Tire steering angle measuring device and sprayer

Abstract

The application relates to the technical field of agricultural machinery, in particular to a tire steering angle measuring device and a spraying machine. The tire steering angle measuring device comprises a chassis assembly, a bridge leg assembly, a suspension assembly, a tire assembly and an angle sensor. The bridge leg assembly is connected with the chassis assembly. The suspension assembly is rotationally connected with the bridge leg assembly. The tire assembly is fixedly connected with the suspension assembly. The fixed end of the angle sensor is fixedly connected with the bridge leg assembly, the detection end of the angle sensor is fixedly connected with the suspension assembly, and the suspension assembly can synchronously drive the detection end of the angle sensor to rotate relative to the bridge leg assembly and the fixed end of the angle sensor. In the application, the fixed end of the angle sensor is fixed, the detection end of the angle sensor is synchronously rotated with the suspension assembly, the steering angle of the tire assembly can be detected, the problem that the steering angle of the tire cannot be detected is solved, and the structure is simple and reliable.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, and in particular to a tire steering angle measuring device and a sprayer. Background Technology

[0002] Currently, with the development of larger, more intelligent, and more efficient sprayers, the tire steering of sprayers has been upgraded from the traditional two-wheel steering to two-wheel steering, four-wheel steering, and wedge steering. This places higher demands on the tire steering structure of sprayers. Currently, one end of the four-wheel steering mechanism of a sprayer follows the hydraulic system and is controlled by the hydraulic system to steer, while the other end needs to feed back the steering angle to the electronic control system so that the electronic control system can further issue instructions to control the hydraulic system and continue the entire tire steering process. Therefore, it is necessary to detect the tire steering angle information in real time during the operation of the sprayer. Thus, it is currently necessary to develop a device that can effectively detect the angle of the sprayer tires. Utility Model Content

[0003] The purpose of this application is to provide a tire steering angle measuring device and a sprayer, which to a certain extent solves the technical problem of the need to develop a device that can effectively detect the angle of the tires of a sprayer.

[0004] This application provides a tire steering angle measuring device, including: a chassis assembly, an axle leg assembly, a suspension assembly, a tire assembly, and an angle sensor; wherein, the axle leg assembly is connected to the chassis assembly; the suspension assembly is rotatably connected to the axle leg assembly, and the suspension assembly is rotatable relative to the axle leg assembly; the tire assembly is fixedly connected to the suspension assembly; The fixed end of the angle sensor is fixedly connected to the axle leg assembly, the detection end of the angle sensor is fixedly connected to the suspension assembly, and the suspension assembly can synchronously drive the detection end of the angle sensor to rotate relative to the axle leg assembly and the fixed end of the angle sensor.

[0005] In the above technical solution, the tire steering angle measuring device further includes a first fastening member and a support plate; wherein, the lower suspension of the suspension assembly is sleeved outside the pin of the axle leg assembly through a through hole; the support plate is pressed against the end of the pin and the end of the lower suspension, and the support plate is detachably connected to the pin through the first fastening member; the fixed end of the angle sensor is connected to the first fastening member.

[0006] In any of the above technical solutions, the tire steering angle measuring device further includes a fixing sleeve, the first fastening member has a mounting hole, the fixing sleeve is fixed in the mounting hole, and the fixed end of the angle sensor is inserted into the fixing sleeve.

[0007] In any of the above technical solutions, the tire steering angle measuring device further includes a first set screw, the sidewall of the mounting hole is formed with a mounting through hole, the first set screw is installed in the mounting through hole and threadedly connected to the mounting through hole, and one end of the first set screw can pass through the mounting through hole to tighten the fixing sleeve.

[0008] In any of the above technical solutions, the tire steering angle measuring device further includes a second set screw, the fixing sleeve has a mounting through hole, the second set screw is installed in the mounting through hole and threadedly connected to the mounting through hole, and one end of the second set screw can pass through the mounting through hole to press the fixed end of the angle sensor.

[0009] In any of the above technical solutions, the cross-section of the fixed end of the angle sensor perpendicular to its length direction is D-shaped, and the cross-section of the mounting hole perpendicular to its depth direction is also D-shaped.

