CN212473636U - Automobile steering control mechanism - Google Patents
Automobile steering control mechanism Download PDFInfo
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- CN212473636U CN212473636U CN202021201114.XU CN202021201114U CN212473636U CN 212473636 U CN212473636 U CN 212473636U CN 202021201114 U CN202021201114 U CN 202021201114U CN 212473636 U CN212473636 U CN 212473636U
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- steering
- shaft
- transmission shaft
- spiral spring
- coil spring
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Abstract
An automobile steering control mechanism is characterized in that the automobile steering control mechanism is formed by mechanically connecting a steering wheel, a steering shaft and an upper end and a lower end of a helical spring type steering transmission shaft assembly with cylindrical spline sleeves at two ends with the steering wheel steering shaft and an input shaft of a steering gear respectively; the section of the spiral spring is a circular section, a square section or/and a rectangular section; the spiral spring has the axial bending deformation and telescopic functions; the outer circle circumference of the spiral spring is sleeved with a rubber sleeve; the rubber sleeve and the spiral spring transmission shaft are integrated, and the rubber sleeve and the spiral spring have axial bending deformation and telescopic functions; the rubber sleeve has the function of protecting the spiral spring; the mechanical connection is welding and bolt connection; the steering transmission shaft can also be an integral type steering transmission shaft or a double-layer type steering transmission shaft.
Description
Technical Field
The invention relates to the field of design of commercial automobiles, in particular to a steering control mechanism and an automobile steering transmission shaft thereof.
Background
The automobile is used in urban and rural traffic, and the structure and the performance of an automobile steering control mechanism and a steering transmission shaft thereof are closely related to the performance of the automobile.
At present, an automobile steering control mechanism is formed by mechanically connecting a steering wheel, a steering shaft, a steering universal joint, a steering transmission shaft, the steering universal joint, an input shaft of a steering gear and the like, wherein the steering transmission shaft is a main component of the steering control mechanism, the steering transmission shaft and the steering wheel are connected above the steering transmission shaft, and the input shaft of the steering gear is connected below the steering transmission shaft; the steering device is connected with the frame through the bolts, the steering shaft tube and the bracket are connected with the vehicle body and the vehicle body is connected with the frame, so that the automobile steering control machine becomes an independent structure; the universal transmission structure realizes the transmission of the steering shaft and the steering gear input shaft which are not in the same straight line. The steering universal joint is easy to wear after long-term use, so that the rotating clearance of a steering wheel is enlarged and even damaged, and the steering wheel is easy to break down or lose the original performance, thereby causing traffic accidents; the universal joint is expensive to manufacture. At present, no automobile steering control mechanism and no steering transmission shaft design thereof which have simple structure, can obviously improve the performance and have low cost exist.
Disclosure of Invention
In order to solve the problems existing in the prior art, the utility model provides an automobile steering control mechanism with simple structure, which omits a universal joint.
The technical proposal of the utility model is that
The utility model provides an automobile steering control mechanism, includes steering wheel and steering spindle, steering drive shaft and steering gear, and the frame is connected through the bolt to the steering gear, steering spindle central siphon and leg joint automobile body, steering drive shaft is the coil spring that both ends have the cylinder spline housing, steering drive shaft's one end is connected steering spindle and steering wheel, and the input shaft of steering gear is connected to the other end, coil spring can axial bending deformation and flexible.
Further, the section of the spiral spring is a circular section, a square section or/and a rectangular section.
Further, the outer surface of the spiral spring is sleeved with a rubber sleeve; the rubber sleeve and the steering transmission shaft are integrated, and the rubber sleeve and the steering transmission shaft can be axially bent, deformed and stretched.
Further, the spiral spring is connected with the cylindrical spline housing in a welding mode, and welding seams of the welding connection are a brazing welding seam and a V-shaped welding seam.
Furthermore, a first flange plate is arranged at the shaft end of the steering transmission shaft, a second flange plate is arranged at the shaft end of the steering shaft, a third flange plate is arranged at the shaft end of the input shaft of the steering gear, and the steering transmission shaft, the steering shaft and the input shaft of the steering gear are connected through flange plates or splines.
