High-strength automobile steering knuckle
By installing a sealing ring, a sealing gasket, and a head gasket inside the oil inlet of the steering knuckle, combined with a limiting device, a three-layer sealing structure is formed, which solves the problem of lubricating oil leakage during bumpy conditions and improves the sealing performance and service life of the steering knuckle.
Patent Information
- Application Number
- CN202520474277.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing lubrication system of automotive steering knuckles has poor sealing performance during bumpy driving, which makes it easy for lubricating oil to leak. After long-term driving, the connection between the steering knuckle and the shaft will lack lubrication and cause damage.
A sealing ring, a sealing gasket, and a head gasket are installed inside the oil inlet of the steering knuckle. Combined with a limiting device, a three-layer sealing structure is formed, and oil leakage is prevented by a clamping rod and a limiting block.
It significantly improves the sealing performance of the lubricating oil, prevents oil leakage during bumpy rides, prolongs the lubrication effect at the connection between the steering knuckle and the shaft, and avoids damage caused by lack of lubrication.
Smart Images

Figure CN223725401U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile chassis, specifically is a high strength automobile steering knuckle. BACKGROUND
[0002] Steering knuckle is also called "goat horn", and is one of important parts in automobile steering axle, can make automobile steady travel and sensitively transmit travel direction, the function of steering knuckle is to transmit and bear the load of automobile front part, supports and drives front wheel to rotate around the main pin and makes automobile turn, under the automobile travel state, it bears changeable impact load, therefore, requires that it has very high strength;
[0003] The high strength automobile steering knuckle of prior art is provided with a lubricating system at the connecting place with automobile axle rod, such as the anti-fracture automobile steering knuckle of application number CN202223449630.6, including steering knuckle main part, automobile axle rod is rotatably connected in the steering knuckle main part, the liquid storage groove is set up in the steering knuckle main part, the oil inlet is set up in the steering knuckle main part, the oil inlet is communicated with the inside of liquid storage groove, the oil injection hole is set up in the liquid storage groove, the oil injection hole is communicated with the inside of steering knuckle main part, the installation groove is set up in the liquid storage groove, the plug-in rod is inserted in the installation groove, the plug-in rod is fixedly connected with the blocking piece on one end, the blocking piece is opposite to the oil injection hole on one side, the clasp spring is fixedly connected in the plug-in rod, the clasp spring is fixedly connected with the installation groove inner wall on one end;The blocking cover is rotatably connected in the oil inlet, the clamping groove is set up in the steering knuckle main part, the positioning spring is fixedly connected in the clamping groove, the positioning spring is fixedly connected with the clamping block on one end, the blocking cover is set up with the clamping block in the adapter;The above-mentioned common automobile steering knuckle still has the following deficiencies:
[0004] This device blocks the internal oil by rotating the blocking cover, and the sealing performance is poor, and the leakage of lubricating oil is easy to occur during the bumpy process of automobile driving, and it is not easy to find, and long-time driving still leads to lack of lubrication at the connecting place of steering knuckle and axle rod, resulting in damage of automobile steering knuckle. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of high strength automobile steering knuckle to solve the problems that the device is blocked by rotating the blocking cover in the above background technology, and the sealing performance is poor, and the leakage of lubricating oil is easy to occur during the bumpy process of automobile driving, and it is not easy to find, and long-time driving still leads to lack of lubrication at the connecting place of steering knuckle and axle rod, resulting in damage of automobile steering knuckle.
[0006] In order to achieve the above object, the utility model provides the following technical scheme: A high -strength automobile steering knuckle, including steering knuckle body and fixed installation in the axle rod of steering knuckle body, the one side fixed mounting of steering knuckle body has high -strength piece, the surface of steering knuckle body is equipped with fastening groove, the inside of fastening groove is equipped with oil inlet, the inside of oil inlet is provided with the sealing mechanism for oil seal, the inside of oil inlet is provided with oil port head, the both sides of fastening groove inner wall all are fixedly installed with compression device, one end of oil port head is provided with limit device.
[0007] Preferably, the high-strength piece includes a reinforcing ring, a weight-reducing groove is formed on the surface of the reinforcing ring, and a plurality of reinforcing ribs are fixedly connected in the weight-reducing groove, which is beneficial to enhance the use strength of the steering knuckle body.
[0008] Preferably, the sealing mechanism includes a sealing groove formed on the inner wall of the oil inlet, a sealing ring is arranged in the sealing groove, a connecting ring is fixedly connected to the middle portion of the inner wall of the oil inlet, and a sealing gasket is arranged on one side of the connecting ring, which is beneficial to greatly increase the sealing performance.
[0009] Preferably, the surface of the oil port head is provided with a head gasket, one side of the head gasket is in contact with the inner wall of the fastening groove, which is beneficial to strengthen the sealing.
[0010] Preferably, the compression device includes two locking rotary rods, and a compression rod is rotatably connected to one end of each of the two locking rotary rods.
[0011] Preferably, the compression rod includes a rotary sleeve, a rotary handle is fixedly connected to one side of the rotary sleeve, and a fastening pressing plate is fixedly connected to the other side of the rotary sleeve, and an inclined pressing block is fixedly connected to the bottom of the fastening pressing plate, which is beneficial to compress and limit the oil port head.
[0012] Preferably, the limiting device includes a limiting block, a lifting groove is formed on one side of the connecting portion of the limiting block and the oil port head, a return spring is arranged in the lifting groove, a lifting clamping block is slidably connected in the lifting groove, and one side of the lifting clamping block is fixedly connected to one end of the return spring, which is beneficial to prevent loosening and oil leakage when the automobile runs on a bumpy road section.
[0013] Compared with the prior art, the utility model has the advantages that: by additionally arranging a sealing ring on the inner wall of the oil inlet, arranging a connecting ring in the oil inlet, arranging a sealing gasket on the connecting ring, and arranging a head gasket on the oil port head, three layers of sealing can be formed after the oil port head is installed, and the risk of oil leakage is greatly reduced.
[0014] The inclined pressing block is pressed against the oil port sealing head by the rotation of the manually pulled pressing rod, the pressure makes the sealing gasket and sealing ring and the sealing head gasket form compensation, the sealing performance is greatly enhanced, the pressing rod is limited by the limiting device, the sealing performance is prevented from being reduced in the bumpy road section during the driving of the automobile, and the phenomenon of liquid leakage is prevented. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structure diagram of the automobile steering knuckle of the utility model;
[0016] Figure 2 It is a structure diagram of the high-strength part of the automobile steering knuckle of the utility model;
[0017] Figure 3 It is a partial enlarged view A of the structure diagram of the automobile steering knuckle of the utility model;
[0018] Figure 4 It is a structure diagram of the pressing device of the automobile steering knuckle of the utility model;
[0019] Figure 5 It is an explosion structure diagram of the sealing head limiting device of the automobile steering knuckle of the utility model;
[0020] Figure 6 It is an internal partial structure diagram of the oil inlet of the automobile steering knuckle of the utility model.
[0021] In the figure: 1, steering knuckle body; 2, shaft rod; 3, reinforcing ring; 4, reinforcing rib; 5, weight reduction groove; 6, oil inlet; 7, sealing groove; 8, sealing ring; 9, connecting ring; 10, sealing gasket; 11, fastening groove; 12, locking rotating rod; 13, pressing rod; 14, inclined pressing block; 15, oil port sealing head; 16, sealing head gasket; 17, limiting block; 18, lifting groove; 19, return spring; 20, lifting clamping block. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.
[0023] Please refer to Figures 1-6 The utility model provides a high -strength automobile steering knuckle, including steering knuckle body 1 and fixed installation in the inside axle of steering knuckle body 1 2, one side of steering knuckle body 1 is fixedly installed with high -strength part, the surface of steering knuckle body 1 is seted up fastening groove 11, the inside of fastening groove 11 is seted up oil inlet 6, the inside of oil inlet 6 is provided with sealing mechanism for oil seal, the inside of oil inlet 6 is provided with oil port sealing head 15, both sides of the inner wall of fastening groove 11 are fixedly installed with pressing device, one end of oil port sealing head 15 is provided with limiting device.
[0024] Please refer to Figure 2Further, the high-strength part comprises a reinforcing ring 3, and a weight-reducing groove 5 is arranged on the surface of the reinforcing ring 3, and a plurality of reinforcing ribs 4 are fixedly connected in the weight-reducing groove 5.
[0025] In use, the high-strength part is fixedly installed on the knuckle body 1, the tapered reinforcing ring 3 can effectively enhance the strength of the knuckle body 1, the weight-reducing groove 5 can effectively reduce the weight of the part, and the plurality of reinforcing ribs 4 arranged in the weight-reducing groove 5 can not only reduce the weight of the part but also greatly enhance the strength of the part.
[0026] Referring to Figure 4 and Figure 5 Further, the pressing device comprises two locking rotating rods 12, one end of each of the two locking rotating rods 12 is rotatably connected with a pressing rod 13, the pressing rod 13 comprises a rotating sleeve, one side of the rotating sleeve is fixedly connected with a rotating handle, the other side of the rotating sleeve is fixedly connected with a fastening pressing plate, the bottom of the fastening pressing plate is fixedly connected with an inclined pressing block 14, the limiting device comprises a limiting block 17, one side of the connecting position between the limiting block 17 and the oil port head 15 is provided with a lifting groove 18, a reset spring 19 is arranged in the lifting groove 18, a lifting clamping block 20 is slidably connected in the lifting groove 18, and one side of the lifting clamping block 20 is fixedly connected with one end of the reset spring 19.
[0027] In use, the oil port head 15 is put into the oil inlet 6, at this time, the locking rotating rod 12 is fixedly connected on the inner wall of the fastening groove 11, one end of the locking rotating rod 12 is rotatably connected with the pressing rod 13, the rotating sleeve is connected on the locking rotating rod 12, the pressing rod 13 is rotated by manually pulling the rotating handle, at this time, the inclined surface of the inclined pressing block 14 installed on the fastening pressing plate abuts against one end of the oil port head 15, the inclined pressing block 14 deforms the sealing gasket 10 abutting against the oil port head 15 and the head gasket 16 on the oil port head 15 by continuously rotating with force, at this time, the inclined pressing block 14 moves to the surface of one end of the oil port head 15, the pressing rod 13 completely presses the oil port head 15, and the limiting block 17 is connected on the end surface of the oil port head 15, and the lifting groove 18 is arranged on one side of the limiting block 17, the reset spring 19 and the lifting clamping block 20 are arranged in the lifting groove 18, when the fastening pressing plate on the pressing rod 13 rotates to the path of the limiting block 17, the lifting clamping block 20 needs to be pressed down first, after the fastening pressing plate passes through the lifting clamping block 20, the lifting clamping block 20 is released by the elastic force of the reset spring 19, the lifting clamping block 20 is reset to extend into the inside of the lifting groove 18, and the lifting clamping block 20 can limit the pressing rod 13 in cooperation with the limiting block 17, so as to prevent the pressing rod 13 from loosening and causing oil leakage in a bumpy road section.
[0028] Referring to Figure 6Further, the sealing mechanism comprises a sealing groove 7 formed on the inner wall of the oil inlet 6, the sealing groove 7 is internally provided with a sealing ring 8, the middle part of the inner wall of the oil inlet 6 is fixedly connected with a connecting ring 9, one side of the connecting ring 9 is provided with a sealing gasket 10, the surface of the oil port head 15 is provided with a head gasket 16, one side of the head gasket 16 is in contact with the inner wall of the fastening groove 11;
[0029] In use, after the oil port head 15 is placed into the oil inlet 6, the oil port head 15 is pressed by the pressing rod 13, the sealing ring 8 is compensated with the surface of the oil port head 15, the sealing gasket 10 is compensated with the end of the oil port head 15, and the head gasket 16 is compensated at the connection between the oil port head 15 and the oil inlet 6, thereby greatly enhancing the sealing of the oil.
[0030] In use, the inner wall of the oil inlet 6 is additionally provided with the sealing ring 8, the sealing mechanism is mainly realized by the sealing ring 8, the sealing gasket 10 and the head gasket 16, the connecting ring 9 is arranged in the oil inlet 6, the sealing gasket 10 is installed on the connecting ring 9, the head gasket 16 is additionally arranged on the oil port head 15, three layers of sealing can be formed after the oil port head 15 is installed, thereby greatly reducing the risk of oil leakage, the inclined pressing block 14 is pressed against the oil port head 15 by rotating the pressing rod 13 by hand, the pressing force makes the sealing gasket 10, the sealing ring 8 and the head gasket 16 be compensated, thereby greatly enhancing the sealing, the pressing rod 13 is limited by the limiting device, thereby preventing the sealing from being reduced and the phenomenon of oil leakage from occurring in the process of driving the automobile on a bumpy road.
[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A high-strength automobile steering knuckle comprising a steering knuckle body (1) and a shaft rod (2) fixedly installed inside the steering knuckle body (1), characterized in that: One side of the knuckle body (1) is fixedly provided with a high-strength part, a fastening groove (11) is arranged on the surface of the knuckle body (1), an oil inlet (6) is arranged in the fastening groove (11), a sealing mechanism for oil sealing is arranged in the oil inlet (6), an oil port end cap (15) is arranged in the oil inlet (6), and a limiting device is arranged at one end of the oil port end cap (15).
2. A high-strength automotive knuckle according to claim 1, characterized in that: The high-strength part comprises a reinforcing ring (3), and a weight-reducing groove (5) is arranged on the surface of the reinforcing ring (3), and a plurality of reinforcing ribs (4) are fixedly connected in the weight-reducing groove (5).
3. The high-strength automotive steering knuckle of claim 1, wherein: The sealing mechanism comprises a sealing groove (7) arranged on the inner wall of the oil inlet (6), a sealing ring (8) arranged in the sealing groove (7), a connecting ring (9) fixedly connected to the middle of the inner wall of the oil inlet (6), and a sealing gasket (10) arranged on one side of the connecting ring (9).
4. The high-strength automotive steering knuckle of claim 1, wherein: The surface of the oil port end cap (15) is provided with an end cap gasket (16), and one side of the end cap gasket (16) is in contact with the inner wall of the fastening groove (11).
5. The high-strength automotive steering knuckle of claim 1, wherein: The pressing device comprises two locking rotating rods (12), and one end of each of the two locking rotating rods (12) is rotatably connected with a pressing rod (13).
6. A high-strength automotive knuckle according to claim 5, characterized in that: The pressing rod (13) comprises a rotating sleeve, one side of the rotating sleeve is fixedly connected with a rotating handle, the other side of the rotating sleeve is fixedly connected with a fastening pressing plate, and the bottom of the fastening pressing plate is fixedly connected with an inclined pressing block (14).
7. The high-strength automotive steering knuckle of claim 1, wherein: The limiting device comprises a limiting block (17), a lifting groove (18) is arranged on one side of the connecting position of the limiting block (17) and the oil port end cap (15), a return spring (19) is arranged in the lifting groove (18), a lifting clamping block (20) is slidably connected in the lifting groove (18), and one side of the lifting clamping block (20) is fixedly connected with one end of the return spring (19).
Citation Information
Patent Citations
Anti-fracture automobile steering knuckle
CN218662017U