[0010] In any of the above technical solutions, the tire steering angle measuring device further includes a pad, and the pad is installed between the end of the support plate and the pin shaft and the end of the lower suspension.

[0011] In any of the above technical solutions, the tire steering angle measuring device further includes a flat pad, and the flat pad is installed between the limiting head of the first fastening member and the support plate.

[0012] In any of the above technical solutions, the tire steering angle measuring device further includes a support frame and a second fastening member; wherein the support frame is connected to the lower suspension of the suspension assembly; and the detection end of the angle sensor is detachably connected to the support frame through the second fastening member.

[0013] In any of the above technical solutions, the tire steering angle measuring device further includes a third fastening member, and the support frame and the lower suspension are detachably connected through the third fastening member.

[0014] In any of the above technical solutions, the support frame is U-shaped, and the two sides of the support frame are respectively connected to the two sides of the corresponding lower suspension.

[0015] Please also provide a sprayer that includes the tire steering angle measuring device described in any of the above technical solutions, and thus has all the beneficial technical effects of the tire steering angle measuring device, which will not be repeated here.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: In the tire steering angle measuring device provided in this application, the fixed end of the angle sensor, i.e. the rotating shaft, is kept stationary, while the detection end of the angle sensor rotates synchronously with the suspension assembly, thereby detecting the steering angle of the tire assembly. This solves the problem of the inability to detect the tire steering angle. Moreover, the mechanical structure used is simple and reliable, and it can detect the steering angle of the tire at any steering position in real time. It is simple and convenient to operate. Attached Figure Description To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the tire steering angle measuring device provided in the embodiments of this application; Figure 2 for Figure 1 A sectional view along section AA; Figure 3 for Figure 2 A magnified structural diagram at point B.

[0018] Figure label: 1-Chassis assembly, 2-Axle leg assembly, 21-Pin shaft, 3-Suspension assembly, 31-Lower suspension, 4-Tire assembly, 5-Angle sensor, 51-Fixed end, 52-Detection end, 6-First fastening component, 7-Panel, 8-Second set screw, 9-Fixing sleeve, 10-First set screw, 11-Washer plate, 12-Flat washer, 13-Support bracket, 14-Second fastening component, 15-Third fastening component. Detailed Implementation

[0019] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0020] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0021] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] The following reference Figures 1 to 3 This application describes a tire steering angle measuring device and a sprayer according to some embodiments.

[0025] Example 1 See Figures 1 to 3 As shown, an embodiment of this application provides a tire steering angle measuring device, including: a chassis assembly 1, an axle leg assembly 2, a suspension assembly 3, a tire assembly 4, and an angle sensor 5; wherein, the axle leg assembly 2 is connected to the chassis assembly 1; the suspension assembly 3 is rotatably connected to the axle leg assembly 2, and the suspension assembly 3 is capable of rotating relative to the axle leg assembly 2; the tire assembly 4 is fixedly connected to the suspension assembly 3; The fixed end 51 of the angle sensor 5 is fixedly connected to the axle leg assembly 2, and the detection end 52 of the angle sensor 5 is fixedly connected to the suspension assembly 3. The suspension assembly 3 can synchronously drive the detection end 52 of the angle sensor 5 to rotate relative to the axle leg assembly 2 and the fixed end 51 of the angle sensor 5.

[0026] As can be seen from the structure described above, the hydraulic system of agricultural machinery, such as a sprayer, drives the suspension assembly 3 to rotate, thereby driving the tire assembly 4 to rotate. During this process, the detection end 52 of the angle sensor 5 will also rotate synchronously with the suspension assembly 3 relative to the axle leg assembly 2 and the fixed end 51 of the angle sensor 5 itself. This allows for real-time detection of the steering angle of the tire at any steering position, and the detected data can be output to the control system of the agricultural machinery, such as the sprayer.

[0027] As can be seen, in this application, the fixed end 51 of the angle sensor 5, that is, the rotating shaft, is fixed and stationary, while the detection end 52 of the angle sensor 5 rotates synchronously with the suspension assembly 3, thereby detecting the steering angle of the tire assembly 4, thus solving the problem of the inability to detect the tire steering angle. Moreover, the mechanical structure used is simple and reliable, and can detect the steering angle of the tire at any steering position in real time. The operation is simple and convenient.

