is positioned at described threaded connector and penetrates outside the installation stroke of described tapped bore.
Preferably, described middle linkage section is the second cylinder, and described first arc section and described second arc section are respectively with the axisymmetrical of described gear wheel shaft, and described first arc section and described second arc section are symmetrically distributed in described second cylindrical two ends.
Preferably, the spline tooth of described male splines and the spline tooth of described internal splined hole are equipped with metal compaction layer.
Preferably, the spline tooth of described male splines and the spline tooth of described internal splined hole are equipped with the self-lubricating layer formed by solid lubricant.
Preferably, described solid lubricant is the compound comprising molybdenum disulphide, graphite and polytetrafluoroethylene.
A kind of automobile, comprise steering assembly, described steering assembly is the steering assembly described in above-mentioned any one.
The beneficial effect that the utility model obtains is:
The utility model provides a kind of steering assembly, comprises gear wheel shaft and universal-joint, and the end of described gear wheel shaft is provided with male splines, and described male splines comprises the first spline segment along the axial distribution of described gear wheel shaft and the second spline segment; Described universal-joint is provided with the internal splined hole be connected with described male splines, the tapped bore fastening with described gear wheel shaft, installation relief portion is provided with between described first spline segment and described second spline segment, described gear wheel shaft penetrates described internal splined hole from one end of described male splines, and the end face at the cut-off end face of described male splines and described internal splined hole place against, described installation relief portion is positioned at described threaded connector and penetrates outside the installation stroke of described tapped bore, and threaded connector penetrates described tapped bore and tightens up closed by the joint of described universal-joint fork gap.Adopt this technical scheme, by the cut-off end face of male splines and the end face at described internal splined hole place against, can the connection location of positioning universal coupling and gear wheel shaft easily, and by arranging installation relief portion, threaded connector is penetrated tapped bore smoothly, reduce installation difficulty, improve installation effectiveness.
The automobile that the utility model provides comprises steering assembly, and because this steering assembly has above-mentioned technique effect, the automobile comprising this steering assembly also should have identical technique effect.
Accompanying drawing explanation
Fig. 1 is the front view of the steering gear shaft of prior art;
Fig. 2 is the front view of the universal-joint of prior art;
Fig. 3 is the left view of the universal-joint of prior art;
Fig. 4 is the steering gear shaft of prior art and the connection diagram of universal-joint;
Fig. 5 is the front view of an embodiment of gear wheel shaft of the present utility model;
Fig. 6 is the enlarged view at A position in Fig. 5;
Fig. 7 is an embodiment of gear wheel shaft of the present utility model and the connection diagram of universal-joint.
Description of reference numerals:
1 '-steering gear shaft; 2 '-universal-joint; 11 '-male splines; 111 '-the first spline segment; 112 '-the second spline segment; 12 '-semi-circular groove; 21 '-Jie pitches gap; 22 '-tapped bore; 10-gear wheel shaft; 11-male splines; 111-first spline segment; 112-second spline segment; 113-ends end face; 115-first arc section; 116-second arc section; Linkage section in the middle of 117-; 20-universal-joint; 21-tapped bore; 22-end face.
Detailed description of the invention
In order to make those skilled in the art better understand the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is described in detail.
Shown in composition graphs 5-7, the utility model provides a kind of steering assembly, comprise gear wheel shaft 10 and universal-joint 20, the end of gear wheel shaft 10 is provided with male splines 11, and male splines 11 comprises the first spline segment 111 and the second spline segment 112 of the axial distribution along gear wheel shaft 10; Universal-joint 20 is provided with the internal splined hole be connected with male splines, the tapped bore 21 fastening with gear wheel shaft 10, installation relief portion is provided with between first spline segment 111 and the second spline segment 112, gear wheel shaft 10 penetrates internal splined hole from one end of male splines 11, and the end face 22 at the cut-off end face 113 of male splines 11 and internal splined hole place against, installation relief portion is positioned at threaded connector and penetrates outside the installation stroke of tapped bore 21, and threaded connector penetrates tapped bore 21 and tightens up closed by the joint of universal-joint fork gap.Adopt this technical scheme, by the cut-off end face of male splines 11 113 and end face 22 against, can the connection location of positioning universal coupling 20 and both gear wheel shafts 10 easily, and by arranging installation relief portion, avoid the installation stroke of threaded connector, threaded connector is penetrated tapped bore 21 smoothly, reduces installation difficulty, improve installation effectiveness.
