Steering axle position detection device

Abstract

A steering axle position detection device effectively solves the problems that most of existing steering axles can only detect the neutral position state, and the detection device is not convenient to disassemble and assemble. Comprising a steering axle body, the steering axle body comprises a transverse front axle, a steering knuckle is arranged on the front axle, hubs are rotationally connected to the two ends of the front axle respectively, a rotating center is formed by the front axle and the hubs, the end, away from the front axle, of the steering axle is connected with the hubs, and induction plates are fixed to the hubs. The induction plate is of an arc-shaped structure, the induction plate and the rotating center are concentrically arranged, and a detection groove is formed in the induction plate; through the arrangement of the induction plate, the detection groove, the sensor and the like, the rotation direction of the steering axle is detected under the cooperation of the sensor and the detection groove, compared with a mode of being installed in a main pin in the market, when main components such as the sensor are damaged, the structure can achieve faster disassembly, meanwhile, the overall structure is simple and ingenious, and the cost is low. And the universality of the detection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering axle detection, in particular to a steering axle position detection device. Background Art

[0002] The steering axle is a key component of the automobile chassis. It is responsible for steering the vehicle. Its main structure includes the front axle, kingpin, steering knuckle (shroud) and wheel hub.

[0003] The Chinese patent application number CN202221794707.0 discloses a steering axle with a steering angle detection device, including a bridge body, a steering knuckle and a kingpin, and a detection device; the detection device includes a dust cover connected to the end of the bridge body, and an upper and lower skeleton oil seals are arranged between the dust cover and the inner cavity of the bridge body, and the upper and lower skeleton oil seals form a closed cavity, and the bearing is located in the closed cavity; a magnet is installed on the kingpin, and a contactless potentiometer sensor for sensing changes in the magnetic field of the magnet is installed on the dust cover; the present application installs a contactless potentiometer sensor on the inner side of the dust cover, a magnet is fixed on the kingpin, and the steering knuckle indirectly drives the magnet to rotate to change the magnetic field, and the Hall effect can be used to realize the acquisition of the rotation speed by the contactless potentiometer sensor; not only can the steering angle of the steering knuckle be accurately and reliably obtained, but also the mechanical wear and delay problems of the previous contact potentiometer are solved, and the bearing grease is prevented from affecting the potentiometer and causing short-circuit damage, thereby improving the reliability of the whole vehicle.

[0004] The existing steering axle angle detection still has the following problems:

[0005] 1. Some steering axle manufacturers install a sensor with mid-position detection on the steering cylinder, which can only detect the mid-position state but not other position states, causing the driver to be unclear about the steering position of the vehicle.

[0006] 2. Most steering axle detection components set the sensor inside the kingpin, such as using a Hall sensor for detection. However, the sensor inside the kingpin is very inconvenient for later disassembly and assembly. When the sensor is damaged, it is difficult for workers to use tools to quickly remove the sensor inside the kingpin due to the small space under the vehicle, which is very time-consuming and laborious. Utility Model Content

[0007] In view of the above problems, the present invention provides a steering axle position detection device, which has the advantages of multiple steering position detections and easy disassembly and assembly of the detection device.

[0008] The technical solution is that the utility model comprises a steering axle body, the steering axle body comprises a transversely placed front axle, a steering knuckle is arranged on the front axle, both ends of the front axle are rotatably connected to wheel hubs, the front axle and the wheel hub form a rotation center, and one end of the steering axle away from the front axle is connected to the wheel hub;

[0009] A sensing plate is fixed on the wheel hub, the sensing plate is an arc-shaped structure, the sensing plate is arranged concentrically with the center of rotation, a detection slot is opened on the sensing plate, a connecting plate located below the sensing plate is fixed on the front axle, a sensor is fixed on the connecting plate, the sensor is located below the detection slot, and the sensor is externally connected to a detection display device.

