Spray bar structure and spray bar sprayer
By incorporating a connecting rod assembly into the boom structure and using a small-range angle sensor to indirectly measure the rotation angle of the swing arm, the problem of the small range of the angle sensor is solved, thus improving the reliability and versatility of the boom sprayer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LOVOL HEAVY IND CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-09
AI Technical Summary
Existing angle sensors have a small measuring range and cannot be directly installed on components that require large-angle rotation, resulting in high procurement costs, long lead times, and insufficient reliability, which can easily lead to equipment failure.
By setting a connecting rod assembly in the spray bar structure, the rotation angle of the swing arm can be indirectly measured using a small-range angle sensor. This includes a specific connection method between the swing arm, the connecting rod assembly, and the angle sensor, enabling large-angle measurement.
This enables small-range angle sensors to measure large-angle rotation, improving the versatility of parts and reducing market failure risks and customer complaints.
Smart Images
Figure CN224332506U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of agricultural machinery, and in particular to boom structures and boom sprayers. Background Technology
[0002] Currently, the measuring range of angle sensors on the market is relatively small. In practical applications, the range of motion of rotating parts that needs to be measured is much larger than their applicable range, making it impossible to directly install and use this type of angle sensor. To address this issue, purchasing a large-range angle sensor corresponding to the range of motion of the rotating part would result in high procurement costs, long lead times, poor component interchangeability, and insufficient reliability due to lack of market validation, potentially leading to equipment failures and customer complaints.
[0003] Therefore, there is an urgent need for boom spraying structures and boom sprayers to address the technical problems existing in the current technology to some extent. Utility Model Content
[0004] The purpose of this application is to provide a boom structure and a boom sprayer that enables a small-range angle sensor to measure a swing arm rotating at a large angle.
[0005] This application provides a boom structure, mounted on the frame of a boom sprayer; the boom structure includes:
[0006] A swing arm, which is hinged to the frame via a first rotating member;
[0007] A linkage assembly, the first end of which is rotatably connected to the swing arm;
[0008] An angle sensor is fixed to the frame by a fastener, and the rotating shaft of the angle sensor is fixedly connected to the second end of the connecting rod assembly opposite to the first end.
[0009] In the above technical solution, the linkage assembly further includes a first linkage and a second linkage;
[0010] The first connecting rod and the second connecting rod are hinged together by a second rotating member;
[0011] The end of the first connecting rod that is away from the second connecting rod is the first end, and the first end of the first connecting rod is hinged to the swing arm through a third rotating member;
[0012] The end of the second link that is opposite to the first link is the second end, and the second end of the second link is fixedly connected to the rotating shaft of the angle sensor.
[0013] In the above technical solution, further, the hinge point of the swing arm on the frame is set as point O, the axis of the angle sensor is set as point A, the hinge point between the first connecting rod and the second connecting rod is set as point B, and the hinge point between the first connecting rod and the swing arm is set as point C; then the distance L between point O and point A is... oa The range is set between 90mm and 110mm; the distance L between point A and point B ab The range is set between 130mm and 150mm; the distance L between point B and point C is... b c The range is set between 110mm and 130mm; the distance L between point C and point O is... co The range is set between 90mm and 110mm.
[0014] In the above technical solution, further, the L oa It is 100mm; the L ab It is 140mm; the L b c It is 120mm; the L co It is 100mm.
[0015] In the above technical solution, further, when the rotation angle of the swing arm is set between 0° and 120°, and the rotation angle of the second connecting rod is set between 50.38° and 131.12°, the range of the angle sensor is 80.74°.
[0016] In the above technical solution, the first rotating component is a rotating shaft, and the swing arm is hinged to the frame through the rotating shaft.
[0017] In the above technical solution, the fixing component is a fixing bolt, and the angle sensor is fixed to the frame by the fixing bolt.
[0018] In the above technical solution, the second rotating member and the third rotating member are both pins, and the first connecting rod and the second connecting rod are hinged through the pins; the first end of the first connecting rod is connected to the swing arm through the pins.
[0019] This application also provides a boom sprayer, including the boom structure described above.
[0020] Compared with the prior art, this application has the following beneficial effects:
[0021] This application provides a boom structure, mounted on the frame of a boom sprayer; the boom structure includes:
[0022] A swing arm, which is hinged to the frame via a first rotating member;
[0023] A linkage assembly, the first end of which is rotatably connected to the swing arm;
[0024] An angle sensor is fixed to the frame by a fastener, and the rotating shaft of the angle sensor is fixedly connected to the second end of the connecting rod assembly opposite to the first end.
[0025] In summary, this application is equivalent to indirectly measuring the rotation angle of the swing arm by measuring the angle of the linkage assembly. Therefore, the measurement can be achieved using only a small-range angle sensor. It is worth noting that the innovation of this application is not in how to measure the rotation angle of the swing arm using an angle sensor, but in how to measure a swing arm with a large swing angle using a small-range angle sensor through the linkage assembly.
[0026] This application also provides a boom sprayer, including the boom structure described above. Therefore, it possesses all the beneficial effects of the boom structure described above, and will not be elaborated further. Attached Figure Description
[0027] 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.
