Forklift steering axle
By combining the scraper ring and electronic monitoring mechanism, the problem of bearing damage caused by wear of forklift steering knuckles is solved, achieving timely replacement and reducing maintenance costs.
Patent Information
- Application Number
- CN202520093738.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-15
AI Technical Summary
When the steering knuckle of a forklift is severely worn, the bearing length changes, causing a height difference between the axle and the steering mechanism, which damages the hydraulic telescopic rod and hydraulic mechanism. This results in high repair costs and difficulty in accurately determining when to replace it.
The design incorporates a scraping ring and an electronic monitoring mechanism. The scraping ring observes wear by scraping a colored ring, while a pressure sensor monitors positional deviations and issues an alarm, enabling both mechanical and electronic monitoring for timely bearing replacement.
It improves the accuracy and timeliness of bearing wear assessment, reduces maintenance costs, and prevents damage to hydraulic mechanisms caused by severely worn bearings.
Smart Images
Figure CN223672176U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of forklift steering axle, specifically relates to a forklift steering axle. BACKGROUND
[0002] In modern logistics, warehousing and many industrial handling scenes, forklifts as a kind of key material handling equipment, play an indispensable role. The kingpin on the forklift steering axle bears the heavy responsibility of conducting the weight of the forklift body and the bridge body to the wheels, and is the key hub of force transmission. The steering knuckle closely connected with it not only has to bear the huge weight from the body, goods and bridge body, but also needs to maintain precise and flexible steering function at all times. In the frequent operation process of forklifts, the steering knuckle is under high load and complex stress state for a long time. Each steering operation requires the steering knuckle to overcome friction, torsion and other external forces, which makes it extremely vulnerable to wear and tear.
[0003] When the steering knuckle is severely worn, it will trigger a series of chain reactions. First, the bearing on the steering knuckle as a key support and rotating part will gradually shorten after wear and tear. Since the bearing plays an important role in maintaining the relative position relationship between the steering knuckle and the bridge body, the change in its length directly leads to a significant change in the vertical height of the bridge body and the steering knuckle. Once this height difference occurs, the steering knuckle and the steering mechanism will pull the hydraulic telescopic rod inside the bridge body upward during operation, and be forced to bear additional abnormal tension. This not only exceeds the design load range of the hydraulic telescopic rod, but also easily causes further damage to the entire hydraulic mechanism, resulting in high maintenance costs. And it is usually observed regularly, and it is difficult and inaccurate to determine the damage, which makes it difficult to understand the wear and tear of the steering knuckle bearing in detail in a timely manner, and sometimes the replacement is too early or too late. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a kind of forklift steering axle, with the characteristics of solving the damage of remaining components caused by wear and tear of steering knuckle component.
[0005] The utility model provides following technical scheme: including steering bridge body, hydraulic drive mechanism, two telescopic adjusting rods and two mounting disc, steering bridge body both sides all are provided with steering kingpin, steering knot and two bearings, two steering knot all are rotationally connected between corresponding two bearings, two steering knot one side all are welded with two rotary plates, rotationally connected with drive moon plate between two rotary plates, the end of two telescopic adjusting rods all is provided with connecting gap, drive moon plate rotationally connects in corresponding connecting inner wall, the bottom end of steering bridge body is provided with two scrapes rings, the scrape ring is connected in corresponding steering knot side wall, two steering knot side wall all are provided with a plurality of color rings, the color ring with scrape ring position corresponds, the scrape ring with rotary plate and drive moon plate all do not contact.
[0006] Among them, two scrape rings one side all are fixedly connected with L type support rod, L type support rod is installed in the bottom end inner wall of steering bridge body.
[0007] Among them, the inner wall of scrape ring is slidably connected with a plurality of scrapers, a plurality of scrapers are slidably connected to the side wall of steering knot.
[0008] Among them, two scrape rings are provided with a plurality of inner sliding grooves, a plurality of scrapers are fixedly connected with a limiting plate on one side, the limiting plate is slidably connected to the inner wall of the corresponding inner sliding groove, a plurality of inner sliding grooves are provided with a spring for pushing the limiting plate.
