CN214493076U

CN214493076U - Automobile steering knuckle

Info

Publication number: CN214493076U
Application number: CN202120707312.1U
Authority: CN
Inventors: 林敏红
Original assignee: Wenling Oudi Machinery Co ltd
Current assignee: Wenling Oudi Machinery Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-10-26
Anticipated expiration: 2031-04-07

Abstract

The utility model provides a steering knuckle belongs to automobile parts technical field. The automobile steering knuckle solves the problems that the lubricating effect between a transmission shaft and two shaft holes in the existing automobile steering knuckle is poor, and the steering effect of wheels is influenced. This automobile steering knuckle, including the knuckle body and the rotation spindle nose that links to each other with the wheel, last portion of rotating and lower portion of rotating have on the body turns to, go up and be provided with the transmission shaft between portion of rotating and the lower portion of rotating, go up the portion of rotating and have seted up shaft hole and lower shaft hole respectively with lower portion of rotating, the upper end of transmission shaft stretches into in the upper shaft hole and cooperatees rather than, the lower extreme stretches into in the lower shaft hole and cooperatees rather than, the lubricated mechanism who comprises last stop cap, lower stop cap and lubricated cover has all been installed in upper shaft hole and the lower shaft hole. The utility model has the advantages of realize preventing the wearing and tearing on transmission shaft surface to the lubrication of transmission shaft, improve the wheel steering effect.

Description

Automobile steering knuckle

Technical Field

The utility model belongs to the technical field of automobile parts, a steering knuckle is related to.

Background

The steering knuckle is used for transmitting and bearing the front load of the automobile, supporting and driving the front wheel to rotate around the main pin so as to steer the automobile. In the driving state of the vehicle, it is subjected to a variable impact load, and therefore, it is required to have a high strength.

Knuckle on the existing market includes the body, rotation spindle nose and two rotation portions, the wheel is connected to the rotation spindle nose, knuckle arm and trapezoidal arm are connected respectively to two rotation portions, the shaft hole has still all been seted up in two rotation portions simultaneously, two shaft holes are corresponding, wear to establish a transmission shaft in two shaft holes, be equipped with in the vehicle left and right knuckle and be used for connecting left wheel and right wheel respectively, so the cooperation is connected the car front axle between two transmission shafts, cooperation connection tie rod between two trapezoidal arms, in operation, the system drives the knuckle arm through the vehicle and deflects, thereby the left knuckle of controlling again deflects, the left knuckle drives the wheel and turns to, and simultaneously, under the effect that the left knuckle deflected, trapezoidal arm deflects, drive the right knuckle through trapezoidal arm and deflect, realize the turning of right wheel.

In the above process, the knuckle is controlled by the vehicle steering system and deflects around the drive shaft, thereby achieving the steering function of the wheel. The lubricating effect between the transmission shaft and the two shaft holes in the existing steering knuckle is poor, and under long-time work, the contact surface of the transmission shaft is easy to wear, so that the steering effect of wheels is influenced.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a lubricated effectual, reduce the automobile steering knuckle of transmission shaft surface wear.

The purpose of the utility model can be realized by the following technical proposal: an automobile steering knuckle comprises a steering knuckle body and a rotating shaft head connected with wheels, wherein the steering body is provided with an upper rotating part and a lower rotating part, a transmission shaft is arranged between the upper rotating part and the lower rotating part, the upper rotating part and the lower rotating part are respectively provided with an upper shaft hole and a lower shaft hole, the upper end of the transmission shaft extends into the upper shaft hole and is matched with the upper shaft hole, the lower end of the transmission shaft extends into the lower shaft hole and is matched with the lower shaft hole, the automobile steering knuckle is characterized in that the upper shaft hole and the lower shaft hole are respectively provided with a lubricating mechanism consisting of an upper limiting cap, a lower limiting cap and a lubricating sleeve, the upper end and the lower end of the transmission shaft are respectively matched and connected with the upper shaft hole and the lower shaft hole through the lubricating mechanism, the peripheral wall of the lubricating sleeve is provided with an oil filling hole, and the upper annular oil duct and the lower annular oil duct are respectively arranged above and below the oil filling hole, the upper ring-shaped oil duct and the oil filler point are communicated through an upper longitudinal oil duct, the lower ring-shaped oil duct and the oil filler point are communicated through a lower longitudinal oil duct, the upper limiting cap and the lower limiting cap are respectively compressed on the upper end portion and the lower end portion of the lubricating sleeve to limit the lubricating sleeve, the upper limiting cap and the lower limiting cap in the upper rotating portion are connected with the upper rotating portion through fixing bolts, and the upper limiting cap and the lower limiting cap in the lower rotating portion are connected with the lower rotating portion through fixing bolts.

In the above-mentioned automobile steering knuckle, the lubricating sleeve is composed of a front lubricating sleeve and a rear lubricating sleeve, and the front lubricating sleeve and the rear lubricating sleeve are welded together.

In foretell knuckle, all overlap on the inner wall of last spacing cap and lower spacing cap and be equipped with the sealing member that is used for preventing lubricating oil from leaking, the hoop fluting has been seted up to axial inwards on the inner wall of last spacing cap and lower spacing cap, the sealing member be located this annular fluting and the preceding tip stretch out outside the annular fluting, the hoop fluting in be located the sealing member top and be provided with pressure spring, be located the sealing member bottom and be provided with the locking and press the cap, the last position department that corresponds the locking and press the cap of hoop fluting has seted up the screw thread to press cap fixed connection through this screw thread and locking.

In the above-mentioned automobile steering knuckle, the sealing member is made of soft rubber.

In the above-mentioned automobile steering knuckle, the inner walls of the upper limit cap and the lower limit cap are both convexly provided with guide convex rings, and the upper end face and the lower end face of the lubricating sleeve are both provided with positioning grooves for the corresponding guide convex rings to extend into for positioning.

In the automobile steering knuckle, the inner wall of the oil injection hole is provided with an internal thread, and the inner wall of the oil injection hole is connected with the blocking cap through the internal thread.

In the above-mentioned automobile steering knuckle, the upper limit cap and the lower limit cap are provided with flange portions extending outwards.

Compared with the prior art, this automobile steering knuckle realizes the lubrication to the transmission shaft through lubricated mechanism, prevents the wearing and tearing on transmission shaft surface, has the advantage that improves the wheel steering effect, simultaneously, absorbs the friction heat that produces when the steering knuckle turns to through lubricating oil, plays the radiating effect to the main shaft.

Drawings

Fig. 1 is a schematic perspective view of the steering knuckle of the present automobile.

Fig. 2 is a schematic sectional structure view of the lubricating mechanism.

Fig. 3 is an enlarged view at a in fig. 2.

In the figure, 1, a knuckle body; 2. rotating the shaft head; 3. an upper rotating part; 4. a lower rotating part; 5. a drive shaft; 6. an upper limit cap; 7. a lower limit cap; 8. a lubricating sleeve; 9. an oil filler hole; 10. an upper annular oil passage; 11. a lower annular oil passage; 12. an upper longitudinal oil passage; 13. a lower longitudinal oil passage; 14. a seal member; 15. a compression spring; 16. locking the pressing cap; 17. a guide convex ring; 18. a plugging cap; 19. a flange portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the automobile steering knuckle comprises a steering knuckle body 1 and a rotating shaft head 2 connected with wheels, the steering knuckle body is provided with an upper rotating part 3 and a lower rotating part 4, a transmission shaft 5 is arranged between the upper rotating part 3 and the lower rotating part 4, the upper rotating part 3 and the lower rotating part 4 are respectively provided with an upper shaft hole and a lower shaft hole, the upper end of the transmission shaft 5 extends into the upper shaft hole and is matched with the upper shaft hole, the lower end of the transmission shaft extends into the lower shaft hole and is matched with the lower shaft hole, the upper shaft hole and the lower shaft hole are respectively provided with a lubricating mechanism consisting of an upper limiting cap 6, a lower limiting cap 7 and a lubricating sleeve 8, the upper end and the lower end of the transmission shaft 5 are respectively matched and connected with the upper shaft hole and the lower shaft hole through the lubricating mechanism, the peripheral wall of the lubricating sleeve 8 is provided with an oil filling hole 9, the upper annular oil passage 10 and the lower annular oil passage 11 are respectively arranged on the inner peripheral wall of the lubricating sleeve 8 and above and below the filling hole 9, go up and be linked together through last longitudinal oil duct 12 between annular oil duct 10 and the oil filler point 9, be linked together through lower longitudinal oil duct 13 between lower annular oil duct 11 and the oil filler point 9, go up spacing cap 6 and lower spacing cap 7 and compress tightly respectively in the upper and lower tip of lubricated cover 8 and play the spacing effect to lubricated cover 8, go up spacing cap 6 in the rotation portion 3 and lower spacing cap 7 and all be connected with last rotation portion 3 through fixing bolt, go up spacing cap 6 in the rotation portion 4 and lower spacing cap 7 and all be connected with lower rotation portion 4 through fixing bolt down.