[0028] Figure 1 A schematic diagram of the spray bar structure provided in this application from a first-view perspective;
[0029] Figure 2 The technical schematic diagram of the spray bar structure provided in this application;
[0030] Figure 3 A schematic diagram of the spray boom structure provided in this application from a second perspective;
[0031] Figure 4 A schematic diagram of the spray bar structure provided in this application from a third-person perspective;
[0032] Figure 5 for Figure 4 Enlarged view of point A in the image.
[0033] Reference numerals: 1-Swing arm; 101-First rotating component; 102-Rotation shaft;
[0034] 2-Linkage assembly; 201-First link; 202-Second link; 203-Second rotating component; 204-Pin;
[0035] 3-Angle sensor; 301-Shaft; 302-Fixing bolt;
[0036] 4-Frame; 401-First side end face; 402-Second side end face. Detailed Implementation
[0037] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order presented herein; rather, changes that will be apparent upon understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity. The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application. Throughout this specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. Conversely, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between. As used herein, the term "and / or" includes any one of the relevant items listed and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe individual components, assemblies, regions, layers, or portions, these components, assemblies, regions, layers, or portions are not limited by these terms. More precisely, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as such in the examples may also be referred to as the second component, assembly, region, layer, or part. For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element.Therefore, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., oscillating 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly. The terminology used herein is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures but include changes in shape that occur during manufacturing. The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible as will be apparent upon understanding the disclosure of this application.
[0038] Example 1
[0039] Currently available angle sensors on the market have relatively small measuring ranges. In practical applications, the range of motion of rotating parts that need to be measured is much larger than their applicable range, making it impossible to directly install and use this type of angle sensor. This application addresses this technical problem and provides a spray bar structure to solve the technical issues present in the prior art. The following section combines... Figures 1-4 This application provides a detailed description of a spray bar structure.
[0040] The boom structure is connected to the frame 4 of the boom sprayer. Since the boom structure needs to be opened from the frame 4 during use, i.e., rotated around the frame 4 by a certain angle, so that the boom structure is open on the frame 4, an angle sensor 3 is needed to measure the rotation angle of the boom structure to determine whether the boom structure has rotated to the correct position. Specifically, this application uses an angle sensor 3 with a small range capable of measuring the swing arm 1, which has a large rotation angle.
[0041] Specifically, the spray bar structure includes a swing arm 1, combined with... Figure 1 As shown, the swing arm 1 is hinged to the frame 4 via the first rotating member 101. Optionally, the first rotating member 101 is a rotating shaft 102, that is, the swing arm 1 is rotatably connected to the frame 4 via the rotating shaft 102, and the swing arm 1 can rotate around the rotating shaft 102.
[0042] Specifically, in combination Figure 1 , Figure 4 as well as Figure 5As shown, the spray bar structure also includes a connecting rod assembly 2. The first end of the connecting rod assembly 2 is rotatably connected to the swing arm 1, and the second end, opposite to the first end, is fixedly connected to the rotating shaft 301 of the angle sensor (the angle sensor is described below). Further integration... Figure 1 As shown, the linkage assembly 2 includes a first linkage 201 and a second linkage 202. The first linkage 201 and the second linkage 202 are hinged together by a second rotating member 203. Optionally, the second rotating member 203 is a pin 204, meaning the first linkage 201 and the second linkage 202 are hinged together by the pin 204. The end of the first linkage 201 facing away from the second linkage 202 is the first end, and this first end is hinged to the swing arm 1 by a third rotating member. Optionally, the third rotating member is a pin 204, meaning the first end of the first linkage 201 is hinged to the swing arm 1 by the pin 204. The end of the second linkage 202 facing away from the first linkage 201 is the second end, and this second end is fixedly connected to the rotating shaft 301 of the angle sensor.
[0043] Specifically, in combination Figure 1 ( Figure 1 As shown in the diagram (solid line represents the initial position of the swing arm, dashed line represents the state after the swing arm has rotated a certain angle), the spray boom structure also includes an angle sensor 3. The angle sensor 3 is fixed to the frame 4 by a fixing member, optionally a fixing bolt 302. That is, the angle sensor 3 is fixed to the frame 4 by the fixing bolt 302. Alternatively, the fixing member can be a pin. If the angle sensor 3 is located on the first side end face 401 of the frame 4, then the second connecting rod 202 is located on the second side end face 402 of the frame 4 opposite to the first side end face 401 (of course, the angle sensor 3 and the second connecting rod 202 can also be located on the same end face of the frame 4). Through the above-mentioned setting of the connecting rod assembly 2, the angle sensor 3 can measure the rotation angle of the swing arm 1 by measuring the rotation angle of the connecting rod assembly 2. That is, this application is equivalent to indirectly measuring the rotation angle of the swing arm by measuring the angle of the connecting rod assembly, so only a small-range angle sensor is needed to achieve the measurement. It is worth noting that the innovation of this application does not lie in how to measure the rotation angle of the swing arm with an angle sensor, but in how to measure the swing arm with a large swing angle with a small range angle sensor through the linkage assembly.
[0044] In this embodiment, the hinge point of the swing arm 1 on the frame 4 is set as point O, the axis of the angle sensor 3 is set as point A, the hinge point of the first link 201 and the second link 202 is set as point B, and the hinge point of the first link 201 and the swing arm 1 is set as point C; then the distance L between point O and point A is... oa The range is set between 90mm and 110mm; the distance L between point A and point B ab The range is set between 130mm and 150mm; the distance L between point B and point Cb c The range is set between 110mm and 130mm; the distance L between point C and point O co The range is set between 90mm and 110mm.
[0045] Optionally, L oa 100mm; L ab It is 140mm; L b c It is 120mm; L co The range is 100mm. When the rotation angle of the swing arm 1 is set between 0° and 120°, and the rotation angle of the second link 202 is set between 50.38° and 131.12°, the range of the angle sensor 3 is 80.74°.
[0046] The following is combined Figure 2 As shown, the process of deriving the above data is explained in detail.
[0047] First, set the hinge point of the swing arm 1 on the frame 4 as point O, the axis of the angle sensor 3 as point A, the hinge point of the first link 201 and the second link 202 as point B, and the hinge point of the first link 201 and the swing arm 1 as point C; let the distance between point O and point A be L. oa The distance between point A and point B is L. ab The distance between point B and point C is L. b c The distance between point C and point O is L. co .
[0048] Then, the angle α enclosed between BA and AO is the rotation angle of the second link 202, α = sensor detection angle + α0 (α0 is the initial angle of the second link 202).
[0049] Then there was...
[0050]
[0051] Then there's the rotation angle of the swing arm. ( : Figure 2 The initial rotation angle of OC); that is: .
[0052] If we take L oa 100mm; L ab It is 140mm; L b c It is 120mm; L co The value is 100mm; substituting into the above formula, we get: when When rotating between 25.4° (the initial zero angle of the swing arm) and 145.4° (the swing arm's limit position of 120°), the rotation angle α of the second link has a range of 50.38° to 131.12°, and the angle sensor range is 80.74°.
[0053] In practical applications, the length of the second connecting rod 202 can be adjusted appropriately to eliminate production and debugging errors, and the positions of each hinge point and the length of each connecting part are selected according to the actual situation.
[0054] In summary, through the above process, it is possible to use the existing small-range angle sensor 3 to measure the large rotation angle of the component, thereby improving the versatility of the parts and reducing the risks of market failures and customer complaints that may arise from the trial of new products.
[0055] Example 2
[0056] This application also provides a boom sprayer, including the boom structure described above. Therefore, it possesses all the beneficial effects of the boom structure described above, and will not be elaborated further.
[0057] 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 boom spraying structure, mounted on the frame of a boom sprayer; characterized in that, The spray bar structure includes: A swing arm, which is hinged to the frame via a first rotating member; A linkage assembly, the first end of which is rotatably connected to the swing arm; An angle sensor is fixed to the frame by a fastener, and the rotating shaft of the angle sensor is fixedly connected to the second end of the connecting rod assembly opposite to the first end.
2. The spray bar structure according to claim 1, characterized in that, The linkage assembly includes a first link and a second link; The first connecting rod and the second connecting rod are hinged together by a second rotating member; The end of the first connecting rod that is away from the second connecting rod is the first end, and the first end of the first connecting rod is hinged to the swing arm through a third rotating member; The end of the second link that is opposite to the first link is the second end, and the second end of the second link is fixedly connected to the rotating shaft of the angle sensor.
3. The spray bar structure according to claim 2, characterized in that, The hinge point between the swing arm and the frame is point O, the axis of the angle sensor is point A, the hinge point between the first connecting rod and the second connecting rod is point B, and the hinge point between the first connecting rod and the swing arm is point C; then, The distance L between point O and point A oa The range is set between 90mm and 110mm; the distance L between point A and point B ab The range is set between 130mm and 150mm; the distance L between point B and point C is... b c The range is set between 110mm and 130mm; the distance L between point C and point O is... co The range is set between 90mm and 110mm.
4. The spray bar structure according to claim 3, characterized in that, The L oa It is 100mm; the L ab It is 140mm; the L b c It is 120mm; the L co It is 100mm.
5. The spray bar structure according to claim 3, characterized in that, When the rotation angle of the swing arm is set between 0° and 120°, and the rotation angle of the second connecting rod is set between 50.38° and 131.12°, the range of the angle sensor is 80.74°.
6. The spray bar structure according to claim 2, characterized in that, The first rotating component is a rotating shaft, and the swing arm is hinged to the frame through the rotating shaft.
7. The spray bar structure according to claim 1, characterized in that, The fixing component is a fixing bolt, and the angle sensor is fixed to the frame by the fixing bolt.
8. The spray bar structure according to claim 2, characterized in that, Both the second rotating component and the third rotating component are pins, and the first connecting rod and the second connecting rod are hinged through the pins; the first end of the first connecting rod is connected to the swing arm through the pin.
9. A boom sprayer, characterized in that, Includes the spray bar structure described in any one of claims 1-8.