[0009] Among them, two electronic monitoring mechanisms are arranged in the steering bridge body, the electronic monitoring mechanism comprises a touch pressure sensor and a fixed ring, two touch pressure sensors are installed on the inner wall of the top end of the steering bridge body, two fixed rings are installed on the side wall of the corresponding steering knot, a spherical rolling body is installed at the bottom end of the touch pressure sensor, and the spherical rolling body is slidably connected to the top end of the corresponding fixed ring.
[0010] Among them, an audible and visual alarm is arranged between the two touch pressure sensors, the audible and visual alarm is installed on the top end of the steering bridge body, and the audible and visual alarm is electrically connected with the two touch pressure sensors.
[0011] The utility model has the advantages that: by observing the specific conditions of the color ring worn by the scrape ring, the displacement between the steering bridge body and the steering knot can be judged by the staff, so that it can be judged whether the wear degree of the bearing reaches the need of replacement, the use is convenient and the accuracy is improved, the staff can replace the bearing in time according to the wear condition of the color ring, the damage of the telescopic adjusting rod and the hydraulic drive mechanism caused by the continued use of the seriously worn bearing is prevented, and the maintenance cost in the later period is reduced.
[0012] The parts not involved in the device are the same as or can be realized by the prior art. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a top view of the structure of this utility model;
[0015] Figure 3 This is a three-dimensional enlarged structural diagram of the steering spindle and other components in this utility model;
[0016] Figure 4 This is a three-dimensional enlarged cross-sectional structural diagram of the components such as the scraper ring in this utility model;
[0017] Figure 5 This is a three-dimensional exploded and enlarged structural diagram of the electronic monitoring mechanism in this utility model.
[0018] In the diagram: 1. Steering axle; 11. Hydraulic drive mechanism; 12. Telescopic adjustment rod; 121. Connecting notch; 13. Mounting plate; 2. Steering kingpin; 21. Steering knot; 211. Color ring; 22. Bearing; 23. Rotary plate; 24. Drive moon plate; 3. Scraper ring; 31. L-shaped support rod; 32. Scraper; 321. Limiting plate; 33. Inner groove; 34. Spring; 4. Electronic monitoring mechanism; 41. Touch pressure sensor; 42. Fixing ring; 43. Spherical rolling element; 44. Audible and visual alarm. Detailed Implementation
[0019] Please see Figures 1-5 The present invention provides the following technical solution: including a steering axle 1, a hydraulic drive mechanism 11, two telescopic adjustment rods 12 and two mounting plates 13. Both sides of the steering axle 1 are provided with steering kingpins 2, steering knots 21 and two bearings 22. The two steering knots 21 are rotatably connected between the corresponding two bearings 22. Two rotating plates 23 are welded to one side of each of the two steering knots 21. A drive plate 24 is rotatably connected between the two rotating plates 23. The ends of the two telescopic adjustment rods 12 are provided with connecting notches 121. The drive plate 24 is rotatably connected to the inner wall of the corresponding connecting notch 121. Two scraper rings 3 are provided at the bottom of the steering axle 1. The scraper rings 3 are slidably connected to the side wall of the corresponding steering knot 21. The side walls of the two steering knots 21 are provided with several color rings 211. The color rings 211 correspond to the scraper rings 3. The scraper rings 3 do not contact the rotating plates 23 and the drive plate 24.
[0020] In the embodiment, the steering bridge body 1 is installed below the forklift, the steering bridge body 1 is connected with the wheels through the wheel hubs on the two sides of the steering joint 21, so that the forklift can move, the mounting disc 13 completes the locking work between the steering kingpin 2 and the steering bridge body 1, the steering bridge body 1 adjusts the two telescopic adjusting rods 12 through the hydraulic drive mechanism 11, the telescopic adjusting rod 12 is connected with the drive moon plate 24 through the connecting gap 121, the telescopic adjusting rod 12 rotates and swings the rotating plate 23 by pulling or pushing the drive moon plate 24, the rotating plate 23 drives the steering joint 21 to steer outside the steering kingpin 2, thereby completing the steering function of the wheels, the steering joint 21 is in contact and force transmission with the steering bridge body 1 through the upper and lower bearings 22, the bearings 22 reduce the resistance problem of the steering joint 21 during steering, and flexible steering is realized. The bearings 22 bear a large force, so that the bearings 22 are worn after long-term use, the space in the connecting gap 121 can meet the certain degree of height floating change of the drive moon plate 24 inside, after the bearings 22 are worn, the steering bridge body 1 shows a downward trend between the two steering kingpins 2, so that the hydraulic drive mechanism 11 and the telescopic adjusting rod 12 also follow the downward trend, the position of the scraping ring 3 is lowered, and the scraping ring 3 scrapes the color ring 211 on the steering joint 21 during rotation, so that the scraping ring 3 can scrape off a plurality of color rings 211, the colors of the plurality of color rings 211 are different, and the specific conditions of the color rings 211 scraped off by the scraping ring 3 are observed, so as to facilitate the staff to judge the displacement between the steering bridge body 1 and the steering joint 21, thereby judging whether the wear degree of the bearings 22 reaches the need of replacement, the convenience of use is improved, the accuracy is improved, the staff can replace the bearings 22 in time according to the wear condition of the color ring 211, the damage of the telescopic adjusting rod 12 and the hydraulic drive mechanism 11 caused by the continued use of the seriously worn bearings 22 is prevented, and the maintenance cost in the later period is reduced.
[0021] The two scraping rings 3 are fixedly connected with L-shaped supporting rods 31, and the L-shaped supporting rods 31 are installed on the inner wall at the bottom end of the steering bridge body 1; the steering bridge body 1 supports the two L-shaped supporting rods 31, and the L-shaped supporting rods 31 support the scraping rings 3, so that the L-shaped supporting rods 31 can always maintain stable position distribution with the steering bridge body 1, and the scraping rings 3 can respond to changes in time when the steering bridge body 1 and the steering joint 21 have body position deviation.
[0022] A plurality of scraping plates 32 are slidably connected to the inner wall of the scraping ring 3 and the side wall of the steering joint 21; the scraping plates 32 protrude from the inner side of the scraping ring 3, and the scraping ring 3 scrapes the color ring 211 on the surface of the steering joint 21 through the scraping plates 32, so that the falling effect of the color ring 211 can be stably realized, and personnel can judge.
[0023] A plurality of inner sliding grooves 33 are formed in the two scraping rings 3, a plurality of scraping plates 32 are fixedly connected with limiting plates 321 on one side, the limiting plates 321 are slidingly connected with the inner walls of the corresponding inner sliding grooves 33, and springs 34 are installed on the inner walls of the inner sliding grooves 33 and used for pushing the limiting plates 321; the inner sliding grooves 33 accommodate and limit the limiting plates 321, the inner sliding grooves 33 push the limiting plates 321 outwards through the springs 34, so that the limiting plates 321 can push the scraping plates 32 to slide towards the steering joints 21, thereby ensuring the stable scraping effect of the scraping plates 32 on the color rings 211.
[0024] The steering bridge body 1 is provided with two electronic monitoring mechanisms 4, the electronic monitoring mechanisms 4 include touch pressure sensors 41 and fixed rings 42, the two touch pressure sensors 41 are installed on the inner walls at the top ends of the steering bridge body 1, the two fixed rings 42 are installed on the side walls of the corresponding steering joints 21, spherical rolling bodies 43 are installed at the bottom ends of the touch pressure sensors 41, and the spherical rolling bodies 43 are slidingly connected with the top ends of the corresponding fixed rings 42; the scraping rings 3 and the electronic monitoring mechanisms 4 jointly form two groups of cooperating detection, realize double monitoring of the mechanical and the electronic, the steering joints 21 support the fixed rings 42, the steering bridge body 1 supports the touch pressure sensors 41, when a positional deviation occurs between the steering bridge body 1 and the steering joints 21, the extrusion force fed back by the fixed rings 42 to the touch pressure sensors 41 changes, when the fixed rings 42 rotate with the steering joints 21, the touch pressure sensors 41 can reduce the resistance through the spherical rolling bodies 43, and stable use is ensured; when the pressure applied by the fixed rings 42 to the touch pressure sensors 41 exceeds a set range, the touch pressure sensors 41 transmit the information to the forklift control system through the direction of the wireless signal, and the staff is reminded to replace the bearings 22 in time.
[0025] An audible and light alarm 44 is arranged between the two touch pressure sensors 41, the audible and light alarm 44 is installed at the top end of the steering bridge body 1, and the audible and light alarm 44 is electrically connected with the two touch pressure sensors 41; when the pressure applied by the fixed rings 42 to the touch pressure sensors 41 exceeds the set range, the touch pressure sensors 41 simultaneously transmit signals to the audible and light alarm 44, so that the audible and light alarm 44 can give an audible and light alarm to attract the attention of the surrounding staff and remind the staff to replace the bearings 22 in time.
