CN214727928U - Front axle with high steering limit reliability - Google Patents

Abstract

The utility model discloses a turn to front axle of spacing high reliability, this kind of front axle that turns to spacing high reliability include front axle, king pin, footstep bearing, knuckle, turn to stopper and adjustment gasket, and front axle and king pin pass through wedge lockpin locking fixed, and the king pin passes through the footstep bearing cartridge on the knuckle, and the cover has the steering stopper on the king pin, the steering stopper upper end is provided with a word boss, be equipped with on the knuckle with a word boss complex cross recess, turn to stopper lower extreme symmetry and be provided with down the stopper, on two down the stopper altogether the cover have with the unanimous adjustment gasket of outward appearance, be equipped with the spacing groove on the front axle, down the stopper be located the spacing inslot and at the spacing rotation of spacing inslot. In this way, the utility model discloses compact structure, design benefit, bearing load is bigger, avoids connecting the obscission, can fully lubricate, reduces the rotation wearing and tearing, and the homodisperse atress has guaranteed that whole axle is spacing reliable and stable turning to of full life cycle.

Description

Front axle with high steering limit reliability

Technical Field

The utility model relates to an automobile parts technical field especially relates to a turn to front axle of spacing high reliability.

Background

The maximum steering angle of the front wheel of the automobile is the deflection angle of the front wheel when the front wheel turns to the left or right to the limit position, the automobile is ensured to have a small enough minimum turning radius, a traditional front axle is shown in figure 1, wherein a steering knuckle 01, a steering bolt 02, a steering nut 03, a front shaft 04, a thrust bearing 05, an adjusting shim 06 and a main pin 07 are arranged, and the top view of the mounting surfaces of the front shaft and the main pin is shown in figure 2. The traditional front axle steering limitation is that a limit threaded hole is formed in a steering knuckle, a limit lug is arranged at the fist position of a front axle, the limit bolt is continuously close to the limit lug of the front axle in the steering process of an axle until the contact distance between the limit lug and the front axle is 0, so that the maximum limit is reached, and the vehicle can not continue to enlarge a steering angle. Although the limiting problem is solved in the mode, the threaded hole is formed near the stress point of the steering knuckle for installing the steering limiting bolt and the steering limiting nut, the strength of the steering knuckle is weakened, the bearing load is reduced, the distance between the mutually meshed part of the limiting bolt and the threaded hole of the steering knuckle is too short and too small, the limiting nut tightening torque is limited due to the limitation of the installation structure, two adverse factors are influenced and superposed, the limiting bolt and the front shaft lug continuously impact to cause the limiting points with different limiting angles to be seriously worn when the vehicle is in a running turning process, the limiting holes slide teeth, the generated force enables the limiting bolt and the nut to loosen and fall off, the axle cannot limit the maximum turning angle, the body or the parts around collide and interfere with each other to be damaged, the wheel turning has no limit, the driving safety is influenced, the vehicle is easy to lose control to cause traffic accident risks, and the limiting lugs are symmetrically arranged at the fist position of the front shaft, not only the complexity of the mould is increased, but also the mould at the position of the lug is solidified and can not be changed, so that the situation that a steering limit bolt and a front axle lug are in the same position height when other steering sections are matched is considered, otherwise, the limit function cannot be realized, when the requirement of a host factory is similar to that of a front axle on the same platform (only the wheel end is changed), the steering section and the front axle can not be directly matched, and the universality is poor.

The adjusting shim does not prevent changeing the design between knuckle and the front axle, the king-pin middle part does not have the oil groove of leading, the front axle hole does not have the space and stores lubricating grease, old structure adjusting shim can cause early wear with changeing, and the king-pin has lubricating nipple with the lower extreme cooperation design of knuckle, nevertheless lubricated effect is limited can not contain whole lower extreme and leans on the side part, the vehicle is through turning to for a long time, the knuckle and the bush that the lower extreme upside is close to footstep bearing part are because of serious oil shortage wearing and tearing or even ablation, anomalous clearance increase phenomenon appears, turn to become loose spaciously, make king-pin caster, camber angle and interior inclination variation range increase. The automobile can irregularly shake on two sides when running, the direction is not easy to control and easy to deviate, the automatic alignment of the front wheel of the axle is influenced, the steering becomes heavy, and the abrasion of tires is accelerated; the head of the steering limit bolt is designed to be in an arc shape, is in point contact with the front shaft limit bump, is easy to deform under stress, and the bolt is a special non-national standard part, needs to be customized by a manufacturer and is difficult to buy in the market after being damaged, so that the original structure of the bolt needs to be improved and optimized to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a turn to spacing high reliability's front axle, compact structure, design benefit turns to spacing groove cooperation realization on stopper and the front axle and turns to spacingly, and the bearing load is bigger, avoids connecting the obscission, can fully lubricate, reduces the rotational wear, and the homodisperse atress has guaranteed that whole axle is at full life cycle's spacing reliable and stable that turns to.

In order to solve the technical problem, the utility model discloses a technical scheme be: provides a front axle with high reliability of steering limit, which comprises a front axle, a main pin, a thrust bearing, a steering knuckle, a steering limiter and an adjusting shim, the front axle is used as a base body, a main pin is inserted on the front axle, the front axle and the main pin are locked and fixed through a wedge-shaped lock pin, the main pin is inserted on a steering knuckle through a thrust bearing, a steering limiter is sleeved on the main pin between the front axle and the steering knuckle, the steering limiter is provided with a main pin through hole, the upper end of the steering limiter is provided with a straight boss, the steering knuckle is provided with a cross groove matched with the straight boss, the steering knuckle rotates to drive the steering limiter to rotate, the lower end of the steering limiter is symmetrically provided with lower limiting blocks, two lower limiting blocks are sleeved with adjusting gaskets with the same shape as the outer shape of the steering limiter, the front shaft is provided with a limiting groove, and the lower limiting block is positioned in the limiting groove and rotates in the limiting groove in a limiting mode.

Preferably, the maximum outer wheel of the lower limiting block in the limiting groove turns to 36 degrees, and the maximum inner wheel of the lower limiting block in the limiting groove turns to 45 degrees.

Preferably, a turn to spacing front axle of high reliability still includes oil blanket blanking cover, blanking cover bolt and grease mouth, both ends symmetry is provided with the oil storage chamber about the swizzle, and the oil storage chamber communicates with each other with the swizzle lateral surface, and the oil blanket blanking cover is installed at oil storage chamber top, installs the blanking cover bolt on the oil blanket blanking cover, installs the grease mouth on the blanking cover bolt, forms and seals, the swizzle lateral surface has been seted up and has been led the oil groove, leads the oil groove and communicates with each other with the spacing groove, and the spacing groove is regarded as the oil storage space this moment.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the threaded hole, the limiting bolt and the nut of the key stressed part of the steering knuckle are eliminated, the weak stress is eliminated, the strength of the steering knuckle is improved, and the bearing load is larger;

2. the limit lugs on two sides of the front shaft are eliminated, the steering limiter is additionally arranged at the matching position of the steering knuckle and the front shaft, the limit system is arranged in the inner part, the falling-off condition of limit bolts and nuts in the driving process is solved, the anti-rotation design is carried out by the adjusting gasket, the upper end of the matching position of the front shaft is provided with an oil storage space, and the master pin is provided with an oil guide groove, so that the master pin is fully lubricated with the matching surfaces of the lower ends of the front shaft, the steering limiter, the thrust bearing and the steering knuckle, the rotational wear is reduced, the back inclination angle, the camber angle and the dip angle of the master pin are kept stable, the problems of irregular two-side shaking, poor direction control, front wheel alignment, heavy steering, tire wear and the like in the driving process of an automobile are solved, the service life of the axle is prolonged, the corresponding position space of the limit lugs on two sides of the front shaft is eliminated, and the wedge-shaped lock pin holes can be arranged as required in the vertical direction range according to the design requirements, the universality of the steering knuckle and the front axle is stronger;

3. the steering limiting system is changed from the prior unilateral point contact into the prior bilateral surface contact, so that the stress concentration is greatly reduced, the stress is uniformly dispersed, and the steering limiting stability and reliability of the whole axle in the whole life cycle are ensured.

Drawings

Fig. 1 is a schematic view of a conventional front axle structure.

Fig. 2 is a top view of a front axle and kingpin mounting surface of a conventional front axle.

Fig. 3 is a schematic structural diagram of a steering limiting high-reliability front axle.

Fig. 4 is a partial enlarged view of a steering stopper with high reliability.

Fig. 5 is a top view of a steering limiter with high reliability.

Fig. 6 is a cross-sectional view a-a of fig. 5.

FIG. 7 is a top view of the front axle and kingpin mounting surface of a steering limiter high reliability front axle.

Fig. 8 is a schematic view of a steering limiter of a front axle with high reliability.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.