[0028] It should be noted that the angle sensor 5 has a fixed end 51 and a detection end 52. The detection end 52 can rotate relative to the fixed end 51. This part is an existing structure and will not be described in detail here. In addition, the aforementioned assembly structure will also not be described in detail, as they are all existing structures.

[0029] In this embodiment, preferably, as follows: Figure 2 and Figure 3 As shown, the tire steering angle measuring device also includes a first fastening member 6 and a support plate 7; wherein, the lower suspension 31 of the suspension assembly 3 is sleeved on the outside of the pin 21 of the axle leg assembly 2 through a through hole; the support plate 7 is pressed on the end of the pin 21 and the end of the lower suspension 31, and the support plate 7 is detachably connected to the pin 21 through the first fastening member 6; the fixed end 51 of the angle sensor 5 is connected to the first fastening member 6. As can be seen from the structure described above, the axle leg assembly 2 and the suspension assembly 3 are rotatably connected together by the pin 21. The structure is simple and stable, and the suspension assembly 3 can move axially in a small size along the pin 21. The support plate 7 serves as the limit device for downward movement.

[0030] Furthermore, preferably, the axle leg assembly 2 is provided with a first auxiliary mounting through hole, the lower suspension 31 is provided with a second auxiliary mounting through hole, and the aforementioned pin 21 is sequentially inserted into the first auxiliary mounting through hole and the second auxiliary mounting through hole.

[0031] In this embodiment, preferably, as follows: Figure 3 As shown, the tire steering angle measuring device also includes a fixing sleeve 9, the first fastening member 6 has a mounting hole, the fixing sleeve 9 is fixed in the mounting hole, and the fixing end 51 of the angle sensor 5 is inserted into the fixing sleeve 9. As can be seen from the structure described above, a mounting hole is opened in the limiting head of the first fastening member 6, such as a screw or bolt, and a fixing sleeve 9 is fixedly installed in the mounting hole. Then, the fixing end 51 of the angle sensor 5 is inserted into the fixing sleeve 9 to complete the initial assembly.

[0032] In this embodiment, preferably, as follows: Figure 3As shown, the tire steering angle measuring device also includes a first set screw 10. The sidewall of the mounting hole is formed with a mounting through hole. The first set screw 10 is installed in the mounting through hole and is threadedly connected to the mounting through hole. One end of the first set screw 10 can pass through the mounting through hole to tighten the fixing sleeve 9. As can be seen from the structure described above, after the fixed end 51 of the angle sensor 5 is assembled with the fixed sleeve 9, the first set screw 10 is then screwed toward the fixed sleeve 9, which will eventually press the fixed sleeve 9 against the inner wall of the mounting hole, thereby fixing the fixed sleeve 9. In this embodiment, preferably, as follows: Figure 3 As shown, the tire steering angle measuring device also includes a second set screw 8, a fixing sleeve 9 having a mounting through hole, the second set screw 8 being installed in the mounting through hole and threadedly connected to the mounting through hole, and one end of the second set screw 8 being able to pass through the mounting through hole to press the fixing end 51 of the angle sensor 5 against it.

[0033] As can be seen from the structure described above, after the fixed end 51 of the angle sensor 5 is assembled with the fixed sleeve 9, by screwing the second set screw 8 toward the fixed end 51 of the angle sensor 5, the end of the second set screw 8 will eventually press the fixed end 51 of the angle sensor 5 against the inner wall of the fixed sleeve 9, thereby fixing the fixed end 51 of the angle sensor 5. In this embodiment, preferably, as follows: Figure 3 As shown, the cross-section of the fixed end 51 of the angle sensor 5 perpendicular to its length direction is D-shaped, and the cross-section of the mounting hole of the fixing sleeve 9 perpendicular to its depth direction is also D-shaped. This makes the fixed end 51 of the angle sensor 5 more stably assembled with the mounting hole, and also plays a role in preventing rotation. Of course, it is not limited to this; the shape of the fixed end 51 and the mounting hole of the angle sensor 5 can be designed according to actual needs.