[0026] The working principle and use process of the utility model: when the bearing 22 appears abrasion after long-term use, the steering bridge body 1 appears downward trend between two steering kingpins 2, makes the scraping ring 3 and the touch pressure sensor 41 position drop, the scraping ring 3 is contacted with the color ring 211 of different position, the scraping ring 3 is scraped the color ring 211 on the surface of steering knot 21 through the scraper 32, makes the shedding effect of color ring 211 can stably carry out, is convenient for personnel to judge, through the observation of the specific situation of the color ring 211 worn off, it is convenient for the staff to judge the displacement between the steering bridge body 1 and steering knot 21, thereby judging whether the abrasion degree of bearing 22 reaches the need of replacement, convenient to use and the accuracy is improved, so that the staff can replace bearing 22 in time according to the abrasion condition of color ring 211, simultaneously, the position deviation appears between steering bridge body 1 and steering knot 21, when the pressure that fixed ring 42 exerts to touch pressure sensor 41 exceeds the pressure that is set, touch pressure sensor 41 will pass the information through the direction of wireless signal and give forklift control system, and through the audible and light alarm 44 carries out audible and light alarm prompt, causes the attention of surrounding staff, reminds the staff to replace bearing 22 in time.
Claims
1. A forklift truck steering axle, comprising a steering axle body (1), a hydraulic drive mechanism (11), two telescopic adjusting rods (12) and two mounting plates (13), the steering axle body (1) is provided with a steering kingpin (2), a steering knuckle (21) and two bearings (22) on both sides, characterized in that: Both the steering knots (21) are rotatably connected between the corresponding two bearings (22), both sides of the two steering knots (21) are welded with two rotating plates (23), a drive moon plate (24) is rotatably connected between the two rotating plates (23), both ends of the two telescopic adjusting rods (12) are provided with a connecting notch (121), the drive moon plate (24) is rotatably connected to the inner wall of the corresponding connecting notch (121), two scraper rings (3) are arranged at the bottom end of the steering bridge body (1), the scraper rings (3) are slidably connected to the side walls of the corresponding steering knots (21), a plurality of color rings (211) are arranged on the side walls of the two steering knots (21), the color rings (211) correspond in position to the scraper rings (3), and the scraper rings (3) are not in contact with the rotating plates (23) and the drive moon plate (24).
2. A forklift truck steering axle as claimed in claim 1, characterised in that: Both sides of the two scraper rings (3) are fixedly connected with L-shaped supporting rods (31), and the L-shaped supporting rods (31) are installed on the inner walls of the bottom ends of the steering bridge bodies (1).
3. The forklift truck steering axle according to claim 1, wherein: The inner walls of the scraper rings (3) are slidably connected with a plurality of scraper plates (32), and the plurality of scraper plates (32) are slidably connected to the side walls of the steering knots (21).
4. A forklift truck steering axle as claimed in claim 3, characterised in that: A plurality of inner sliding grooves (33) are arranged in the two scraper rings (3), the sides of the plurality of scraper plates (32) are fixedly connected with limiting plates (321), the limiting plates (321) are slidably connected to the inner walls of the corresponding inner sliding grooves (33), and the inner walls of the plurality of inner sliding grooves (33) are provided with springs (34) for pushing the limiting plates (321).
5. The forklift truck steering axle according to claim 1, wherein: The steering bridge body (1) is provided with two electronic monitoring mechanisms (4), the electronic monitoring mechanism (4) comprises a touch pressure sensor (41) and a fixed ring (42), both the touch pressure sensors (41) are installed on the inner walls of the top ends of the steering bridge bodies (1), both the fixed rings (42) are installed on the side walls of the corresponding steering knots (21), and the bottom end of the touch pressure sensor (41) is provided with a spherical rolling body (43) which is slidably connected to the top end of the corresponding fixed ring (42).
6. A forklift truck steering axle according to claim 5, characterised in that: An audible and visual alarm (44) is arranged between the two touch pressure sensors (41), the audible and visual alarm (44) is installed on the top end of the steering bridge body (1), and the audible and visual alarm (44) is electrically connected with the two touch pressure sensors (41).