CN111332363B - Steering knuckle for racing car and adjusting method thereof - Google Patents
Steering knuckle for racing car and adjusting method thereof Download PDFInfo
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- CN111332363B CN111332363B CN202010177393.9A CN202010177393A CN111332363B CN 111332363 B CN111332363 B CN 111332363B CN 202010177393 A CN202010177393 A CN 202010177393A CN 111332363 B CN111332363 B CN 111332363B
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- knuckle arm
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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
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Abstract
The application relates to a steering knuckle for racing cars and an adjusting method thereof, relating to the technical field of automobile parts and comprising the following steps: the steering knuckle body is provided with a connecting end on one side, and the connecting end is provided with a first sliding chute; the steering knuckle arm is provided with a second sliding groove; the locking mechanism is used for limiting the relative rotation of the connecting end and the knuckle arm when the locking mechanism is partially positioned in the first sliding groove and partially positioned in the second sliding groove so as to enable the knuckle arm to be in a locking state; an unlocking mechanism configured to enter the second slide groove at least partially under an external force and push the locking mechanism completely into the first slide groove to bring the knuckle arm into a rotationally adjustable state; and the elastic reset mechanism is configured to push the locking mechanism to keep the knuckle arm in a locking state after the external force of the unlocking mechanism is removed. This application accessible release mechanism pushes first spout completely with locking mechanical system, makes the knuckle arm be in and rotates adjustable state, and then the steering characteristic of quick adjustment cycle racing.
Description
Technical Field
The application relates to the technical field of automobile parts, in particular to a steering knuckle for a racing car and an adjusting method thereof.
Background
At present, for the racing car which is used for racing in a closed circular racing yard, the running condition has the following specificity:
1. the racing car race means that a certain repetitive competitive project with a specified number of turns is completed on a specified track.
2. It is generally classified into a high-speed track, a low-speed track or a high-low speed composite track according to the scale and layout of the track. The centrifugal force borne by the high-speed racing track is larger, the slip angle and the difference value thereof generated by the inner wheel and the outer wheel are also larger, and the opposite is true for the low-speed racing track.
3. Except in special cases, the racing race is basically not interrupted by weather changes, but the racing race is allowed to temporarily enter a maintenance area to adjust vehicle parameters. The friction coefficient of the road surface is reduced in rainy days or snowy days, the maximum running speed and the centrifugal force of the racing car are greatly reduced, and the slip angles and the difference value thereof generated by the inner wheel and the outer wheel are correspondingly reduced.
The steering knuckle of the racing car is used as an important part for realizing steering on the racing car, and the non-adjustable steering knuckle structure adopted by a common passenger car cannot meet the performance requirement of the racing car.
In the related art, in order to meet different steering requirements of racing cars under different tracks and weathers, a steering knuckle of one racing car needs to have different forms so that the racing car can be conveniently replaced according to the tracks and the weathers.
However, the various steering knuckles not only increase the design complexity, but also greatly increase the manufacturing cost.
Disclosure of Invention
The embodiment of the application provides a steering knuckle for a racing car, and aims to solve the problem that the structure of the steering knuckle of the racing car in the related art is not adjustable.
In a first aspect, there is provided a steering knuckle for a racing car, comprising:
the steering knuckle comprises a steering knuckle body, wherein one side of the steering knuckle body is provided with a connecting end, and the connecting end is provided with a first sliding chute;
the steering knuckle arm is movably connected to the connecting end and is provided with a second sliding groove opposite to the first sliding groove;
a locking mechanism slidably disposed in the first and second slide grooves, the locking mechanism being configured to limit relative rotation between the connecting end and the knuckle arm when a portion of the locking mechanism is disposed in the first slide groove and a portion of the locking mechanism is disposed in the second slide groove, so that the knuckle arm is in a locked state;
an unlocking mechanism configured to be at least partially inserted into the second slide groove by an external force and to fully push the locking mechanism into the first slide groove, so that the knuckle arm is in a rotationally adjustable state;
and an elastic return mechanism configured to push the lock mechanism to keep the knuckle arm in a locked state when the external force of the unlock mechanism is removed.
In some embodiments, the height of the locking mechanism along the axis of the first sliding chute is smaller than the depth of the first sliding chute and larger than the depth of the second sliding chute.
In some embodiments, the locking mechanism is a cylindrical external spline structure, and the inner walls of the first sliding chute and the second sliding chute are both internal spline structures matched with the external spline structure.
In some embodiments, the knuckle arm further defines a plurality of insertion holes communicating with the second sliding groove;
the unlocking mechanism comprises a pressing part and an extending part extending from the pressing part, and the extending part can be slidably inserted into the jack.