Furthermore, the spline sleeve and the spiral spring of the steering transmission shaft are integrally formed.
Furthermore, the inner ends of the spline sleeves at the two ends of the steering transmission shaft are in the shape of a circular boss.
Furthermore, the spring wire of the spiral spring is of a variable-diameter structure and is rolled into the spiral spring, the two ends of the spiral spring are of a thickened diameter, the middle part of the spiral spring is of a reduced diameter, and the spiral spring is welded by a brazing welding seam and a V-shaped welding seam.
Furthermore, the spiral spring is a bidirectional double-layer spiral spring, the two sides of the steering transmission shaft are provided with an inner ring and an outer ring, and the inner ring and the outer ring are connected through bolts.
The utility model (invention) provides a steering control mechanism has the advantages that: the parts are few, a steering universal joint is omitted, and the structure is simple; the cost is reduced; meanwhile, the steering wheel rotates without a gap, and the operation is convenient; can be used for commercial vehicles, bus chassis and minicars.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a steering mechanism of a vehicle according to an embodiment of the present invention;
fig. 2 is a schematic view of a steering transmission shaft according to an embodiment of the present invention;
FIG. 3 is a schematic view of a steering gear shaft connection according to an embodiment of the present invention;
fig. 4 is a schematic view of a splined shaft end of a steering transmission shaft according to an embodiment of the present invention;
fig. 5 is a schematic view of an input shaft splined end of a steering transmission shaft according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a splined connection of a steering transmission shaft according to an embodiment of the present invention;
fig. 7 is a schematic view of an integrated steering transmission shaft according to an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at A;
FIG. 9 is a schematic view of a welded joint steering transmission shaft according to an embodiment of the present invention;
FIG. 10 is a schematic view of a welded joint steering shaft with a boss at the inner end of the shaft according to an embodiment of the present invention;
FIG. 11 is a schematic view of a circular coil spring steering drive shaft according to an embodiment of the present invention;
fig. 12 is a schematic view of the construction of a coil spring with a variable diameter wire according to an embodiment of the present invention;
fig. 13 is a schematic view of a bidirectional helical spring steering transmission shaft according to an embodiment of the present invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
In fig. 1, a steering wheel 1, a steering shaft 2, a helical spring type steering transmission shaft 4 with cylindrical spline sleeves at two ends and an input shaft 5 of a steering gear of an automobile steering control mechanism are mechanically connected; the steering gear connecting bolt 7 is connected with the frame, the steering shaft tube and the bracket 8 are connected with the vehicle body, and the vehicle body is connected with the frame. The mechanical connection is welding.
The section of the helical spring type steering transmission shaft 4 can be a circular section, a square section or/and a rectangular section; the helical spring type steering transmission shaft 4 has axial bending deformation and telescopic functions; the rubber sleeve is sleeved on the excircle circumference of the helical spring type steering transmission shaft 4; the rubber sleeve and the spiral spring transmission shaft are integrated, and the rubber sleeve has the axial bending deformation and stretching functions; the rubber sleeve has the function of protecting a spiral spring; the mechanical connection is a welded connection.
The helical spring can be bent and deformed due to the large longitudinal length, and the bending deformation can reach 10 degrees and 20 degrees and can reach 50 degrees; the general automobile steering device is arranged at the outer side of an automobile frame, and the input shaft of the steering machine and the axis of the steering wheel are not in the same straight line and generally do not exceed 10 degrees, so that the (universal) transmission which is not in the same straight line is realized, namely the transmission which is not in the same straight line between the steering shaft and the input shaft of the steering device is realized; the helical spring has more bending deformation and can realize the turnover of the automobile cab.
The helical spring type steering transmission shaft replaces two universal joints to become a main component part in the automobile steering control mechanism, and the helical spring type steering transmission shaft can independently exist to become a renewable accessory on an automobile.
