CN217396617U - Steering mechanism of steering drive axle - Google Patents
Steering mechanism of steering drive axle Download PDFInfo
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- CN217396617U CN217396617U CN202221037454.2U CN202221037454U CN217396617U CN 217396617 U CN217396617 U CN 217396617U CN 202221037454 U CN202221037454 U CN 202221037454U CN 217396617 U CN217396617 U CN 217396617U
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- pin hole
- hole
- connecting hole
- drive axle
- steering mechanism
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Abstract
The utility model discloses a steering drive axle steering mechanism, which relates to the field of steering drive axles of automobile chassis, and comprises a steering knuckle, a supporting seat and a knuckle arm assembly; the knuckle includes a body portion and a straight arm portion; the upper part of the body part is provided with a first half pin hole; the lower part of the body part is provided with a lower main pin hole; the straight arm part is provided with a second half pin hole at the part opposite to the main body part; and the second half pin hole and the first half pin hole are matched and fixedly formed with an upper main pin hole. According to the scheme, the steering knuckle is designed into a split structure, and particularly is split at the position of the upper main pin hole, so that the upper main pin hole is formed by assembling and matching the first half pin hole and the second half pin hole. By adopting the mode, the mode of press fitting is not adopted when the bushing is installed. Through this scheme of adoption not only can be easy to assemble, all have very big promotion effect to solving later maintenance, reduction in production cost simultaneously.
Description
Technical Field
The utility model relates to a vehicle chassis's steering drive axle field specifically is a steering drive axle steering mechanism.
Background
In the prior art, an upper main pin hole and a lower main pin hole in a steering knuckle adopted by a steering drive axle steering mechanism are complete holes, and an upper bushing and a lower bushing are pressed into a steering knuckle shell by a press-fitting process, such as the scheme disclosed in the published patent document (patent number: 201410432027.8; patent name: steering drive axle steering mechanism, mounting method and steering drive axle). However, such a solution easily causes poor assembly manufacturability of the upper and lower main pins, the thrust bearing and the support seat, and causes difficulty in post-maintenance and high production cost because the bush adopts a press-in solution.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a new technical scheme provides a good, the reduction in production cost of assembly manufacturability promptly, solves the steering drive axle steering mechanism of later maintenance difficulty problem simultaneously.
The utility model provides a concrete scheme as follows:
the steering drive axle steering mechanism comprises a steering knuckle, a supporting seat and a knuckle arm assembly; the knuckle includes a body portion and a straight arm portion; the upper part of the body part is provided with a first half pin hole; the lower part of the body part is provided with a lower main pin hole; the straight arm part is provided with a second half pin hole at the part opposite to the main body part; and the second half pin hole and the first half pin hole are matched and fixedly formed with an upper main pin hole.
Further, threaded holes are respectively formed in two end faces of the first half pin hole, and the threaded holes are symmetrically arranged relative to the axis of the upper main pin hole; through holes corresponding to the threaded holes are formed in two end faces of the second half pin hole, and fastening bolts penetrate through the through holes and are screwed with the threaded holes to enable the second half pin hole and the first half pin hole to be attached and fixed in an opposite mode.
Furthermore, the supporting seat is of a fork-shaped structure;
a first connecting hole is formed in the top end of the upper fork, the first connecting hole and the upper main pin hole are coaxially arranged, and an upper main pin shaft is sleeved in the upper main pin hole and the first connecting hole;
a second connecting hole is formed in the bottom end of the lower fork, the second connecting hole and the lower main pin hole are coaxially arranged, a cylindrical outer convex part with a third connecting hole is arranged in the knuckle arm assembly, and the cylindrical outer convex part is inserted into the lower main pin hole and is coaxial with the second connecting hole; and a lower main pin shaft is sleeved in the third connecting hole and the second connecting hole.
Furthermore, the lower end part of the first connecting hole and the upper end part of the second connecting hole are both provided with a limiting step; the limiting step enables the first connecting hole and the second connecting hole to be stepped holes.
Furthermore, the two ends of the upper main pin shaft and the two ends of the lower main pin shaft are both provided with chamfer structures, and threaded holes are formed in the tail end face of the upper main pin shaft and the tail end face of the lower main pin shaft.
Further, the device also comprises an upper bushing assembly and a lower bushing assembly; the upper bushing assembly is arranged between the upper main pin shaft and the upper main pin hole; and the lower bushing assembly is arranged between the lower main pin shaft and the third connecting hole.
Further, the upper bushing assembly comprises a steel sleeve, a first bimetal bushing and a first kingpin oil seal; the lower bushing assembly includes a second bimetallic bushing and a second king pin oil seal.
Furthermore, a thrust bearing is movably sleeved on the lower main pin shaft, and a gap is reserved between the aperture of the lower main pin hole and the outer diameter of the thrust bearing.
Furthermore, the knuckle arm assembly is fixed with the body part through four connecting bolts at the bottom.
The technical scheme has the following beneficial effects:
according to the scheme, the steering knuckle is designed into a split structure, and particularly is split at the position of the upper main pin hole, so that the upper main pin hole is formed by assembling and matching the first half pin hole and the second half pin hole. By adopting the mode, the mode of press fitting is not adopted when the bushing is installed. Through adopting this scheme not only can easy to assemble, all have very big promotion effect to solving later maintenance, reduction in production cost simultaneously.
Drawings
Fig. 1 is a structural view of a steering mechanism of the present invention.
FIG. 2 is a schematic view of the assembly of the steering mechanism support base and the upper and lower kingpins of the present invention.
FIG. 3 is a schematic view of a knuckle arm assembly of the steering mechanism of the present invention.
Fig. 4 is a schematic view of the bushing assembly of the steering mechanism of the present invention.
Wherein: 11 body parts, 12 straight arm parts, 13 fastening bolts, 20 supporting seats, 21 first connecting holes, 22 second connecting holes, 30-joint arm assemblies, 31 cylindrical outer convex parts, 32 connecting bolts, 33 third connecting holes, 40 upper bushing assemblies, 41 steel sleeves, 42 first bimetal bushings, 43 first main pin oil seals, 50 lower bushing assemblies, 52 second bimetal bushings, 53 second main pin oil seals, 60 thrust bearings, 101 upper main pin shafts and 102 lower main pin shafts.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
The embodiment provides a steering drive axle steering mechanism, which can effectively solve the problem of difficult assembly and later maintenance.
Specifically, the steering mechanism provided by the scheme comprises a steering knuckle, a supporting seat 20 and a knuckle arm assembly 30; the steering knuckle is designed in a split structure and specifically comprises a body part 11 and a straight arm part 12; the upper part of the body part 11 is provided with a first half pin hole; the lower part of the body part 11 is provided with a lower main pin hole; the straight arm part 12 has a second half pin hole at a position opposite to the body part 11; the second half pin hole and the first half pin hole are matched and fixed to form an upper main pin hole.
It can be understood that the upper main pin hole of the scheme is formed by assembling two half main pin holes, and the lower main pin hole is a complete hole; by adopting the split design of the upper main pin hole, great convenience can be provided for installation personnel during subsequent bushing installation; meanwhile, the maintenance and the replacement in the later period are facilitated.
In the scheme, two end faces of the first half pin hole are respectively provided with a threaded hole, and the threaded holes are symmetrically arranged relative to the axis of the upper main pin hole; through holes corresponding to the threaded holes are formed in the two end faces of the second half pin hole, and the fastening bolts 13 penetrate through the through holes and are screwed with the threaded holes to enable the second half pin hole and the first half pin hole to be attached and fixed in an opposite mode. Namely, the fixing and restructuring between the first half pin hole and the second half pin hole are realized by the fastening bolt 13, and in this way, the maintenance of the bushing can be completed only by disassembling the fastening bolt 13 in the later maintenance and replacement process. Compared with the traditional mode that the extrusion can be carried out only by special tools, the assembling process is better, and meanwhile, the assembling process is more convenient and time-saving.
In the scheme, the supporting seat 20 is of a fork-shaped structure; the connecting device specifically comprises an upper fork and a lower fork, wherein a first connecting hole 21 is formed in the top end of the upper fork, the first connecting hole 21 is coaxial with an upper king pin hole, and an upper king pin shaft 101 is sleeved in the upper king pin hole and the first connecting hole; a second connecting hole 22 is formed at the bottom end of the lower fork, the second connecting hole 22 is coaxially arranged with the lower main pin hole, a cylindrical outer convex part 31 with a third connecting hole 33 is arranged in the knuckle arm assembly 30, and the cylindrical outer convex part 31 is inserted into the lower main pin hole and is coaxial with the second connecting hole 22; the lower king pin shaft 102 is coupled to the third coupling hole 33 and the second coupling hole 22. It will be appreciated that the connection between the knuckle, the bearing 20 and the knuckle arm assembly 30 is made by the upper kingpin axle 101 and the lower kingpin axle 102 herein.
In the present embodiment, the arm assembly 30 is fixed to the body 11 by four connecting bolts 32 at the bottom.
In order to improve convenience in the assembly process, in the scheme, the lower end part of the first connecting hole 21 and the upper end part of the second connecting hole 22 are both provided with limiting steps; the limiting step makes the first connecting hole 21 and the second connecting hole 22 step holes. Therefore, when the upper main pin shaft 101 and the lower main pin shaft 102 are respectively installed, effective positioning and limiting can be achieved, and installation efficiency is improved.
In this scheme, both ends of upper king pin shaft 101 and lower king pin shaft 102 are all set to chamfer structure, and all set up the screw hole in the tail end face of upper king pin shaft and the tail end face of lower king pin shaft. The tail end is provided with a threaded hole for convenient disassembly during maintenance.
In the scheme, the device further comprises an upper bushing assembly 40 and a lower bushing assembly 50; the upper bushing assembly 40 is installed between the upper king pin shaft 101 and the upper king pin hole; the lower bushing assembly 50 is disposed between the lower king pin shaft 102 and the third connecting hole 33. And the lining assemblies are respectively arranged, so that the abrasion is reduced, and the service life is prolonged.
Optionally, the upper bushing assembly 40 includes a steel sleeve 41, a first bimetal bushing 42, and a first king pin oil seal 43; and the lower bushing assembly 50 includes a second bimetallic bushing 52 and a second king pin oil seal 53.
In the scheme, the lower main pin shaft 102 is also movably sleeved with the thrust bearing 60, and a gap is reserved between the aperture of the lower main pin hole and the outer diameter of the thrust bearing 60, so that the thrust bearing 60 can freely move.
According to the scheme, the steering knuckle is designed into a split structure, and particularly is split at the position of the upper main pin hole, so that the upper main pin hole is formed by assembling and matching the first half pin hole and the second half pin hole. By adopting the mode, the mode of press fitting is not adopted when the bushing is installed. Through adopting this scheme not only can easy to assemble, all have very big promotion effect to solving later maintenance, reduction in production cost simultaneously.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The steering drive axle steering mechanism comprises a steering knuckle, a supporting seat (20) and a knuckle arm assembly (30); characterized in that the steering knuckle comprises a body part (11) and a straight arm part (12); the upper part of the body part (11) is provided with a first half pin hole; the lower part of the body part (11) is provided with a lower main pin hole; the straight arm part (12) is provided with a second half pin hole at the part opposite to the main body part (11); and the second half pin hole and the first half pin hole are matched and fixedly formed with an upper main pin hole.
2. The steer-drive axle steering mechanism according to claim 1, wherein threaded holes are provided on both end faces of said first half pin hole, respectively, said threaded holes being symmetrically disposed with respect to the axis of said upper king pin hole; and through holes corresponding to the threaded holes are formed in two end faces of the second half pin hole, and fastening bolts (13) penetrate through the through holes and are screwed with the threaded holes to enable the second half pin hole and the first half pin hole to be oppositely attached and fixed.
3. The steer-drive axle steering mechanism according to claim 2, wherein said support base (20) is of fork configuration;
a first connecting hole (21) is formed in the top end of the upper fork, the first connecting hole (21) is coaxial with the upper king pin hole, and an upper king pin shaft (101) is sleeved in the upper king pin hole and the first connecting hole (21);
a second connecting hole (22) is formed in the bottom end of the lower fork, the second connecting hole (22) is arranged coaxially with the lower main pin hole, a cylindrical outer convex part (31) with a third connecting hole (33) is arranged in the knuckle arm assembly (30), and the cylindrical outer convex part (31) is inserted into the lower main pin hole and is coaxial with the second connecting hole (22); and a lower main pin shaft (102) is sleeved in the third connecting hole (33) and the second connecting hole (22).
4. The steer-drive axle steering mechanism according to claim 3, wherein the lower end of said first connection hole (21) and the upper end of said second connection hole (22) are provided with a limit step; the limiting step enables the first connecting hole (21) and the second connecting hole (22) to be stepped holes.
5. The steer-drive axle steering mechanism according to claim 4, wherein both ends of said upper kingpin axle (101) and said lower kingpin axle (102) are provided with chamfered structures, and wherein both end faces of said upper kingpin axle (101) and said lower kingpin axle (102) are provided with threaded holes therein.
6. The steer-drive axle steering mechanism according to claim 3, further comprising an upper bushing assembly (40) and a lower bushing assembly (50); the upper bushing assembly (40) is mounted between the upper king pin shaft (101) and the upper king pin hole; the lower bushing assembly (50) is disposed between the lower king pin shaft (102) and the third connecting hole (33).
7. The steer-drive axle steering mechanism according to claim 6, wherein said upper bushing assembly (40) comprises a steel sleeve (41), a first bimetal bushing (42) and a first king pin oil seal (43); the lower bushing assembly (50) includes a second bimetallic bushing (52) and a second king pin oil seal (53).
8. The steering mechanism of the steering drive axle according to claim 3, wherein the lower king pin shaft (102) is also movably sleeved with a thrust bearing (60), and a gap is formed between the aperture of the lower king pin hole and the outer diameter of the thrust bearing (60).
9. Steer-axle steering according to claim 1, wherein said knuckle arm assembly (30) is secured to said body portion (11) by means of four bottom attachment bolts (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037454.2U CN217396617U (en) | 2022-04-26 | 2022-04-26 | Steering mechanism of steering drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037454.2U CN217396617U (en) | 2022-04-26 | 2022-04-26 | Steering mechanism of steering drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217396617U true CN217396617U (en) | 2022-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221037454.2U Active CN217396617U (en) | 2022-04-26 | 2022-04-26 | Steering mechanism of steering drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217396617U (en) |
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2022
- 2022-04-26 CN CN202221037454.2U patent/CN217396617U/en active Active
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