In some embodiments, the pressing portion is an annular pressing ring;
the extension part comprises a plurality of push plates, the push plates are circumferentially arranged along one side of the compression ring, the number of the push plates is the same as that of the jacks, a clamping block is arranged on one side, facing the axis of the compression ring, of each push plate, and the width of each clamping block along the circumferential direction of the compression ring is smaller than that of each push plate.
In some embodiments, the connecting end further defines a positioning hole communicating with the first sliding groove, the knuckle arm further defines a through hole communicating with the second sliding groove, and the plurality of insertion holes are arranged along an outer ring of the through hole;
the steering knuckle further comprises a connecting assembly, the locking mechanism and the elastic reset mechanism are sleeved on the connecting assembly, one end of the connecting assembly penetrates through the positioning hole, the other end of the connecting assembly penetrates through the through hole, and the connecting assembly is used for not blocking relative rotation between the connecting end and the steering knuckle arm and limiting separation of the connecting end and the steering knuckle arm.
In some embodiments, the above-described connection assembly includes:
the fixing bolt is provided with external threads, the bolt head of the fixing bolt is arranged at the part, positioned between the compression ring and the fixture blocks, of the push plate, and the outer diameter of the bolt head is larger than the inner diameter of a circular ring where the fixture blocks are positioned and smaller than the inner diameter of the compression ring;
and the adjusting nut comprises a boss and a thread section which are integrally formed, the thread section is provided with an internal thread matched with the external thread and is in threaded connection with the fixing bolt, and the outer diameter of the boss is larger than the inner diameter of the positioning hole.
In some embodiments, the end surface of the threaded section is provided with the same number of tenons as the number of the insertion holes, each tenon is inserted into one insertion hole, and the outer diameter of the ring where the plurality of tenons are located is smaller than the inner diameter of the ring where the plurality of push plates are located.
In some embodiments, an avoiding groove communicated with the insertion hole is formed in one side, away from the second sliding groove, of the knuckle arm, a circle of convex ring is formed between the avoiding groove and the through hole, and grooves communicated with the insertion holes in a one-to-one correspondence mode are formed in the outer wall of the convex ring.
In a second aspect, there is provided a method of adjusting a knuckle for a racing car, comprising the steps of adjusting and locking;
the adjusting step includes:
applying an acting force to an unlocking mechanism to enable at least part of the unlocking mechanism to enter the second sliding groove, completely pushing the locking mechanism into the first sliding groove, and adjusting the knuckle arm to a rotation-adjustable state;
rotating the knuckle arm to adjust the included angle between the knuckle arm and the knuckle body;
the above-mentioned locking includes:
and the elastic reset mechanism pushes the locking mechanism to be partially positioned in the first sliding groove and partially positioned in the second sliding groove so as to lock the knuckle arm after the acting force on the unlocking mechanism is cancelled.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a knuckle for cycle racing, when locking mechanical system part is located first spout, when the part is located the second spout, can restrict the relative rotation of link and knuckle arm, make the knuckle arm be in the locking state, release mechanism can get into the second spout at least partially under the exogenic action, and push locking mechanical system into first spout completely, make the knuckle arm be in and rotate adjustable state, after release mechanism's external force, elasticity canceling mechanism can promote locking mechanical system, make the knuckle arm keep in the locking state. Therefore, when the steering knuckle needs to be adjusted according to different tracks or weather conditions, the locking mechanism can be directly pushed into the first sliding groove completely through the unlocking mechanism, so that the steering knuckle arm is in a rotation adjustable state, the steering characteristic of the racing car is rapidly adjusted, and the abrasion loss of tires is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a knuckle provided in an embodiment of the present application;
FIG. 2 is an exploded view of a steering knuckle provided in an embodiment of the present application;
FIG. 3 is a cross-sectional view of a knuckle body provided in an embodiment of the present application;
FIG. 4 is a schematic illustration of a vehicle meeting Ackerman steering during a turn;
FIG. 5 is a schematic illustration of a vehicle traveling straight through satisfying Ackerman steering;
FIG. 6 is a schematic structural view of a knuckle arm provided in an embodiment of the present application;
FIG. 7 is a bottom view of FIG. 6;
FIG. 8 is a top view of FIG. 6;
FIG. 9 is a cross-sectional view of FIG. 6;
FIG. 10 is a schematic structural diagram of an unlocking cap provided in an embodiment of the present application;
FIG. 11 is a top view of FIG. 10;
FIG. 12 is a schematic structural view of an adjusting nut according to an embodiment of the present disclosure;
FIG. 13 is a cross-sectional schematic view of a track arm provided in accordance with an embodiment of the present application in a locked condition;
FIG. 14 is a cross-sectional schematic view of a knuckle arm in a rotationally adjustable state as provided in an embodiment of the present application;
fig. 15 is a schematic diagram of the relative positions of the center of the outer ball pin of the steering tie rod and the king pin axis in the same horizontal plane in two locking states of the steering knuckle provided by the embodiment of the present application.
Reference numerals:
1-a steering knuckle body, 11-a first mounting hole and 12-a second mounting hole;
2-connecting end, 21-first sliding chute, 22-positioning hole;
3-a knuckle arm, 31-a second sliding groove, 32-an insertion hole, 33-a through hole, 34-an avoidance groove and 35-a third mounting hole;
4-a locking mechanism;
5-an elastic reset mechanism;
6-an unlocking mechanism, 61-a pressing ring, 62-a push plate and 63-a clamping block;
7-anchor bolt, 71-bolt head;
8-adjusting nut, 81-boss, 82-thread section and 83-tenon;
9-hexagonal wrench socket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a steering knuckle for a racing car, which can solve the problem that the included angle between a steering knuckle body 1 and a steering knuckle arm 3 of the steering knuckle is not adjustable.
As shown in fig. 1 and 2, the knuckle for racing of the present embodiment includes a knuckle body 1, a knuckle arm 3, a locking mechanism 4, an unlocking mechanism 6, and a resilient return mechanism 5.
As shown in fig. 3, a connecting end 2 is disposed at one side of the knuckle body 1, and the connecting end 2 is provided with a first sliding groove 21. The knuckle body 1 is further provided with a first mounting hole 11 for mounting a hub and a second mounting hole 12 for mounting a kingpin. Wherein, the axis of the first mounting hole 11 is perpendicular to the axis of the second mounting hole 12, and the axis of the second mounting hole 12 is parallel to the axis of the first sliding chute 21.
The knuckle arm 3 is movably connected to the connecting end 2, and the knuckle arm 3 is located at one side of the connecting end 2 where the first sliding groove 21 is formed. The knuckle arm 3 is opened with a second slide groove 31 disposed opposite to the first slide groove 21. A third mounting hole 35 for mounting an outer ball pin of a tie rod is further formed in the other side of the knuckle arm 3.
The lock mechanism 4 is slidably assembled in the first slide groove 21 and the second slide groove 31. The locking mechanism 4 is configured to restrict the relative rotation of the connecting end 2 and the knuckle arm 3 when the connecting end is partially located in the first slide groove 21 and partially located in the second slide groove 31, so that the knuckle arm 3 is in a locked state.
The unlocking mechanism 6 is configured to be able to enter at least partially into the second link 31 by an external force and to push the locking mechanism 4 completely into the first link 21, so that the track arm 3 is in a rotationally adjustable state.
The elastic return mechanism 5 is configured to push the locking mechanism 4 when the external force of the unlocking mechanism 6 is removed, so that the locking mechanism 4 is partially located in the first slide groove 21 and partially located in the second slide groove 31, thereby keeping the knuckle arm 3 in the locked state.
Preferably, the elastic return mechanism 5 is of a helical spring structure. The coil spring structure is disposed in the first sliding groove 21, and one end of the coil spring structure abuts against the bottom wall of the first sliding groove 21, and the other end thereof abuts against the locking mechanism 4.
For a vehicle running on four wheels and steering by front wheels, the rotation angle of the inner side wheels is required to be larger than that of the outer side wheels in order to avoid abrasion of tires in the turning process due to different running tracks of the inner side wheels and the outer side wheels. As shown in fig. 4, the intersection (S) of the normal extension lines of the inner wheel and the outer wheel is required to fall on the normal extension line of the rear axle, which is called ackerman steering, and the inner wheel rotation angle and the outer wheel rotation angle satisfying the ackerman steering characteristic are called an inner wheel ideal rotation angle and an outer wheel ideal rotation angle.
As shown in fig. 5, A, D represents the intersection point of the left and right kingpin axes, respectively, with the ground, and B, C represents the projected points of the tie rod left and right outer ball pins, respectively, with the knuckle arm 3, respectively, on the ground. When the intersection point of the extension lines of the AB and the CD is positioned on the point O of the symmetrical center of the rear shaft, the wheels can meet the Ackerman steering geometric characteristics under each corner.
When the intersection O is located in front of the rear axle, the inside wheel angle is greater than the angle at which it meets a few attmann steering, referred to as over ackermann steering. When the intersection O is located behind the rear axle, the inside wheel angle is less than it would be if ackermann steering were satisfied, referred to as under ackermann steering. When the intersection point O is located at infinity behind the rear axle, the rotation angles of the inner and outer wheels are the same, which is called parallel steering. The relationship between the inboard and outboard wheel corners may be collectively referred to as a steering geometry.
The three steering characteristics described above are generally quantified using ackermann ratios, which are defined as follows:
TABLE 1
The ackermann ratios for the different turning characteristics are seen in table 1 above.
Since the tyre is made of elastic rubber, when it is subjected to a lateral reaction force of the ground due to the centrifugal force of the curve during rolling, the actual running direction of the tyre makes an angle with the pointing direction of the rim of the wheel, which is called the tyre slip angle.
The greater the lateral force to which the tire is subjected in rolling, the greater the cornering angle it produces. During the turning process of the vehicle, load transfer is generated due to the side inclination of the vehicle body, so that the lateral acting force of the ground on the outer side wheel is larger than that of the inner side wheel, namely, the side deflection angle of the outer side tire is larger than that of the inner side tire. In this case, even if the steering geometry satisfies the ackermann characteristic, the overall rotation angle of the inner wheel (inner wheel rotation angle + inner tire slip angle), and the overall rotation angle of the outer wheel (outer wheel rotation angle + outer tire slip angle) exhibit the ackermann steering characteristic.
For general passenger vehicles mainly used for household use, due to various reasons such as speed limitation, driving safety and the like, the speed of the vehicle is not high when the vehicle turns, the urban low-speed turning around or the right-angle turning is more, the lateral force on the tire is not large, and the slip angle and the difference value generated by the left wheel and the right wheel are small, so that only a fixed very small ackermann is needed to be arranged to counteract the ackermann phenomenon generated due to the deformation of the tire caused by the lateral force, the tire is protected from abrasion, and the ackermann ratio is usually 65-80%.
However, when a racing vehicle traveling at a high speed is turning, a large lateral force is generated at the wheel contact position to resist the centrifugal force. Because the wheel is inclined under the action of centrifugal force, the lateral force of the outer wheel is far greater than that of the inner wheel, so that the lateral deflection angle generated by the outer wheel is greater than that of the inner wheel, and therefore, the single included angle between the steering knuckle body 1 and the steering knuckle arm 3 cannot adapt to the requirements of high-speed turning and slow turning and low-speed turning of different racing tracks.
The steering knuckle provided by the embodiment of the application can conveniently and quickly adjust the included angle between the steering knuckle body 1 and the steering knuckle arm 3 according to the track and weather conditions of the racing car, and can adjust the relative position of the center (B, C) of the outer ball pin of the steering cross pull rod and the axis (A, D) of the kingpin in the same horizontal plane, so that the relative position between the O point and the rear axle is changed, and the steering characteristic of the racing car can be adjusted among the steering geometries of parallel steering, under-Akman, Ackerman and over-Ackerman.
Specifically, when the locking mechanism 4 is partially located in the first sliding groove 21 and partially located in the second sliding groove 31, the relative rotation between the connecting end 2 and the knuckle arm 3 can be limited, so that the knuckle arm 3 is in a locked state, the unlocking mechanism 6 can at least partially enter the second sliding groove 31 under the action of external force, the locking mechanism 4 is completely pushed into the first sliding groove 21, so that the knuckle arm 3 is in a rotation adjustable state, and after the external force of the unlocking mechanism 6 is removed, the elastic resetting mechanism 5 can push the locking mechanism, so that the knuckle arm 3 is kept in the locked state. Therefore, when the included angle between the steering knuckle body 1 and the steering knuckle arm 3 needs to be adjusted according to different racing tracks or weather conditions, the locking mechanism 4 can be directly pushed into the first sliding groove 21 completely through the unlocking mechanism 6, so that the steering knuckle arm 3 is in a rotation adjustable state, the steering characteristic of the racing car is rapidly adjusted, and the tire wear amount is reduced.
Preferably, the height of the locking mechanism 4 along the axial direction of the first sliding chute 21 is smaller than the depth of the first sliding chute 21 and larger than the depth of the second sliding chute 31, so as to ensure that the locking mechanism 4 can completely enter the first sliding chute 21 under the action of the external force, and simultaneously cannot completely enter the second sliding chute 31 under the action of the elastic restoring mechanism 5 after the external force is cancelled.
Further, the locking mechanism 4 is a cylindrical external spline structure, and the inner walls of the first sliding slot 21 and the second sliding slot 31 are both internal spline structures matched with the external spline structures, so as to ensure that when the locking mechanism 4 is partially located in the first sliding slot 21 and partially located in the second sliding slot 31, the connecting end 2 and the knuckle arm 3 cannot rotate relatively.
Preferably, the external spline structure of the locking mechanism 4 is an 18-tooth spline structure, and correspondingly, the internal spline structure of the inner walls of the first slide groove 21 and the second slide groove 31 is also an 18-tooth spline structure.
Optionally, the connecting end 2 is further provided with 18 scale marks corresponding to the 18-tooth spline, and the knuckle arm 3 is provided with 1 mark line. When the knuckle arm 3 is in the rotationally adjustable state, the knuckle arm 3 can be rotated according to the scale marks, and the rotation angle is determined by aligning the mark line with one of the scale marks, so that 18 lock states in total can be adjusted.
As shown in fig. 6 to 9, in the present embodiment, the knuckle arm 3 further has a plurality of insertion holes 32 communicating with the second slide grooves 31.
The unlocking mechanism 6 includes a pressing portion and an extending portion extending from the pressing portion, and the extending portion is slidably inserted into the insertion hole 32. By pressing the pressing portion, the extending portion can pass through the insertion hole 32 and enter the second sliding groove 31, so as to push the locking mechanism 4 into the first sliding groove 21 completely.
As shown in fig. 10 and 11, the pressing portion is specifically an annular pressing ring 61. The extension part includes a plurality of push plates 62, and the push plates 62 are arranged along one side of the pressing ring 61 in a circumferential direction. The number of the push plates 62 is the same as that of the insertion holes 32, and each push plate 62 is inserted into one insertion hole 32.
One side of each push plate 62 facing the axis of the press ring 61 is provided with a fixture block 63, and the width of the fixture block 63 along the circumferential direction of the press ring 61 is smaller than the width of the push plate 62. Preferably, the insertion hole 32 in this embodiment is a convex-shaped groove, so that the wide mouth of the convex-shaped groove is matched with the push plate 62, and the narrow mouth of the convex-shaped groove is matched with the fixture block 63.
Furthermore, the connecting end 2 is further provided with a positioning hole 22 communicated with the first sliding groove 21. The inner diameter of the positioning hole 22 is smaller than the inner diameter of the first sliding slot 21, so that the elastic reset mechanism 5 can be placed in the first sliding slot 21.
The knuckle arm 3 is further provided with a through hole 33 communicating with the second runner 31, and the inner diameter of the through hole 33 is smaller than that of the second runner 31. A plurality of the insertion holes 32 are arranged along the outer circumference of the through hole 33.
The steering knuckle further comprises a connecting assembly, and the locking mechanism 4 and the elastic resetting mechanism 5 are both sleeved on the connecting assembly.
The connecting assembly is sequentially inserted into the positioning hole 22, the first sliding groove 21, the second sliding groove 31 and the through hole 33. One end of the connecting component penetrates through the positioning hole 22, the outer diameter of the end part is larger than the inner diameter of the positioning hole 22, the other end of the connecting component penetrates through the through hole 33, and the outer diameter of the other end is larger than the inner diameter of the through hole 33. The connecting assembly is used for not obstructing the relative rotation between the connecting end 2 and the knuckle arm 3 and for restricting the separation of the connecting end 2 and the knuckle arm 3.
In this embodiment, the connecting assembly includes a fixing bolt 7 and an adjusting nut 8.
The fixing bolt 7 includes a bolt head 71 and a screw rod which are integrally formed, the outer diameter of the bolt head 71 is larger than the inner diameter of the through hole 33, and the screw rod is provided with an external thread.
As shown in fig. 12, the adjusting nut 8 includes a boss 81 and a threaded section 82, the threaded section 82 is provided with an internal thread matching the external thread and is in threaded connection with the fixing bolt 7, and the outer diameter of the boss 81 is larger than the inner diameter of the positioning hole 22.
Optionally, the connecting end 2 further defines a receiving groove communicating with the positioning hole 22, an inner diameter of the receiving groove is greater than or equal to an outer diameter of the boss 81, that is, the inner diameter of the receiving groove is greater than the inner diameter of the positioning hole, so that the boss 81 of the adjusting nut 8 can be partially located in the receiving groove.
Further, the bolt head 71 is disposed at a portion of the push plate 62 located between the press ring 61 and the fixture block 63, and an outer diameter of the bolt head 71 is larger than an inner diameter of a ring where the plurality of fixture blocks 63 are located and smaller than an inner diameter of the press ring 61, so that the bolt head 71 can ensure that the unlocking mechanism 6 cannot be loosened and slipped off from the knuckle arm 3.
Preferably, the bolt head 71 and the boss 81 are both provided with a hexagonal wrench socket 9 on opposite outer sides thereof, so that a hexagonal wrench can be inserted into the hexagonal wrench socket 9, and the fixing bolt 7 or the adjusting nut 8 can be rotated by the hexagonal wrench.
In another embodiment, the end surface of the threaded section 82 is provided with the same number of the tenons 83 as the number of the insertion holes 32, and each tenon 83 is inserted into one insertion hole 32. By arranging the catch 83 correspondingly in the insertion hole 32, it is ensured that the knuckle arm 3 and the adjusting nut 8 rotate simultaneously. Therefore, when the knuckle arm 3 is in a rotationally adjustable state, the knuckle arm 3 can be rotated by rotating the adjusting nut 8.
Further, the outer diameter of the ring where the plurality of tenons 83 are located is smaller than the inner diameter of the ring where the plurality of push plates 62 are located, so that when the push plates 62 partially enter the second sliding grooves 31 under the action of external force, interference of the tenons 83 on movement of the push plates 62 is avoided. Meanwhile, the clamping block 63 can be limited through the clamping tenon 83, and the motion limit of the unlocking mechanism 6 is realized.
Optionally, an avoiding groove 34 communicated with the insertion hole 32 is formed in one side of the knuckle arm 3 away from the second sliding groove 31, a circle of convex ring is formed between the avoiding groove 34 and the through hole 33, and grooves communicated with the insertion holes 32 in a one-to-one correspondence manner are formed in the outer wall of the convex ring. The inner diameter of the escape groove 34 is larger than the outer diameter of the pressing ring 61, and interference with the movement of the unlocking mechanism 6 can be avoided by the escape groove 34.
The assembly process of the steering knuckle of the embodiment of the application is as follows:
first, the adjusting nut 8 is inserted into the positioning hole 22 from below the connecting end 2, and the elastic return mechanism 5 and the locking mechanism 4 are sequentially placed into the first chute 21 from above the connecting end 2, and at this time, the upper end surface of the locking mechanism 4 is higher than the upper end surface of the connecting end 2 by the elastic return mechanism 5.
Then, the knuckle arm 3 is mounted above the link end 2 and the upper end of the locking mechanism 4 is secured in the second slide groove 31.
Finally, the unlocking mechanism 6 is inserted into the slot 32 from the upper part of the knuckle arm 3, the fixing bolt 7 is inserted into the through hole 33 of the knuckle arm 3 through the unlocking mechanism 6, the external thread section of the fixing bolt 7 is screwed into the adjusting nut 8, the bolt head 71 of the fixing bolt 7 is ensured to abut against the convex ring at the outer edge of the through hole 33, and the assembly of the knuckle is completed.
The knuckle of the embodiment of the application has the advantages of simple structure and strong adaptability, can adjust Ackermann steering geometry under the condition of not disassembling parts, and has obvious improvement effect on poor vehicle steering correction, overlarge minimum turning radius and the like.
The embodiment of the application also provides an adjusting method of the steering knuckle for the racing car, which comprises an adjusting step and locking.
The adjusting step includes:
first, applying an acting force to the unlocking mechanism 6 to cause the unlocking mechanism 6 to enter at least a part of the second slide groove 31, completely pushing the locking mechanism 4 into the first slide groove 21, and adjusting the knuckle arm 3 to a rotationally adjustable state;
then, the knuckle arm 3 is rotated to adjust the included angle between the knuckle arm and the knuckle body 1 to a required angle.
The above-mentioned locking includes:
when the biasing force applied to the unlocking mechanism 6 is removed, the elastic return mechanism 5 pushes the locking mechanism 4 so that the locking mechanism is partially positioned in the first slide groove 21 and partially positioned in the second slide groove 31, thereby locking the knuckle arm 3.
As shown in fig. 13, after the knuckle of the present embodiment is loaded, the locking mechanism 4 is partially located in the first sliding groove 21 and partially located in the second sliding groove 31, so that the knuckle arm 3 is always locked without external force to limit the relative rotation between the connecting end 2 and the knuckle arm 3.
As shown in fig. 14, after the tie rod outer ball pin end connected to the knuckle arm 3 is released, the lock release mechanism 6 is pressed so that the extended portion thereof enters at least a part of the second slide groove 31, and the lock mechanism 4 is pushed completely into the first slide groove 21 to be unlocked. At this time, the knuckle arm 3 is in a rotationally adjustable state.
The adjustment nut 8 is rotated by using a hexagonal wrench, the knuckle arm 3 is driven to rotate by the tenon 83, the installation angle of the knuckle arm 3 can be adjusted, and the relative position of the center of the outer ball pin of the tie rod and the axis of the kingpin in the same horizontal plane is changed.
After the adjustment is finished, the external force on the unlocking mechanism 6 is cancelled, the unlocking mechanism 6 and the locking mechanism 4 return to the initial positions under the elastic force of the elastic resetting mechanism 5, and at the moment, the knuckle arm 3 restores to the locking state. The steering knuckle arm 3 is provided with an outer ball pin end of a rotary transverse pull rod, and the adjustment work is finished.