The embodiment of installing relief portion has multiple, as embodiment one: install relief portion and comprise and be connected to the first cylinder between the first spline segment 111 and the second spline segment 112 and coaxial with gear wheel shaft 10, the first cylindrical radius is less than the shortest distance between the axle center of gear wheel shaft 10 and tapped bore 21 inwall.This scheme is by reducing the diameter between the first spline segment 111 of gear wheel shaft 10 and the second spline segment 112, increase the assemblage gap of thread connector, thus reduce installation difficulty, but, consider in this scheme, when gear wheel shaft 10 and universal-joint 20 transmitting torque, there is larger stress and concentrate in the junction of the first cylinder and the first spline segment 111, second spline segment 112, easily causes fractureing of gear wheel shaft 10.Therefore, in the present embodiment, in order to avoid above-mentioned defect, be preferably as follows embodiment two: relief portion is installed and comprises the first arc section 115, second arc section 116, with the middle linkage section 117 being connected to the first arc section 115, second arc section 116, one end of first arc section 115 is connected to the first spline segment 111 one end near the second spline segment 112, and along gear wheel shaft 10 axis near the second spline segment 112 side extend and diameter reduce gradually; One end of second arc section 116 is connected to the second spline segment 112 one end near the first spline segment 111, and along gear wheel shaft 10 axis near the first spline segment 111 side extend and diameter reduce gradually, middle linkage section 117 is positioned at threaded connector and penetrates outside the installation stroke of tapped bore 21.This scheme by arranging middle linkage section 117 between the first arc section 115 and the second arc section 116, add the distance between the first spline segment 111 and the second spline segment 112, thus increase in the length of fit of tapped bore 21 place gear wheel shaft 10 with universal-joint 20, thus installation difficulty is reduced, simultaneously, be connected by the transition of the first arc section 115 with the first spline segment 111, second arc section 116 and the second spline segment 112, reduce the stress concentration phenomenon of the junction of installing relief portion and gear wheel shaft 10, improve Joint strenght.
Further, middle linkage section 117 is preferably the second cylinder, and the first arc section 115 and the second arc section 116 are separately with the axisymmetrical of gear wheel shaft 10, and the first arc section 115 and the second arc section 116 are symmetrically distributed in the second cylindrical two ends.This scheme ensure that gear wheel shaft 10 and the centering of universal-joint 20 in moment of torsion transmittance process, occurs eccentric when avoiding motion.
In order to increase the hardness of the key tooth of inside and outside spline, the spline tooth of male splines 11 and the spline tooth of internal splined hole are equipped with metal compaction layer, the mode that the program adds quenching by carburizing obtains, and to ensure that its surface has enough hardness, and heart portion has enough toughness.
Further, the spline tooth of male splines 11 and the spline tooth of internal splined hole are equipped with the self-lubricating layer formed by solid lubricant, and this scheme can facilitate both assemblings, and wearing and tearing when reducing contact.And preferably, solid lubricant is the compound comprising molybdenum disulphide, graphite and polytetrafluoroethylene, and this technique obtains by modes such as shot-peenings, technique is simple, and it is convenient to realize.
The automobile that the utility model provides comprises steering assembly, and this steering assembly is the steering assembly described in above-mentioned either a program, and because this steering assembly has above-mentioned technique effect, the automobile comprising this steering assembly also should have identical technique effect.
Although the utility model is described in conjunction with above embodiment, but the utility model is not limited to above embodiment, and just by the restriction of claim, this area common technique personnel can easily modify to it and change, but do not leave essential idea of the present utility model and scope.
