Knuckle structure
By designing the refueling barrel and oil guide groove system in the steering joint, and using vehicle vibration to export and re-inject lubricant, the problem of heavy loss of steering joint lubricant is solved, the lubrication life is extended, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421167867.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing steering knuckles are large loads and lubricant losses, resulting in abnormal wear, heavy steering, poor back-returning ability, frequent maintenance and high cost.
A steering knuckle structure is designed, using a fuel cylinder and oil guide groove system, which drives the movable plate to export lubricant oil through the vehicle vibration. The lubricant oil is exported through the oil guide groove and re-injected into the lubricating gap to ensure the lubrication of the steering knuckle main pin and avoid abnormal wear.
It effectively extends the service life of lubricating oil, reduces maintenance frequency, reduces maintenance costs, and ensures the lubricating effect of steering joints.
Smart Images
Figure CN222247364U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle steering structures, in particular to a steering knuckle structure. Background Art
[0002] The steering knuckle is one of the important parts in the steering axle of an automobile. It can make the automobile run stably and transmit the driving direction sensitively. The function of the steering knuckle is to transmit and bear the load in front of the automobile, support and drive the front wheel to rotate around the kingpin to steer the automobile. When the automobile is in motion, it is subjected to variable impact loads. The steering knuckle is the hinge for wheel steering, generally in the shape of a fork, with two coaxial holes for installing the kingpin on the upper and lower forks, and the steering knuckle journal is used to install the wheel. The two ears of the pin hole on the steering knuckle are connected to the fist-shaped parts at both ends of the front axle through the kingpin, so that the front wheel can deflect a certain angle around the kingpin to steer the automobile.
[0003] In order to reduce wear, a bronze bushing is pressed into the pin hole of the steering knuckle and lubricant is injected for lubrication. Due to the heavy load on the steering knuckle and the large loss of lubricant, the steering knuckle is prone to abnormal wear, resulting in heavy steering, poor self-centering ability, frequent maintenance and high costs.
[0004] Therefore, it is particularly important to design a steering knuckle structure to solve the above-mentioned defects. Utility Model Content
[0005] In view of the shortcomings of the prior art, the utility model designs a steering knuckle structure, which aims to solve the technical problems in the prior art that the steering knuckle is heavily loaded, the lubricant is greatly lost, and the steering knuckle is prone to abnormal wear, resulting in heavy vehicle steering, poor self-centering ability, frequent maintenance and high cost.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A steering knuckle structure comprises a steering knuckle body, wherein a first connecting ear and a second connecting ear are fixedly connected to the upper and lower ends of the front face of the steering knuckle body respectively, a steering knuckle kingpin is installed between the first connecting ear and the second connecting ear, outer sides of the first connecting ear and the second connecting ear and located at the upper and lower ends of the steering knuckle kingpin are threadedly connected to outer covers, the outer side of the outer cover is threadedly connected to a refueling cylinder, and positioning covers are installed on the inner side of the outer cover and located at the upper and lower ends of the steering knuckle kingpin.
[0008] As a preferred solution of the utility model, a steering knuckle arm is installed at the front end of the first connecting ear, and the left and right ends of the steering knuckle arm are fixedly connected to the first connecting ear by bolts, and a first connecting head is installed at the front end of the steering knuckle arm, and the top end of the first connecting head is threadedly connected to a first fixing sleeve, and the top end of the first connecting head is penetrated by a first fixing pin.
[0009] As a preferred solution of the utility model, a trapezoidal arm is installed at the front end of the second connecting ear, the right end of the trapezoidal arm is fixedly connected to the second connecting ear by a bolt, and a second connecting head is installed at the left end of the trapezoidal arm. The top end of the second connecting head is threadedly connected to a second fixing sleeve, and the top end of the second fixing sleeve is penetrated by a second fixing pin.
[0010] As a preferred solution of the utility model, inner bushings are installed at the upper and lower ends of the steering knuckle kingpin and on the inner sides of the first connecting ear and the second connecting ear, sealing rings are installed inside the first connecting ear and the second connecting ear and on the opposite sides of the two sets of inner bushings, and a thrust bearing is installed at the top of the second connecting ear and on the outer side of the steering knuckle kingpin.
[0011] As a preferred solution of the utility model, lubrication gaps are provided inside the first connecting ear and the second connecting ear and at the ends away from the two sets of inner bushings, and an oil guide gap is provided between the outer cover and the positioning cover.
[0012] As a preferred solution of the utility model, a refueling nozzle is installed on the outside of the refueling cylinder, a guide plate is fixedly connected to the inside of the refueling cylinder, a movable plate is rotatably connected to the side of the inside of the refueling cylinder opposite to the guide plate, and the movable plate is connected to the inner wall of the refueling cylinder through a spring.
[0013] As a preferred solution of the utility model, an oil outlet head is fixedly connected to one end of the refueling cylinder close to the positioning cover, and an oil guide groove is opened on the inner side of the oil outlet head.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model is designed such that before the steering knuckle body is used, the lubricating oil is first introduced into the interior of the refueling cylinder through the refueling nozzle. When the steering knuckle body is installed on a vehicle for use, vibration is generated during the driving of the vehicle, and the vibration affects the spring to drive the movable plate to move. During this process, the lubricating oil is discharged through a gap between the movable plate and the guide plate, and the discharged lubricating oil is discharged through the oil guide groove, and then discharged to the inner side of the outer cover through the oil outlet head. After the lubricating oil is introduced, it is introduced into the lubrication gap through the oil guide gap, and then the lubricating oil is retained in the lubrication gap, so that the lubricating oil is intermittently injected into the outer side of the steering knuckle kingpin, thereby ensuring the lubrication effect of the steering knuckle and avoiding abnormal wear. At the same time, there is no need for frequent maintenance and addition of lubricating oil, which greatly reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall external structure of the utility model;
[0017] Figure 2 This is a cross-sectional view of the overall structure of the utility model;
[0018] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.
[0019] In the figure: 1. steering knuckle body; 2. first connecting ear; 201. steering knuckle arm; 202. first connecting head; 203. first fixing sleeve; 204. first fixing pin; 3. second connecting ear; 301. trapezoidal arm; 302. second connecting head; 303. second fixing sleeve; 304. second fixing pin; 4. steering knuckle kingpin; 401. inner bushing; 402. sealing ring; 403. thrust bearing; 404. lubrication gap; 405. oil guide gap; 5. outer cover; 6. refueling cylinder; 601. refueling nozzle; 602. guide plate; 603. movable plate; 604. spring; 605. oil outlet head; 606. oil guide groove; 7. positioning cover. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example
[0021] See also Figure 1-Figure 3 , the utility model provides a technical solution:
[0022] A steering knuckle structure comprises a steering knuckle body 1, wherein a first connecting ear 2 and a second connecting ear 3 are fixedly connected to the upper and lower ends of the front face of the steering knuckle body 1, a steering knuckle kingpin 4 is installed between the first connecting ear 2 and the second connecting ear 3, an outer cover 5 is threadedly connected to the outer side of the first connecting ear 2 and the second connecting ear 3 and located at the upper and lower ends of the steering knuckle kingpin 4, a refueling cylinder 6 is threadedly connected to the outer side of the outer cover 5, and a positioning cover 7 is installed on the inner side of the outer cover 5 and located at the upper and lower ends of the steering knuckle kingpin 4.
[0023] First, a steering knuckle arm 201 is installed at the front end of the first connecting ear 2, and the left and right ends of the steering knuckle arm 201 are fixedly connected to the first connecting ear 2 by bolts. A first connecting head 202 is installed at the front end of the steering knuckle arm 201, and the top of the first connecting head 202 is threadedly connected to the first fixing sleeve 203, and the top of the first connecting head 202 is penetrated by a first fixing pin 204. The front end of the steering knuckle arm 201 is connected to the automobile steering straight tie rod through the first connecting head 202, and the top of the first connecting head 202 is fixed by the first fixing sleeve 203, and the top of the first fixing sleeve 203 is limited by the first fixing pin 204, so as to prevent its rotation from affecting the fixing effect.
[0024] Furthermore, a trapezoidal arm 301 is installed at the front end of the second connecting ear 3, the right end of the trapezoidal arm 301 is fixedly connected to the second connecting ear 3 by bolts, and a second connecting head 302 is installed at the left end of the trapezoidal arm 301, the top of the second connecting head 302 is threadedly connected to a second fixing sleeve 303, and the top of the second fixing sleeve 303 is penetrated by a second fixing pin 304, the left end of the trapezoidal arm 301 is connected to the transverse rod through the second connecting head 302, the top of the second connecting head 302 is fixed by the second fixing sleeve 303, and the top of the second fixing sleeve 303 is limited by the second fixing pin 304, so as to prevent its rotation from affecting the fixing effect.
[0025] Then, inner bushings 401 are installed at the upper and lower ends of the steering knuckle kingpin 4 and on the inner sides of the first connecting ear 2 and the second connecting ear 3, sealing rings 402 are installed inside the first connecting ear 2 and the second connecting ear 3 and on the opposite side of the two groups of inner bushings 401, and a thrust bearing 403 is installed at the top of the second connecting ear 3 and on the outer side of the steering knuckle kingpin 4. After the lubricating oil is introduced into the outer side of the steering knuckle kingpin 4, lubrication is performed, and the wear is reduced by the inner bushing 401. At the same time, the sealing ring 402 is used to seal to prevent leakage of the lubricating oil.
[0026] Furthermore, a lubrication gap 404 is provided inside the first connecting ear 2 and the second connecting ear 3 and at the end away from the two groups of inner bushings 401, an oil guide gap 405 is provided between the outer cover 5 and the positioning cover 7, and a certain amount of lubricating oil is stored on the inner side of the refueling cylinder 6. After the lubricating oil is introduced, it is introduced into the lubrication gap 404 through the oil guide gap 405. After the lubricating oil is introduced, it enters the lubrication gap 404 and is retained, so as to ensure the lubrication effect on the steering knuckle kingpin 4.
[0027] Secondly, a refueling nozzle 601 is installed on the outer side of the refueling cylinder 6, and a guide plate 602 is fixedly connected to the inside of the refueling cylinder 6. A movable plate 603 is rotatably connected to the side of the inside of the refueling cylinder 6 opposite to the guide plate 602. The movable plate 603 is connected to the inner wall of the refueling cylinder 6 through a spring 604. The lubricating oil is introduced into the interior of the refueling cylinder 6 through the refueling nozzle 601. When the steering knuckle body 1 is installed on the vehicle for use, vibration will be generated during the driving of the vehicle. The vibration affects the spring 604 to drive the movable plate 603 to move. In this process, part of the lubricating oil is discharged through the gap between the movable plate 603 and the guide plate 602.
[0028] Finally, an oil outlet head 605 is fixedly connected to one end of the oil filling cylinder 6 close to the positioning cover 7, and an oil guide groove 606 is opened on the inner side of the oil outlet head 605. The derived lubricating oil is discharged through the oil guide groove 606, and then discharged to the inner side of the outer cover 5 through the oil outlet head 605, so as to intermittently inject lubricating oil into the outer side of the steering knuckle kingpin 4, thereby ensuring the lubrication effect of the steering knuckle and avoiding abnormal wear. At the same time, there is no need for frequent maintenance and adding of lubricating oil, which greatly reduces the maintenance cost.
[0029] In this embodiment, the implementation scenario is specifically as follows: before the steering knuckle body 1 is used, the lubricating oil is first introduced into the interior of the refueling barrel 6 through the refueling nozzle 601. When the steering knuckle body 1 is installed on a vehicle for use, vibration will be generated during the driving of the vehicle. The vibration affects the spring 604 to drive the movable plate 603 to move. During this process, the lubricating oil is discharged through the gap between the movable plate 603 and the guide plate 602. The discharged lubricating oil is discharged through the oil guide groove 606, and then discharged to the inner side of the outer cover 5 through the oil outlet head 605. After the lubricating oil is introduced, it is introduced into the lubrication gap 404 through the oil guide gap 405. After the lubricating oil is introduced, it enters the lubrication gap 404 and is retained, thereby intermittently injecting lubricating oil into the outer side of the steering knuckle kingpin 4. The entire operation process is simple and convenient. Compared with the existing steering knuckle structure, the utility model can intermittently inject lubricating oil through design, thereby ensuring the lubrication effect of the steering knuckle and avoiding abnormal wear. At the same time, it does not require frequent maintenance and addition of lubricating oil, which greatly reduces the maintenance cost.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A steering knuckle structure, comprising a steering knuckle body (1), characterized in that: The first connecting ear (2) and the second connecting ear (3) are respectively fixedly connected at the upper and lower ends of the front side of the steering knuckle body (1); a steering knuckle main pin (4) is installed between the first connecting ear (2) and the second connecting ear (3); an outer cover (5) is threadedly connected to the outer side of the first connecting ear (2) and the second connecting ear (3) and located at the upper and lower ends of the steering knuckle main pin (4); a refueling cylinder (6) is threadedly connected to the outer side of the outer cover (5); and a positioning cover (7) is installed on the inner side of the outer cover (5) and located at the upper and lower ends of the steering knuckle main pin (4).
2. A steering knuckle structure according to claim 1, characterized in that: A steering knuckle arm (201) is installed at the front end of the first connecting ear (2); both left and right ends of the steering knuckle arm (201) are fixedly connected to the first connecting ear (2) via bolts; a first connecting head (202) is installed at the front end of the steering knuckle arm (201); a first fixing sleeve (203) is threadedly connected to the top end of the first connecting head (202); and a first fixing pin (204) is passed through the top end of the first connecting head (202).
3. A steering knuckle structure according to claim 1, characterized in that: A trapezoidal arm (301) is installed at the front end of the second connecting ear (3); the right end of the trapezoidal arm (301) is fixedly connected to the second connecting ear (3) by means of a bolt; a second connecting head (302) is installed at the left end of the trapezoidal arm (301); a second fixing sleeve (303) is threadedly connected to the top end of the second connecting head (302); and a second fixing pin (304) is penetrated at the top end of the second fixing sleeve (303).
4. A steering knuckle structure according to claim 1, characterized in that: Inner bushings (401) are installed at the upper and lower ends of the steering knuckle kingpin (4) and located on the inner sides of the first connecting ear (2) and the second connecting ear (3); sealing rings (402) are installed inside the first connecting ear (2) and the second connecting ear (3) and located on the opposite sides of the two sets of inner bushings (401); and a thrust bearing (403) is installed at the top of the second connecting ear (3) and located on the outer side of the steering knuckle kingpin (4).
5. A steering knuckle structure according to claim 4, characterized in that: A lubrication gap (404) is provided inside the first connecting ear (2) and the second connecting ear (3) and at the ends away from the two sets of inner bushings (401), and an oil guide gap (405) is provided between the outer cover (5) and the positioning cover (7).
6. A steering knuckle structure according to claim 1, characterized in that: A refueling nozzle (601) is installed on the outside of the refueling cylinder (6), a guide plate (602) is fixedly connected to the inside of the refueling cylinder (6), a movable plate (603) is rotatably connected to the side of the inside of the refueling cylinder (6) opposite to the guide plate (602), and the movable plate (603) is connected to the inner wall of the refueling cylinder (6) via a spring (604).
7. A steering knuckle structure according to claim 6, characterized in that: An oil outlet head (605) is fixedly connected to one end of the oil filling cylinder (6) close to the positioning cover (7), and an oil guide groove (606) is provided on the inner side of the oil outlet head (605).