In more detail, the lubricating sleeve 8 consists of a front lubricating sleeve 8 and a rear lubricating sleeve 8, the front lubricating sleeve 8 and the rear lubricating sleeve 8 are connected in a welding manner, the order of the lubricating sleeve 8 formed by welding is to facilitate the opening of an upper annular oil duct 10, a lower annular oil duct 11, an upper longitudinal oil duct 12 and a lower longitudinal oil duct 13, the upper annular oil duct 10, the lower annular oil duct 11, the upper longitudinal oil duct 12 and the lower longitudinal oil duct 13 which are arranged in the front lubricating sleeve 8 and the upper annular oil duct 10, the lower annular oil duct 11, the upper longitudinal oil duct 12 and the lower longitudinal oil duct 13 which are arranged in the rear lubricating sleeve 8 are all semi-annular, and the two semi-annular upper annular oil passages 10, the two semi-annular lower annular oil passages 11, the two semi-annular upper longitudinal oil passages 12 and the two semi-annular lower longitudinal oil passages 13 are combined to form the complete upper annular oil passage 10, the complete lower annular oil passage 11, the complete upper longitudinal oil passage 12 and the complete lower longitudinal oil passage 13 through welding.

In a detailed description, the inner walls of the upper limit cap 6 and the lower limit cap 7 are respectively sleeved with a sealing element 14 for preventing lubricating oil from leaking, when the automobile runs on a bumpy road section, the phenomenon that the lubricating oil leaks due to vibration is prevented through the two sealing elements 14, the inner end wall surfaces of the upper limit cap 6 and the lower limit cap 7 are axially and inwardly provided with annular grooves, the sealing elements 14 are located in the annular grooves, the front end portions of the sealing elements extend out of the annular grooves and are used for being tightly attached to the transmission shaft 5, the annular grooves are internally provided with compression springs 15 at the tops of the sealing elements 14, locking pressure caps 16 are arranged at the bottoms of the sealing elements 14, threads are arranged on the positions, corresponding to the locking pressure caps 16, of the annular grooves, the sealing elements 14 are fixedly connected with the locking pressure caps 16 through the threads, and the sealing elements 14 are made of soft rubber.

Place pressure spring 15, sealing member 14 and locking pressure cap 16 in the annular fluting around in proper order, press sealing member 14 on pressure spring 15 through the connection locking of locking pressure cap 16, because sealing member 14 is the flexible glue material, consequently can take place sealing member 14 and can produce flexible deformation to make preceding tip laminating transmission shaft 5 surfaces, reach sealed effect.

In a detailed description, the inner walls of the upper limiting cap 6 and the lower limiting cap 7 are respectively provided with a guide convex ring 17 in a protruding mode, the upper end face and the lower end face of the lubricating sleeve 8 are respectively provided with a positioning groove for enabling the corresponding guide convex ring 17 to stretch into the positioning groove, the guide convex ring 17 is more stable when being matched with the positioning groove for assembly, and axial movement of the lubricating sleeve 8 is prevented.

In a further elaboration, an internal thread is formed on the inner wall of the oil filling hole 9, a blocking cap 18 is connected with the internal thread, and the oil filling hole 9 is blocked by the blocking cap 18 to prevent lubricating oil from leaking.