The helical spring type steering transmission shaft is formed by welding and connecting a helical spring and cylindrical spline sleeves at two ends to form an integral helical spring type steering transmission shaft, and the welding seams of the welding connection are V-shaped welding seams, V-shaped welding seams and seam welding seams, and brazing welding seams and V-shaped welding seams.
The inner ends of the spline sleeves at the two ends of the steering transmission shaft are in the shape of a circular boss, a spiral spring is sleeved on the spline sleeves, and the spiral spring of the steering transmission shaft and the spline sleeves at the two ends are connected into a whole by V welding seam and seam welding to form the steering transmission shaft.
The spiral spring is a spiral spring with a circular section, the spiral spring of the steering transmission shaft is connected with the spline sleeves at the two ends, the spline sleeves of the steering transmission shaft and the spiral spring are connected into a whole by using a brazing welding seam and a V welding seam to form the steering transmission shaft.
The spring wire of the spiral spring is of a variable diameter structure: the two ends are provided with a thickened diameter and a tight screw pitch; the middle part is reduced in diameter, so that the connection of the two ends is facilitated.
The spiral spring is of a double-layer spiral spring structure, the outer layer is a right-handed spring, and the inner layer is a left-handed spring; or the outer layer is a left-handed spring and the inner layer is a right-handed spring. When the steering wheel rotates, the double-layer spiral spring reduces the whole torsional deformation of the spiral spring, namely reduces the rotating clearance of the steering wheel. The inner ring and the outer ring at two sides of the steering transmission shaft are additionally connected by bolts.
In fig. 2, the shaft-end spline housing 41, the square coil spring 42 and the shaft-end spline housing 43 are welded and connected integrally; the spline sleeve of the steering transmission shaft and the spiral spring are connected into a whole by using a brazing welding seam and a V welding seam to form the steering transmission shaft. The length of the spiral spring 42 can be 380-800 mm, the whole of the spiral spring can be 50-80 mm, the diameter of the spring wire can be 3.8-8.0 mm, and the pitch of the spring can be 3.8-8.0 mm, which depends on the types of the long-head automobiles and the mini-automobiles of the flat-head automobiles.
In fig. 3-6, a flange plate is arranged at the shaft end of the steering transmission shaft 4, bolt holes are formed in the flange plate, and the arrow C indicates the bolt holes; a flange plate is arranged at the shaft end of the steering shaft 2, and bolt holes are formed in the flange plate; a flange plate is arranged at the shaft end of an input shaft 5 of the steering gear, and a bolt hole is formed in the flange plate; the three parts are connected by splines and bolts to form a steering control mechanism of the helical spring type steering transmission shaft.
In fig. 7 and 8, the steering transmission shaft is an integrated steering transmission shaft, and a circular cylindrical steel pipe can be selected during manufacturing, both ends of the circular cylindrical steel pipe are processed into spline sleeves 41 and 43, a hole is drilled at an arrow a by using a drill, and then the hole is milled along the thread direction by using a milling cutter to form a spiral spring 42 at the middle part, so that the integrated steering transmission shaft can be formed.
In fig. 9 and 10, the inner ends of the shaft end spline housings 41 and 43 are made into the shape of circular bosses, are sleeved with the helical springs 42, and can be connected into a whole by applying a V-weld seam and a seam weld seam to form a steering transmission shaft; the length of the spiral spring 42 can be 380-800 mm, the whole of the spiral spring can be 50-80 mm, the diameter of the spring wire can be 3.8-8.0 mm, and the pitch of the spring can be 3.8-8.0 mm, which depends on the types of the long-head automobiles and the mini-automobiles of the flat-head automobiles.
In fig. 11, as in fig. 2 and 3, the shaft-end spline housing 41, the circular coil spring 42, and the shaft-end spline housing 43 are welded integrally; the spline sleeve of the steering transmission shaft and the spiral spring are connected into a whole by using a brazing welding seam and a V welding seam to form the steering transmission shaft. The length of the spiral spring 42 can be 380-800 mm, the whole of the spiral spring can be 50-80 mm, the diameter of the spring wire can be 3.8-8.0 mm, and the pitch of the spring can be 3.8-8.0 mm, which depends on the types of the long-head automobiles and the mini-automobiles of the flat-head automobiles.