Claims (8)
1. a steering assembly, comprises gear wheel shaft and universal-joint, and the end of gear wheel shaft is provided with male splines, and described male splines comprises the first spline segment along the axial distribution of described gear wheel shaft and the second spline segment, described universal-joint is provided with the internal splined hole be connected with described male splines, the tapped bore fastening with described gear wheel shaft, it is characterized in that, installation relief portion is provided with between described first spline segment and described second spline segment, described gear wheel shaft penetrates described internal splined hole from one end of described male splines, and the end face at the cut-off end face of described male splines and described internal splined hole place against, described installation relief portion is positioned at described threaded connector and penetrates outside the installation stroke of described tapped bore, threaded connector penetrates described tapped bore and tightens up closed by the joint of described universal-joint fork gap.
2. steering assembly according to claim 1, it is characterized in that, described installation relief portion comprises and is connected to the first cylinder between described first spline segment and described second spline segment and coaxial with described gear wheel shaft, and described first cylindrical radius is less than the shortest distance between the axle center of described gear wheel shaft and described tapped bore inwall.
3. steering assembly according to claim 1, it is characterized in that, described installation relief portion comprises the first arc section, the second arc section and is connected to the middle linkage section of described first arc section, described second arc section, one end of described first arc section is connected to described first spline segment one end near described second spline segment, and along described gear wheel shaft axis near described second spline segment side extend and diameter reduce gradually; One end of described second arc section is connected to described second spline segment one end near described first spline segment, and along described gear wheel shaft axis near described first spline segment side extend and diameter reduce gradually, described middle linkage section is positioned at described threaded connector and penetrates outside the installation stroke of described tapped bore.
4. steering assembly according to claim 3, it is characterized in that, described middle linkage section is the second cylinder, described first arc section and described second arc section are respectively with the axisymmetrical of described gear wheel shaft, and described first arc section and described second arc section are symmetrically distributed in described second cylindrical two ends.
5. the steering assembly according to any one of claim 1-4, is characterized in that, the spline tooth of described male splines and the spline tooth of described internal splined hole are equipped with metal compaction layer.
6. the steering assembly according to any one of claim 1-4, is characterized in that, the spline tooth of described male splines and the spline tooth of described internal splined hole are equipped with the self-lubricating layer formed by solid lubricant.
7. steering assembly according to claim 6, is characterized in that, described solid lubricant is the compound comprising molybdenum disulphide, graphite and polytetrafluoroethylene.
8. an automobile, comprises steering assembly, it is characterized in that, described steering assembly is the steering assembly described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752790.4U CN204236551U (en) | 2014-12-03 | 2014-12-03 | A kind of steering assembly and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752790.4U CN204236551U (en) | 2014-12-03 | 2014-12-03 | A kind of steering assembly and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204236551U true CN204236551U (en) | 2015-04-01 |
Family
ID=52766080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420752790.4U Withdrawn - After Issue CN204236551U (en) | 2014-12-03 | 2014-12-03 | A kind of steering assembly and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204236551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494686A (en) * | 2014-12-03 | 2015-04-08 | 安徽江淮汽车股份有限公司 | Steering gear assembly and vehicle |
| CN109185327A (en) * | 2018-09-14 | 2019-01-11 | 汉中天行智能飞行器有限责任公司 | A kind of hyperbola multidiameter shaft |
-
2014
- 2014-12-03 CN CN201420752790.4U patent/CN204236551U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494686A (en) * | 2014-12-03 | 2015-04-08 | 安徽江淮汽车股份有限公司 | Steering gear assembly and vehicle |
| CN104494686B (en) * | 2014-12-03 | 2016-08-03 | 安徽江淮汽车股份有限公司 | A kind of steering assembly and automobile |
| CN109185327A (en) * | 2018-09-14 | 2019-01-11 | 汉中天行智能飞行器有限责任公司 | A kind of hyperbola multidiameter shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |