CN111186261B - Automobile rear axle steering drive axle - Google Patents
Automobile rear axle steering drive axle Download PDFInfo
- Publication number
- CN111186261B CN111186261B CN202010071245.9A CN202010071245A CN111186261B CN 111186261 B CN111186261 B CN 111186261B CN 202010071245 A CN202010071245 A CN 202010071245A CN 111186261 B CN111186261 B CN 111186261B
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- Prior art keywords
- steering knuckle
- steering
- knuckle
- axle
- upper steering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
Abstract
The invention relates to an automobile rear axle steering drive axle which comprises a rear axle (2) provided with an axle housing (1), wherein the end parts of two ends of the rear axle (2) and the axle housing (1) are respectively connected with an automobile hub (3), the positions of two ends of the rear axle (2) and the axle housing (1), which are set to be distant from the hub, are respectively cut off, the two cut-off positions respectively connect the rear axle (2) at two sides of the cut-off surfaces through a ball cage type universal joint (4), the outer side of the axle housing (1) between the ball cage type universal joint (4) and the hub is respectively provided with a steering knuckle assembly, the steering knuckle assembly comprises an upper steering knuckle (5) and a lower steering knuckle (6) which are coaxially arranged, the upper steering knuckle (5) and the lower steering knuckle (6) are movably arranged on a frame, and the lower steering knuckle (6) is also connected to a steering gear through a trapezoidal arm (7). Compared with the prior art, the steering drive axle has the advantages of simple structure, wide applicability and easy modification of the drive axle into a steering drive axle, and realizes the steering of the rear axle.
Description
Technical Field
The invention relates to an automobile part, in particular to an automobile rear axle steering drive axle.
Background
At present, the four-wheel steering technology is rapidly developed, is not only widely applied to high-end vehicle types, but also gradually develops the market, improves the market competitiveness and strives for larger market share, the four-wheel steering technology is gradually developed towards middle and low-end vehicle types, the requirement of the four-wheel steering technology cannot be met by an independent drive axle and an independent steering axle, and the technology of modifying the drive axle into the steering drive axle becomes an essential technology. At present, a scheme of changing a widely-used drive axle into a steering drive axle is lacked in the market, and the scheme cannot adapt to the actual requirements of various vehicle types.
Chinese patent CN109436166A discloses a driving and steering mechanism for children's vehicles, which is mainly characterized in that only the wheels of the children's vehicles can be driven but not steered, two rods of a horizontal segment and a vertical segment are added to the original mechanism, and steering is realized by adding a steering driving unit. However, this solution requires a wheel-side driving device, which is relatively expensive, and requires a relatively high degree of integration of the structure.
Chinese patent CN209426844U discloses a steering drive axle, the four wheels have the same steering direction, the four wheels can run in parallel when going straight, turning and traversing, and the problems of tire wear, power obstruction and power loss caused by the asynchronous four wheels during steering are thoroughly solved. However, the scheme is directed at agricultural machinery, hydraulic steering is adopted, the space of the whole structure is large, and active steering cannot be realized.
Chinese patent CN107444490B discloses a steering drive front axle, which realizes the connection between a steering knuckle and a front axle housing, and can realize steering and driving. However, the scheme needs to adopt two sections of main pin structures, the design of a steering knuckle connected with an I-shaped beam is complex, a plurality of curved surfaces exist, the processing is troublesome, the cost is high, the support of the axle housing is not considered, the installation space of the first main pin structure is small, the requirement on assembly is high, the first main pin structure is connected with the axle housing, and the difficulty in installation of the axle housing is high. In addition, trapezoidal arm is many curved surfaces structure, and processing is difficult, and is with high costs, and in addition, trapezoidal arm is installed on the axle housing, and the installation degree of difficulty is big to the machining precision requirement to trapezoidal arm and mounting is high, otherwise has the interference risk with the axle housing. In addition, the connection of the half shafts at the half shafts inside the axle housing is a key design of the steering drive axle, and the proposal is not mentioned. In addition, the scheme is changed from a steering axle to a steering driving axle, and how to connect the driving half shaft with the wheel rim is not reflected.
Chinese patent CN109572412A discloses a wheel-side structure for a steering drive axle assembly and a steering drive axle assembly, which can realize the driving and steering functions of wheels. However, the scheme adopts a wheel-side driving scheme, and has the advantages of complex structure, high integration level, high requirement on installation precision and high cost. And one side semi-axis need install two rzeppa universal joints, and the price is not very light.
From the above solutions, it can be seen that in the related patents of the steering drive axle, on one hand, the design scheme of an independent steering drive axle, or the scheme of steering drive wheels, or the scheme of changing the steering drive axle into the steering drive axle is mainly considered, and these schemes are not suitable for changing the existing drive axle into the steering drive axle, have poor universality and are not suitable for improving the existing technology, and on the other hand, the structure is complex, and has multiple curved surfaces, so that the existing standard part cannot be adopted, and the processing is difficult.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a rear axle steering drive axle of an automobile.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an automobile rear axle steering axle, is including the rear axle that is equipped with the axle housing, rear axle and axle housing both ends tip connect automobile wheel hub respectively, rear axle and axle housing both ends set for distance department apart from wheel hub and cut respectively, two cuts the rear axle that the department will cut the section both sides through the rzeppa universal joint respectively and connect, rzeppa universal joint and wheel hub between the axle housing outside be equipped with the knuckle assembly respectively, the knuckle assembly including coaxial last knuckle and the lower knuckle that sets up, last knuckle and lower knuckle movable mounting on the frame, the lower knuckle still be connected to the steering gear through trapezoidal arm.
The upper steering knuckle comprises an upper steering knuckle cylindrical table, an upper steering knuckle cylindrical rod, an upper steering auxiliary member and an upper steering bearing assembly, and the lower steering knuckle comprises a lower steering knuckle cylindrical table, a lower steering auxiliary member and a lower steering bearing assembly;
the upper steering auxiliary member is horizontally arranged above the shaft shell, one end of the upper steering auxiliary member is fixedly connected with the shaft shell, the other end of the upper steering auxiliary member is fixedly connected with the upper steering knuckle cylindrical table, the upper steering knuckle cylindrical table is vertical to the upper steering auxiliary member and extends upwards, the upper steering cylindrical rod is fixed at the top of the upper steering knuckle cylindrical table and extends upwards, and the free end of the upper steering cylindrical rod is connected with the frame through an upper steering bearing assembly;
the lower steering auxiliary member is horizontally arranged below the shaft shell, one end of the lower steering auxiliary member is fixedly connected with the shaft shell, the other end of the lower steering auxiliary member is fixedly connected with the lower steering knuckle cylindrical table, the lower steering knuckle cylindrical table is vertical to the lower steering auxiliary member and extends downwards, the free end of the lower steering knuckle cylindrical table is connected with a frame through a lower steering bearing assembly, and the joint of the lower steering knuckle cylindrical table and the lower steering auxiliary member is connected to the steering gear through a trapezoidal arm;
the central axes of the upper steering knuckle cylindrical table and the lower steering knuckle cylindrical table are superposed.
The upper steering knuckle and the lower steering knuckle are welded and fixed on the shaft housing.
The upper steering auxiliary member and the lower steering auxiliary member are connected with the shaft shell and are respectively provided with an upper steering knuckle welding piece and a lower steering knuckle welding piece, and the upper steering auxiliary member and the lower steering auxiliary member are correspondingly welded on the shaft shell through the upper steering knuckle welding piece and the lower steering knuckle welding piece.
The upper steering knuckle and the lower steering knuckle are bolted and fixed on the shaft housing.
Go up to turn to vice component and the vice component connecting axle shell position of turning down be equipped with knuckle mounting and lower knuckle mounting respectively, go up knuckle mounting and lower knuckle mounting be equipped with respectively with axle shell periphery assorted cambered surface, go up to turn to vice component and the vice component installation of turning down after targetting in place, the cambered surface laminating axle shell of going up knuckle mounting and lower knuckle mounting, last knuckle mounting and lower knuckle mounting pass through bolt fastening and lock.
The upper steering bearing assembly comprises a first tapered roller bearing, a first stop washer and a first round nut, an upper steering knuckle boss is arranged at the joint of the upper steering knuckle cylindrical table and the upper steering knuckle cylindrical rod, the first tapered roller bearing and the first stop washer are sequentially mounted on the upper steering knuckle boss and locked through the first round nut, and an upper steering knuckle groove and a first thread which are matched with the first stop washer and the first round nut are arranged at the end part of the free end of the upper steering knuckle cylindrical table.
The lower steering bearing assembly comprises a second tapered roller bearing, a second stop washer and a second round nut, a lower steering knuckle boss is arranged on the lower steering knuckle cylindrical table close to the free end of the lower steering knuckle cylindrical table, the second tapered roller bearing and the second stop washer are sequentially arranged on the upper steering knuckle boss and locked through the second round nut, and an upper steering knuckle groove and a second thread which are matched with the second stop washer and the second round nut are arranged at the end of the free end of the lower steering knuckle cylindrical table.
The first tapered roller bearing is provided with a first bearing cover and a first bearing cover fixing plate, the first bearing cover fixing plate is sleeved on the outer side of the first tapered roller bearing, and the first bearing cover is arranged on the outer side of the first tapered roller bearing and is in bolted connection with the first bearing cover fixing plate through bolts.
The second tapered roller bearing is provided with a second bearing cover and a second bearing cover fixing plate, the second bearing cover fixing plate is sleeved on the outer side of the second tapered roller bearing, and the second bearing cover is arranged on the outer side of the second tapered roller bearing and is in bolted connection with the second bearing cover fixing plate through bolts.
Compared with the prior art, the invention has the following advantages:
(1) the scheme is simple, easy to process and realize, and has small space requirement on the whole vehicle;
(2) the materials of the processed parts are easy to obtain, and the processing cost is low;
(3) the whole vehicle arrangement scheme has strong portability and can be realized on various vehicle types;
(4) the processing precision requirement of the scheme is low, and the processing error in a certain range can be allowed;
(5) the length of knuckle on this scheme can be according to different frame structure adjustment size, and the suitability is than wider.
Drawings
FIG. 1 is a schematic structural view of a rear axle half shaft in embodiments 1 and 2 of the present invention;
FIG. 2 is a schematic broken view of a rear axle half shaft in embodiments 1 and 2 of the present invention;
fig. 3 is a schematic broken view of a ball-type gimbal according to embodiments 1 and 2 of the present invention;
fig. 4 is a schematic view showing welding of the rear shaft to the birfield joint in examples 1 and 2 of the present invention;
FIG. 5 is a schematic structural view of a knuckle assembly according to embodiment 1 of the present invention;
fig. 6 is an overall structural schematic view of an upper knuckle in embodiment 1 of the present invention;
fig. 7 is an overall structural schematic view of a lower knuckle in embodiment 1 of the present invention;
FIG. 8 is a schematic structural view of a knuckle assembly according to embodiment 2 of the present invention;
fig. 9 is an overall structural schematic view of an upper knuckle in embodiment 2 of the present invention;
fig. 10 is an overall structural schematic view of a lower knuckle in embodiment 2 of the present invention;
fig. 11 is a schematic structural view of a bearing cap in embodiments 1 and 2 of the present invention;
fig. 12 is a schematic structural view of the fixing plate of the bearing in embodiments 1 and 2 of the present invention.
In the figure, 1 is the axle housing, 2 is the rear axle, 3 is automobile wheel hub, 4 is the rzeppa universal joint, 5 is last knuckle, 6 is the lower knuckle, 7 is trapezoidal arm, 8 is the bearing cap, 9 is the bearing cap fixed plate, 51 is last knuckle cylinder platform, 52 is last knuckle accessory component, 53 is last knuckle boss, 54 is last knuckle welding spare, 55 is last knuckle mounting, 56 is last knuckle cylinder pole, 61 is lower knuckle cylinder platform, 62 is lower knuckle accessory component, 63 is lower knuckle boss, 64 is lower knuckle welding spare, 65 is lower knuckle mounting.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Example 1
The utility model provides an automobile rear axle steering drive axle, including the rear axle 2 that is equipped with axle housing 1, automobile wheel hub 3 is connected respectively to rear axle 2 and the 1 both ends tip of axle housing, rear axle 2 and the 1 both ends of axle housing are set for distance department apart from wheel hub and are cut respectively, two cuts the department and will cut the rear axle 2 of section both sides and couple together through the universal joint respectively, 1 outside of axle housing between universal joint and the wheel hub is equipped with the knuckle assembly respectively, the knuckle assembly includes last knuckle 5 and lower knuckle 6 of coaxial setting, go up knuckle 5 and 6 movable mounting of lower knuckle on the frame, lower knuckle 6 still is connected to the steering gear through trapezoidal arm 7, the universal joint is ball cage universal joint 4.
As shown in fig. 1, a schematic structural diagram of a half shaft of a rear shaft 2 is shown, a shaft shell 1 is arranged outside the rear shaft 2, and ends of the rear shaft 2 and the shaft shell are connected to an automobile hub 3, in this embodiment, a connection mode of the rear shaft 2 and a birfield universal joint 4 is specifically described by taking the half shaft of the rear shaft 2 as an example, as shown in fig. 2, a part of a straight line part indicated by a is directly cut on the original half shaft of the rear shaft 2 and the original shaft shell 1, a length of a mainly depends on a position of the whole automobile, and then a part of the shaft shell 1 is cut along a straight line part indicated by B, and the length of. As shown in fig. 3, a commercially available birfield joint 4 is used, and a portion of the joint is cut along a line indicated by E. Wherein the length of d is equal to the length of a, and the length of c depends on the position of the vehicle body. As shown in fig. 4, the cut half shaft of the rear shaft 2 and the cut birfield joint 4 are welded. Wherein, the outer lane of rzeppa universal joint 4 welds with the semi-axis F that is close to 3 parts of automobile wheel hub, and the inner circle of rzeppa universal joint 4 welds with the semi-axis G that is close to drive assembly, and wherein, the length that semi-axis G need stretch into the inner circle of rzeppa universal joint 4 is d. And after the welding connection of the universal joint and the half shaft is completed, the steering joint assembly is installed on the shaft shell 1 at the position of the half shaft F.
5-7, the upper steering knuckle 5 includes an upper steering knuckle cylindrical table 51, an upper steering secondary member 52 and an upper steering bearing assembly, and the lower steering knuckle 6 includes a lower steering knuckle cylindrical table 61, a lower steering secondary member 62 and a lower steering bearing assembly;
the upper steering auxiliary member 52 is horizontally arranged above the shaft shell 1, one end of the upper steering auxiliary member is fixedly connected with the shaft shell 1, the other end of the upper steering auxiliary member is fixedly connected with the upper steering knuckle cylindrical table 51, the upper steering knuckle cylindrical table 51 is vertical to the upper steering auxiliary member 52 and extends upwards, the upper steering cylindrical rod is fixed at the top of the upper steering knuckle cylindrical table 51 and extends upwards, and the free end of the upper steering cylindrical rod is connected with a frame through an upper steering bearing assembly;
the lower steering auxiliary member 62 is horizontally arranged below the shaft shell 1, one end of the lower steering auxiliary member 62 is fixedly connected with the shaft shell 1, the other end of the lower steering auxiliary member is fixedly connected with the lower steering knuckle cylindrical table 61, the lower steering knuckle cylindrical table 61 extends downwards perpendicular to the lower steering auxiliary member 62, the free end of the lower steering knuckle cylindrical table is connected with a vehicle frame through a lower steering bearing assembly, the joint of the lower steering knuckle cylindrical table 61 and the lower steering auxiliary member 62 is connected to a steering gear through a trapezoidal arm 7, and the trapezoidal arm 7 is directly welded with the lower steering auxiliary member 62 in the lower steering knuckle 6 or the trapezoidal arm 7 and the lower steering auxiliary member 62 are directly made into an integrated structural member;
the central axes of the upper steering knuckle cylindrical table 51 and the lower steering knuckle cylindrical table 61 coincide.
The upper steering knuckle 5 and the lower steering knuckle 6 are welded and fixed on the axle housing 1, specifically, an upper steering knuckle welding part 54 and a lower steering knuckle welding part 64 are respectively arranged at the positions where the upper steering sub-component 52 and the lower steering sub-component 62 are connected with the axle housing 1, and the upper steering sub-component 52 and the lower steering sub-component 62 are correspondingly welded on the axle housing 1 through the upper steering knuckle welding part 54 and the lower steering knuckle welding part 64.
The upper steering bearing assembly comprises a first tapered roller bearing, a first stop washer and a first round nut, an upper steering knuckle boss 53 is arranged at the joint of an upper steering knuckle cylindrical table 51 and an upper steering knuckle cylindrical rod 56, the first tapered roller bearing and the first stop washer are sequentially mounted on the upper steering knuckle boss 53 and locked through the first round nut, and an upper steering knuckle 5 groove and a first thread which are matched with the first stop washer and the first round nut are arranged at the end part of the free end of the upper steering knuckle cylindrical table 51. The length of the first thread depends on the width of the first tapered roller bearing, the first stop washer, and the first round nut. The width and depth of the upper knuckle 5 groove depends on the size of the first stop washer. The dimensions of the first tapered roller bearing, the first stop washer, and the first round nut depend on the diameter of the upper knuckle cylindrical stem 56.
The lower steering bearing assembly comprises a second tapered roller bearing, a second stop washer and a second round nut, a lower steering knuckle boss 63 is arranged on the lower steering knuckle cylindrical table 61 close to the free end of the lower steering knuckle cylindrical table, the second tapered roller bearing and the second stop washer are sequentially mounted on the upper steering knuckle boss 53 and locked through the second round nut, and an upper steering knuckle 5 groove and a second thread matched with the second stop washer and the second round nut are arranged at the end of the free end of the lower steering knuckle cylindrical table 61. The length of the second thread depends on the width of the second tapered roller bearing, the second stop washer, and the second round nut. The width and depth of the groove of the lower knuckle 6 depend on the dimensions of the second stop washer. The dimensions of the second tapered roller bearing, the second stop washer, and the second round nut depend on the diameter of the lower knuckle cylindrical table 61.
The first tapered roller bearing is provided with a first bearing cover and a first bearing cover fixing plate, the first bearing cover fixing plate is sleeved on the outer side of the first tapered roller bearing, and the first bearing cover is arranged on the outer side of the first tapered roller bearing and is in bolted connection with the first bearing cover fixing plate through bolts. The second tapered roller bearing is provided with a second bearing cover and a second bearing cover fixing plate, the second bearing cover fixing plate is sleeved on the outer side of the second tapered roller bearing, and the second bearing cover is arranged on the outer side of the second tapered roller bearing and is in bolted connection with the second bearing cover fixing plate through bolts.
In this embodiment, the first tapered roller bearing and the second tapered roller bearing have the same size, and therefore the first bearing cover and the second bearing cover have the same size, and the first bearing cover fixing plate and the second bearing cover fixing plate have the same size. As shown in fig. 11, which is a schematic structural diagram of the bearing cover 8, a boss is arranged on the bearing cover 8, the boss in the bearing cover 8 is designed according to the size of the selected tapered roller bearing outer ring, the inner diameter of the boss is slightly smaller than the size of the tapered roller outer ring by 2-3 mm, and the size of the outer ring is slightly larger than the size of the tapered roller bearing outer ring by 2-3 mm. The height of the boss is 3-4 mm higher than the sum of the widths of the stop washer and the round nut, and four bolt holes are formed in the bearing cover 8 and used for bolting and fixing the bearing cover 8 on the bearing cover fixing plate 9. As shown in fig. 12, which is a schematic structural diagram of the bearing cap fixing plate 9, a hole is formed in the bearing cap fixing plate 9, the hole is sleeved on the outer side of the bearing, and the diameter of the hole is slightly larger than the outer ring of the tapered roller bearing by 0.1-0.5 mm. Four bolt holes corresponding to the bolt holes on the bearing cover 8 are correspondingly arranged on the bearing cover fixing plate 9.
The invention can be used for changing the rear axle 2 of the automobile from a drive axle to a steering drive axle so as to realize the change of the front wheel steering to the four-wheel steering. This design only need break off rear axle 2 and axle housing 1, near 3 departments of automobile wheel hub correspond increase rzeppa universal joint 4 and knuckle assembly can, can remain the structure of original transaxle as far as possible, reduce the structure that changes the volume and change, needn't redesign the transaxle of rear axle 2. On the premise of ensuring reliability, the drive axle is modified by adopting low cost and simple procedures as far as possible.
Example 2
The present embodiment is different from embodiment 1 in that: as shown in fig. 8 to 10, the upper steering knuckle 5 and the lower steering knuckle 6 are bolted and fixed on the axle housing 1, specifically, an upper steering knuckle fixing part 55 and a lower steering knuckle fixing part 65 are respectively arranged at the positions where the upper steering knuckle 52 and the lower steering knuckle 62 are connected to the axle housing 1, an arc surface matched with the periphery of the axle housing 1 is respectively arranged on the upper steering knuckle fixing part 55 and the lower steering knuckle fixing part 65, after the upper steering knuckle 52 and the lower steering knuckle 62 are installed in place, the arc surfaces of the upper steering knuckle fixing part 55 and the lower steering knuckle fixing part 65 are attached to the axle housing 1, and the upper steering knuckle fixing part 55 and the lower steering knuckle fixing part 65 are fixed and locked by bolts. The radii of the arcs of the upper knuckle mount 55 and the lower knuckle mount 65 depend on the outer diameter of the axle housing 1, and two bolt holes are symmetrically provided for bolt bolting, respectively. The rest is the same as in example 1.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (9)
1. The automobile rear axle steering drive axle comprises a rear axle (2) provided with an axle housing (1), wherein the end parts of two ends of the rear axle (2) and the axle housing (1) are respectively connected with an automobile hub (3), and is characterized in that the two ends of the rear axle (2) and the axle housing (1) are respectively cut off from the set distance of the wheel hub, the two cut-off parts respectively connect the rear axles (2) at two sides of the cut-off parts through a ball cage type universal joint (4), the outer sides of the axle housing (1) between the ball cage type universal joint (4) and the wheel hub are respectively provided with a steering knuckle assembly, the steering knuckle assembly comprises an upper steering knuckle (5) and a lower steering knuckle (6) which are coaxially arranged, the upper steering knuckle (5) and the lower steering knuckle (6) are movably arranged on a frame, and the lower steering knuckle (6) is also connected to a steering gear through a trapezoidal arm (7);
the upper steering knuckle (5) comprises an upper steering knuckle cylindrical table (51), an upper steering knuckle cylindrical rod (56), an upper steering auxiliary member (52) and an upper steering bearing assembly, and the lower steering knuckle (6) comprises a lower steering knuckle cylindrical table (61), a lower steering auxiliary member (62) and a lower steering bearing assembly;
the upper steering knuckle auxiliary member (52) is horizontally arranged above the shaft shell (1), one end of the upper steering knuckle auxiliary member is fixedly connected with the shaft shell (1), the other end of the upper steering knuckle auxiliary member is fixedly connected with the upper steering knuckle cylindrical table (51), the upper steering knuckle cylindrical table (51) is perpendicular to the upper steering knuckle auxiliary member (52) and extends upwards, the upper steering knuckle cylindrical rod (56) is fixed to the top of the upper steering knuckle cylindrical table (51) and extends upwards, and the free end of the upper steering knuckle cylindrical rod (56) is connected with a frame through an upper steering bearing assembly;
the lower steering auxiliary member (62) is horizontally arranged below the shaft shell (1), one end of the lower steering auxiliary member is fixedly connected with the shaft shell (1), the other end of the lower steering auxiliary member is fixedly connected with the lower steering knuckle cylindrical table (61), the lower steering knuckle cylindrical table (61) is perpendicular to the lower steering auxiliary member (62) and extends downwards, the free end of the lower steering auxiliary member is connected with a frame through a lower steering bearing assembly, and the joint of the lower steering knuckle cylindrical table (61) and the lower steering auxiliary member (62) is connected to a steering gear through a trapezoidal arm (7);
the central axes of the upper steering joint cylindrical table (51) and the lower steering joint cylindrical table (61) are superposed.
2. The vehicle rear axle steer-drive according to claim 1, wherein said upper (5) and lower (6) knuckles are welded to the axle housing (1).
3. The rear axle steering axle of a vehicle as claimed in claim 2, characterized in that the upper steering sub-member (52) and the lower steering sub-member (62) are connected to the axle housing (1) by an upper steering knuckle welding part (54) and a lower steering knuckle welding part (64), respectively, and the upper steering sub-member (52) and the lower steering sub-member (62) are welded to the axle housing (1) by the upper steering knuckle welding part (54) and the lower steering knuckle welding part (64), respectively.
4. The vehicle rear axle steer-drive according to claim 1, wherein said upper (5) and lower (6) knuckles are bolted to the axle housing (1).
5. The automobile rear axle steering drive axle according to claim 4, characterized in that an upper steering knuckle fixing member (55) and a lower steering knuckle fixing member (65) are respectively arranged at the positions where the upper steering knuckle fixing member (52) and the lower steering knuckle fixing member (62) are connected with the axle housing (1), the upper steering knuckle fixing member (55) and the lower steering knuckle fixing member (65) are respectively provided with arc surfaces matched with the periphery of the axle housing (1), after the upper steering knuckle fixing member (52) and the lower steering knuckle fixing member (62) are installed in place, the arc surfaces of the upper steering knuckle fixing member (55) and the lower steering knuckle fixing member (65) are attached to the axle housing (1), and the upper steering knuckle fixing member (55) and the lower steering knuckle fixing member (65) are fixedly locked through bolts.
6. The automobile rear axle steering drive axle according to claim 1, characterized in that the upper steering bearing assembly comprises a first tapered roller bearing, a first stop washer and a first round nut, an upper steering knuckle boss (53) is arranged at the joint of the upper steering knuckle cylindrical platform (51) and the upper steering knuckle cylindrical rod (56), the first tapered roller bearing and the first stop washer are sequentially arranged on the upper steering knuckle boss (53) and locked through the first round nut, and an upper steering knuckle (5) groove and a first thread matched with the first stop washer and the first round nut are arranged at the end part of the free end of the upper steering knuckle cylindrical platform (51).
7. The rear axle steer-drive of an automobile according to claim 1, wherein said lower steering bearing assembly comprises a second tapered roller bearing, a second stop washer and a second round nut, said lower steering knuckle cylindrical table (61) is provided with a lower steering knuckle boss (63) near its free end, said second tapered roller bearing and said second stop washer are mounted on said upper steering knuckle boss (53) in turn and locked by said second round nut, said lower steering knuckle cylindrical table (61) is provided at its free end with an upper steering knuckle (5) groove and a second thread matching said second stop washer and said second round nut.
8. The automobile rear axle steering axle according to claim 6, wherein the first tapered roller bearing is provided with a first bearing cover and a first bearing cover fixing plate, the first bearing cover fixing plate is sleeved outside the first tapered roller bearing, and the first bearing cover is arranged outside the first tapered roller bearing and is bolted with the first bearing cover fixing plate through bolts.
9. The automobile rear axle steering axle according to claim 7, wherein the second tapered roller bearing is provided with a second bearing cover and a second bearing cover fixing plate, the second bearing cover fixing plate is sleeved outside the second tapered roller bearing, and the second bearing cover is arranged outside the second tapered roller bearing and is bolted with the second bearing cover fixing plate through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010071245.9A CN111186261B (en) | 2020-01-21 | 2020-01-21 | Automobile rear axle steering drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010071245.9A CN111186261B (en) | 2020-01-21 | 2020-01-21 | Automobile rear axle steering drive axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111186261A CN111186261A (en) | 2020-05-22 |
| CN111186261B true CN111186261B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010071245.9A Active CN111186261B (en) | 2020-01-21 | 2020-01-21 | Automobile rear axle steering drive axle |
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| CN (1) | CN111186261B (en) |
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| CN106671715A (en) * | 2016-12-27 | 2017-05-17 | 广州汽车集团股份有限公司 | Automobile and Macpherson suspension |
| CN207327993U (en) * | 2017-09-29 | 2018-05-08 | 比亚迪股份有限公司 | Steering drive axle assembly and vehicle |
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2020
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| CN111186261A (en) | 2020-05-22 |
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