[0010] Preferably, the detection groove includes two concentric first arc grooves of different diameters, the two first arc grooves are arranged concentrically with the center of rotation, a connecting groove is opened between the two arc grooves, the connecting groove and the two arc grooves form a "Z"-shaped structure, the number of the sensors is two, the sensors are Hall sensors, and the two sensors are located below the first arc grooves.

[0011] Preferably, the detection groove includes a second arc groove and a third arc groove, the second arc groove is located in the middle of the sensing plate, and the third arc groove is located at the outer edge of the sensing plate, the second arc groove and the third arc groove are respectively arranged concentrically with the center of rotation, and the two sensors correspond one-to-one to the second arc groove and the third arc groove respectively. The number of the sensors is two, and the sensors are Hall sensors. The two sensors are respectively located in the second arc groove and the third arc groove.

[0012] Preferably, the detection slot includes a detection hole located in the middle of the sensing plate, an arc-shaped sensing slot is opened at the bottom of the sensing plate, the detection hole passes through the sensing slot, the sensing slot is concentrically arranged with the center of rotation, an arc-shaped plate is fixed at one end of the sensing slot, the thickness of the arc-shaped plate is greater than the depth of the sensing slot, and a sensor located below the detection hole is fixed on the connecting plate, and the type of the sensor is a laser ranging sensor.

[0013] Preferably, a cleaning assembly is fixed to one side of the connecting plate, and the cleaning assembly includes a mounting plate fixed to one side of the connecting plate, and two symmetrically distributed arcuate bars are fixed to the mounting plate, and the arcuate bars are arranged concentrically with the center of rotation, and connecting tubes are fixed to the two arcuate bars, and a connecting rod that slides up and down is arranged on the connecting tube, and the connecting rod is connected to the connecting tube by a spring, and a scraper is fixed to one end of the connecting rod away from the connecting tube, and the scraper contacts the sensing groove, and conical blocks are fixed to both sides of the scraper, and one end of the arc plate close to the detection hole is an arc surface;

[0014] A horizontal connecting frame is fixed on the connecting rod, and the connecting frame includes two symmetrically distributed arc-shaped support bars, which are arranged concentrically with the center of rotation. The two arc-shaped support bars are fixed with the same connecting bar at one end away from the connecting rod, and two symmetrically distributed contact balls are fixed on the top of the connecting bar, and the contact balls are in contact with the sensing groove.

[0015] Preferably, an arc-shaped guide plate is fixed to one side of the connecting strip, and the arc-shaped guide plate is arranged concentrically with the center of rotation.

[0016] Preferably, a conical cylinder is coaxially arranged on the top of the connecting cylinder, and the conical cylinder includes two symmetrically distributed half-conical cylinders.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. Through the settings of the induction plate, detection slot and sensor, the rotation direction of the steering axle is detected with the cooperation of the sensor and the detection slot. Compared with the method of installing it in the kingpin on the market, this structure can achieve faster disassembly when the sensor and other major components are damaged. At the same time, the overall structure is simple and ingenious, which improves the universality of the detection device.

[0019] 2. Through the settings of detection holes, sensing slots and laser ranging sensors, when the sensor is coaxial with the detection hole, the distance feedback of the laser ranging sensor is much greater than the preset detection value. At this time, the steering axle is in the neutral state. When the wheel hub deflects to the left, the laser of the laser ranging sensor hits the arc plate. At this time, the distance is less than the distance from the laser ranging sensor to the sensing plate, which is a left-turning state. Conversely, when the laser feedback distance of the laser ranging sensor is slightly greater than the distance from the sensor to the sensing plate, it is a right-turning state. Compared with the above two methods, one sensor is reduced, saving the equipment cost of the steering detection equipment.

[0020] 3. Through the arrangement of arc strips, connecting tubes and scrapers, the scraper is located in the sensing slot and contacts the sensing slot. When the sensing plate is deflected, the scraper cleans up the dust accumulated in the sensing slot to avoid excessive dust accumulation in the sensing slot and affecting the detection result of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the steering axle body and connecting parts in the utility model.