[0034] Furthermore, preferably, the aforementioned second set screw 8 can be abutted on the plane of the side of the fixed end 51 of the D-shaped structure to improve the fixing effect. Of course, it is not limited to this. The aforementioned first set screw 10 can also be abutted on the arc surface of the side wall of the fixed end 51, etc., depending on the actual needs.

[0035] In this embodiment, preferably, as follows: Figure 3 As shown, the tire steering angle measuring device also includes a pad 11, which is installed between the end of the support plate 7 and the pin 21 and the end of the lower suspension 31. As described above, a pad 11 is provided between one end of the pin 21 (i.e., the lower end) and the limiting head of the first fastening member 6 (e.g., a screw or bolt). This pad 11 is used to adjust the gap between the support plate 7 and the lower suspension 31. Once the gap between the support plate 7 and the lower suspension 31 meets the design requirements, it is locked using the first fastening member 6. Of course, this pad 11 may not be provided; the choice depends on the actual needs.

[0036] In this embodiment, preferably, as follows: Figure 3 As shown, the tire steering angle measuring device also includes a flat pad 12, which is installed between the limiting head of the first fastening member 6 and the support plate 7. As can be seen from the structure described above, this shim can be used to fill the gap between the first fastening component 6, such as a bolt or screw, and the support plate 7, and can also distribute the load and protect the components. Of course, this flat shim 12 can be omitted, depending on the actual needs.

[0037] In this embodiment, preferably, as follows: Figure 3 As shown, the tire steering angle measuring device also includes a support frame 13 and a second fastening member 14; wherein, the support frame 13 is connected to the lower suspension 31 of the suspension assembly 3; the detection end 52 of the angle sensor 5 is detachably connected to the support frame 13 through the second fastening member 14. As can be seen from the structure described above, the support frame 13 serves to support the detection end 52 of the angle sensor 5, making the detection end 52 of the angle sensor 5 more stable. Moreover, the detection end 52 of the angle sensor 5 and the support frame 13 are detachably connected by the second fastening component 14, such as screws or bolts, which facilitates installation and disassembly, and is especially convenient for later maintenance. Of course, it is not limited to this. The detection end 52 of the angle sensor 5 and the support frame 13 can also be connected by welding or snap-fit, depending on the actual needs.

[0038] In this embodiment, preferably, as follows: Figure 3 As shown, the tire steering angle measuring device also includes a third fastening member 15, and the support frame 13 and the lower suspension 31 are detachably connected via the third fastening member 15. As described above, the support frame 13 and the lower suspension 31 are detachably connected via a third fastening component 15, such as screws or bolts, facilitating installation and disassembly, and especially convenient for later maintenance. Of course, this is not the only option; the support frame 13 and the lower suspension 31 can also be connected by welding or snap-fitting, depending on the specific needs. In this embodiment, preferably, as follows: Figure 3 As shown, the support frame 13 is U-shaped, and the two sides of the support frame 13 are respectively connected to the two sides of the corresponding lower suspension 31. As can be seen from the structure described above, the support frame 13 adopts a U-shaped structure, which allows the two sides of the support frame 13 to be connected to the two sides of the lower suspension 31 respectively. This makes the support frame 13 more stable, thereby improving the support effect on the detection end 52 of the angle sensor 5.

[0039] Of course, the support frame 13 is not limited to U-shape, but can also be L-shaped or other shapes, depending on the actual needs.