In fig. 12, the coil spring wire is of a variable diameter construction: the two ends are thickened diameter and tight pitch, the middle part is reduced diameter, the two ends are thickened diameter and tight pitch, and the spring is curled into the spiral spring shown in figure 11; the connection is facilitated by the thickened diameter and the tight pitch at the two ends.
In fig. 13, on the basis of the integrated steering transmission shaft of fig. 7 or the steering transmission shaft of fig. 2, a steering transmission shaft of a reverse direction coil spring is added to form a bidirectional coil spring steering transmission shaft; 91-92-93 is of the same construction as 41-42-43, with clearance for the middle spring portion, keeping the two independent of each other; the matching of the inner shaft tube and the outer shaft tube at the two sides can be applied to be tightly matched, and the tight matching is to tightly connect the inner shaft tube and the outer shaft tube together to form a whole; the inner and outer rings of the steering transmission shaft can be connected by additional bolts 10. (41-shaft end is provided with a spline sleeve, 42-spiral spring, 43-shaft end is provided with a spline sleeve, 41-42-43 are connected into a whole) and an outer ring steering transmission shaft (91-shaft end is provided with a sleeve, 92-spiral spring, 93-shaft end is provided with a sleeve, 91-92-93 are connected into a whole); the steering transmission shaft with the spline at the shaft end is formed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (9)
1. The automobile steering control mechanism comprises a steering wheel, a steering shaft, a steering transmission shaft and a steering gear, wherein the steering gear is connected with a frame through a bolt, the steering shaft pipe is connected with an automobile body through a support, the steering transmission shaft is a spiral spring, cylindrical spline sleeves are arranged at two ends of the spiral spring, one end of the steering transmission shaft is connected with the steering wheel and the steering shaft, the other end of the spiral spring is connected with an input shaft of the steering gear, and the spiral spring can be bent, deformed and stretched axially.
2. The steering mechanism according to claim 1, wherein the cross section of the coil spring is a circular cross section, a square cross section, or/and a rectangular cross section.
3. The steering mechanism according to claim 1, wherein a rubber sleeve is fitted over an outer surface of the coil spring; the rubber sleeve and the steering transmission shaft are integrated, and the rubber sleeve and the steering transmission shaft can be axially bent, deformed and stretched.
4. The steering mechanism of claim 1, wherein the coil spring is welded to the cylindrical spline housing, and the weld of the welded connection is a braze weld + a V-shaped weld.
5. The steering mechanism of claim 1, wherein the steering shaft has a first flange at an end thereof, the steering shaft has a second flange at an end thereof, the steering shaft has a third flange at an end thereof, and the steering shaft, the steering shaft and the input shaft of the steering gear are connected by the flanges or splines.
6. The steering mechanism according to claim 1, wherein the spline housing of the steering transmission shaft and the coil spring are integrally formed.
7. The steering mechanism of claim 1, wherein the inner end of the spline housing at both ends of the steering shaft is in the shape of a circular boss.
8. The steering mechanism according to claim 1, wherein the coil spring wire is of a variable diameter construction, is coiled into a coil spring having a widened diameter at each end and a reduced diameter at the center, and is welded with a braze weld plus a V-weld.
9. The steering mechanism according to claim 1, wherein the coil spring is a double-layer coil spring, and the steering shaft has inner and outer rings on both sides thereof, and the inner and outer rings are connected by a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021201114.XU CN212473636U (en) | 2020-06-26 | 2020-06-26 | Automobile steering control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021201114.XU CN212473636U (en) | 2020-06-26 | 2020-06-26 | Automobile steering control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212473636U true CN212473636U (en) | 2021-02-05 |
Family
ID=74412801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021201114.XU Active CN212473636U (en) | 2020-06-26 | 2020-06-26 | Automobile steering control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212473636U (en) |
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2020
- 2020-06-26 CN CN202021201114.XU patent/CN212473636U/en active Active
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