[0022] Figure 2 It is a side view of the steering axle body and the connecting parts in the utility model.

[0023] Figure 3 It is a stereogram of Example 1 of the present utility model.

[0024] Figure 4 It is a stereogram of Example 2 of the present utility model.

[0025] Figure 5 It is a stereogram of Example 3 of the present utility model.

[0026] Figure 6 It is a schematic diagram of the induction tank in the utility model.

[0027] Figure 7 It is a structural schematic diagram of the arc plate in the utility model.

[0028] Figure 8 It is a structural schematic diagram of the cleaning component in the utility model.

[0029] Explanation of the symbols in the schematic diagram:

[0030] 1. Steering axle body; 2. Front axle; 3. Steering knuckle; 4. Wheel hub; 5. Rotating center; 6. Induction plate; 7. Detection slot; 8. Connecting plate; 9. Sensor; 10. First arc-shaped slot; 11. Connecting slot; 12. Second arc-shaped slot; 13. Third arc-shaped slot; 14. Detection hole; 15. Induction slot; 16. Arc-shaped plate; 17. Mounting plate; 18. Arc-shaped strip; 19. Connecting cylinder; 20. Connecting rod; 21. Scraper; 22. Conical block; 23. Connecting frame; 24. Arc-shaped support strip; 25. Connecting strip; 26. Contact ball; 27. Arc-shaped guide plate; 28. Conical cylinder. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Depend on Figures 1 to 3 The invention provides a steering axle body 1, wherein the steering axle body 1 includes a transversely placed front axle 2, a steering knuckle 3 is arranged on the front axle 2, and the steering knuckle 3 is also called a ram's horn. Both ends of the front axle 2 are rotatably connected to wheel hubs 4, and the front axle 2 and the wheel hub 4 form a rotation center 5. The end of the steering axle away from the front axle 2 is connected to the wheel hub 4. Most of the above structures are common structures of existing steering axles.

[0033] In order to detect multiple rotation directions of the steering axle and solve the problem that most of the devices on the market can only detect the neutral state, a sensing plate 6 is fixed on the wheel hub 4. The sensing plate 6 is made of iron material and has an arc structure. The sensing plate 6 is concentrically arranged with the rotating center 5. A detection slot 7 is provided on the sensing plate 6. A connecting plate 8 located below the sensing plate 6 is fixed on the front axle 2. The connecting plate 8 has a Z-shaped structure. A sensor 9 is fixed on the connecting plate 8. The sensor 9 is located below the detection slot 7. The sensor 9 is externally connected to a detection display device, which is located in the cockpit. The detection display device includes a display panel and a built-in intelligent module. The driver can view the rotation direction of the tire in real time through the detection display device. Through the settings of the sensing plate 6, the detection slot 7 and the sensor 9, the rotation direction of the steering axle is detected in cooperation with the sensor 9 and the detection slot 7. Compared with the method of installing in the kingpin on the market, when the main components such as the sensor 9 are damaged, this structure can achieve faster disassembly. At the same time, the overall structure is simple and ingenious, which improves the universality of the detection device.

[0034] Embodiment 1:

[0035] refer to Figure 3 As shown, the detection groove 7 includes two concentric first arc grooves 10 but of different diameters, the two first arc grooves 10 are concentrically arranged with the rotating center 5, a connecting groove 11 is opened between the two first arc grooves 10, and the connecting groove 11 and the two first arc grooves 10 form a "Z"-shaped structure. The number of the sensors 9 is two, and the sensor 9 is a Hall sensor 9. The two sensors 9 are located below the first arc groove 10. Through the arrangement of the first arc groove 10, the sensor 9 and the connecting groove 11, the two sensors 9 are located below the two first arc grooves 10. When the two sensors 9 are located in the connecting groove 11 at the same time, it means that the steering axle is in the neutral state. When the steering axle turns left or right, one of the sensors 9 is blocked. The data of the sensor 9 can be fed back to the detection display device in real time, and the driver can also view the steering direction of the steering axle through the detection display device.