As shown in fig. 15, in the steering knuckle, in two locking states before and after adjustment, the relative position of the center of the outer ball pin of the tie rod and the axis of the kingpin a in the same horizontal plane changes, moving from B to B ', so that the length between AB in state 1 changes to the length between AB' in state 2, and ackermann steering geometry of the racing car changes.
According to the adjusting method, after the vehicle enters the maintenance area, the mounting angle of the knuckle arm 3 can be quickly adjusted according to different types of tracks and different weather, so that the steering geometric characteristics of the vehicle can be quickly changed, and the tire wear is reduced.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A knuckle for a racing car, comprising:
the steering knuckle comprises a steering knuckle body (1), wherein one side of the steering knuckle body is provided with a connecting end (2), and the connecting end (2) is provided with a first sliding chute (21);
the steering knuckle arm (3) is movably connected to the connecting end (2) and is provided with a second sliding groove (31) opposite to the first sliding groove (21);
a locking mechanism (4) slidably assembled in the first sliding groove (21) and the second sliding groove (31), the locking mechanism (4) being configured to limit relative rotation of the connecting end (2) and the knuckle arm (3) when the locking mechanism is partially located in the first sliding groove (21) and partially located in the second sliding groove (31) so as to place the knuckle arm (3) in a locked state;
an unlocking mechanism (6) which is configured to be at least partially movable into the second link (31) under the action of an external force and to push the locking mechanism (4) completely into the first link (21) in order to bring the steering knuckle arm (3) into a rotationally adjustable state;
an elastic return mechanism (5) configured to push the locking mechanism (4) to keep the knuckle arm (3) in a locked state when the external force of the unlocking mechanism (6) is removed.
2. A knuckle for a racing car according to claim 1, wherein:
the height of the locking mechanism (4) along the axial direction of the first sliding chute (21) is smaller than the depth of the first sliding chute (21) and larger than the depth of the second sliding chute (31).
3. A knuckle for a racing car according to claim 1, wherein:
the locking mechanism (4) is of a cylindrical external spline structure, and the inner walls of the first sliding chute (21) and the second sliding chute (31) are both of internal spline structures matched with the external spline structures.
4. A knuckle for a racing car according to claim 1, wherein: the knuckle arm (3) is also provided with a plurality of jacks (32) communicated with the second sliding grooves (31);
the unlocking mechanism (6) comprises a pressing part and an extending part extending from the pressing part, and the extending part is slidably inserted into the insertion hole (32).
5. A knuckle for a racing car according to claim 4, wherein:
the pressing part is an annular pressing ring (61);
the extension includes a plurality of push plates (62), and is a plurality of push plate (62) are followed one side circumference of clamping ring (61) arranges, push plate (62) quantity with jack (32) quantity is the same, every push plate (62) orientation one side of clamping ring (61) axis all is equipped with one fixture block (63), fixture block (63) are followed the width of clamping ring (61) circumference is less than the width of push plate (62).
6. Steering knuckle for a racing car according to claim 5,
the connecting end (2) is further provided with a positioning hole (22) communicated with the first sliding groove (21), the knuckle arm (3) is further provided with a through hole (33) communicated with the second sliding groove (31), and the plurality of insertion holes (32) are arranged along the outer ring of the through hole (33);
the knuckle still includes a coupling assembling, locking mechanical system (4) and elasticity canceling release mechanical system (5) are all overlapped and are located coupling assembling, locating hole (22) are worn out to coupling assembling one end, and its other end is worn out through-hole (33), coupling assembling is used for not hindering link (2) with relative rotation and restriction between knuckle arm (3) link (2) with the separation of knuckle arm (3).
7. The knuckle for a racing car of claim 6, wherein the connection assembly comprises:
the fixing bolt (7) is provided with external threads, a bolt head (71) of the fixing bolt (7) is arranged at the part, located between the pressing ring (61) and the clamping blocks (63), of the push plate (62), and the outer diameter of the bolt head (71) is larger than the inner diameter of a circular ring where the clamping blocks (63) are located and smaller than the inner diameter of the pressing ring (61);
adjusting nut (8), it includes integrated into one piece's boss (81) and screw thread section (82), screw thread section (82) be equipped with the internal thread of external screw thread looks adaptation, and with fixing bolt (7) threaded connection, the external diameter of boss (81) is greater than the internal diameter of locating hole (22).