Referring to fig. 1 to 8, an embodiment of the present invention includes:

a front axle with high reliability of steering limit comprises a front axle 1, a main pin 2, a thrust bearing 3, a steering knuckle 4, a steering limiter 5 and an adjusting gasket 6, wherein the front axle 1 is a base body, the main pin 2 is inserted on the front axle 1, the front axle 1 and the main pin 2 are locked and fixed through a wedge-shaped lock pin, the main pin 2 is inserted on the steering knuckle 4 through the thrust bearing 3, the main pin 2 between the front axle 1 and the steering knuckle is sleeved with the steering limiter 5, the steering limiter 5 is provided with a main pin penetrating hole 50, the upper end of the steering limiter 5 is provided with a straight boss 51, the steering knuckle 4 is provided with a cross groove 40 matched with the straight boss 51, the steering knuckle 4 rotates to drive the steering limiter 5 to rotate, the lower end of the steering limiter 5 is symmetrically provided with lower limiting blocks 52, the two lower limiting blocks 52 are sleeved with the adjusting gasket 6 with the same shape as the outer shape, the front axle 1 is provided with a limiting groove 10, and the lower limiting block 52 is positioned in the limiting groove 10 and rotates in the limiting groove 10 in a limiting way.

The maximum outer wheel of the lower limiting block 52 in the limiting groove 10 turns to 36 degrees, and the maximum inner wheel of the lower limiting block 52 in the limiting groove 10 turns to 45 degrees.

The utility model provides a turn to spacing high reliability's front axle still includes oil blanket blanking cover 7, blanking cover bolt 8 and grease mouth 9, 2 upper and lower both ends symmetries of king pin are provided with oil storage chamber 20, and oil storage chamber 20 communicates with each other with 2 lateral surfaces of king pin, and oil blanket blanking cover 7 is installed at oil storage chamber 20 top, installs blanking cover bolt 8 on the oil blanket blanking cover 7, installs grease mouth 9 on the blanking cover bolt 8, forms and seals, 2 lateral surfaces of king pin have been seted up and have been led oil groove 21, lead oil groove 21 and spacing groove 10 and communicate with each other, and spacing groove 10 is regarded as the oil storage space this moment.

The utility model relates to a turn to spacing high reliability's front axle during operation, 4 rotations of knuckle drive turn to stopper 5 and rotate, turn to stopper 5 pivoted lower stopper 52 and turn to 36 at the biggest foreign steamer of spacing inslot 10, lower stopper 52 turns to 45 at the biggest interior wheel of spacing inslot 10, pour into oil storage chamber 20 into lubricating oil from grease mouth 9, lubricating oil flows to 2 lateral surfaces of king pin that are located front axle 1 and knuckle 4 in the oil storage chamber 20, lubricating oil flows to spacing groove 10 along 2 lateral surfaces of king pin and lead oil groove 21, spacing groove 10 is as the oil storage space this moment, lubricated whole cooperation part system that turns to.

The utility model relates to a turn to spacing front axle of high reliability, compact structure, design benefit turns to spacing on stopper and the front axle spacing groove cooperation realization and turns to spacingly, and the bearing load is bigger, avoids connecting the obscission, can fully lubricate, reduces the rotational wear, and the homodisperse atress has guaranteed that whole axle is spacing reliable and stable turning to of full life cycle.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (3)

1. The utility model provides a turn to spacing front axle of high reliability which characterized in that: the front axle with the steering limiting high reliability comprises a front axle, a main pin, a thrust bearing, a steering knuckle, a steering limiter and adjusting gaskets, wherein the front axle is a base body, the main pin is inserted on the front axle, the front axle and the main pin are locked and fixed through a wedge-shaped lock pin, the main pin is inserted on the steering knuckle through the thrust bearing, the steering limiter is sleeved on the main pin between the front axle and the steering knuckle, a main pin penetrating hole is formed in the steering limiter, a straight boss is arranged at the upper end of the steering limiter, a cross groove matched with the straight boss is formed in the steering knuckle, lower limiting blocks are symmetrically arranged at the lower end of the steering limiter, the adjusting gaskets are sleeved on the two lower limiting blocks, the adjusting gaskets are consistent with the outer shape of the steering limiter, a limiting groove is formed in the front axle, and the lower limiting blocks are located in the limiting groove and rotate in the limiting groove in a limiting mode.

2. The front axle with high reliability of the steering limit as claimed in claim 1, wherein: the maximum outer wheel of the lower limiting block in the limiting groove turns to 36 degrees, and the maximum inner wheel of the lower limiting block in the limiting groove turns to 45 degrees.

3. The front axle with high reliability of the steering limit as claimed in claim 1, wherein: still include oil blanket blanking cover, blanking cover bolt and grease mouth, both ends symmetry is provided with the oil storage chamber about the swizzle, and the oil storage chamber communicates with each other with the swizzle lateral surface, and the oil blanket blanking cover is installed at oil storage chamber top, installs the blanking cover bolt on the oil blanket blanking cover, installs the grease mouth on the blanking cover bolt, forms and seals, the swizzle lateral surface has been seted up and has been led the oil groove, leads the oil groove and communicates with each other with the spacing groove, and the spacing groove is regarded as the oil storage space this moment.

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