In a further elaboration, go up all to have flange portion 19 of outside extension on spacing cap 6 and the lower spacing cap 7, seted up screw one on the flange portion 19, go up and have seted up corresponding screw two on rotation portion 3 and the lower rotation portion 4, go up in rotation portion 3 and go up the flange portion 19 of spacing cap 6 and lower spacing cap 7 and all be connected with last rotation portion 3 through fixing bolt, go up in the lower rotation portion 4 and all be connected with lower rotation portion 4 through fixing bolt with the flange portion 19 of lower spacing cap 7 spacing cap 6.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The automobile steering knuckle comprises a steering knuckle body (1) and a rotating shaft head (2) connected with wheels, wherein an upper rotating part (3) and a lower rotating part (4) are arranged on the steering knuckle body, a transmission shaft (5) is arranged between the upper rotating part (3) and the lower rotating part (4), an upper shaft hole and a lower shaft hole are respectively formed in the upper rotating part (3) and the lower rotating part (4), the upper end of the transmission shaft (5) extends into the upper shaft hole and is matched with the upper shaft hole, the lower end of the transmission shaft (5) extends into the lower shaft hole and is matched with the lower shaft hole, the automobile steering knuckle is characterized in that a lubricating mechanism consisting of an upper limiting cap (6), a lower limiting cap (7) and a lubricating sleeve (8) is respectively arranged in the upper shaft hole and the lower shaft hole through the lubricating mechanism, oil filling holes (9) are formed in the peripheral wall of the lubricating sleeve (8), the lubricating sleeve is characterized in that an upper annular oil duct (10) and a lower annular oil duct (11) are respectively arranged above and below an oil filling hole (9) on the inner peripheral wall of the lubricating sleeve (8), the upper annular oil duct (10) and the oil filling hole (9) are communicated through an upper longitudinal oil duct (12), the lower annular oil duct (11) and the oil filling hole (9) are communicated through a lower longitudinal oil duct (13), an upper limiting cap (6) and a lower limiting cap (7) are respectively pressed on the upper end part and the lower end part of the lubricating sleeve (8) to limit the lubricating sleeve (8), the upper limiting cap (6) and the lower limiting cap (7) in the upper rotating part (3) are respectively connected with the upper rotating part (3) through fixing bolts, and the upper limiting cap (6) and the lower limiting cap (7) in the lower rotating part (4) are respectively connected with the lower rotating part (4) through fixing bolts.

2. The steering knuckle according to claim 1, characterized in that said lubricating sleeve (8) consists of a front lubricating sleeve (8) and a rear lubricating sleeve (8), said front lubricating sleeve (8) and rear lubricating sleeve (8) being welded together.

3. The automobile steering knuckle according to claim 1, characterized in that the inner walls of the upper limit cap (6) and the lower limit cap (7) are sleeved with a sealing element (14) for preventing lubricating oil from leaking, the inner end wall surfaces of the upper limit cap (6) and the lower limit cap (7) are axially and inwardly provided with annular grooves, the sealing element (14) is located in the annular groove, the front end of the sealing element extends out of the annular groove, the annular groove is internally provided with a compression spring (15) at the top of the sealing element (14), the bottom of the sealing element (14) is provided with a locking press cap (16), the annular groove is provided with threads at a position corresponding to the locking press cap (16), and the annular groove is fixedly connected with the locking press cap (16) through the threads.

4. The knuckle according to claim 3, wherein said seal (14) is soft plastic.

5. The automobile steering knuckle according to claim 1, characterized in that the inner walls of the upper limit cap (6) and the lower limit cap (7) are respectively provided with a guide convex ring (17) in a protruding manner, and the upper end surface and the lower end surface of the lubricating sleeve (8) are respectively provided with a positioning groove for the corresponding guide convex ring (17) to extend into for positioning.

6. The knuckle according to claim 1, characterized in that the oil hole (9) is internally threaded and is connected with a plug cap (18) by means of the internal thread.

7. The steering knuckle according to claim 1, characterized in that said upper and lower stop caps (6, 7) each have an outwardly extending flange portion (19).