8. A knuckle for a racing car according to claim 7, wherein:
the end face of the threaded section (82) is provided with clamping tenons (83) with the same number as the insertion holes (32), each clamping tenon (83) is inserted into one insertion hole (32), and the outer diameter of a ring where the clamping tenons (83) are located is smaller than the inner diameter of a ring where the push plates (62) are located.
9. A knuckle for a racing car according to claim 6, wherein:
one side of the knuckle arm (3) far away from the second sliding groove (31) is provided with a dodging groove (34) communicated with the insertion hole (32), a circle of convex ring is formed between the dodging groove (34) and the through hole (33), and the outer wall of the convex ring is provided with a groove communicated with the insertion hole (32) in a one-to-one correspondence mode.
10. Method for adjusting a steering knuckle for racing vehicles according to any one of claims 1 to 9, characterized in that it comprises an adjustment step and a locking;
the adjusting step includes:
applying an acting force to an unlocking mechanism (6), so that the unlocking mechanism (6) at least partially enters the second sliding groove (31), the locking mechanism (4) is completely pushed into the first sliding groove (21), and the knuckle arm (3) is adjusted to a rotation-adjustable state;
rotating the knuckle arm (3) to adjust an included angle between the knuckle arm and the knuckle body (1);
the locking includes:
and the acting force on the unlocking mechanism (6) is removed, and the elastic resetting mechanism (5) pushes the locking mechanism (4) to be partially positioned in the first sliding groove (21) and partially positioned in the second sliding groove (31) so as to lock the knuckle arm (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010177393.9A CN111332363B (en) | 2020-03-13 | 2020-03-13 | Steering knuckle for racing car and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010177393.9A CN111332363B (en) | 2020-03-13 | 2020-03-13 | Steering knuckle for racing car and adjusting method thereof |
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| Publication Number | Publication Date |
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| CN111332363A CN111332363A (en) | 2020-06-26 |
| CN111332363B true CN111332363B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010177393.9A Active CN111332363B (en) | 2020-03-13 | 2020-03-13 | Steering knuckle for racing car and adjusting method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100004076A1 (en) * | 2021-02-23 | 2022-08-23 | Skf Ab | INTEGRATED VEHICLE STEERING SUSPENSION MODULE |
| CN113288430B (en) * | 2021-05-13 | 2022-07-29 | 上海微创医疗机器人（集团）股份有限公司 | Sterile plate assembly, surgical instrument, power box and surgical robot system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100052799A (en) * | 2008-11-11 | 2010-05-20 | 현대위아 주식회사 | Assembly for knuckle and tie-rod for vehicle |
| KR20100089591A (en) * | 2009-02-04 | 2010-08-12 | 현대자동차주식회사 | Tid rod assembly for vehicle |
| KR20130044729A (en) * | 2011-10-24 | 2013-05-03 | 현대모비스 주식회사 | Apparatus for controlling vehicle pull |
| KR20140087925A (en) * | 2012-12-31 | 2014-07-09 | 주식회사 만도 | Steering apparatus |
| CN107757706A (en) * | 2016-08-23 | 2018-03-06 | 上海汽车集团股份有限公司 | Slewing journal structure, steering and automobile |
| CN108248683A (en) * | 2016-12-28 | 2018-07-06 | 宝沃汽车（中国）有限公司 | knuckle and vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011073512A (en) * | 2009-09-29 | 2011-04-14 | Daihatsu Motor Co Ltd | Steering knuckle |
| TR201509688A2 (en) * | 2015-08-05 | 2017-02-21 | Ergin Yueksel | A joint system. |
| US20170217493A1 (en) * | 2016-02-01 | 2017-08-03 | Dana Automotive Systems Group, Llc | Adjustable camber and caster bushing |
-
2020
- 2020-03-13 CN CN202010177393.9A patent/CN111332363B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100052799A (en) * | 2008-11-11 | 2010-05-20 | 현대위아 주식회사 | Assembly for knuckle and tie-rod for vehicle |
| KR20100089591A (en) * | 2009-02-04 | 2010-08-12 | 현대자동차주식회사 | Tid rod assembly for vehicle |
| KR20130044729A (en) * | 2011-10-24 | 2013-05-03 | 현대모비스 주식회사 | Apparatus for controlling vehicle pull |
| KR20140087925A (en) * | 2012-12-31 | 2014-07-09 | 주식회사 만도 | Steering apparatus |
| CN107757706A (en) * | 2016-08-23 | 2018-03-06 | 上海汽车集团股份有限公司 | Slewing journal structure, steering and automobile |
| CN108248683A (en) * | 2016-12-28 | 2018-07-06 | 宝沃汽车（中国）有限公司 | knuckle and vehicle |
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| Publication number | Publication date |
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| CN111332363A (en) | 2020-06-26 |
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