[0040] In summary, the purpose of this application is to design a structure capable of detecting the actual steering angle position of a sprayer tire and transmitting the tire steering angle to the control system. Preferably, the suspension assembly 3 can rotate around the pin 21 on the axle leg assembly 2, thereby driving the tire assembly 4, which is fixedly connected to the suspension assembly 3, to rotate synchronously, thus controlling the tire steering. At this time, the detection end 52 of the angle sensor 5 is mounted on the lower suspension 31 of the suspension assembly 3 via the support bracket 13, i.e., the U-shaped bracket. The fixed end 51 of the angle sensor 5, i.e., the D-shaped rotating shaft, is fixed to the D-shaped fixing sleeve 9. The fixing sleeve 9 is fixed to the first fastening member 6, such as the positioning bolt, by the first set screw 10. The fixed end 51 of the angle sensor 5 is stationary, while the detection end 52 of the angle sensor 5 rotates with the suspension assembly 3. That is to say, the steering angle of the detection end 52 of the angle sensor 5 is consistent with the steering angle of the tire assembly 4, and thus the angle fed back by the angle sensor 5 is the tire steering angle. Example 2 Embodiment 2 of this application also provides a sprayer, which includes the tire steering angle measuring device described in Embodiment 1 above. Therefore, it has all the beneficial technical effects of the tire steering angle measuring device. The same technical features and beneficial effects will not be repeated here.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tire steering angle measuring device, characterized in that, include: The system includes a chassis assembly, an axle leg assembly, a suspension assembly, a tire assembly, and an angle sensor; wherein the axle leg assembly is connected to the chassis assembly. The suspension assembly is rotatably connected to the axle leg assembly, and the suspension assembly is rotatable relative to the axle leg assembly; the tire assembly is fixedly connected to the suspension assembly. The fixed end of the angle sensor is fixedly connected to the axle leg assembly, the detection end of the angle sensor is fixedly connected to the suspension assembly, and the suspension assembly can synchronously drive the detection end of the angle sensor to rotate relative to the axle leg assembly and the fixed end of the angle sensor.

2. The tire steering angle measuring device according to claim 1, characterized in that, The tire steering angle measuring device further includes a first fastening member and a support plate; wherein, the lower suspension of the suspension assembly is sleeved outside the pin of the axle leg assembly through a through hole; the support plate is pressed against the end of the pin and the end of the lower suspension, and the support plate is detachably connected to the pin through the first fastening member; the fixed end of the angle sensor is connected to the first fastening member.

3. The tire steering angle measuring device according to claim 2, characterized in that, The tire steering angle measuring device further includes a fixing sleeve, the first fastening member has a mounting hole, the fixing sleeve is fixed in the mounting hole, and the fixed end of the angle sensor is inserted into the fixing sleeve.

4. The tire steering angle measuring device according to claim 3, characterized in that, The tire steering angle measuring device further includes a first set screw. The sidewall of the mounting hole has a mounting through hole. The first set screw is installed in the mounting through hole and is threadedly connected to the mounting through hole. One end of the first set screw can pass through the mounting through hole to tighten the fixing sleeve.

5. The tire steering angle measuring device according to claim 3, characterized in that, The tire steering angle measuring device further includes a second set screw. The fixing sleeve has a mounting through hole, the second set screw is installed in the mounting through hole and threadedly connected to the mounting through hole, and one end of the second set screw can pass through the mounting through hole to press against the fixed end of the angle sensor; and / or The fixed end of the angle sensor has a D-shaped cross-section perpendicular to its length direction, and the mounting hole also has a D-shaped cross-section perpendicular to its depth direction.

6. The tire steering angle measuring device according to claim 2, characterized in that, The tire steering angle measuring device also includes a pad, which is installed between the end of the support plate and the pin shaft and the end of the lower suspension.

7. The tire steering angle measuring device according to claim 2, characterized in that, The tire steering angle measuring device further includes a flat pad, which is installed between the limiting head of the first fastening member and the support plate.

8. The tire steering angle measuring device according to any one of claims 1 to 7, characterized in that, The tire steering angle measuring device further includes a support frame and a second fastening component; wherein, the support frame is connected to the lower suspension of the suspension assembly; the detection end of the angle sensor is detachably connected to the support frame through the second fastening component.

9. The tire steering angle measuring device according to claim 8, characterized in that, The tire steering angle measuring device further includes a third fastening member, and the support frame and the lower suspension are detachably connected via the third fastening member; and / or The support frame is U-shaped, and its two sides are respectively connected to the two sides of the corresponding lower suspension.

10. A sprayer, characterized in that, The tire steering angle measuring device includes any one of claims 1 to 9.

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