[0036] Embodiment 2:

[0037] refer to Figure 4As shown, the second opening form of the detection groove 7, the detection groove 7 includes a second arc groove 12 and a third arc groove 13, the second arc groove 12 is located in the middle of the sensing plate 6, and the third arc groove 13 is located at the outer edge of the sensing plate 6, the second arc groove 12 and the third arc groove 13 are respectively arranged concentrically with the rotating center 5, and two sensors 9 correspond to the second arc groove 12 and the third arc groove 13 one by one, respectively, and the number of the sensors 9 is two, and the sensor 9 is a Hall sensor 9, and the two sensors 9 are respectively located in the second arc groove 12 and the third arc groove 13. It can be seen from the figure that the second arc groove 12 and the third arc groove 13 have a larger change in the opening position compared with the first arc groove 10, and the connection groove 11 is cancelled, so that the preparation process of the sensing plate 6 is simpler, and the predetermined use effect can be achieved at the same time. When both sensors 9 are not blocked, the steering bridge is in a neutral state, and one of them is blocked, which means that the steering bridge has turned, and the specific turning direction depends on which sensor 9 is blocked.

[0038] Embodiment 3:

[0039] refer to Figures 5 to 7 As shown, considering the high cost of using two sensors 9, in order to save equipment cost, the detection slot 7 includes a detection hole 14 located in the middle of the sensing plate 6, and the two arc-shaped slots are changed into a circular hole. The bottom of the sensing plate 6 is provided with an arc-shaped sensing slot 15, and the detection hole 14 passes through the sensing slot 15. The sensing slot 15 is concentrically arranged with the rotating center 5. An arc-shaped plate 16 is fixed at one end of the sensing slot 15, and the thickness of the arc-shaped plate 16 is greater than the depth of the sensing slot 15. The sensor 9 located below the detection hole 14 is fixed on the connecting plate 8. The type of the sensor 9 is a laser ranging sensor 9. 14, the sensing slot 15 and the laser ranging sensor 9 are arranged. When the sensor 9 is coaxial with the detection hole 14, the distance feedback of the laser ranging sensor 9 is much larger than the predetermined detection value. At this time, the steering bridge is in the neutral state. When the wheel hub 4 deflects to the left, the laser of the laser ranging sensor 9 hits the arc plate 16. At this time, the distance is smaller than the distance from the laser ranging sensor 9 to the sensing plate 6, which is a left turning state. On the contrary, when the laser feedback distance of the laser ranging sensor 9 is slightly larger than the distance from the sensor 9 to the sensing plate 6, it is a right turning state. Compared with the above two methods, one sensor 9 is reduced, which saves the equipment cost of the steering detection equipment.

[0040] refer to Figure 6 and Figure 8As shown, considering that the use environment of the vehicle is accompanied by a lot of dust and sometimes even mud, in order to prevent the sensing slot 15 from being covered by dust or mud and affecting the detection result, a cleaning component is fixed to one side of the connecting plate 8, and the cleaning component includes a mounting plate 17 fixed to one side of the connecting plate 8, and two symmetrically distributed arc strips 18 are fixed on the mounting plate 17, and the arc strips 18 are concentrically arranged with the rotating center 5, and connecting tubes 19 are fixed on the two arc strips 18, and the connecting tube 19 is provided with a connecting rod 20 that slides up and down, and the connecting rod 20 is connected to the connecting tube 1 9 is connected by a spring, a scraper 21 is fixed at one end of the connecting rod 20 away from the connecting tube 19, the scraper 21 contacts the sensing slot 15, and conical blocks 22 are fixed on both sides of the scraper 21. The end of the arc plate 16 close to the detection hole 14 is an arc surface, and the scraper 21 is arranged in the sensing slot 15 and contacts the sensing slot 15 through the arc strip 18, the connecting tube 19 and the scraper 21. When the sensing plate 6 is deflected, the scraper 21 cleans the dust accumulated in the sensing slot 15 to avoid excessive dust accumulation in the sensing slot 15 and affecting the detection result of the sensor 9;

[0041] Furthermore, in order to avoid obstruction between the arc plate 16 and the scraper during the rotation of the sensing plate 6, a horizontal connecting frame 23 is fixed on the connecting rod 20, and the connecting frame 23 includes two symmetrically distributed arc support bars 24, and the arc support bars 24 are arranged concentrically with the center of rotation 5. The two arc support bars 24 are fixed with the same connecting bar 25 at one end away from the connecting rod 20, and two symmetrically distributed contact balls 26 are fixed on the top of the connecting bar 25. The contact balls 26 are in contact with the sensing groove 15. Through the settings of the arc support bars 24, the connecting bars 25 and the contact balls 26, when the contact balls 26 contact with the arc plate 16, the contact balls 26 drive the connecting rod 20 to move downward, and the scraper 21 moves downward accordingly, thereby avoiding the influence of the arc plate 16 on the scraper 21.

[0042] refer to Figure 8 As shown, in order to prevent the dust or dirt scraped off by the scraper 21 from falling onto the sensor 9, an arc guide plate 27 is fixed to one side of the connecting strip 25. The arc guide plate 27 is arranged concentrically with the rotating center 5. The dirt scraped off by the scraper 21 is discharged to one side under the action of the arc guide plate 27.

[0043] refer to Figure 8 As shown, in order to prevent the connecting rod 20 from being wrapped by mud, which would affect the extension and retraction of the connecting rod 20 after long-term use, a conical cylinder 28 is coaxially arranged on the top of the connecting cylinder 19, and the conical cylinder 28 includes two symmetrically distributed semi-conical cylinders.

[0044] When the utility model is used:

[0045] The sensing plate 6 is fixed on the wheel hub 4, the connecting plate 8 is fixed on the front axle 2, and the sensor 9 is installed on the connecting plate 8 and the sensor 9 is located below the detection slot 7;

[0046] The use process of Example 1: When the two sensors 9 are located in the connection slot 11 at the same time, it means that the steering bridge is in the neutral state. When the steering bridge turns left or right, one of the sensors 9 is blocked, and the data of the sensor 9 can be fed back to the detection display device in real time;

[0047] The use process of Example 2: When both sensors 9 are not blocked, the steering bridge is in a neutral state. If one of the sensors is blocked, it means that the steering bridge has turned. The specific turning direction depends on which sensor 9 is blocked.

[0048] The use process of Example 3: When the sensor 9 is coaxial with the detection hole 14, the distance feedback of the laser ranging sensor 9 is much greater than the predetermined detection value, and the steering bridge is in the neutral state at this time. When the wheel hub 4 deflects to the left, the laser of the laser ranging sensor 9 hits the arc plate 16. At this time, the distance is less than the distance from the laser ranging sensor 9 to the sensing plate 6, which is a left steering state. On the contrary, when the laser feedback distance of the laser ranging sensor 9 is slightly greater than the distance from the sensor 9 to the sensing plate 6, it is a right steering state.

[0049] At the same time, when the sensing plate 6 is deflected, the scraper 21 cleans the dust accumulated in the sensing groove 15. When the contact ball 26 contacts the arc plate 16, the contact ball 26 drives the connecting rod 20 to move downward, and the scraper 21 moves downward accordingly, thereby avoiding the influence of the arc plate 16 on the scraper 21.

[0050] 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 axle position detection device, comprising a steering axle body (1), characterized in that: The steering axle body (1) comprises a transversely placed front axle (2), a steering knuckle (3) is arranged on the front axle (2), both ends of the front axle (2) are rotatably connected to wheel hubs (4), the front axle (2) and the wheel hub (4) form a rotation center (5), and the end of the steering axle away from the front axle (2) is connected to the wheel hub (4); A sensing plate (6) is fixed on the wheel hub (4), the sensing plate (6) is an arc-shaped structure, the sensing plate (6) is arranged concentrically with the rotating center (5), a detection slot (7) is provided on the sensing plate (6), a connecting plate (8) located below the sensing plate (6) is fixed on the front axle (2), a sensor (9) is fixed on the connecting plate (8), the sensor (9) is located below the detection slot (7), and the sensor (9) is externally connected to a detection display device.

2. A steering axle position detection device according to claim 1, characterized in that: The detection slot (7) comprises two first arc-shaped slots (10) which are concentric but have different diameters. The two first arc-shaped slots (10) are arranged concentrically with the rotating center (5). A connecting slot (11) is provided between the two first arc-shaped slots (10). The connecting slot (11) and the two first arc-shaped slots (10) form a "Z"-shaped structure. The number of the sensors (9) is two. The sensors (9) are Hall sensors (9). The two sensors (9) are located below the first arc-shaped slots (10).

3. The steering axle position detection device according to claim 1, characterized in that: The detection slot (7) comprises a second arc-shaped slot (12) and a third arc-shaped slot (13); the second arc-shaped slot (12) is located in the middle of the sensing plate (6); the third arc-shaped slot (13) is located at the outer edge of the sensing plate (6); the second arc-shaped slot (12) and the third arc-shaped slot (13) are respectively arranged concentrically with the rotating center (5); two sensors (9) correspond to the second arc-shaped slot (12) and the third arc-shaped slot (13) respectively; the number of the sensors (9) is two; the sensors (9) are Hall sensors (9); and the two sensors (9) are respectively located in the second arc-shaped slot (12) and the third arc-shaped slot (13).

4. The steering axle position detection device according to claim 1, characterized in that: The detection slot (7) comprises a detection hole (14) located in the middle of the sensing plate (6); an arc-shaped sensing slot (15) is provided at the bottom of the sensing plate (6); the detection hole (14) passes through the sensing slot (15); the sensing slot (15) is arranged concentrically with the rotating center (5); an arc-shaped plate (16) is fixed at one end of the sensing slot (15); the thickness of the arc-shaped plate (16) is greater than the depth of the sensing slot (15); a sensor (9) located below the detection hole (14) is fixed on the connecting plate (8); the sensor (9) is a laser distance measuring sensor (9).

5. A steering axle position detection device according to claim 4, characterized in that: A cleaning assembly is fixed to one side of the connecting plate (8), and the cleaning assembly includes a mounting plate (17) fixed to one side of the connecting plate (8), and two symmetrically distributed arc strips (18) are fixed to the mounting plate (17), and the arc strips (18) are arranged concentrically with the rotating center (5), and a connecting tube (19) is fixed to each of the two arc strips (18), and a connecting rod (20) that slides up and down is arranged on the connecting tube (19), and the connecting rod (20) is connected to the connecting tube (19) by a spring, and a scraper (21) is fixed to one end of the connecting rod (20) away from the connecting tube (19), and the scraper (21) contacts the sensing groove (15), and conical blocks (22) are fixed to both sides of the scraper (21), and one end of the arc plate (16) close to the detection hole (14) is an arc surface; A horizontal connecting frame (23) is fixed on the connecting rod (20), and the connecting frame (23) includes two symmetrically distributed arc-shaped support bars (24), and the arc-shaped support bars (24) are arranged concentrically with the center of rotation (5). The ends of the two arc-shaped support bars (24) away from the connecting rod (20) are fixed with the same connecting bar (25), and two symmetrically distributed contact balls (26) are fixed on the top of the connecting bar (25), and the contact balls (26) are in contact with the sensing groove (15).

6. A steering axle position detection device according to claim 5, characterized in that: An arc-shaped guide plate (27) is fixed to one side of the connecting strip (25), and the arc-shaped guide plate (27) is arranged concentrically with the rotating center (5).

7. A steering axle position detection device according to claim 6, characterized in that: A conical cylinder (28) is coaxially arranged on the top of the connecting cylinder (19), and the conical cylinder (28) comprises two symmetrically distributed half-conical cylinders.

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